CN1868923A - Dephosphorize apparatus of sewage treatment plant - Google Patents

Dephosphorize apparatus of sewage treatment plant Download PDF

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Publication number
CN1868923A
CN1868923A CNA2006100841002A CN200610084100A CN1868923A CN 1868923 A CN1868923 A CN 1868923A CN A2006100841002 A CNA2006100841002 A CN A2006100841002A CN 200610084100 A CN200610084100 A CN 200610084100A CN 1868923 A CN1868923 A CN 1868923A
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organism
groove
dephosphorize
concentration
anaerobism groove
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CN100443422C (en
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小原卓巳
足利伸行
山本勝也
江幡享
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Toshiba Corp
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Toshiba Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/20—Sludge processing

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  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Activated Sludge Processes (AREA)
  • Treatment Of Sludge (AREA)

Abstract

This invention provides a phosphorus elimination apparatus used in sewage treatment plant, which can stably eliminate phosphorus from sewage by means of biological method, even in rainy days when the concentration of organic compounds decline. The apparatus comprises an anaerobic trough (10), an anoxia trough (11) and an aerobic trough (11). It supplies organic compounds for trough 21 by means of pump 19 and connects with the anaerobic trough (10). It obtains the organic compounds concentration in the sewage using UV spectrometer 25. The control device 101 bases on the signals from UV spectrometer 25, and let the pump 19 work when the organic compounds concentration declines to supplement organic compounds into the anaerobic trough 10.

Description

Dephosphorize apparatus of sewage treatment plant
Technical field
The present invention relates to dephosphorize apparatus of sewage treatment plant, relate in particular to and effectively to remove the dephosphorize apparatus of sewage treatment plant of dephosphorization.
Background technology
In the sewage-farm in the past, mainly be to remove organism by the technology that is called as activated sludge process, but in recent years, because the continuous eutrophication of enclosed waterss such as lakes and marhshes, gulf, therefore to not only removing organism, the requirement of also removing the advanced treatment of wastewater of nitrogen as the reason material of eutrophication, phosphorus increases gradually.
As the representative technology in the technology of removing organism nitrogen phosphorus simultaneously, with reference to the sewage-farm (for example referring to Patent Document 1 and 2) of containing anaerobic-anoxic-aerobic process (A2O technology).
Below, remove the mechanism of denitrification phosphorus in this technology of simple displaying.
The following nitrogen that carries out is removed.At first sewage is handled through anaerobism groove, anoxic groove and aerobic slot in turn.
Wherein, in aerobic slot, utilize the oxygen of being supplied with by aerating apparatus, nitrifier is with ammonium-nitrogen (NH 4-N) be oxidized to nitrite nitrogen (NO 2-N) and nitrate ammonia (NO 3-N).
By recycle pump the water in the aerobic slot is delivered to the anoxic groove.By breathing as the nitric acid breathing or the nitrous acidity of denitrifying bacteria under anoxia condition of nutrition source, with the nitrite nitrogen (NO that delivers in the anoxic groove with the organism that flows in the sewage 2-N) and nitrate ammonia (NO 3-N) be reduced into nitrogen (N 2), drain into outside the system.
As the reaction that removes denitrification with chemical formulation, then the nitration reaction of carrying out in aerobic slot is as follows.
As the denitrification reaction that carries out in the anoxic groove, the reaction when using methyl alcohol as organism as statement then is a following formula.
Carry out dephosphorization according to following principle.
At first, in the anaerobism groove, the poly-phosphorus bacteria in the active sludge is accumulated organic acids such as acetic acid in vivo, discharges phosphoric acid (PO 4).For the phosphorus of the phosphoric acid of this excessive release, utilize the excess ingestion phosphorus effect of poly-phosphorus bacteria in the aerobic slot of the backend configuration by being the anoxic groove, phosphorus than the more phosphoric acid that discharges at the anaerobism groove is absorbed by active sludge carry out dephosphorization.
That is, carry out smoothly, in the anaerobism groove, need organic acids such as acetic acid in order to make this reaction.Organic acid concentration diminished when rainwater flowed into, because the available organism of polyP bacteria reduces, therefore can not discharge the reaction of phosphorus fully.The situation generation that therefore situation of the excess ingestion reaction that can not fully carry out follow-up phosphorus is also arranged and only can not obtain target water quality by the biology dephosphorization.
The following time of situation that organic concentration diminishes when this rainwater flows into, as the organic means of supplementing out economy, drop in the oriented anaerobism groove organic method, with the primary sedimentation pond shunting make the high sewage of organic concentration concentration flow directly into the anaerobism groove method, drop into the mud of primary sedimentation pond method, make the sludge fermentation of primary sedimentation pond in ozone, dissolve the method etc. of input.
In addition, except that the biology dephosphorization, also has chemical phosphorus removal method.This method is removed dephosphorization by following way: the agglutinant accumulating tank that has agglutinants such as poly aluminium chloride, Tai-Ace S 150, ferric sulfate is set, injects these agglutinants, make the form precipitation of phosphorus composition with aluminum phosphate, tertiary iron phosphate according to following formula.
Though the method for this injection agglutinant is arranged during promotion phosphorus is removed, be to use agglutinant cost height, and, therefore be preferably and use the biological method dephosphorization as far as possible owing to the agglutinant of aluminium system is the reason material of alzheimer disease.
[patent documentation 1] Japanese Patent spy opens 2001-87793
[patent documentation 2] Japanese patent laid-open 11-290888
Summary of the invention
The problem that invention will solve
As above-mentioned, in sewage-farm in the past,
(1) there are when the influence by rainy day etc. causes organic concentration to descend the organism amount minimizing that poly-phosphorus bacteria utilizes, the problem of dephosphorization deterioration.
(2) though can promote dephosphorization by using agglutinant, but the cost height, the possibility of the influential environment of composition in the agglutinant.
The present invention is exactly the invention of considering these problems, and purpose provides in the sewage-farm, even when organic concentration is low when the rainy day etc., also can pass through biological action, stablizes the dephosphorize apparatus of sewage treatment plant of dephosphorization.
Solve the method for problem
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, the anaerobism groove that has primary sedimentation pond, connects at the downstream side of primary sedimentation pond, the aerobic slot that connects at the downstream side of anaerobism groove and supply with organic organism feed unit to the anaerobism groove, be provided with the transmitter of measuring the organic concentration in the inflow water that flows into the anaerobism groove, according to the signal that spreads out of from transmitter, by control device control organism feed unit.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, the organism feed unit possess organism supply with groove and between organism is supplied with groove and anaerobism groove, be provided with will supply with the pump of the organism of groove from organism to the supply of anaerobism groove, control device comes control pump according to the signal from transmitter, when organic substrate concentration less than benchmark value time running pump, when organic substrate concentration stops pump during greater than benchmark value.
The present invention is the dephosphorization apparatus in sewage-farm, it is characterized in that, the organism feed unit has upstream side and the shunt conduit of downstream side and the switch-valve of installing that connects primary sedimentation pond on shunt conduit, control device comes the trip switch valve according to the signal from transmitter, when organic substrate concentration is opened switch-valve during less than benchmark value, when organic substrate concentration is closed switch-valve during greater than benchmark value.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, the anaerobism groove that has primary sedimentation pond, connects at the downstream side of primary sedimentation pond, the aerobic slot that connects at the downstream side of anaerobism groove and supply with organic organism feed unit to the anaerobism groove, be provided with the transmitter of measuring the organic concentration in the inflow water that flows into the anaerobism groove, be provided with the ORP time meter of measuring ORP in the anaerobism groove, according to signal, control the organism feed unit by control device from transmitter and ORP time meter.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, the organism feed unit possess organism supply with groove and between organism is supplied with groove and anaerobism groove, be provided with will supply with the pump of the organism of groove from organism to the supply of anaerobism groove, control device comes control pump according to the signal from transmitter and ORP time meter, when organic substrate concentration less than benchmark value or ORP running pump during greater than any situation of benchmark value, stop pump during other situation.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, the organism feed unit has upstream side and the shunt conduit of downstream side and the switch-valve that is installed in shunt conduit that connects primary sedimentation pond, control device comes the trip switch valve according to the signal from transmitter and ORP time meter, open switch-valve less than benchmark value or ORP during greater than any situation of benchmark value when organic substrate concentration, close switch-valve during other situation.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, the anaerobism groove that is provided with primary sedimentation pond, connects at the downstream side of primary sedimentation pond, the aerobic slot that connects at the downstream side of anaerobism groove and supply with organic organism feed unit to the anaerobism groove, be provided with organic concentration of measuring in the inflow water that flows into the anaerobism groove and the transmitter that flows into flow, according to signal, by control device control organism feed unit from transmitter.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, the organism feed unit possess organism supply with groove and between organism is supplied with groove and anaerobism groove, be provided with will supply with the pump of the organism of groove from organism to the supply of anaerobism groove, control device is according to from the signal of transmitter, from the deviation between organic concentration and the benchmark value and flow into flow and obtain needed pumping capacity and come control pump.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, the organism feed unit has upstream side and the shunt conduit of downstream side and the switch-valve that is installed in shunt conduit that connects primary sedimentation pond, control device is according to from the signal of transmitter, obtains the deviation between organic concentration and the benchmark value and comes the trip switch valve from the bypass flow of the needs that flow into traffic income.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, is provided with pipeline or tempering tank between primary sedimentation pond and anaerobism groove, is provided with the transmitter of measuring the organic concentration in the inflow water that flows into the anaerobism groove in pipeline or tempering tank.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, the organism feed unit has upstream side and the shunt conduit of downstream side and the switch-valve that is installed in shunt conduit that connects primary sedimentation pond, control device comes the trip switch valve according to the signal from transmitter, when organic substrate concentration is opened switch-valve during less than benchmark value, when organic substrate concentration is closed switch-valve during greater than benchmark value.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, transmitter is set on pipeline, and the link position of the downstream side of shunt conduit is positioned at the leading portion of transmitter.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, the phosphoric acid meter is set in aerobic slot, and control device comes control pump according to the signal from the phosphoric acid meter.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, the phosphoric acid meter is set in aerobic slot, and control device comes the trip switch valve according to the signal from the phosphoric acid meter.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, have primary sedimentation pond is arranged, the anaerobism groove that connects at the downstream side of primary sedimentation pond, the aerobic slot that connects at the downstream side of anaerobism groove and supply with organic organism feed unit to the anaerobism groove, be provided with organic concentration of measuring in the inflow water that flows into the anaerobism groove and the transmitter that flows into flow, control device is according to controlling the organism feed unit from the signal of transmitter, and this control device has from the deviation between organic concentration and the benchmark value and flows into the not enough organism calculating part that flow calculates not enough organism amount.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, the organism feed unit possess organism supply with groove and between organism is supplied with groove and anaerobism groove, be provided with will supply with the pump of the organism of groove from organism to the supply of anaerobism groove, lack of foundation that the organism amount is come control pump for control device.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, the organism feed unit has upstream side and the shunt conduit of downstream side and the switch-valve that is installed in shunt conduit that connects primary sedimentation pond, and lack of foundation that the organism amount is come the trip switch valve for control device.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, has primary sedimentation pond, the anaerobism groove that connects at the downstream side of primary sedimentation pond, the aerobic slot that connects at the downstream side of anaerobism groove and supply with organic organism feed unit to the anaerobism groove, be provided with the influx of predicting sewage according to information in the past, the inflow prediction section of organic concentration and phosphorus concentration, control the organism feed unit by control device, in this control device and have serving as from predicting the outcome of this inflow water prediction section according to calculating the not enough organism calculating part of not enough organism amount.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, the organism feed unit possess organism supply with groove and between organism is supplied with groove and anaerobism groove, be provided with will supply with the pump of the organism of groove from organism to the supply of anaerobism groove, lack of foundation that the organism amount is come control pump for control device.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, the organism feed unit has upstream side and the shunt conduit of downstream side and the switch-valve that is installed in shunt conduit that connects primary sedimentation pond, and lack of foundation that the organism amount is come the trip switch valve for control device.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, the agglutinant injection device that will have the agglutinant injection pump is connected with aerobic slot, control device control agglutinant injection pump.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, has primary sedimentation pond, the anaerobism groove that connects at the downstream side of primary sedimentation pond, the aerobic slot that connects at the downstream side of anaerobism groove and supply with organic organism feed unit to the anaerobism groove, be provided with the foldback pump that the solid substance in the secondary sedimentation basins (Japanese: Final Shen Dianchi) is returned to the anaerobism groove, be provided with inflow phosphorus concentration of measuring in the inflow water that flows into the anaerobism groove and the transmitter that flows into flow, be provided with the outflow phosphorus concentration meter of measurement from the effusive outflow phosphorus concentration of anaerobism groove, be provided with the foldback under meter of mensuration by the foldback flow of foldback pump institute foldback, the control device basis is from transmitter, the signal that flows out phosphorus concentration meter and foldback under meter is controlled the organism feed unit.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, the organism feed unit possess organism supply with groove and organism supply be provided with between groove and the anaerobism groove will supply with the organism supply pump that the organism of groove is supplied with to the anaerobism groove from organism.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, according to signal from transmitter, outflow phosphorus concentration meter and foldback under meter, try to achieve the phosphorus amount that flows into by inflow phosphorus concentration that flows into the anaerobism groove and the product that flows into flow, the inflow flow that flows into the anaerobism groove be multiply by from the outflow phosphorus concentration of anaerobism groove with foldback flow sum try to achieve outflow phosphorus amount, try to achieve the phosphorus output by this outflow phosphorus amount and the difference that flows into the phosphorus amount, when the phosphorus output when prescribed value is following, control device makes the work of organism supply pump.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, be provided with observed value memory portion with many days the phosphorus output of trying to achieve by control device memory, to be sent to the controlled target configuration part from the mean value of the phosphorus output of observed value memory portion, control device is being that benchmark makes the work of organism supply pump by this controlled target configuration part target value set.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, be provided with the 1st solid concentration meter of measuring the solid concentration in the aerobic slot, be provided with the 2nd solid concentration meter of mensuration by the solid concentration of foldback pump foldback, also being provided with mensuration flows out appending of phosphorus concentration and flows out the phosphorus concentration meter from effusive the appending of anaerobism groove, the control device basis is from transmitter, flow out the signal of phosphorus concentration meter and foldback under meter, also according to flowing out the phosphorus concentration meter from appending, the signal of the 1st solid concentration meter and the 2nd solid concentration meter, will from the effusive outflow phosphorus concentration of anaerobism groove with from aerobic slot effusive append flow out phosphorus concentration difference divided by the solid concentration in the aerobic slot, try to achieve phosphorus concentration contained in the solid substance, by solid concentration by foldback pump foldback, contained phosphorus concentration and foldback flow in the solid substance, try to achieve phosphorus amount to anaerobism groove foldback, try to achieve the phosphorus amount that flows into by inflow phosphorus concentration that flows into the anaerobism groove and the product that flows into flow, the inflow flow that flows into the anaerobism groove be multiply by from the outflow phosphorus concentration of anaerobism groove with foldback flow sum try to achieve outflow phosphorus amount, try to achieve the phosphorus output by this outflow phosphorus amount and the difference that flows into the phosphorus amount, when phosphorus output during divided by situation below prescribed value of the value of the phosphorus amount gained that is returned to the anaerobism groove, control device makes the work of organism supply pump.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, to link to each other with primary sedimentation pond by the sludge pipe of suction pump sucking sludge, organism is supplied with groove be connected with this sludge pipe, this organism is supplied with groove and is formed by the dissolved groove with sludge fermentation function.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, to link to each other with primary sedimentation pond by the sludge pipe of suction pump sucking sludge, organism is supplied with groove be connected with this sludge pipe, this organism is supplied with groove and is formed by the dissolved groove with ozone injection portion.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, to link to each other with secondary sedimentation basins by the excess sludge pipeline that residual pump aspirates excess sludge, organism is supplied with groove and this excess sludge pipe connection, this organism is supplied with groove and is formed by the dissolved groove with sludge fermentation function.
The present invention is a dephosphorize apparatus of sewage treatment plant, it is characterized in that, to link to each other with secondary sedimentation basins by the excess sludge pipeline that residual pump aspirates excess sludge, organism is supplied with groove link to each other with this excess sludge pipeline, this organism is supplied with groove and is formed by the dissolved groove with ozone injection portion.
The effect of invention
As above, by the present invention, even under the situation that organic concentrations such as rainy day descend, also available biological method stably removes dephosphorization from sewage.
Description of drawings
[Fig. 1] shows the structure iron of the 1st embodiment of dephosphorize apparatus of sewage treatment plant of the present invention.
[Fig. 2] shows the structure iron of the 2nd embodiment of dephosphorize apparatus of sewage treatment plant of the present invention.
[Fig. 3] shows the structure iron of the 3rd embodiment of dephosphorize apparatus of sewage treatment plant of the present invention.
[Fig. 4] shows the structure iron of the 4th embodiment of dephosphorize apparatus of sewage treatment plant of the present invention.
[Fig. 5] shows the structure iron of the 5th embodiment of dephosphorize apparatus of sewage treatment plant of the present invention.
[Fig. 6] shows the structure iron of the 6th embodiment of dephosphorize apparatus of sewage treatment plant of the present invention.
[Fig. 7] shows the structure iron of the 7th embodiment of dephosphorize apparatus of sewage treatment plant of the present invention.
[Fig. 8] shows the structure iron of the 8th embodiment of dephosphorize apparatus of sewage treatment plant of the present invention.
[Fig. 9] shows the structure iron of the 9th embodiment of dephosphorize apparatus of sewage treatment plant of the present invention.
[Figure 10] shows the structure iron of the 10th embodiment of dephosphorize apparatus of sewage treatment plant of the present invention.
[Figure 11] shows the structure iron of the 10th embodiment of dephosphorize apparatus of sewage treatment plant of the present invention.
[Figure 12] shows the deformation pattern of the 11st embodiment of dephosphorize apparatus of sewage treatment plant of the present invention.
[Figure 13] shows the structure iron of the 12nd embodiment of dephosphorize apparatus of sewage treatment plant of the present invention.
[Figure 14] shows the structure iron of the 13rd embodiment of dephosphorize apparatus of sewage treatment plant of the present invention.
[Figure 15] shows the structure iron of the 14th embodiment of dephosphorize apparatus of sewage treatment plant of the present invention.
[Figure 16] shows the structure iron of the 15th embodiment of dephosphorize apparatus of sewage treatment plant of the present invention.
[explanation of symbol]
1 sewage
2 primary sedimentation ponds
3 treating water
9 aerating apparatuss
10 anaerobism grooves
11 anoxic grooves
12 aerobic slots
13 secondary sedimentation basinss
14 recycle pumps
15 foldback pumps
16 agglutinant injection pumps
17 residual pumps
19 carbon source supply pumps
21 carbon source accumulating tanks
22 agglutinant accumulating tanks
23 diverting valves
25 UV meter
59 shunt conduit
101 control device
The 101a control device
102 control device
103 control device
104 control device
Embodiment
The 1st embodiment
Below, embodiments of the present invention are described with reference to the accompanying drawings.Fig. 1 is the synoptic diagram of the 1st embodiment of dephosphorize apparatus of sewage treatment plant of the present invention.
As shown in Figure 1, dephosphorize apparatus of sewage treatment plant have primary sedimentation pond 2, the anaerobism groove 10 that connects at the downstream side of primary sedimentation pond 2, the anoxic groove 11 that connects at the downstream side of anaerobism groove 10, the aerobic slot 12 that connects at the downstream side of anoxic groove 11, the secondary sedimentation basins 13 that connects at the downstream side of aerobic slot 12.
By pump 19 carbon source accumulating tank (organism supplying layer) 21 is connected with anaerobism groove 10, between aerobic slot 12 and anoxic groove 11, is connected with the circulating line 53 of recycle pump 14 again.Connect foldback conduit 54 again between secondary sedimentation basins 13 and anaerobism groove 10,54 are equipped with the foldback pump 15 that the solid substance (mud) in the secondary sedimentation basins 13 is returned to anaerobism groove 10 in this foldback conduit.
In addition, by aerating apparatus 9, oxygen is delivered to aerobic slot 12.
Between the pipeline 50 and anaerobism groove 10 of the upstream side of primary sedimentation pond 2, the shunt conduit 59 of shunting primary sedimentation pond 2 is set again, the diverting valve (being also referred to as switch-valve) 23 that is formed by magnetic valve is installed on this shunt conduit 59.
In addition, constitute the organism feed unit, also can constitute this organism feed unit by shunt conduit 59 and diverting valve by pump 19 and carbon source accumulating tank 21.
In addition, in the pipeline 51 between primary sedimentation pond 2 and anaerobism groove 10, be provided with and measure the UV meter 25 that flows into the organic concentration in the anaerobism groove 10.At primary sedimentation pond 2 and secondary sedimentation basins 13, connect the sludge pipe 58,55 of suction solid substance (mud) respectively, at sludge pipe 58,55 suction pump 18 and residual pump 17 are set respectively.
In addition, constitute the organism feed unit, also can constitute this organism feed unit by shunt conduit 59 and diverting valve 23 by pump 19 and carbon source accumulating tank 21.
Sludge pipe 58,55 is connected with mud accumulating tank 20 respectively.
In addition, by agglutinant injection pump 16 agglutinant accumulating tank 22 is connected with aerobic slot 12.
In addition, will count 25 signal from UV and be sent to control device 103, and use to flow into organic concentration benchmark value 100, come control pump 19, will be supplied to from the carbon source of carbon source accumulating tank 21 in the anaerobism groove 10 by this control device 101.
The following describes the effect of the present embodiment of formation like this.
At first, sewage 1 flow into primary sedimentation pond 2 by pipeline 50, to deliver to anaerobism groove 10, anoxic groove 11 and aerobic slot 12 in turn from the water after the clarification of primary sedimentation pond 2 and handle, by secondary sedimentation basins, be discharged as treating water 3 afterwards from pipeline 60.
Below, the mechanism of removing denitrification phosphorus in this technical process is described.
Remove denitrification according to following method.
In the aerobic slot 12, nitrifier utilizes the oxygen of being supplied with by aerating apparatus 9, with ammonium-nitrogen (NH 4-N) be oxidized to nitrite nitrogen (NO 2-N) and nitrate ammonia (NO 3-N).
Deliver to the nitrite nitrogen (NO of anoxic groove 11 by aerobic slot 12 by recycle pump 14 2-N) and nitrate ammonia (NO 3-N),, be reduced into nitrogen (N by being the nitric acid breathing or the acid breathing of nitrous of denitrifying bacteria under anoxia condition of nutrition source with the organism in the inflow sewage 2), be expelled to outside the system.
As nitrogen being removed the dereaction chemical formulation,
Then nitration reaction is carried out according to following formula:
。
As denitrification reaction, the reaction when using methyl alcohol as organism as expression then is a following formula.
On the other hand, carry out dephosphorization according to following mechanism.
In the anaerobism groove 10 that is disposed at anoxic groove 11 leading portions, the poly-phosphorus bacteria in the active sludge is accumulated organic acids such as acetic acid in vivo, discharges phosphoric acid (PO 4).For the phosphorus of the phosphoric acid of this excessive release, in the aerobic slot 12 of the back segment that is disposed at anoxic groove 11, utilize the phosphorus excess ingestion effect of poly-phosphorus bacteria, phosphorus than the more phosphoric acid that discharges at anaerobism groove 10 is absorbed carry out dephosphorization in the active sludge.
In order to carry out this reaction, in anaerobism groove 10, need organic acids such as acetic acid.Because organic acid concentration diminishes when rainwater flows into, the available organism of polyP bacteria reduces, and can not discharge the reaction of phosphorus fully.The situation generation that therefore situation of the excess ingestion reaction that can not fully carry out follow-up phosphorus is also arranged and only can not obtain target water quality by the biology dephosphorization.Like this, when rainwater flows into organic concentration and diminishes, in anaerobism groove 10, supply with organism by following effect.
At first, the measured value that 25 pairs of known UV meters flow into the organic concentrations in the anaerobism grooves 10 generally is associated with COD (chemical oxygen demand (COD)) as the representative index of organic concentration, and it concerns shown in (1) formula.
COD=aUV+b (1) formula
Measured value, a, the b of COD:COD concentration, UV:UV meter: relation conefficient
At this, when the organic concentration of being calculated by (1) formula by the measured value of UV meter 25 during less than the benchmark value of the organic concentration of setting, control device 103 pumps 19 that turn round will be supplied to anaerobism groove 10 from the carbon source of carbon source accumulating tank 21.Stop pump 19 when on the other hand, organic concentration is high.
As the standard of the set(ting)value of organic concentration, if any being about about 20 times organic concentration, then dephosphorization stably with respect to the phosphorus concentration that flows into water.
In the present embodiment, compare,, can in anaerobism groove 10, drop into organism in non-time-delay ground by using the high UV meter 25 of online property with BOD meter, COD meter and organic acid meter.
In addition, if UV meter 25 the upstream side of position at anaerobism groove 10 be set, then can be in arbitrary positions such as inside of primary sedimentation pond.
Technology is not limited to A2O technology shown in Figure 1, so long as have the technology of anaerobism groove, aerobic slot, can be any technology, flows into formula anaerobic-aerobic technology etc. as AO technology (anaerobic-aerobic technology), substep.
The 2nd embodiment
Below, by Fig. 2 the 2nd embodiment of the present invention is described.
Among Fig. 2,, omit detailed explanation for the additional prosign of the part identical with the 1st embodiment shown in Figure 1.
Dephosphorize apparatus of sewage treatment plant shown in Figure 2 has the A2O technology that is formed by anaerobism groove 10, anoxic groove 11 and aerobic slot 12.
In the pipeline 51 of the back segment of primary sedimentation pond 2, be provided with UV meter 25 as the organic concentration meter, in the shunt conduit 59 of shunting primary sedimentation pond 2, the diverting valve (switch-valve) 23 that is formed by magnetic valve is set.
Known, the measured value of UV meter 25 is generally with COD (chemical oxygen demand (COD)) as the representative index of organic concentration and is associated among Fig. 2, and it concerns shown in above-mentioned (1) formula.
Control device 102 control diverting valves 23, when the organic concentration that calculates by (1) formula by the measured value of UV meter 25 during less than the benchmark value of the organic concentration of setting, open the diverting valve 23 of shunting primary sedimentation pond 2, when organic substrate concentration is higher than the benchmark value of organic concentration, close diverting valve 23.
As the standard of the set(ting)value of organic concentration,, then can stablize dephosphorization if any being about about 20 times organic concentration with respect to the phosphorus concentration that flows into water.
In the present embodiment, compare with BOD meter, COD meter and organic acid meter, but by using the high UV meter 25 non-time-delays ground of online property to control.In addition, can be in anaerobism groove 10, supply with as the sewage before the high primary sedimentation pond of organic organic concentration, there is no need to be provided with the facility of accumulating carbon source, also need not spend the reagent expense of carbon source.
In addition, if UV meter 25 the upstream side of position at anaerobism groove 10 be set, then can be in arbitrary positions such as inside of primary sedimentation pond 2.
In addition, technology is not limited only to A2O technology, so long as have the technology of anaerobism groove, aerobic slot, can use any technology, flows into formula anaerobic-aerobic technology etc. as AO technology (anaerobic-aerobic technology), substep.
The 3rd embodiment
Below, by Fig. 3 the 2nd embodiment of the present invention is described.
Among Fig. 3,, omit detailed explanation for the additional prosign of the part identical with the 1st embodiment shown in Figure 1.
Dephosphorize apparatus of sewage treatment plant shown in Figure 3 has the A2O technology that is formed by anaerobism groove 10, anoxic groove 11 and aerobic slot 12.
In the pipeline 51 of the back segment of primary sedimentation pond 2, be provided with UV meter 25 as the organic concentration meter, in anaerobism groove 10, be provided with ORP meter 27.
Known, the measured value of UV meter 25 is generally with COD (chemical oxygen demand (COD)) as the representative index of organic concentration and is associated among Fig. 3, and it concerns shown in (1) formula.
COD=aUV+b (1) formula
COD:COD concentration, UV:UV instrumentation definite value, a, b: relation conefficient
ORP meter (oxidation-reduction potentiometer) 27 shown the index of the anaerobism degree of indication anaerobism groove 10.When the ORP of anaerobism groove 10 height (more than the 250mV), can not carry out sufficient phosphorus and discharge, there is the situation of dephosphorization deterioration to take place.
Control device 101a control pump 19, when the れ organic concentration that calculates gained according to (1) formula by the measured value of UV meter 25 was lower than the organic concentration benchmark value 100 of setting, running pump 19 was supplied with carbon sources to anaerobism groove 10, stops pump 19 when high.
In addition, even the organic concentrations that calculate gained by UV meter 25 are higher than the organic concentration benchmark value 100 of setting, but when the ORP of anaerobism groove 10 is high, the control device 101a pump 19 that also turns round, the input carbon source stops pump 19 when ORP hangs down to anaerobism groove 10 in.
In the present embodiment, compare, count 25 by using the high UV of online property, but non-time-delay ground drops into organism with BOD meter, COD meter and organic acid meter.In addition, because by also drop into organism when ORP is high, it is low-level that the anaerobism degree of anaerobism groove 10 is remained on, and therefore can more stably carry out dephosphorization.
In addition, if UV meter 25 the upstream side of position at anaerobism groove 10 be set, then can be in arbitrary positions such as inside of primary sedimentation pond 2.
In addition, technology is not limited to A 2O technology so long as have the technology of anaerobism groove, aerobic slot, can be used any technology, flows into formula anaerobic-aerobic technology etc. as AO technology (anaerobic-aerobic technology), substep.
The 4th embodiment
Below, by Fig. 4 the 4th embodiment of the present invention is described.
Among Fig. 4,, omit detailed explanation for the additional prosign of the part identical with the 1st embodiment shown in Figure 1.
Dephosphorize apparatus of sewage treatment plant shown in Figure 4 has the A2O technology that is formed by anaerobism groove 10, anoxic groove 11 and aerobic slot 12.
In the pipeline 51 of the back segment of primary sedimentation pond 2, be provided with UV meter 25 as the organic concentration meter, in anaerobism groove 10, be provided with ORP meter 27.
In addition, in the shunt conduit 59 of shunting primary sedimentation pond 2, be provided with diverting valve (magnetic valve) 23.
Known, the measured value of UV meter 25 is generally with COD (chemical oxygen demand (COD)) as the representative index of organic concentration and is associated among Fig. 4, and it concerns shown in above-mentioned (1) formula.
Control device 102 control diverting valves 23, when the organic concentration that calculates by (1) formula by the measured value of UV meter 25 during less than the organic concentration benchmark value 100 of setting, open the diverting valve 23 of the shunt conduit 59 of shunting primary sedimentation pond 2, close diverting valve 23 when high.
As the standard of the set(ting)value of organic concentration,, then can stablize dephosphorization if any being about about 20 times organic concentration with respect to the phosphorus concentration that flows into water.
In addition, even the organic concentrations that calculate gained by UV meter 25 are higher than the organic concentration benchmark value 100 of setting, but when the ORP of anaerobism groove 10 was high, control device 102 was also opened the diverting valve 23 of the shunt conduit 59 of shunting primary sedimentation pond 2, closes when low.
In the present embodiment, compare, count 25 by using the high UV of online property, but non-time-delay ground is controlled with BOD meter, COD meter and organic acid meter.In addition,, can therefore there is no need to be provided with the facility of accumulating carbon source, also need not spend the reagent expense of carbon source to the sewage before anaerobism groove 10 provides the high primary sedimentation pond of organic concentration as organism.
In addition, by also dropping into organism in the high situation of ORP, therefore the anaerobism degree that can keep the anaerobism groove can carry out stable dephosphorization low-level.
In addition, if UV meter 25 the upstream side of position at anaerobism groove 10 be set, then can be in arbitrary positions such as inside of primary sedimentation pond 2.
In addition, technology is not limited only to A2O technology, so long as have the technology of anaerobism groove, aerobic slot, can use any technology, flows into formula anaerobic-aerobic technology etc. as AO technology (anaerobic-aerobic technology), substep.
The 5th embodiment
Below, by Fig. 5 the 5th embodiment of the present invention is described.
Among Fig. 5,, omit detailed explanation for the additional prosign of the part identical with the 1st embodiment shown in Figure 1.
Dephosphorize apparatus of sewage treatment plant shown in Figure 5 has the A2O technology that is formed by anaerobism groove 10, anoxic groove 11 and aerobic slot 12.
In the pipeline 51 of the back segment of primary sedimentation pond 2, be provided with UV meter 25 and under meter 25a as the organic concentration meter.Carbon source injection pump 19 is by the revolution flow rate adjustable of control change device.
Known, the measured value of UV meter 25 is generally with COD (chemical oxygen demand (COD)) as the representative index of organic concentration and is associated among Fig. 5, and it concerns shown in above-mentioned (1) formula.
By control device 103, by according to the organic concentration benchmark value 100 of (1) organic concentration that formula derived, setting and the measured value of under meter 25a, according to (2) formula, try to achieve the flow of the carbon source that the benchmark value for the organic concentration that keeps setting needs.
Qcar (t)=(Csv-Cin (t))/(Ccarbon-Csv) * Qi n (t) (2) formula
Wherein, Qcar (t)≤0 o'clock Qcar (t)=0
Qcar (t): the calculated value of carbon source flow (m3/h), Csv: the benchmark value of organic concentration (mg/L), Cin (t): flow into organic concentration (convert and get) by UV instrumentation definite value (mg/L), Ccarbon: carbon source concentration (mg/L), Qin (t): inflow flow
The revolution of control device 103 control carbon source injection pumps makes the flow of carbon source become the flow of asking according to (2) formula.
In the present embodiment, compare, count 25 by using the high UV of online property, but non-time-delay ground is controlled with BOD meter, COD meter and organic acid meter.
In addition, be the requirement that reaches the carbon source of organic concentration benchmark value owing to calculated, need not add unnecessary organism, can reduce running cost by reducing the organism input amount.In addition,, therefore can make and flow into organic concentration stabilization, can more stably carry out dephosphorization owing to drop into more organism during necessary situation.
In addition, if UV meter 25 the upstream side of position at anaerobism groove 10 be set, then can be in arbitrary positions such as inside of primary sedimentation pond 2.
In addition, technology is not limited only to A2O technology, so long as have the technology of anaerobism groove, aerobic slot, can use any technology, flows into formula anaerobic-aerobic technology etc. as AO technology (anaerobic-aerobic technology), substep.
The control method of carbon source flow also can not be that the revolution by control pump 19 carries out, and uses by the adjustment valve is set on pipeline 57, carries out the method for flow control by the aperture adjustment of valve.
The 6th embodiment
Below, by Fig. 6 the 6th embodiment of the present invention is described.
Among Fig. 6,, omit detailed explanation for the additional prosign of the part identical with the 1st embodiment shown in Figure 1.
Dephosphorize apparatus of sewage treatment plant shown in Figure 6 has the A2O technology that is formed by anaerobism groove 10, anoxic groove 11 and aerobic slot 12.
In the pipeline 50 before flowing into primary sedimentation pond 2, be provided with UV meter 26, on the pipeline 51 of the back segment of primary sedimentation pond 2, be provided with UV meter 25 as the organic concentration meter as the organic concentration meter.
On the shunt conduit 59 of shunting primary sedimentation pond 2, diverting valve (motorized valve) 23 is set.
Known, the measured value of UV meter 25 is generally with COD (chemical oxygen demand (COD)) as the representative index of organic concentration and is associated among Fig. 6, and it concerns shown in above-mentioned (1) formula.
By control device 104, by by the measured value of UV meter 25,26 according to (1) organic concentration that formula derived (front and back of primary sedimentation pond 2), the organic concentration benchmark value of setting 100 and the measured value of under meter 25a, according to (3) formula, try to achieve the bypass flow that needs for the organic concentration that keeps setting.
Qbyp(t)＝(Csv-Cin1(t))/(Cin2(t)-Cin1(t))*Qin(t)
(3) formula
Wherein, Qbyp (t) was smaller or equal to 0 o'clock Qbyp (t)=0
Qbyp (t): the calculated value of bypass flow (m3/h), Csv: the benchmark value of organic concentration (mg/L), Cin1 (t): the anaerobism concentrated flow go into organic concentration (convert and get) by the measured value of UV meter 25 (mg/L), Cin2 (t): the inflow organic concentration before just heavy (convert and get) by the measured value of UV meter 26 (mg/L), Qin (t): the inflow flow
The valve opening of control device 104 control diverting valves 23 makes bypass flow become flow by (3) formula gained.
In the present embodiment, compare, count 25,26 by using the high UV of online property, but non-time-delay ground is controlled with BOD meter, COD meter and organic acid meter.
In addition,,, therefore the stabilization that flows into organic concentration can be reached, dephosphorization can be more stably carried out the bypass flow optimization owing to having calculated to reaching the bypass flow that the organic concentration benchmark value needs.
In addition, what need only UV meter 25,26 was provided with the position before flowing into anaerobism groove 10, then can be in arbitrary position.
In addition, technology is not limited only to A2O technology, so long as have the technology of anaerobism groove, aerobic slot, can use any technology, flows into formula anaerobic-aerobic technology etc. as AO technology (anaerobic-aerobic technology), substep.
The 7th embodiment
Below, by Fig. 7 the 7th embodiment is described.
Among Fig. 7,, omit detailed explanation for the additional prosign of the part identical with the 1st embodiment shown in Figure 1.
Dephosphorize apparatus of sewage treatment plant shown in Figure 7 has the A2O technology that is formed by anaerobism groove 10, anoxic groove 11 and aerobic slot 12.
At the pipeline 51 of the back segment that is arranged in primary sedimentation pond 2, be provided with UV meter 25 as the organic concentration meter.
In the shunt conduit 59 of shunting primary sedimentation pond 2, the end that continues of the downstream side of its pipeline is for to count the pipeline 51 of 25 leading portion portions than UV.
In shunt conduit 59, be provided with diverting valve (motorized valve) 23.
Known, the measured value of UV meter 25 is generally with COD (chemical oxygen demand (COD)) as the representative index of organic concentration and is associated among Fig. 7, and it concerns shown in above-mentioned (1) formula.
Control device 104 passes through the deviation by the organic concentration benchmark value 100 of the organic concentration of (1) formula derivation and setting, calculates branch by for example PI control device as one of universal controller shown in (4) formula
Qbip ( t ) = Qbip 0 - Kp { e ( t ) + 1 / Ti · ∫ 0 t e ( t ) dt } e ( t ) = Cin ( t ) - Csv
(4) formula
The stream flow makes the organic concentration of inflow keep certain.
Wherein, as Qbip (t) Qbip (t)=0 smaller or equal to 0 time
Bypass flow calculated value (the m of Qbip (t): the t during moment 3/ h), Qair 0: bypass flow initial value (m 3/ h), Kp: proportional gain (m 3/ gh), Ti: integration constant (h), e (t): deviation (mg/L)
Cin (t): the anaerobism concentrated flow go into organic concentration (convert and get) by the UV value (mg/L), the benchmark value (mg/L) of organic concentration
The valve opening of control device 104 control diverting valves 23 makes bypass flow become the flow that (4) formula is asked.
In the present embodiment, compare, count 25 by using the high UV of online property, but non-time-delay ground is controlled with BOD meter, COD meter and organic acid meter.
Become the pipeline 51 of the leading portion of UV meter 25 in addition by the link position with the downstream side of shunt conduit 59, can realize driving by the feedback system of PI control device, it is 25 just passable to use 1 UV to count.
In addition, UV counts 25 the position that is provided with, also can be in being the mixolimnion 51A that is provided with between primary sedimentation pond 2 and the anaerobism groove 10.
In addition, technology is not limited only to A2O technology, so long as have the technology of anaerobism groove, aerobic slot, can use any technology, flows into formula anaerobic-aerobic technology etc. as AO technology (anaerobic-aerobic technology), substep.
The 8th embodiment
Below, by Fig. 8 the 8th embodiment of the present invention is described.
Among Fig. 8,, omit detailed explanation for the additional prosign of the part identical with the 1st embodiment shown in Figure 1.
Dephosphorize apparatus of sewage treatment plant shown in Figure 8 has the A2O technology that is formed by anaerobism groove 10, anoxic groove 11 and aerobic slot 12.
In the pipeline 51 of the back segment of primary sedimentation pond 2, be provided with UV meter 25 and under meter 25a as the organic concentration meter.Wherein, constitute transmitter by UV meter 25 and under meter 25a.
Carbon source injection pump 19 can be adjusted flow by the revolution of control change device.
In the shunt conduit 59 of shunting primary sedimentation pond 2, the end that continues of its pipeline is for to count the pipeline 59 of 25 leading portion portions than UV.In shunt conduit 59, diverting valve (motorized valve) 23 is set.
Among Fig. 8, control device 104 is poor according to the benchmark value of the measured value that is arranged at the ORP meter 27 in the anaerobism groove 10 and anaerobism groove ORP, for example by the calculating formula as (5) formula the injection rate Qbip (t) by (4) formula calculating gained is proofreaied and correct.
Figure A20061008410000231
(5) formula
Bypass flow calculated value (the m of Qbip (t): the t during moment 3/ h), the bypass flow correction value (m of Qbip (t) ': t constantly the time 3/ h), K: constant,
ORP (t): anaerobism groove ORP value (mV), ORPsv: the benchmark value (mV) of anaerobism groove ORP
Then, control device 104 uses the bypass flow correction value of being asked by (5) formula to control diverting valve 23.
In the present embodiment, compare, count 25 by using the high UV of online property, but non-time-delay ground is controlled with BOD meter, COD meter and organic acid meter.
In addition,, when ORP is high, can increase fractional flow,, can reduce the ORP value, can make more stabilization of dephosphorization by dropping into the high sewage of organic concentration to the anaerobism groove by using the ORP meter 27 that is provided with at anaerobism groove 10.。
In addition, UV meter 25 is provided with in the tempering tank that the position also can be located at setting between primary sedimentation pond 2 and the anaerobism groove 10.
In addition, technology is not limited only to A2O technology, so long as have the technology of anaerobism groove, aerobic slot, can use any technology, flows into formula anaerobic-aerobic technology etc. as AO technology (anaerobic-aerobic technology), substep.
The 9th embodiment
Below, by Fig. 9 the 9th embodiment of the present invention is described.
Among Fig. 9,, omit detailed explanation for the additional prosign of the part identical with the 1st embodiment shown in Figure 1.
Dephosphorize apparatus of sewage treatment plant shown in Figure 9 has the A2O technology that is formed by anaerobism groove 10, anoxic groove 11 and aerobic slot 12.
In the pipeline 51 of the back segment of primary sedimentation pond 2, be provided with UV meter 25 and under meter 25a as the organic concentration meter.Phosphoric acid meter 28 is set in aerobic slot 12.Wherein, constitute transmitter by UV meter 25 and under meter 25a.
By the revolution of control change device, carbon source injection pump 19 flow rate adjustables.
Among Fig. 9, control device 103 is for example proofreaied and correct the injection rate Qcar (t) by (3) formula calculating gained by the calculating formula as (6) formula according to the benchmark value of phosphoric acid concentration and deviation by the phosphoric acid concentration of phosphoric acid meter 28 gained.
Figure A20061008410000241
(6) formula
Calculated value (the m of the carbon source flow of Qcar (t): the t during moment 3/ h), the flux modification value (m of the carbon source of Qbip (t) ': t constantly the time 3/ h), K: constant,
PO4 (t): aerobic slot phosphoric acid concentration (mg/L), PO4sv: the benchmark value of aerobic slot phosphoric acid (mV)
Then, control device 103 comes control pump 19 according to the flux modification value of the carbon source of being asked by (6) formula.
The 10th embodiment
Below, by Figure 10 the 10th embodiment of the present invention is described.
Among Figure 10,, omit detailed explanation for the additional prosign of the part identical with the 1st embodiment shown in Figure 1.
Dephosphorize apparatus of sewage treatment plant shown in Figure 10 has the A2O technology that is formed by anaerobism groove 10, anoxic groove 11 and aerobic slot 12.
In the pipeline 51 of the back segment of primary sedimentation pond 2, UV meter 25 and under meter 4 are set as the organic concentration meter.Wherein, constitute transmitter by UV meter 25 and under meter 4.
In the pipeline 51 of the outlet of primary sedimentation pond 2, total phosphorus meter 29 is set.
Carbon source injection pump 19 is by the revolution flow rate adjustable of control change device.
Among Figure 10, control device 103 comprises not enough organism amount calculating part 105, and in this deficiency organism amount calculating part 105, not enough organism amount is for example calculated by the calculating formula as (7) formula.
CA={a (Pin (t)-Psv)-Cin (t) } * Qin (t) (CA 〉=0) (7) formula
CA＝0 (CA＜0)
CA: not enough organism amount (g/h), Pin (t): inflow phosphorus concentration (mg/L), the Psv of the t that measures by total phosphorus meter 29 constantly time the: the target value for the treatment of water phosphorus concentration, Cin (t): inflow organic concentration (mg/L), the Qins (t) of the t that measure by UV meter 25 constantly time the: the inflow flow (m of the t that measures by under meter 4 constantly the time 3/ h), a: constant
The carbon source flow Qcar (t) of t during the moment tries to achieve by Qcar (t)=CA/Qin (t).
Control device 103 comes control pump 19 according to the carbon source flow of being tried to achieve by not enough organism amount calculating part 105.
In the present embodiment, compare, count 25 by using the high UV of online property, but non-time-delay ground is controlled with BOD meter, COD meter and organic acid meter.
Owing to calculate not enough organism amount by flowing into phosphorus concentration and flowing into organic densitometer, therefore can control injection rate with respect to the variation of offered load, can make more stabilization of dephosphorization.
In addition, the method for calculation in the not enough organism amount calculating part 105 can be to store the data in the database, are tried to achieve a of above-mentioned (7) formula by the data that store.
In addition, the calculation method in the not enough organism amount calculating part 105 is not limited to (7) formula, but also the biological respinse model of reference example as activated sludge model calculates.
In addition, the calculating in the not enough organism amount calculating part 105 can serve as that basis is come the predicted flows inbound traffics, flowed into water quality with rainfall information weather information 110 also, and predicting the outcome with this serves as according to calculating not enough organism amount (with reference to Figure 11) again.
In addition, technology is not limited only to A2O technology, so long as have the technology of anaerobism groove, aerobic slot, can use any technology, flows into formula anaerobic-aerobic technology etc. as AO technology (anaerobic-aerobic technology), substep.
The 11st embodiment
Below, by Figure 12 the 11st embodiment of the present invention is described.
Among Figure 12,, omit detailed explanation for the additional prosign of the part identical with the 1st embodiment shown in Figure 1.
Dephosphorize apparatus of sewage treatment plant shown in Figure 12 has the A2O technology that is formed by anaerobism groove 10, anoxic groove 11 and aerobic slot 12.
In the pipeline 51 of the back segment of primary sedimentation pond 2, be provided with UV meter 25 and under meter 25a as the organic concentration meter.Wherein, constitute transmitter by UV meter 25 and under meter 25a.
Carbon source injection pump 19 is adjusted flow by the revolution of control change device.
Be provided with phosphoric acid concentration meter 28 in aerobic slot 12, agglutinant accumulating tank 22 is connected to aerobic slot 12 by agglutinant injection pump 16, pump 16 comes dominant discharge by the variation of the umformer revolution that agglutinant control device 16a causes.
Carbon source injection pump 19 is controlled the revolution of carbon source injection pump by control device 103, makes flow become flow by (2) formula gained.
On the other hand, agglutinant injection pump 16 is according to for example such calculating formula of (8) formula, and 16a comes dominant discharge by the agglutinant control device.
Figure A20061008410000251
(8) formula
Flow rate calculation value (the m of Qpac (t): t agglutinant during the moment 3/ h), K: constant, PO4 (t): aerobic slot phosphoric acid concentration (mg/L), PO4sv: the benchmark value of aerobic slot phosphoric acid (mV)
Sometimes having following situation takes place: when because when flowing into poisonous substance etc. and causing biological activity to descend, and can not dephosphorization even drop into how many organism.By present embodiment, utilize agglutinant by auxiliary as mentioned above, can carry out to all-the-time stable dephosphorization.
In addition, technology is not limited only to A2O technology, so long as have the technology of anaerobism groove, aerobic slot, can use any technology, flows into formula anaerobic-aerobic technology etc. as AO technology (anaerobic-aerobic technology), substep.
The method of calculation of the agglutinant injection rate of agglutinant control device 16a are not limited to (8) formula, so long as the benchmark value of utilizing phosphoric acid concentration and method by the deviation of the measured value of phosphoric acid meter 28 gained can be used any method.
The 12nd embodiment
Below, by Figure 13 the 12nd embodiment of the present invention is described.
As shown in figure 13, dephosphorize apparatus of sewage treatment plant have primary sedimentation pond 2, the anaerobism groove 10 that connects at the downstream side of primary sedimentation pond 2, the anoxic groove 11 that connects at the downstream side of anaerobism groove 10, the aerobic slot 12 that connects at the downstream side of anoxic groove 11 and the secondary sedimentation basins 13 that connects at the downstream side of aerobic slot 12.
In addition, carbon source accumulating tank (organism supplying layer) 21 is connected anaerobism groove 10 by pump 19, between aerobic slot 12 and anoxic groove 11, be connected with the circulating line 53 of recycle pump 14.Between secondary sedimentation basins 13 and anaerobism groove 10, be connected foldback pipeline 54, the foldback pump 15 that the solid substances (mud) in the secondary sedimentation basins 13 is returned to anaerobism groove 10 is installed in the foldback pipeline 54.
In addition, by aerating apparatus 9 oxygen is delivered to aerobic slot 12.
In addition, under meter 54a is set in foldback pipeline 54.Phosphoric acid meter 10a is set in anaerobism groove 10, phosphoric acid meter 12a is set in aerobic slot 12.Total phosphorus meter 29 is set in pipeline 51.
Below, the effect of the embodiment that so constitutes is described.
At first, after sewage flows into primary sedimentation pond 2, flow into anaerobism groove 10.
For the sewage that flows into anaerobism groove 10, measure the inflow flow by under meter 4 and (be Q 0), measure the inflow phosphorus concentration by total phosphorus meter 29 and (be C 0).Under meter 4 and total phosphorus meter 29 constitute transmitter, and these signals under meter 4 and total phosphorus meter 29 are sent to control device 101.
Control device 101 calculates the phosphorus amount that flow into anaerobism groove 10 by the product of these values.
In addition, the phosphoric acid concentration of measuring by phosphoric acid meter (the flowing out the phosphoric acid meter) 10a by anaerobism groove 10 (is C 1) with flow of measuring by under meter 4 and the flow measured by under meter 54a (be Q 2) product of sum, control device 101 calculates by anaerobism groove 10 effusive phosphoric acid amount.
From the difference of these anaerobism groove 10 effusive phosphoric acid amount and the phosphoric acid amount that flows into anaerobism groove 10 is exactly the phosphoric acid amount of discharging from polyP bacteria.
As follows as calculating formula.
Phosphorus output=C 1* (Q 0+ Q 2)-C 0* Q 0
When reducing the situation that causes the phosphorus output decline that removes phosphorus bacteria in the anaerobism groove 10 owing to the organic concentration of inflows such as rainy day, owing to below the threshold value that the phosphoric acid amount of discharging sets in controlled target value configuration part 120, therefore can grasp organic not enough situation.When organism was not enough, control device 101 made pump 19 work, will supply with the organism of groove 21 to 10 supplies of anaerobism groove from organism.By supplying with organism, can prevent that the phosphorus of polyP bacteria in the anaerobism groove 10 from discharging obstruction like this to anaerobism groove 10.
By present embodiment, can prevent to reduce and the phosphorus output of removing phosphorus bacteria in the anaerobism groove 10 that causes reduces the deterioration of the water quality that can prevent to release by the organic concentration of inflows such as rainy day.
The 13rd embodiment
Below, by Figure 14 the 14th embodiment of the present invention is described.
Among Figure 14,, omit detailed explanation for the additional prosign of the part identical with the 12nd embodiment shown in Figure 13.
Among Figure 14,, measure the inflow flow by under meter 4 and (be Q for the sewage that flows into anaerobism groove 10 0), measure the inflow phosphorus concentration by total phosphorus meter 29 and (be C 0).To be sent to control device 101 from the signal of under meter 4 and total phosphorus meter 29.In control device 101, the product by these values calculates the phosphorus amount that flow into anaerobism groove 10.In addition, the phosphoric acid concentration of measuring by phosphoric acid meter (the flowing out the phosphoric acid meter) 10a by anaerobism groove 10 (is C 1) with flow of measuring by under meter 4 and the flow measured by under meter 54a (be Q 2) product of sum, in control device 101, calculate from anaerobism groove 10 effusive phosphoric acid amount.
From the difference of these anaerobism groove 10 effusive phosphoric acid amount and the phosphoric acid amount that flows into anaerobism groove 10 be phosphoric acid amount from the polyP bacteria discharge.
In addition, control device 101 (is C by the measured value with the measured value of the phosphoric acid meter 10a of anaerobism groove 10 and the phosphoric acid meter of aerobic slot 12 (append and flow out the phosphoric acid meter) 12a 3) difference (be M divided by the measured value of the sludge concentration meter 12b that is arranged on aerobic slot 12 1), calculate contained phosphoric acid concentration in the solid substance.This value has shown the phosphorus amount that polyP bacteria is accumulated.
Phosphoric acid concentration contained in foldback sludge concentration that control device 101 is measured by the foldback sludge concentration meter 54b that is arranged on foldback pipeline 54 again (for M2) and the above-mentioned solid substance is long-pending with the flow of being measured by under meter 54a, calculates the phosphoric acid amount in the foldback solid substance.
Then, control device 101 divided by the phosphoric acid amount in the solid substance of institute's foldback, calculates polyP bacteria with respect to the output of accumulating the phosphorus amount by the phosphoric acid amount that will be discharged by polyP bacteria, infers the activity of polyP bacteria.
PolyP bacteria can be represented by the formula with respect to the output of accumulating the phosphorus amount.
PolyP bacteria is with respect to the output of accumulating the phosphorus amount
＝(C 1×(Q 0+Q 2)-C 0×Q 0)÷((C 1-C 3)÷M 1×M 2×Q 2)
When flowing into the minimizing of organic concentration, and when causing the situation that the phosphorus output of removing phosphorus bacteria in the anaerobism groove 10 reduces, below the threshold value that the phosphoric acid amount of discharge sets in controlled target configuration part 120 by rainy day etc.But because the phosphorus load that flows into is low for a long time, and the phosphorus amount of accumulating in the polyP bacteria also has the phosphorus output to reduce when reducing, and discharges the situation of phosphoric acid amount below threshold value and take place.The present invention can prevent that such state from forming, and by calculating the ratio of discharging from the phosphorus of polyP bacteria, grasps the activity of polyP bacteria, can grasp organic not enough Zhuan Condition.When organism was not enough, control device 101 calculated the poor of phosphorus output and its target value, and determines organic addition with the proportional relation of this difference.Then, make pump 19 work be supplied to anaerobism groove 10 from the organism that organism is supplied with groove 21.By such interpolation organism, can prevent that the phosphorus of the polyP bacteria in the anaerobism groove 10 from discharging obstruction.
By present embodiment, the phosphorus output of removing phosphorus bacteria in the anaerobism groove 10 that can prevent to be caused by the minimizing of inflow organic concentrations such as rainy day descends, and can prevent to discharge the deterioration of water quality.
The 14th embodiment
Then, by Figure 15 the 14th embodiment of the present invention is described.
Among Figure 15,, omit detailed explanation for the additional prosign of the part identical with the 12nd embodiment shown in Figure 13.
Among Figure 15, the polyP bacteria that illustrates in the 13rd embodiment with the phosphorus output that illustrates in many days the 12nd embodiment or many days is with respect to the output of accumulating the phosphorus amount, be stored in the observed value memory portion 124, its mean value is sent to controlled target configuration part 120 as threshold value.
Can prevent among Figure 15 that water-quality constituents is subjected to the influence of seasonal variation, can prevent to discharge the deterioration of water quality.
The 15th embodiment
Below, by Figure 16 the 15th embodiment of the present invention is described.The dissolved groove 31 that the ozone injection 31a of portion is installed is set in the 15th embodiment shown in Figure 16 replaces carbon source accumulating tank 21, other structure and the 7th embodiment shown in Figure 7 are roughly the same.
Among Figure 16,, omit detailed explanation for the additional prosign of the part identical with the 7th embodiment shown in Figure 7.
As shown in figure 16, will be connected with primary sedimentation pond 2 by the sludge pipe 58 of suction pump 18 sucking sludge.In addition, will be connected with secondary sedimentation basins 13 by the excess sludge pipeline 55 of residual pump 17 suction excess sludges
This sludge pipe 58 and excess sludge pipeline 55 all by mud accumulating tank 20 and pipe connecting 20a with can dissolve groove 31 and be connected.
Can dissolve groove 31 and have the ozone injection 31a of portion, can dissolve, generate the organism of supplying with usefulness by the mud that will accumulate in inside from the ozone of the ozone injection 31a of portion.Therefore can dissolve groove 31 has as generating organism from mud, supplying with the function that organic organism is supplied with groove to anaerobism groove 10.
In addition, can dissolve in the groove 31 and also the ozone injection 31a of portion can be set, but make the sludge fermentation that to dissolve in the groove 31 generate the organism of supplying with usefulness.
In addition, also can supply with from the mud of primary sedimentation pond 2 or from a certain side in the excess sludge of secondary sedimentation basins 13 to dissolving groove 31.
Pass through present embodiment, owing to use from the mud of primary sedimentation pond 2 or from the excess sludge of secondary sedimentation basins 13, in can dissolving groove 31, carry out and can dissolve, generate the organism of supplying with usefulness, therefore need not buy in addition to supply with and use organism, can help to reduce cost.

Claims (30)

1. dephosphorize apparatus of sewage treatment plant, it is characterized in that, the anaerobism groove that has primary sedimentation pond, connects at the downstream side of primary sedimentation pond, the aerobic slot that connects at the downstream side of anaerobism groove and supply with organic organism feed unit to the anaerobism groove, be provided with the transmitter of measuring the organic concentration in the inflow water that flows into the anaerobism groove, according to the signal that spreads out of from transmitter, by control device control organism feed unit.
2. dephosphorize apparatus of sewage treatment plant as claimed in claim 1, its feature also is, the organism feed unit possess organism supply with groove and between organism is supplied with groove and anaerobism groove, be provided with will supply with the pump of the organism of groove from organism to the supply of anaerobism groove, control device comes control pump according to the signal from transmitter, when organic substrate concentration less than benchmark value time running pump, when organic substrate concentration stops pump during greater than benchmark value.
3. dephosphorize apparatus of sewage treatment plant as claimed in claim 1, its feature also is, the organism feed unit has upstream side and the shunt conduit of downstream side and the switch-valve of installing that connects primary sedimentation pond on shunt conduit, control device comes the trip switch valve according to the signal from transmitter, when organic substrate concentration is opened switch-valve during less than benchmark value, when organic substrate concentration is closed switch-valve during greater than benchmark value.
4. dephosphorize apparatus of sewage treatment plant, it is characterized in that, the anaerobism groove that has primary sedimentation pond, connects at the downstream side of primary sedimentation pond, the aerobic slot that connects at the downstream side of anaerobism groove and supply with organic organism feed unit to the anaerobism groove, be provided with the transmitter of measuring the organic concentration in the inflow water that flows into the anaerobism groove, be provided with the ORP time meter of measuring ORP in the anaerobism groove, according to signal, control the organism feed unit by control device from transmitter and ORP time meter.
5. dephosphorize apparatus of sewage treatment plant as claimed in claim 4, its feature also is, the organism feed unit possess organism supply with groove and between organism is supplied with groove and anaerobism groove, be provided with will supply with the pump of the organism of groove from organism to the supply of anaerobism groove, control device comes control pump according to the signal from transmitter and ORP time meter, when organic substrate concentration less than benchmark value or ORP running pump during greater than any situation of benchmark value, stop pump during other situation.
6. dephosphorize apparatus of sewage treatment plant as claimed in claim 4, its feature also is, the organism feed unit has upstream side and the shunt conduit of downstream side and the switch-valve that is installed in shunt conduit that connects primary sedimentation pond, control device comes the trip switch valve according to the signal from transmitter and ORP time meter, when organic substrate concentration is opened switch-valve during greater than any situation of benchmark value less than benchmark value or ORP, close switch-valve during other situation.
7. dephosphorize apparatus of sewage treatment plant, it is characterized in that, the anaerobism groove that has primary sedimentation pond, connects at the downstream side of primary sedimentation pond, the aerobic slot that connects at the downstream side of anaerobism groove and supply with organic organism feed unit to the anaerobism groove, be provided with organic concentration of measuring in the inflow water that flows into the anaerobism groove and the transmitter that flows into flow, according to signal, by control device control organism feed unit from transmitter.
8. dephosphorize apparatus of sewage treatment plant as claimed in claim 7, its feature also is, the organism feed unit possess organism supply with groove and between organism is supplied with groove and anaerobism groove, be provided with will supply with the pump of the organism of groove from organism to the supply of anaerobism groove, control device is according to from the signal of transmitter, from the deviation between organic concentration and the benchmark value and flow into flow and obtain required pumping capacity and come control pump.
9. dephosphorize apparatus of sewage treatment plant as claimed in claim 7, its feature also is, the organism feed unit has upstream side and the shunt conduit of downstream side and the switch-valve that is installed in shunt conduit that connects primary sedimentation pond, control device is according to from the signal of transmitter, from the deviation between organic concentration and the benchmark value and flow into flow and obtain the bypass flow that needs and come the trip switch valve.
10. dephosphorize apparatus of sewage treatment plant as claimed in claim 1, its feature also is, between primary sedimentation pond and anaerobism groove, be provided with pipeline or tempering tank, in pipeline or tempering tank, be provided with the transmitter of measuring the organic concentration in the inflow water that flows into the anaerobism groove.
11. dephosphorize apparatus of sewage treatment plant as claimed in claim 10, its feature also is, the organism feed unit has upstream side and the shunt conduit of downstream side and the switch-valve that is installed in shunt conduit that connects primary sedimentation pond, control device comes the trip switch valve according to the signal from transmitter, when organic substrate concentration is opened switch-valve during less than benchmark value, when organic substrate concentration is closed switch-valve during greater than benchmark value.
12. dephosphorize apparatus of sewage treatment plant as claimed in claim 11, its feature also are, transmitter is set on pipeline, the link position of the downstream side of shunt conduit is positioned at the leading portion of transmitter.
13. as each described dephosphorize apparatus of sewage treatment plant in the claim 2,5 or 8, its feature also is, the phosphoric acid meter is set in aerobic slot, control device comes control pump according to the signal from the phosphoric acid meter.
14. as each described dephosphorize apparatus of sewage treatment plant in the claim 3,6,9,11 or 12, its feature also is, the phosphoric acid meter is set in aerobic slot, control device comes the trip switch valve according to the signal from the phosphoric acid meter.
15. dephosphorize apparatus of sewage treatment plant, it is characterized in that, has primary sedimentation pond, the anaerobism groove that connects at the downstream side of primary sedimentation pond, the aerobic slot that connects at the downstream side of anaerobism groove and supply with organic organism feed unit to the anaerobism groove, be provided with organic concentration of measuring in the inflow water that flows into the anaerobism groove and the transmitter that flows into flow, control device is according to controlling the organism feed unit from the signal of transmitter, and control device has from the deviation between organic concentration and the benchmark value and flows into the not enough organism calculating part that flow calculates not enough organism amount.
16. dephosphorize apparatus of sewage treatment plant as claimed in claim 15, its feature also is, the organism feed unit possess organism supply with groove and between organism is supplied with groove and anaerobism groove, be provided with will supply with the pump of the organism of groove from organism to the supply of anaerobism groove, lack of foundation that the organism amount is come control pump for control device.
17. dephosphorize apparatus of sewage treatment plant as claimed in claim 15, its feature also is, the organism feed unit has upstream side and the shunt conduit of downstream side and the switch-valve that is installed in shunt conduit that connects primary sedimentation pond, and lack of foundation that the organism amount is come the trip switch valve for control device.
18. dephosphorize apparatus of sewage treatment plant, it is characterized in that, has primary sedimentation pond, the anaerobism groove that connects at the downstream side of primary sedimentation pond, the aerobic slot that connects at the downstream side of anaerobism groove and supply with organic organism feed unit to the anaerobism groove, be provided with the influx of predicting sewage according to information in the past, the inflow prediction section of organic concentration and phosphorus concentration, control the organism feed unit by control device, have in this control device from predicting the outcome of this inflow water prediction section to serve as the not enough organism calculating part that basis is calculated not enough organism amount.
19. dephosphorize apparatus of sewage treatment plant as claimed in claim 18, its feature also is, the organism feed unit possess organism supply with groove and between organism is supplied with groove and anaerobism groove, be provided with will supply with the pump of the organism of groove from organism to the supply of anaerobism groove, lack of foundation that the organism amount is come control pump for control device.
20. dephosphorize apparatus of sewage treatment plant as claimed in claim 18, its feature also is, the organism feed unit has upstream side and the shunt conduit of downstream side and the switch-valve that is installed in shunt conduit that connects primary sedimentation pond, and lack of foundation that the organism amount is come the trip switch valve for control device.
21. as each described dephosphorize apparatus of sewage treatment plant in the claim 1,4,7,15 or 18, its feature is that also the agglutinant injection device that will have the agglutinant injection pump is connected with aerobic slot, control device control agglutinant injection pump.
22. dephosphorize apparatus of sewage treatment plant, it is characterized in that, has primary sedimentation pond, the anaerobism groove that connects at the downstream side of primary sedimentation pond, the aerobic slot that connects at the downstream side of anaerobism groove and supply with organic organism feed unit to the anaerobism groove, be provided with the foldback pump that the solid substance in the secondary sedimentation basins is returned to the anaerobism groove, be provided with inflow phosphorus concentration of measuring in the inflow water that flows into the anaerobism groove and the transmitter that flows into flow, be provided with the outflow phosphorus concentration meter of measurement from the effusive outflow phosphorus concentration of anaerobism groove, be provided with the foldback under meter of mensuration by the foldback flow of foldback pump foldback, according to from transmitter, flow out the signal of phosphorus concentration meter and foldback under meter, control the organism feed unit by control device.
23. dephosphorize apparatus of sewage treatment plant as claimed in claim 22, its feature also is, the organism feed unit possess organism supply with groove and organism supply be provided with between groove and the anaerobism groove will supply with the organism supply pump that the organism of groove is supplied with to the anaerobism groove from organism.
24. dephosphorize apparatus of sewage treatment plant as claimed in claim 23, its feature also is, control device is according to the signal from transmitter, outflow phosphorus concentration meter and foldback under meter, try to achieve the phosphorus amount that flows into by inflow phosphorus concentration that flows into the anaerobism groove and the product that flows into flow, the inflow flow that flows into the anaerobism groove be multiply by from the outflow phosphorus concentration of anaerobism groove with foldback flow sum try to achieve outflow phosphorus amount, try to achieve the phosphorus output by this outflow phosphorus amount and the difference that flows into the phosphorus amount, when the phosphorus output when prescribed value is following, make the work of organism supply pump.
25. as claim 23 or 24 described dephosphorize apparatus of sewage treatment plant, its feature also is, be provided with observed value memory portion with many days the phosphorus output of trying to achieve by control device memory, to be sent to the controlled target configuration part from the mean value of the phosphorus output of observed value memory portion, control device is being that benchmark makes the work of organism supply pump by this controlled target configuration part target value set.
26. dephosphorize apparatus of sewage treatment plant as claimed in claim 23, its feature also is, be provided with the 1st solid concentration meter of measuring the solid concentration in the aerobic slot, be provided with the 2nd solid concentration meter of mensuration by the solid concentration of foldback pump foldback, also being provided with mensuration flows out appending of phosphorus concentration and flows out the phosphorus concentration meter from effusive the appending of anaerobism groove, the control device basis is from transmitter, flow out the signal of phosphorus concentration meter and foldback under meter, also according to flowing out the phosphorus concentration meter from appending, the signal of the 1st solid concentration meter and the 2nd solid concentration meter, will from the effusive outflow phosphorus concentration of anaerobism groove with from aerobic slot effusive append flow out phosphorus concentration difference divided by the solid concentration in the aerobic slot, try to achieve phosphorus concentration contained in the solid substance, by solid concentration by foldback pump foldback, phosphorus concentration that contains in the solid substance and foldback flow, try to achieve phosphorus amount to anaerobism groove foldback, try to achieve the phosphorus amount that flows into by inflow phosphorus concentration that flows into the anaerobism groove and the product that flows into flow, the inflow flow that flows into the anaerobism groove be multiply by from the outflow phosphorus concentration of anaerobism groove with foldback flow sum try to achieve outflow phosphorus amount, try to achieve the phosphorus output by this outflow phosphorus amount and the difference that flows into the phosphorus amount, when phosphorus output during, make the work of organism supply pump divided by situation below prescribed value of the value of the phosphorus amount gained that is returned to the anaerobism groove.
27. as each described dephosphorize apparatus of sewage treatment plant in the claim 2,5,8,16,19 or 23, its feature also is, the sludge pipe of sucking sludge is linked to each other with primary sedimentation pond by suction pump, organism is supplied with groove be connected with this sludge pipe, this organism is supplied with groove and is formed by the dissolved groove with sludge fermentation function.
28. as each described dephosphorize apparatus of sewage treatment plant in the claim 2,5,8,16,19 or 23, its feature also is, the sludge pipe of sucking sludge is linked to each other with primary sedimentation pond by suction pump, organism is supplied with groove be connected with this sludge pipe, this organism is supplied with groove and is formed by the dissolved groove with ozone injection portion.
29. as each described dephosphorize apparatus of sewage treatment plant in the claim 2,5,8,16,19 or 23, its feature also is, the excess sludge pipeline of suction excess sludge is linked to each other with secondary sedimentation basins by residual pump, organism is supplied with groove and this excess sludge pipe connection, and this organism is supplied with groove and is formed by the dissolved groove with sludge fermentation function.
30. as each described dephosphorize apparatus of sewage treatment plant in the claim 2,5,8,16,19 or 23, its feature also is, the excess sludge pipeline of suction excess sludge is linked to each other with secondary sedimentation basins by residual pump, organism is supplied with groove link to each other with this excess sludge pipeline, this organism is supplied with groove and is formed by the dissolved groove with ozone injection portion.
CNB2006100841002A 2005-05-24 2006-05-23 Dephosphorize apparatus of sewage treatment plant Expired - Fee Related CN100443422C (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102482129A (en) * 2010-02-05 2012-05-30 湖西大学校产学协力团 Advanced treatment system of wastewater having plasma discharging vessel
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6031241B2 (en) * 2012-03-16 2016-11-24 千代田化工建設株式会社 Plant wastewater treatment method and treatment system
JP6396238B2 (en) * 2015-03-13 2018-09-26 株式会社東芝 Organic wastewater treatment system, organic wastewater treatment method, and organic wastewater treatment system control program

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58196891A (en) * 1982-05-12 1983-11-16 Hitachi Ltd Controlling method for biological denitrification process
JPS58210897A (en) * 1982-06-02 1983-12-08 Hitachi Plant Eng & Constr Co Ltd Biological dephosphorization method of waste water
JPS5946195A (en) * 1982-09-08 1984-03-15 Hitachi Ltd Controlling method for biological denitrification process
JPS5980399A (en) * 1982-10-27 1984-05-09 Hitachi Ltd Controlling means for biological denitrifying apparatus
JP3511430B2 (en) * 1996-04-01 2004-03-29 株式会社荏原製作所 Organic wastewater treatment method
JPH10323688A (en) * 1997-05-23 1998-12-08 Nkk Corp Method for removing phosphorus in waste water
JP3817850B2 (en) * 1997-08-08 2006-09-06 栗田工業株式会社 Biological phosphorus removal equipment
JPH11290888A (en) * 1998-04-13 1999-10-26 Hitachi Ltd Method for biological water treatment and its control device
JP3679942B2 (en) * 1999-02-26 2005-08-03 株式会社東芝 Treated water quality control device
JP2000254683A (en) * 1999-03-09 2000-09-19 Yaskawa Electric Corp Method for controlling supply of excess sludge to sewage treatment facility and biological reaction vessel
JP2001009498A (en) * 1999-06-28 2001-01-16 Nkk Corp Treatment of waste water and treating device therefor
JP2001087793A (en) * 1999-09-27 2001-04-03 Meidensha Corp Method and apparatus for treating waste water
JP2001314892A (en) * 2000-05-09 2001-11-13 Kawasaki City Method for controlling denitrification apparatus of wastewater
JP2002307094A (en) * 2001-04-13 2002-10-22 Toshiba Corp Sewage treatment system
JP4008694B2 (en) * 2001-11-06 2007-11-14 株式会社東芝 Sewage treatment plant water quality controller
JP4120859B2 (en) * 2001-11-21 2008-07-16 横河電機株式会社 Organic injection device
JP3961835B2 (en) * 2002-01-07 2007-08-22 株式会社東芝 Sewage treatment plant water quality controller
JP2004188268A (en) * 2002-12-09 2004-07-08 Toshiba Corp Water quality monitoring/controlling apparatus and sewage treating system
JP2004275826A (en) * 2003-03-13 2004-10-07 Toshiba Corp Sewage treatment plant water quality monitoring and controlling device
JP2004330152A (en) * 2003-05-12 2004-11-25 Ebara Engineering Service Co Ltd Wastewater treatment method and apparatus therefor
JP4304453B2 (en) * 2003-09-26 2009-07-29 株式会社日立プラントテクノロジー Operation control device for nitrogen removal system
JP4334317B2 (en) * 2003-10-23 2009-09-30 株式会社東芝 Sewage treatment system
JP4573575B2 (en) * 2004-06-11 2010-11-04 株式会社日立製作所 Advanced sewage treatment method and apparatus
JP4377770B2 (en) * 2004-07-30 2009-12-02 住友重機械エンバイロメント株式会社 Sewage treatment method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102482129A (en) * 2010-02-05 2012-05-30 湖西大学校产学协力团 Advanced treatment system of wastewater having plasma discharging vessel
CN102482129B (en) * 2010-02-05 2014-02-26 湖西大学校产学协力团 Advanced treatment system of wastewater having plasma discharging vessel
CN107601765A (en) * 2017-09-30 2018-01-19 中国化学工程第六建设有限公司 The method of bioprocessing industry waste water
CN107827230A (en) * 2018-01-04 2018-03-23 韩淇 For the high nitrogen in low temp area, the constant temperature intelligence control MBR water treatment facilities of phosphorus sewage
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