CN103359875A - Waste water treatment method and waste water treatment system - Google Patents
Waste water treatment method and waste water treatment system Download PDFInfo
- Publication number
- CN103359875A CN103359875A CN2013100407206A CN201310040720A CN103359875A CN 103359875 A CN103359875 A CN 103359875A CN 2013100407206 A CN2013100407206 A CN 2013100407206A CN 201310040720 A CN201310040720 A CN 201310040720A CN 103359875 A CN103359875 A CN 103359875A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- mud
- ozone
- ozone gas
- upgrading
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Treatment Of Sludge (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The present invention provides a waste water treatment method and a waste water treatment system, which raises organic-matter degradation speed of microorganisms and prevents organic maters from being left in treating water. The waste water treatment system comprises an aeration tank (1); a gas dispersion device (1a); an ozone adsorption tank (16), an ejector for mixing the sludge-containing treating water pumped from the aeration tank (1) with a high-concentration ozone gas generated by the ozone adsorption tank (16); an ozone reaction tank (19) for contacting sludge with the high-concentration ozone gas for improvement; a sludge return pump (7) for returning the improved sludge; a measuring device (21) for measuring activity degree of the microorganisms in the aeration tank (1); and a control device (23) for controlling the aeration rate of the gas dispersion device (1a), the ozone gas flow in the ejector (10) and the sludge pumping amounted based on the measuring result of the activity degree of the microorganisms.
Description
Technical field
The present invention relates to process method of wastewater treatment and the Waste Water Treatment of the waste water that contains the Organic material.
Background technology
Generally speaking, as the method for wastewater treatment that contains the Organic material, utilize widely the microbic activity mud method of having used., in activated sludge process, owing to wastewater treatment produces a large amount of mud (comprising microorganism), so after making the sludge settling and dehydration that has increased, bury or burning disposal.At this moment, in order to cut down cost for wastewater treatment, studying at importing of wastewater treatment operation reducing sludge volume physical property or chemical midway and processing.
Therefore, in the past since, as one of reducing sludge volume method of physical property, propose to utilize ozone gas that mud is carried out upgrading (decomposing microorganism) and afterwards, be returned to biologic treatment process and make its method of again decomposing (for example, with reference to patent documentation 1).
In addition, for the reducing sludge volume method of above-mentioned physical property, known concentration of ozone gas is higher, and the upgrading of mud is more effective, and the decomposition efficiency in the biologic treatment process is higher.
For example, according to the inventor's experimental result, changing concentration of ozone gas mud is carried out upgrading, and make in aerator tank in the situation of its dissolving, as shown in Figure 7, concentration of ozone gas is higher, upgrading the biological degradability of mud in aerator tank higher.In addition as can be known, the upgrading mud that biological degradability is high is tailed off by the ratio of the propagation utilization of microorganism in aerator tank, can reduce the sludge creation amount.
In Fig. 7, transverse axis is ozone-depleting amount (mg-O
3Suspended solid in the aerator tank of/g-MLSS:Mixed Liquor Suspended Solids(activated sludge process in the mixed solution)), the longitudinal axis is that oxygen utilizes speed relative value (index of biological degradability).Here, represent that respectively concentration of ozone gas is 134mg/L(white tetragon solid line) situation under, be 60mg/L(dark circles form point line) situation under, be 26mg/L(white continuous circular line) situation under, biological degradability is with respect to the characteristic of ozone-depleting amount.
Fig. 8 is the pie graph of the Waste Water Treatment put down in writing of the above-mentioned patent documentation 1 of expression.
In Fig. 8, Waste Water Treatment in the past comprises: aerator tank 1 flows into for waste water 2; Loose device of air 1a in order to utilize microbiological treatment waste water 2, is blown into air in aerator tank 1; Settling bath 6 stores the processing water 3 that contains mud that flows out from aerator tank 1, and is separated into excess sludge 4 and processes water 5; Mud foldback pump 7, the excess sludge 4 in the interior foldback settling bath 6 of aerator tank 1; Ozonize section 8 processes from the part of the processing water 3 that contains mud of aerator tank 1 extraction; Sludge circulation pump 9 makes the processing water that contains mud 3 circulations in the ozonize section 8; Injector 10 is blown into ozone gas to the processing water 3 that contains mud at ozonize section 8 internal recycle; Ozone gas generator 11 produces the ozone gas that is blown into injector 10; And foldback pump 12, will be by ozonize section 8 ozonize the processing water 3 that contains mud be returned to aerator tank 1.
In addition, in patent documentation 1, as ozone gas generator 11, owing to use the structure of discharge type, the working concentration scope is the ozone gas of 120mg/L～400mg/L.
Patent documentation 1: TOHKEMY 2001-191097 communique
Summary of the invention
Method of wastewater treatment in the past and Waste Water Treatment such as patent documentation 1 the record, because directly inject the ozone gas from ozone generation device, so be difficult to concentration of ozone gas is brought up to more than the 400mg/L, the upgrading of the mud of existence in ozonize section (reducing sludge volume processing) is insufficient, can't alleviate the such problem of organic loading of the microorganism in the aerator tank.
In addition, since will utilize the ozone gas upgrading mud put in the aerator tank, increase with respect to the organic concentration in the waste water, the loose tolerance of the air in the aerator tank is constant, so exist the decomposition of the microorganism in the aerator tank can't be corresponding, the such problem of residual organic matter in processing water.
In addition, the ozone gas that has injected for the upgrading that promotes mud becomes bubble within containing the processing water of mud, be dissolved in processing water by liquid-gas interface, being dissolved into the ozone of processing in the water contacts with Sludge Surface, make mud upgrading (reducing sludge volume processing), but being dissolved in the ozone concn of processing water is about 30% of concentration of ozone gas, surpass 30% lysed ozone, be discharged from from the processing water that contains mud as useless ozone gas, or be broken down into oxygen because of self Decomposition, even so exist to inject the ozone gas of high density, most ozone gas also can be consumed in the dissolving of the processing water that contains mud, the utilising efficiency of ozone in the mud upgrading reduces such problem.
The present invention proposes for the problem that solves as described above, its purpose is, obtain a kind of method of wastewater treatment and Waste Water Treatment, by in the ozone supply side sandwiched ozone condensation means from ozone generation device, can utilize the above high-concentrated ozone gas of 1000mg/L to carry out sludge treatment, reduce the organic loading of the microorganism in the aerator tank, and will be because of high-concentrated ozone gas upgrading upgrading mud when being returned to aerator tank, measure the microbic activity degree in the aerator tank, according to activity degree the air capacity that is blown into aerator tank is changed, thereby improve the organic substance decomposing speed of being brought by microorganism, prevent that organic substance residues is in processing water.
In addition, the object of the invention is to, obtain a kind of method of wastewater treatment and Waste Water Treatment, even in the situation that produces the high-concentrated ozone gas more than the 1000mg/L, can not cause the utilising efficiency of ozone to reduce in processing water because of ozone solution yet, in aerator tank, can obtain the very high upgrading mud of decomposition efficiency, reduce thus the sludge creation amount.
Method of wastewater treatment of the present invention comprises: biological treatment step, utilize the organism in the microorganism Decomposition Wastewater; Aerating step is blown into air in waste water; Ozone gas produces step, produces ozone gas; The ozone enrichment step makes ozone gas be adsorbed in sorbent material, generates high-concentrated ozone gas; The gas-liquid mixed step is blended in the processing water that contains mud that generated in the biological treatment step and the high-concentrated ozone gas that has generated in the ozone enrichment step; Ozone treatment step makes mud in the processing water that contains mud contact with high-concentrated ozone gas and carries out upgrading; The foldback step, will be in ozone treatment step upgrading upgrading mud be returned in the aerator tank; Microorganism active degree measuring process is measured the microorganism active degree in the aerator tank; And the control step, based on the measuring result of microorganism active degree, control in the aerating step aeration rate, the ozone gas amount in the gas-liquid mixed step and contain the extraction amount of the processing water of mud.
In addition, method of wastewater treatment of the present invention comprises: attract step, the high-concentrated ozone gas that has attracted to generate in the ozone enrichment step; And ozone treatment step, the processing water that contains mud is contacted under reduced atmosphere with the high-concentrated ozone gas that attracts and mud is carried out upgrading.
According to the present invention, by intermittently produced the high-concentrated ozone gas more than the 1000mg/L by the ozone condensation means, and be injected in the processing water that contains mud, can effectively be decomposed to form the organism of mud, and can effectively destroy the microbial cell wall in the mud, in addition, by before this state to upgrading upgrading mud carry out a biological disposal upon, can improve the decomposition efficiency of being brought by microorganism, improving the upgrading sludge disintegration is the ratio of water and carbonic acid gas.
In addition, hold the situation of the organic substance decomposing that is brought by biological treatment by measuring microbic activity degree (by the organic substance decomposing amount of microorganisms or the organic concentration in the waste water), according to the organic substance decomposing situation, can control the air aeration amount in the aerating step and be used for the mud extraction amount of ozonize, can promote the organic decomposition that brought by microorganism, prevent from processing the water quality variation of water.
In addition, according to the present invention, even the high-concentrated ozone gas inject more than the 1000mg/L that will be produced by the ozone condensation means is in the situation of the processing water that contains mud, because reduced atmosphere, suppress the high-concentrated ozone gas dissolving in processing water, so can reduce the consumption of the high-concentrated ozone gas that is caused by processing water, improve the efficient of the mud upgrading that is brought by ozone gas.
Description of drawings
Fig. 1 is the pie graph of the Waste Water Treatment of expression embodiments of the present invention 1.
Fig. 2 is the pie graph of the Waste Water Treatment of expression embodiments of the present invention 2.
Fig. 3 is the pie graph of the Waste Water Treatment of expression embodiments of the present invention 3.
Fig. 4 is the pie graph of the Waste Water Treatment of expression embodiments of the present invention 4.
Fig. 5 schematically shows in the reduced atmosphere of embodiments of the present invention 4, utilizes high-concentrated ozone gas, the explanatory view of the process of mud dissolving.
Fig. 6 is the pie graph that represents particularly to inject to the ozone reaction groove of embodiments of the present invention 4 parts of high-concentrated ozone gas.
Fig. 7 be expression expression by different concentration of ozone gas upgradings the explanatory view of experimental result of the biological degradability of mud in biologic treatment process.
Fig. 8 is the pie graph that represents Waste Water Treatment in the past.
The explanation of Reference numeral
1, aerator tank; 1a, loose device of air; 2, waste water; 3, the processing water that contains mud; 4, excess sludge; 5, process water; 6, settling bath; 7, mud foldback pump; 8, ozonize section; 9, sludge circulation pump; 10, injector; 11, ozone gas generator; 12, foldback pump; 13, mud is extracted pipe arrangement out; 14, mud extractor pump; 15, high-concentrated ozone pipe arrangement; 16, ozone adsorption tank; 17, ozone supply pipe arrangement; 18, gas-liquid mixed pipe arrangement; 19,19A, ozone reaction groove; 20, mud foldback pipe arrangement; 21, time meter; 22, signal wire; 23, control device; 24, aeration pump; 25,25A, upgrading mud; 26, useless ozone gas; 27, upgrading mud conveyance pump; 28, upgrading mud conveyance pipe arrangement; 29, alkaline purification groove; 30, alkaline liquid; 31, alkaline sludge conveyance pump; 32, alkaline sludge pipe arrangement; 33, phosphorus separator tank; 34, phosphorus is removed sludge pump; 35, phosphorus is removed the mud pipe arrangement; 36, anaerobic air tank; 37, phosphorus agglutinant; 38, phosphorus agglutinator; 39, phosphorus is removed mud; 40, parting liquid conveyance pump; 41, parting liquid conveyance pipe arrangement; 42, upgrading sewage sludge storage groove; 43, atomiser nozzle; 44, foam mud pipe arrangement; 45, useless ozone pipe arrangement; 46, useless cycle of ozone pipe arrangement; 47, useless cycle of ozone pump; 48, ozone diffuser; 49, foam mud; 50, parting liquid; 70, gas attractor; 71, drawdown pump; 72, ozone gas bubble; 73, ozone water; 74, mud; 75, diffuser vane material; 76, pressure survey pipe arrangement; 77, pressure warning unit.
Embodiment
Fig. 1 is the pie graph of the Waste Water Treatment of expression embodiments of the present invention 1.
In Fig. 1, Waste Water Treatment comprises: aerator tank 1 and loose device of air 1a form waste water 2 in the processing water 3 that contains mud; Mud foldback pump 7 is to aerator tank 1 foldback upgrading mud 25; Injector 10; The ozone gas generator 11 of discharge type; Mud is extracted pipe arrangement 13 and mud extractor pump 14 out, extracts the processing water 3 that contains mud out from aerator tank 1; Ozone adsorption tank 16 is provided with high-concentrated ozone pipe arrangement 15 and ozone supply pipe arrangement 17; Gas-liquid mixed pipe arrangement 18 via injector 10, is connected in mud and extracts pipe arrangement 13 and high-concentrated ozone pipe arrangement 15 out; Ozone reaction groove 19 is provided with gas-liquid mixed pipe arrangement 18 and mud foldback pipe arrangement 20; Time meter 21 is located in the aerator tank 1; Control device 23 has for the signal wire 22 of controlling each one according to the measuring result of time meter 21; And aeration pump 24, carry air to loose device of air 1a.
In addition, in Fig. 1, for fear of complicated and omit diagram, but the Waste Water Treatment of embodiments of the present invention 1 is identical with above-mentioned (with reference to Fig. 8), be provided with settling bath and mud foldback pump, this settling bath stores the processing water 3 that contains mud that flows out from aerator tank 1, and is separated into excess sludge and processes water; The excess sludge of this mud foldback pump in the aerator tank 1 interior foldback settling bath.
In the aerator tank 1 of carrying out a biological disposal upon, be provided with loose device of air 1a, flow into waste water 2, flow out the processing water 3 that contains mud.In addition, be provided with the mud of extracting the processing water 3 that contains mud out and extract pipe arrangement 13 out in aerator tank 1, this mud is extracted pipe arrangement 13 out and is linked to each other with injector 10 via mud extractor pump 14.
The time meter 21 that is arranged in the aerator tank 1 is measured the sludge activity degree, by signal wire 22, to control device 23 input measurement signals.In addition, ozone adsorption tank 16 is inputted the weight of the ozone that adsorbs to control device 23.
The processing sequence of embodiments of the present invention shown in Figure 11 then, is described.
At first, the ozone gas that is generated by ozone gas generator 11 passes through ozone supply pipe arrangement 17, is filled in the sorbent materials such as silica gel (not shown) absorption of ozone adsorption tank 16.
Then, in the moment more than the weight of the ozone that is adsorbed in sorbent material becomes necessarily, control device 23 stops from ozone gas generator 11 to ozone adsorption tank 16 ozone supplies, by heating and attraction, the ozone of the inside that is adsorbed in ozone adsorption tank 16 is broken away from.Thus, though be intermittent, above high-concentrated ozone gas 15 discharges from ozone adsorption tank 16 to the high-concentrated ozone pipe arrangement of 1000mg/L.
At this moment, constantly corresponding with the discharge of discharging high-concentrated ozone gas to high-concentrated ozone pipe arrangement 15, drive mud extractor pump 14, extract the processing water 3 that contains mud out from aerator tank 1.Flowed into to injector 10 with high-concentrated ozone gas by the processing water 3 that contains mud of extracting out from aerator tank 1.
Then, after high-concentrated ozone gas is mixed in injector 10 with the processing water 3 that contains mud, by gas-liquid mixed pipe arrangement 18, flow into ozone reaction groove 19.
Its result, the upgrading mud 25 that in ozone reaction groove 19, has stored by high-concentrated ozone gas upgrading.In addition, be decomposed into oxygen by the useless ozone gas 26 of discharging from ozone reaction groove 19 by ozonolysis equipment (not shown).
Afterwards, the ozone that is adsorbed in ozone adsorption tank 16 breaks away from, reduce to moment below the 100mg/L in the concentration of ozone gas of discharging from ozone adsorption tank 16, control device 23 stops to discharge ozone gas and driving mud extractor pump 14 from ozone adsorption tank 16, stops ozone gas and the mixing that contains the processing water of mud.
On the other hand, the upgrading mud 25 that lodges in ozone reaction groove 19 utilizes mud foldback pump 7, is returned to aerator tank 1 by mud foldback pipe arrangement 20.Below, because upgrading mud 25 processed expeditiously by high-concentrated ozone gas, so also play a role as the culture tank of microorganism at aerator tank 1() in, be decomposed into carbonic acid gas and water by microorganism efficient highland.
At this moment, because when upgrading mud 25 is returned to aerator tank 1, organic concentration in the aerator tank 1 increases, organic substance decomposing amount by microorganisms increases, so time meter 21 detects the increase of the organism amount in the aerator tanks 1 and by the increase of the organic substance decomposing amount of microorganisms, by signal wire 22 to control device 23 feed measurement signal.In addition, as time meter 21, can use TOC(Total Organic C arbon) meter, COD(Chemical Oxygen Demand) meter, dissolved oxygen concentration meter, oxidation-reduction potentiometer etc., or be provided with the parts of a plurality of above-mentioned meters.
Like this, by carrying out in the aerator tank 1 and the corresponding ozonize of organic loading microorganism, even the organic decomposition by microorganisms also can be fully carried out in the organic concentration of aerator tank 1 change, can prevent the variation of the water quality treatment that causes because of organic substance residues.
In addition, because be deposited to settling bath 6(with reference to Fig. 8) in the amount of excess sludge 4 also reduce significantly, so discard easily or burning etc., even and in the situation that is returned to aerator tank 1, also can process again easily.
More specifically, at the organic concentration of measuring aerator tank 1 with time meter 21, for example, in the few situation of the organic loading that utilizes TOC meter or COD meter to be judged as to flow in the water, or utilize the dissolved oxygen concentration meter, oxidation-reduction potentiometer is judged as in the high situation of the dissolved oxygen that flows in the water, make mud extractor pump 14 and 16 actions of ozone adsorption tank, the processing water 3 that contains mud is contacted with high-concentrated ozone gas, mud in the processing water 3 that contains mud is carried out upgrading and generates upgrading mud 25, and this upgrading mud 25 is returned to aerator tank 1, thereby the organic loading in the aerator tank 1 is maintained appropriate value with respect to microorganism, can prevent from processing the organic substance residues in the water.
As mentioned above, embodiments of the present invention 1(Fig. 1) method of wastewater treatment comprises: biological treatment step, utilize the organism in the microorganism Decomposition Wastewater 2; Aerating step is blown into air in the processing water 3 that contains mud that comprises waste water 2; Ozone gas produces step, produces ozone gas; The ozone enrichment step makes ozone gas be adsorbed in sorbent material, generates high-concentrated ozone gas; The gas-liquid mixed step, the high-concentrated ozone gas that is blended in the processing water 3 that contains mud that has generated in the biological treatment step and in the ozone enrichment step, has generated; Ozone treatment step makes mud in the processing water that contains mud contact with high-concentrated ozone gas and carries out upgrading; The foldback step, will be in ozone treatment step upgrading upgrading mud 25 be returned in the aerator tank 1; Microorganism active degree measuring process is measured the microorganism active degree in the aerator tank 1; And the control step, based on the measuring result of microorganism active degree, control in the aerating step aeration rate, the ozone gas amount in the gas-liquid mixed step and contain the extraction amount of the processing water of mud.
In addition, embodiments of the present invention 1(Fig. 1) Waste Water Treatment comprises: the aerator tank 1(parts of carrying out a biological disposal upon), utilize the organism in the microorganism Decomposition Wastewater 2; Aeration pump 24 and loose device of air 1a(aeration parts), be blown into air to aerator tank 1; Ozone gas generator 11 produces ozone gas; Ozone adsorption tank 16(ozone condensation means), makes the ozone gas that is produced by ozone gas generator 11 be adsorbed in sorbent material, generate high-concentrated ozone gas; Injector 10(gas-liquid mixed parts), the high-concentrated ozone gas that mixes the processing water 3 that contains mud extracted out from aerator tank 1 and ozone adsorption tank 16, generated; Ozone reaction groove 19(ozonize parts), mud in the processing water 3 that contains mud are contacted with high-concentrated ozone gas and carry out upgrading; Mud foldback pump 7 and mud foldback pipe arrangement 20(foldback parts), to aerator tank 1 foldback in ozone reaction groove 19 upgrading upgrading mud 25; Time meter 21(microorganism active degree measurement component), the microorganism active degree in the measurement aerator tank 1; And control device 23(function unit), based on the measuring result of microorganism active degree, loose device of air 1a(aeration parts of control) aeration rate, injector 10(gas-liquid mixed parts) in ozone gas amount and contain the extraction amount of the processing water 3 of mud.
In the above-described configuration, by making the ozone that is adsorbed in sorbent material break away from (ozone gas enrichment step) from ozone adsorption tank 16, can intermittently produce the above high-concentrated ozone gas of 1000mg/L, by the high-concentrated ozone gas inject more than the 1000mg/L being contained the processing water 3(ozone treatment step of mud), the organism that forms mud is decomposed expeditiously, and the microbial cell wall in the mud is destroyed.
By at above-mentioned state forward direction aerator tank 1 foldback upgrading mud and carry out a biological disposal upon (biological treatment step), improved by the decomposition efficiency of microorganisms, can improve the ratio that upgrading mud 25 is decomposed into water and carbonic acid gas.
In addition, by measuring by the organic substance decomposing amount of microorganisms or the organic concentration in the waste water, measure microbic activity degree (microorganism active degree measuring process), can hold the situation of the organic substance decomposing that is produced by biological treatment, by controlling the air aeration amount among the loose device of air 1a according to the organic substance decomposing situation and being used for the mud extraction amount (control step) of ozonize, can promote the organic decomposition by microorganisms, and prevent from processing the water quality variation of water.
In addition, at above-mentioned embodiment 1(Fig. 1) in, consider to remove phosphorus organism in addition, to directly be returned to from the upgrading mud 25 of ozone reaction groove 19 in the aerator tank 1, but in order further to remove phosphorus from upgrading mud 25, as shown in Figure 2, also can be at the back segment of ozone reaction groove 19, sandwiched alkaline purification groove 29 and phosphorus separator tank 33, and at the upstream side of aerator tank 1 anaerobic air tank 36(anaerobic groove is set).
Generally speaking, although microorganism is taken in a certain amount of phosphorus, because can't decompose, so need to remove in addition phosphorus.In addition, known in anaerobic air tank 36, microorganism is discharged phosphorus, and by discharging phosphorus, has also improved the organic substance decomposing ability of waste water 2.
Fig. 2 is the pie graph of the Waste Water Treatment of expression embodiments of the present invention 2, and the parts for identical with above-mentioned (with reference to Fig. 1) mark Reference numeral same as described above.In this case, the upgrading mud 25 that has only added from ozonize is removed the formation this point of phosphorus from above-mentioned different.
In Fig. 2, Waste Water Treatment comprises: the aerator tank 1 with loose device of air 1a; Aeration pump 24; Ozone reaction groove 19; Upgrading mud conveyance pump 27; Upgrading mud conveyance pipe arrangement 28; Alkaline purification groove 29; Alkaline sludge conveyance pump 31; Alkaline sludge pipe arrangement 32; Phosphorus separator tank 33; Phosphorus is removed sludge pump 34; Phosphorus is removed mud pipe arrangement 35; And anaerobic air tank 36.
In addition, in Fig. 2, for fear of complicated and omit diagram, but the Waste Water Treatment of embodiments of the present invention 2 is identical with above-mentioned (Fig. 8), be provided with settling bath and mud foldback pump, this settling bath stores the processing water 3 that contains mud that flows out from aerator tank 1, and is separated into excess sludge and processes water; The excess sludge of this mud foldback pump in the aerator tank 1 interior foldback settling bath.
In addition, identical with above-mentioned (Fig. 1), comprise control device 23, and at the upstream side of ozone reaction groove 19, be provided with injector 10, ozone gas generator 11, mud extraction pipe arrangement 13, mud extractor pump 14, high-concentrated ozone pipe arrangement 15, ozone adsorption tank 16, ozone supply pipe arrangement 17 and gas-liquid mixed pipe arrangement 18.
In this case, control device 23 is also controlled each pump 27,31,34.
Flowed into the waste water 2 of anaerobic air tank 36 in anaerobic air tank 36, and removed mud 39 from the phosphorus of phosphorus separator tank 33 and mixes, the phosphorus of the microorganism during having carried out waste water 2 is discharged after the processing, inflow aerator tank 1.
Then, on one side with reference to Fig. 1, the processing sequence of embodiments of the present invention shown in Figure 22 is described on one side.
As mentioned above, at first, the ozonize of passing through high-concentrated ozone gas in the ozone adsorption tank 16 and by upgrading upgrading mud 25 accumulate in the ozone reaction groove 19.
Then, the upgrading mud 25 in the ozone reaction groove 19 is extracted out by upgrading mud conveyance pump 27, is put in the alkaline purification groove 29.
Then, in alkaline purification groove 29, by injecting alkaline liquid 30, carry out the solubilization of upgrading mud 25, the phosphorus dissolved of the microorganism inside that is ingested.
Then, the phosphorus dissolved alkaline sludge via alkaline sludge conveyance pump 31, be put to the phosphorus separator tank 33 from alkaline purification groove 29.
Then, phosphorus agglutinant 37 is being added to phosphorus separator tank 33 when interior, with dissolved phosphorus reaction and generate phosphorus agglutinator 38.Phosphorus agglutinator 38 separates and is recovered from alkaline sludge.
On the other hand, in phosphorus separator tank 33, generate from alkaline sludge and removed the phosphorus removal mud 39 behind the phosphorus, phosphorus is removed mud 39 and is removed mud pipe arrangement 35 and phosphorus removal sludge pump 34 via phosphorus, is put to the anaerobic air tank 36 from phosphorus separator tank 33.
Thus, can in the processing water 3 that contains mud of having extracted out since aerator tank 1, remove phosphorus after, carry out a biological disposal upon.
Drop into phosphorus by the anaerobic air tank 36 to the upstream side of being located at aerator tank 1 and remove mud 39, can in anaerobic air tank 36, make organic substance decomposing, and the phosphorus that Institute of Micro-biology is contained is discharged in the processing water.
Then, flow into aerator tank 1 by making the processing water of in anaerobic air tank 36, processing, can make the microorganism panning of processing after the contained phosphorus of water is discharged by phosphorus, can reduce the phosphorus concentration in the processing water 3 that contains mud.
In addition, the formation by combining with above-mentioned (Fig. 1) can also further improve the phosphorus removal capacity biologically in the aerator tank 1.
Particularly, phosphorus in anaerobic air tank 36 is discharged vigorous time band, by improving the aeration rate of aerator tank 1, increase microorganism to the intake of phosphorus, can improve the phosphorus put into again in the anaerobic air tank 36 and remove mud 39(upgrading mud 25) organic substance decomposing efficient, and can improve the phosphorus intake of the microorganism in the aerator tank 1, and reduce the contained phosphorus concentration of processing water after the biological treatment.
As mentioned above, embodiments of the present invention 2(Fig. 2) method of wastewater treatment also comprises except each step of above-mentioned embodiment 1: the step of being sick of, and before biological treatment step, the microorganism discharge phosphorus from waste water 2 in; Alkali treatment, to upgrading in ozone treatment step upgrading mud 25 add alkaline liquid 30; Phosphorus aggegation step is added phosphorus agglutinant 37 to the upgrading mud that has added alkali in alkali treatment; And the phosphorus recycling step, be recovered in aggegation in the phosphorus aggegation step phosphorus agglutinator 38.
The step of being sick of and aerating step consist of the biological treatment step of the property of being sick of, and in the foldback step, will remove the phosphorus removal mud 39 behind the phosphorus and be returned in the waste water 2 in phosphorus aggegation step.
In addition, embodiments of the present invention 2(Fig. 2) Waste Water Treatment also comprises except the formation of above-mentioned (Fig. 1): anaerobic air tank 36, be located at the upstream side of aerator tank 1; Alkaline purification groove 29(alkaline purification parts), at ozone reaction groove 19(ozonize parts) in upgrading upgrading mud 25 add alkaline liquid 30; Phosphorus separator tank 33(phosphorus aggegation parts), add phosphorus agglutinant 37 to the upgrading mud that in alkaline purification groove 29, has added alkali; And the phosphorus recovery part, be recovered in aggegation in the phosphorus separator tank 33 phosphorus agglutinator 38.
Like this, the upgrading mud 25 by after ozonize reclaims phosphorus, except the effect of above-mentioned embodiment 1, can also remain constantly with being accumulated in phosphorus concentration in the aerator tank 1, prevents that phosphorus is to processing water-soluble analysing.
In addition, at above-mentioned embodiment 1,2(Fig. 1, Fig. 2) in, to all discharge from the useless ozone gas 26 that ozone reaction groove 19 generates, utilize outside ozonolysis equipment (not shown) to be decomposed into oxygen, but in order to improve the utilising efficiency of the ozone gas that ozonize uses, also can as shown in Figure 3, help organic decomposition by making the useless ozone gas 26 of a part at ozone reaction groove 19A internal recycle.
Fig. 3 is the pie graph of the Waste Water Treatment of expression embodiments of the present invention 3, is illustrated in the situation of having appended useless cycle of ozone parts in the formation of above-mentioned (Fig. 1).
In Fig. 3, for the parts identical with above-mentioned (with reference to Fig. 1), mark Reference numeral same as described above (or behind Reference numeral, add " A ").
In Fig. 3, Waste Water Treatment comprises: aerator tank 1; Loose device of air 1a; Mud foldback pump 7; Injector 10; Ozone gas generator 11; Mud is extracted pipe arrangement 13 out; Mud extractor pump 14; High-concentrated ozone pipe arrangement 15; Ozone adsorption tank 16; Ozone supply pipe arrangement 17; Gas-liquid mixed pipe arrangement 18; Ozone reaction groove 19A; Mud foldback pipe arrangement 20; And time meter 21.
In addition, the circulation member of the useless ozone gas 26 of the conduct of the Waste Water Treatment of Fig. 3 comprises: parting liquid conveyance pump 40; Parting liquid conveyance pipe arrangement 41 via parting liquid conveyance pump 40, is connected in ozone reaction groove 19A; Upgrading sewage sludge storage groove 42 is for the front end importing of parting liquid conveyance pipe arrangement 41; Atomiser nozzle 43 is located at the front end opening of parting liquid conveyance pipe arrangement 41; Foam mud pipe arrangement 44 is communicated with ozone reaction groove 19A and upgrading sewage sludge storage groove 42; Useless ozone pipe arrangement 45; Useless cycle of ozone pipe arrangement 46; Useless cycle of ozone pump 47; And ozone diffuser 48.
In addition, in Fig. 3, for fear of complicated and omit diagram, but the Waste Water Treatment of embodiments of the present invention 3 is same as described above, comprise settling bath, mud foldback pump, control device 23 and aeration pump 24, this settling bath stores the processing water 3 that contains mud that flows out from aerator tank 1, and is separated into excess sludge and processes water; The excess sludge of this mud foldback pump in the aerator tank 1 interior foldback settling bath.
In this case, control device 23 is also controlled each pump 40,47.
Ozone reaction groove 19A is via parting liquid conveyance pump 40 and parting liquid conveyance pipe arrangement 41, link to each other with upgrading sewage sludge storage groove 42, front end opening be connected in the parting liquid conveyance pipe arrangement 41 of upgrading sewage sludge storage groove 42 from ozone reaction groove 19A is provided with atomiser nozzle 43.
In addition, the top of ozone reaction groove 19A links to each other with the top of upgrading sewage sludge storage groove 42 via foam mud pipe arrangement 44.On the top of upgrading sewage sludge storage groove 42, be connected with useless ozone pipe arrangement 45 and the useless cycle of ozone pipe arrangement 46 of discharging useless ozone gas 26.Useless cycle of ozone pipe arrangement 46 links to each other with the ozone diffuser 48 of the inside that is arranged at ozone reaction groove 19A via useless cycle of ozone pump 47.
In addition, upgrading sewage sludge storage groove 42 links to each other with aerator tank 1 via mud foldback pump 7 and mud foldback pipe arrangement 20.
The processing sequence of embodiments of the present invention shown in Figure 33 then, is described.
As shown in Figure 3, when the upgrading mud in the ozone reaction groove 19A that has been generated by ozonize was blown into useless ozone gas 26 from ozone diffuser 48, upgrading mud bubbled, and produces foam mud 49.
At this moment, because become film like at the surfaction mud of foam mud 49, so the contact area of the upgrading mud of the contained useless ozone gas of foam and film is large.Therefore, promote organism that upgrading mud is contained and the reaction of useless ozone gas, organism is by ozone decomposed expeditiously, and useless ozone gas is decomposed into oxygen expeditiously.
By ozone decomposed expeditiously foam mud 49 utilize the pressure of the useless ozone gas 26 that has injected from ozone diffuser 48 and by the top of conveyance to ozone reaction groove 19A, be transported in the upgrading sewage sludge storage groove 42 by foam mud pipe arrangement 44.
Like this, the processing water 3 that certainly contains mud utilize the high-concentrated ozone gas processing upgrading mud, 19A becomes foam mud 49 from the ozone reaction groove, by and conveyance to upgrading sewage sludge storage groove 42.
Its result, in the bottom of ozone reaction groove 19A, mud is removed, the residual lower molten parting liquid 50 of depositing ozone gas that contains high density.
Then, parting liquid conveyance pump 40 is extracted the parting liquid 50 in the ozone reaction groove 19A out, from the atomiser nozzle 43 of the front end opening of parting liquid conveyance pipe arrangement 41 to upgrading sewage sludge storage groove 42 internal sprayings, thereby parting liquid 50 is separated into molten ozone gas and the water deposited.
Be discharged to the outside at the interior separated useless ozone gas 26 of upgrading sewage sludge storage groove 42 via useless ozone pipe arrangement 45, and a part is drawn out of via useless cycle of ozone pipe arrangement 46 and useless cycle of ozone pump 47, and is blown into upgrading mud in the ozone reaction groove 19A from ozone diffuser 48.
Thus, the high-concentrated ozone gas that produces from ozone adsorption tank 16 can comprise useless ozone gas 26 ground and be used in expeditiously sludge disintegration.
On the other hand,, mix with the foam mud 49 that is imported into by foam mud pipe arrangement 44 at the interior separated water of upgrading sewage sludge storage groove 42 via atomiser nozzle 43, accumulate as upgrading mud 25A in the bottom of upgrading sewage sludge storage groove 42.
Below, upgrading mud 25A is returned to aerator tank 1 via mud foldback pipe arrangement 20 and mud foldback pump 7.
As mentioned above, embodiments of the present invention 3(Fig. 3) method of wastewater treatment is except each step of above-mentioned embodiment 1, also comprise: the foaming step, by to upgrading in ozone treatment step upgrading mud be blown into gas it bubbled, upgrading mud is separated into foam mud 49 and contains the molten parting liquid 50 of depositing ozone gas; The gas delivery step by to parting liquid 50 sprayings, is separated into useless ozone gas 26 and water with parting liquid 50; And the gas circulation step, the gas that the useless ozone gas 26 that will separate in the gas delivery step is blown into as upgrading mud in ozone reaction groove 19A and utilizing.
In the foldback step, the water that will separate in the gas delivery step as upgrading mud 25A, is returned to aerator tank 1 with foam mud 49.
In addition, embodiments of the present invention 3(Fig. 3) Waste Water Treatment is except the formation of above-mentioned (Fig. 1), also comprise: ozone diffuser 48(foaming parts), by be blown into gas to the upgrading mud in ozone reaction groove 19A (foam mud 49, parting liquid 50) it is bubbled, upgrading mud is separated into foam mud 49 and the parting liquid 50 that contains ozone gas; Atomiser nozzle 43(gas delivery parts), by to parting liquid 50 sprayings, parting liquid 50 is separated into useless ozone gas 26 and water; And the useless cycle of ozone parts of useless cycle of ozone pipe arrangement 46 and useless cycle of ozone pump 47(), the gas that the useless ozone gas 26 that will have been separated by atomiser nozzle 43 is blown into as the upgrading mud in ozone reaction groove 19A and utilizing.
Like this, by using useless ozone gas 26 that the upgrading mud in the ozone reaction groove 19A is bubbled, can make the upgrading mud of film like be attached to foam and become foam mud 49, the contact area of the useless ozone gas 26 that the upgrading mud that becomes film like and foam are contained is compared with the situation in being present in liquid significantly and is increased, so high-level efficiency reaction that can be by useless ozone gas 26 and foam mud 49 and decomposition is promptly carried out.
In addition, the parting liquid 50(that has removed foam and mud processes water) contained ozone gas is because from the spraying of atomiser nozzle 43, be separated into water and useless ozone gas 26, separated useless ozone gas 26 is via useless cycle of ozone pipe arrangement 46 and useless cycle of ozone pump 47, be imported into the ozone diffuser 48 in the ozone reaction groove 19A, by being used in the generation of foam mud 49, except the effect of above-mentioned embodiment 1, the high-concentrated ozone gas that can will be injected into the processing water 3 that contains mud in the process that ozonize is used is used in sludge treatment expeditiously.
In addition, for above-mentioned embodiment 3(Fig. 3), represented to be applied to above-mentioned embodiment 1(Fig. 1) the example of formation, but also can be applied to above-mentioned embodiment 2(Fig. 2) formation.
Under this state, the upgrading mud 25A in the upgrading sewage sludge storage groove 42 is imported into the alkaline purification groove 29 in Fig. 2, except the high-level efficiency processingization that is produced by high-concentrated ozone gas (with useless ozone gas 26), can also remove phosphorus.
In addition, for above-mentioned embodiment 1～3(Fig. 1～Fig. 3), do not mention the parts that attract high-concentrated ozone gas, but also can be as shown in Figure 4, and sandwiched attracts the gas attractor 70 of high-concentrated ozone gas between ozone adsorption tank 16 and ozone reaction groove 19.
Fig. 4 is the pie graph of Waste Water Treatment of expression embodiments of the present invention 4, for the parts identical with above-mentioned (with reference to Fig. 1), marks Reference numeral same as described above and omits detailed description.
Waste Water Treatment shown in Figure 4 replaces the injector 10 of above-mentioned (Fig. 1), and possesses for the gas attractor 70 that attracts high-concentrated ozone gas from ozone adsorption tank 16.
In Fig. 4, ozone adsorption tank 16 links to each other with ozone reaction groove 19 via high-concentrated ozone pipe arrangement 15 and gas attractor 70.
In addition, extract the mud of the processing water 3 that contains mud from aerator tank 1 out and extract pipe arrangement 13 out via mud extractor pump 14, be connected in ozone reaction groove 19.
In addition, at ozone reaction groove 19, by useless ozone pipe arrangement 45, be provided with for the drawdown pump 71 that ozone reaction groove 19 is reduced pressure.
The processing sequence of working of an invention mode 4 shown in Figure 4 then, is described.
At first, under the control of control device 23, utilize gas attractor 70 to pass through high-concentrated ozone pipe arrangement 15 from the high-concentrated ozone gas that ozone adsorption tank 16 is drawn out of, be injected into ozone reaction groove 19.
At this moment, the injection of control device 23 and high-concentrated ozone gas inject ozone reaction groove 19 correspondingly drives mud extractor pump 14 constantly, extracts the processing water 3 that contains mud out from aerator tank 1.Below, the processing water 3 that contains mud that is drawn out of from aerator tank 1 flows into ozone reaction groove 19 with high-concentrated ozone gas.
In ozone reaction groove 19, with the injection of high-concentrated ozone gas correspondingly constantly, drawdown pump 71 is according to moving by the control signal of coming self-control device 23 of signal wire 22, the inside of ozone reaction groove 19 is depressurized.
In addition, the processing water 3 that contains mud that flow into ozone reaction groove 19 contacts under reduced atmosphere with high-concentrated ozone gas, thus, contains the contained mud of the processing water 3 of mud by high-concentrated ozone gas upgrading, becomes upgrading mud 25.
In addition, discharge useless ozone gas 26 from ozone reaction groove 19 via drawdown pump 71.
In addition, in the same manner as described above, by lodging in the upgrading mud 25 of ozone reaction groove 19 with contacting of ozone gas, utilize mud foldback pump 7 to be returned to aerator tank 1 by mud foldback pipe arrangement 20.Because upgrading mud 25 is processed expeditiously by high-concentrated ozone gas, so in aerator tank 1, utilize microorganism efficient highland to be broken down into carbonic acid gas and water.
Then, on one side on one side will be in ozone reaction groove 19 with reference to Fig. 5, the processing water 3 that contains mud under reduced atmosphere is compared to illustrate with situation about not reducing pressure by the process of upgrading.
Fig. 5 schematically shows that mud utilizes the high-concentrated ozone gas under the reduced atmosphere and the explanatory view of the process of dissolving, the situation that Fig. 5 (a) expression is not reduced pressure, the situation of Fig. 5 (b) expression decompression.
As shown in Figure 5, in being injected with the ozone reaction groove 19 of high-concentrated ozone gas, generate the ozone gas bubble 72 that contains high-concentrated ozone gas.
Usually, the negative pressure that the decomposer (not shown) of the useless ozone gas 26 of the inside reason of ozone reaction groove 19 produces, pressure is higher than normal atmosphere.
Be higher than under the atmospheric pressure, shown in Fig. 5 (a), because ozone gas bubble 72 contained high-concentrated ozone gases are dissolved in the processing water 3 that contains mud easily, so around ozone gas bubble 72, generate a large amount of ozone water 73.
On the other hand, under reduced atmosphere, shown in Fig. 5 (b), because ozone gas bubble 72 contained high-concentrated ozone gases are difficult to be dissolved in the processing water 3 that contains mud, so around ozone gas bubble 72, only generate a small amount of ozone water 73.
At this moment, in the mud 74 within containing the processing water 3 of mud and the situation that ozone gas bubble 72 directly contacts, because by the high-concentrated ozone gas dissolving, so upgrading is abundant.
On the other hand, because ozone water 73 contained ozone concns are below the 100mg/L, so the upgrading that utilizes 73 pairs of mud 74 of the ozone water high-concentrated ozone gas contained with utilizing ozone gas bubble 72 is compared the upgrading of mud 74, upgrading is insufficient.
As the not high one of the main reasons of the ozone concn of ozone water 73, be that self decomposition rate that is dissolved in the ozone molecule of ozone water 73 is compared greatly with the ozone molecule of ozone gas bubble 72.Therefore, ozone water 73 contained ozone molecules directly do not contact with mud 74, and the ratio that is decomposed into oxygen is large.
That is, as Fig. 5 (a), under mud 74 and ozone water 73 exposed to contact states, upgrading is insufficient.
In addition, as Fig. 5 (a) because in a large amount of high-concentrated ozone gas dissolvings when containing the processing water 3 of mud, the concentration of ozone gas of ozone gas bubble 72 also reduces, so the upgrading effect of 72 pairs of mud 74 of ozone gas bubble also reduces.
With respect to this, as Fig. 5 (b), carry out in the situation of exhaust in the inside that utilizes 71 pairs of ozone reaction grooves 19 of drawdown pump, because ozone gas solubleness reduces, so ozone gas is suppressed to the meltage of the processing water 3 that contains mud.
Thus, the concentration of ozone gas of ozone gas bubble 72 is maintained high density, and the upgrading that is brought by ozone gas of the mud 74 that contacts with ozone gas bubble 72 is promoted.
In addition, owing to the dissolving of ozone to the processing water 3 that contains mud reduces, the utilising efficiency of the ozone gas in the upgrading of mud 74 rises.
In addition, be dissolved in the processing water 3 that contains mud from ozone gas bubble 72 in order to suppress ozone, need to utilize drawdown pump 71, make the internal pressure of ozone reaction groove 19 with absolute manometer, be higher than the vapour pressure (being 2.3kPa) of water and be lower than normal atmosphere (100kPa) in the time of 20 ℃, the best absolute pressure that needs to reduce pressure is " scope of 10kPa～90kPa ".
Then, inject the parts of high-concentrated ozone gas to ozone reaction groove 19 with reference to Fig. 6 explanation.
Fig. 6 is the pie graph that represents particularly to inject to ozone reaction groove 19 parts of high-concentrated ozone gas, represents different separately configuration examples with Fig. 6 (a) with Fig. 6 (b).
In Fig. 6 (a), Fig. 6 (b), via pressure survey pipe arrangement 76, pressure warning unit 77 is installed at ozone reaction groove 19, be connected with control device 23(with reference to Fig. 4 at pressure warning unit 77) signal wire 22.
In Fig. 6 (a), be provided with diffuser vane material 75 in the bottom of ozone reaction groove 19, be connected with high-concentrated ozone pipe arrangement 15 at diffuser vane material 75.
High-concentrated ozone gas, is injected in the ozone reaction groove 19 via high-concentrated ozone pipe arrangement 15 and diffuser vane material 75 from gas attractor 70, is ejected after becoming small ozone gas bubble 72.
In addition, in Fig. 6 (a), use diffuser vane material 75, but may not be defined in this, also can use the arbitrarily instrument (diffuser etc.) that offers micro-holes.
In addition, also can to stirrer, the ultrasonic oscillator that stirs ozone gas is set near the ozone gas inlet of ozone reaction groove 19 injection of ozone gases, thus, can also produce more small ozone gas bubble.
On the other hand, in Fig. 6 (b), in the bottom of ozone reaction groove 19, be provided with the injector 10 as the parts that the processing water 3 that contains mud and high-concentrated ozone gas are converged.
On injector 10, be connected with that mud is extracted pipe arrangement 13 out and via the high-concentrated ozone pipe arrangement 15 of gas attractor 70.
In this case, be injected into the high-concentrated ozone gas of injector 10 by high-concentrated ozone pipe arrangement 15, because the shear-stress that is produced by the processing water 3 that contains mud becomes by behind the ozone gas bubble 72 of microminiaturization, be injected into ozone reaction groove 19.
But, because being depressurized pump 71, the internal pressure of ozone reaction groove 19 is set as below the normal atmosphere, so even tiny bubble, ozone gas is also suppressed to the dissolving of the processing water 3 that contains mud, produces the ozone gas bubble 72 of high density.
In addition, in Fig. 6 (b), use injector 10 to mix ozone gas and the processing water 3 that contains mud, but be not limited to injector 10, also can use threeway pipe arrangement etc.
As mentioned above, embodiments of the present invention 4(Fig. 4) method of wastewater treatment comprises: biological treatment step, utilize the organism in the microorganism Decomposition Wastewater 2; Aerating step is blown into air in waste water 2; Ozone gas produces step, produces ozone gas; The ozone enrichment step makes ozone gas be adsorbed in sorbent material, generates high-concentrated ozone gas; Attract step, the high-concentrated ozone gas that has attracted in the ozone enrichment step, to generate; Ozone treatment step makes the processing water 3 that contains mud contact with the high-concentrated ozone gas that attracts and mud is carried out upgrading; Depressurization steps reduces pressure with the atmosphere that high-concentrated ozone gas contacts to making the processing water 3 that contains mud; The foldback step, will be in ozone treatment step upgrading upgrading mud 25 be returned in the waste water 2; Microorganism active degree measuring process is measured the microorganism active degree in the waste water 2; And the control step, based on the measuring result of microorganism active degree, control in the aerating step aeration rate and contain the extraction amount of the processing water 3 of mud.
In addition, the Waste Water Treatment of embodiments of the present invention 4 comprises: the aerator tank 1(parts of carrying out a biological disposal upon), utilize the organism in the microorganism Decomposition Wastewater 2; Aeration pump 24 and loose device of air 1a(aeration parts), be blown into air to aerator tank 1; Ozone gas generator 11 produces ozone gas; Ozone adsorption tank 16(ozone condensation means), makes the ozone gas that produces from ozone gas generator 11 be adsorbed in sorbent material, generate high-concentrated ozone gas; Gas attractor 70(attracts parts), the high-concentrated ozone gas that has attracted in ozone adsorption tank 16, to generate; Ozone reaction groove 19(ozonize parts), mud 74 in the processing water 3 that contains mud are contacted with the high-concentrated ozone gas that attracts and mud is carried out upgrading; Drawdown pump 71(decompression member), the mud 74 in the processing water 3 that contains mud is reduced pressure with the atmosphere that the high-concentrated ozone gas that attracts contacts; Mud foldback pipe arrangement 20(foldback parts), will ozone reaction because of groove 19 in upgrading upgrading mud 25 be returned to aerator tank 1; Time meter 21(microorganism active degree measurement component), the microorganism active degree in the measurement aerator tank 1; And control device 23(function unit), aeration rate based on the measuring result of microorganism active degree, loose device of air 1a(aeration parts of control) and contain the extraction amount of the processing water 3 of mud.
Like this, contact with mud 74 by under reduced atmosphere, making high-concentrated ozone gas, can improve the ozone utilising efficiency when generating upgrading mud 25, and can utilize high-concentrated ozone gas to generate upgrading mud 25.
Namely, even the high-concentrated ozone gas inject more than the 1000mg/L that will produce from ozone adsorption tank 16 is in the situation of the processing water 3 that contains mud, also because because reduced atmosphere, suppress the high-concentrated ozone gas dissolving in processing water, so because the consumption of processing the high-concentrated ozone gas that water causes reduces, can improve ozone gas to the efficient of mud upgrading.
In addition, because by the high-concentrated ozone gas processing the biological degradability of upgrading mud 25 high, so in aerator tank 1, the decomposition efficiency that is decomposed into carbonic acid gas and water improves, can suppress the increase of the mud 74 in the aerator tank 1, and prevent the variation of the water quality treatment that organic substance residues causes.
In addition, as shown in Figure 6, via pressure survey pipe arrangement 76 pressure warning unit 77 is installed at ozone reaction groove 19, the observed value of pressure warning unit 77 is imported into control device 23, so control device 23 is according to pressure measuring value, free air delivery to drawdown pump 71 is carried out feedback control, thereby the internal pressure of ozone reaction groove 19 can be adjusted in the optimum range.
Claims (10)
1. a method of wastewater treatment is characterized in that,
This method of wastewater treatment comprises:
Biological treatment step utilizes the organism in the microorganism Decomposition Wastewater;
Aerating step is blown into air in above-mentioned waste water;
Ozone gas produces step, produces ozone gas;
The ozone enrichment step makes above-mentioned ozone gas be adsorbed in sorbent material, generates high-concentrated ozone gas;
The gas-liquid mixed step is blended in the processing water that contains mud that generated in the above-mentioned biological treatment step and the high-concentrated ozone gas that has generated in above-mentioned ozone enrichment step;
Ozone treatment step makes mud in the above-mentioned processing water that contains mud contact with above-mentioned high-concentrated ozone gas and carries out upgrading;
The foldback step, will be in above-mentioned ozone treatment step upgrading upgrading mud be returned in the above-mentioned waste water;
Microorganism active degree measuring process is measured the microorganism active degree in the above-mentioned waste water; And
The control step based on the measuring result of mentioned microorganism activity degree, is controlled aeration rate, the ozone gas amount in the above-mentioned gas-liquid mixed step and the above-mentioned extraction amount that contains the processing water of mud in the above-mentioned aerating step.
2. a method of wastewater treatment is characterized in that,
This method of wastewater treatment comprises:
Biological treatment step utilizes the organism in the microorganism Decomposition Wastewater;
Aerating step is blown into air in above-mentioned waste water;
Ozone gas produces step, produces ozone gas;
The ozone enrichment step makes above-mentioned ozone gas be adsorbed in sorbent material, generates high-concentrated ozone gas;
Attract step, the above-mentioned high-concentrated ozone gas that has attracted in above-mentioned ozone enrichment step, to generate;
Ozone treatment step makes the above-mentioned processing water that contains mud contact with the above-mentioned high-concentrated ozone gas that attracts and mud is carried out upgrading;
Depressurization steps reduces pressure with the atmosphere that above-mentioned high-concentrated ozone gas contacts to making the above-mentioned processing water that contains mud;
The foldback step, will be in above-mentioned ozone treatment step upgrading upgrading mud be returned in the above-mentioned waste water;
Microorganism active degree measuring process is measured the microorganism active degree in the above-mentioned waste water; And
The control step based on the measuring result of mentioned microorganism activity degree, is controlled aeration rate and the above-mentioned extraction amount that contains the processing water of mud in the above-mentioned aerating step.
3. method of wastewater treatment according to claim 2 is characterized in that,
The atmosphere that above-mentioned depressurization steps will make the above-mentioned processing water that contains mud contact with above-mentioned high-concentrated ozone gas is set in the scope that absolute pressure is 10kPa～90kPa.
4. method of wastewater treatment according to claim 1 is characterized in that,
This method of wastewater treatment comprises:
Lonely step, before biological treatment step, the microorganism in above-mentioned waste water is discharged phosphorus;
Alkali treatment, to upgrading in above-mentioned ozone treatment step upgrading mud add alkaline liquid;
Phosphorus aggegation step is added the phosphorus agglutinant to the upgrading mud that has added alkali in above-mentioned alkali treatment; And
The phosphorus recycling step, be recovered in aggegation in the above-mentioned phosphorus aggegation step the phosphorus agglutinator,
Above-mentioned lonely step and above-mentioned aerating step consist of the biological treatment step of the property of being sick of,
In above-mentioned foldback step, the phosphorus removal mud that will remove phosphorus in above-mentioned phosphorus aggegation step is returned in the above-mentioned waste water.
5. each described method of wastewater treatment is characterized in that according to claim 1～4,
This method of wastewater treatment comprises:
The foaming step, by to upgrading in above-mentioned ozone treatment step upgrading mud be blown into gas it bubbled, above-mentioned upgrading mud is separated into foam mud and contains the molten parting liquid of depositing ozone gas;
The gas delivery step by to above-mentioned parting liquid spraying, is separated into useless ozone gas and water with above-mentioned parting liquid; And
The gas circulation step, the useless ozone gas that will in the above-mentioned gas separating step, separate, the gas that is blown into as upgrading mud in above-mentioned ozonize parts and utilizing,
In above-mentioned foldback step, the water that will separate in the above-mentioned gas separating step is returned in the above-mentioned waste water with above-mentioned foam mud.
6. a Waste Water Treatment is characterized in that,
This Waste Water Treatment comprises:
The biological treatment parts utilize the organism in the microorganism Decomposition Wastewater;
The aeration parts are blown into air to above-mentioned biological treatment parts;
The ozone gas generator produces ozone gas;
The ozone condensation means makes the ozone gas that is produced by above-mentioned ozone gas generator be adsorbed in sorbent material, generates high-concentrated ozone gas;
The gas-liquid mixed parts mix the processing water that contains mud extracted out from above-mentioned biological treatment parts and the high-concentrated ozone gas that has been generated by above-mentioned ozone condensation means;
The ozonize parts make mud in the above-mentioned processing water that contains mud contact with above-mentioned high-concentrated ozone gas and carry out upgrading;
The foldback parts, with utilize above-mentioned ozonize parts upgrading upgrading mud be returned to above-mentioned biological treatment parts;
Microorganism active degree measurement component is measured the microorganism active degree in the above-mentioned biological treatment parts; And
Function unit based on the measuring result of mentioned microorganism activity degree, is controlled aeration rate, the ozone gas amount in the above-mentioned gas-liquid mixed parts and the above-mentioned extraction amount that contains the processing water of mud of above-mentioned aeration parts.
7. a Waste Water Treatment is characterized in that,
This Waste Water Treatment comprises:
The biological treatment parts utilize the organism in the microorganism Decomposition Wastewater;
The aeration parts are blown into air to above-mentioned biological treatment parts;
The ozone gas generator produces ozone gas;
The ozone condensation means makes the ozone gas that is produced by above-mentioned ozone gas generator be adsorbed in sorbent material, generates high-concentrated ozone gas;
Attract parts, attract the above-mentioned high-concentrated ozone gas that has been generated by above-mentioned ozone condensation means;
The ozonize parts make mud in the above-mentioned processing water that contains mud contact with the above-mentioned high-concentrated ozone gas that attracts and mud are carried out upgrading;
Decompression member reduces pressure with the atmosphere that the above-mentioned high-concentrated ozone gas that attracts contacts to the mud in the above-mentioned processing water that contains mud;
The foldback parts, with utilize above-mentioned ozonize parts upgrading upgrading mud be returned to above-mentioned biological treatment parts;
Microorganism active degree measurement component is measured the microorganism active degree in the above-mentioned biological treatment parts; And
Function unit based on the measuring result of mentioned microorganism activity degree, is controlled aeration rate and the above-mentioned extraction amount that contains the processing water of mud of above-mentioned aeration parts.
8. Waste Water Treatment according to claim 7 is characterized in that,
The atmosphere that above-mentioned decompression member will make the above-mentioned processing water that contains mud contact with above-mentioned high-concentrated ozone gas is set in the scope that absolute pressure is 10kPa～90kPa.
9. Waste Water Treatment according to claim 6 is characterized in that,
This Waste Water Treatment comprises:
Anaerobic air tank is located at the upstream side of above-mentioned aerator tank;
The alkaline purification parts, by above-mentioned ozonize parts upgrading upgrading mud add alkaline liquid;
Phosphorus aggegation parts add the phosphorus agglutinant to the upgrading mud that has been added alkali by above-mentioned alkaline purification parts; And
The phosphorus recovery part, the phosphorus agglutinator that has reclaimed by the aggegation of above-mentioned phosphorus aggegation parts,
Above-mentioned anaerobic air tank and above-mentioned aerator tank consist of the biological treatment parts of the property of being sick of;
Above-mentioned foldback parts will be removed mud by the phosphorus that above-mentioned phosphorus aggegation parts have been removed phosphorus and be returned to above-mentioned anaerobic air tank.
10. each described Waste Water Treatment is characterized in that according to claim 6～9,
This Waste Water Treatment comprises:
The foaming parts are blown into gas by the upgrading mud in above-mentioned ozonize parts it are bubbled, and above-mentioned upgrading mud is separated into foam mud and the parting liquid that contains ozone gas;
The gas delivery parts by to above-mentioned parting liquid spraying, are separated into useless ozone gas and water with above-mentioned parting liquid; And
The gas circulation parts, the useless ozone gas that will have been separated by the above-mentioned gas separating component, the gas that is blown into as upgrading mud in above-mentioned ozonize parts and utilizing,
Above-mentioned foldback parts will be returned to above-mentioned aerator tank with above-mentioned foam mud by the water that the above-mentioned gas separating component has separated.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-070966 | 2012-03-27 | ||
| JP2012070966 | 2012-03-27 | ||
| JP2012-236444 | 2012-10-26 | ||
| JP2012236444A JP5950790B2 (en) | 2012-03-27 | 2012-10-26 | Wastewater treatment method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103359875A true CN103359875A (en) | 2013-10-23 |
| CN103359875B CN103359875B (en) | 2015-07-22 |
Family
ID=49362252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310040720.6A Active CN103359875B (en) | 2012-03-27 | 2013-02-01 | Waste water treatment method and waste water treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103359875B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105688595A (en) * | 2016-03-29 | 2016-06-22 | 威格气体纯化科技（苏州）股份有限公司 | Ozone removal purifying column and glove box |
| CN106103361A (en) * | 2014-04-29 | 2016-11-09 | 三菱电机株式会社 | Sludge treatment equipment and method for sludge treatment |
| CN107531524A (en) * | 2015-05-27 | 2018-01-02 | 三菱电机株式会社 | Water treatment system and method for treating water |
| CN109081499A (en) * | 2017-06-14 | 2018-12-25 | 三菱电机株式会社 | Waste water treatment system and wastewater treatment method |
| CN109650644A (en) * | 2017-10-10 | 2019-04-19 | 三菱电机株式会社 | Waste water treatment system |
| CN112028380A (en) * | 2019-06-04 | 2020-12-04 | 三菱电机株式会社 | Wastewater treatment system and wastewater treatment method |
| CN112607987A (en) * | 2020-12-29 | 2021-04-06 | 吉林农业大学 | System for ecological enzyme preparation is used for mud decrement |
| CN114380449A (en) * | 2022-01-26 | 2022-04-22 | 海宁天纵电子科技有限公司 | Device is destroyed to smart medicine residual liquid based on oxidation incineration method |
| CN114380448A (en) * | 2022-01-26 | 2022-04-22 | 海宁天纵电子科技有限公司 | Micro-incineration-method-based harmless treatment method for residual liquor of narcotic drugs |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001191097A (en) * | 1999-10-25 | 2001-07-17 | Sumitomo Precision Prod Co Ltd | Waste water treating method |
| CN1468817A (en) * | 2002-06-05 | 2004-01-21 | 三菱电机株式会社 | Organic waste liquid treatment method and apparatus |
| CN101522579A (en) * | 2006-09-29 | 2009-09-02 | 普莱克斯技术有限公司 | Ozonation of wastewater for reduction of sludge or foam and bulking control |
| JP2010221068A (en) * | 2009-03-19 | 2010-10-07 | Fuji Electric Holdings Co Ltd | Apparatus and method for processing organic waste liquid |
-
2013
- 2013-02-01 CN CN201310040720.6A patent/CN103359875B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001191097A (en) * | 1999-10-25 | 2001-07-17 | Sumitomo Precision Prod Co Ltd | Waste water treating method |
| CN1468817A (en) * | 2002-06-05 | 2004-01-21 | 三菱电机株式会社 | Organic waste liquid treatment method and apparatus |
| CN101522579A (en) * | 2006-09-29 | 2009-09-02 | 普莱克斯技术有限公司 | Ozonation of wastewater for reduction of sludge or foam and bulking control |
| JP2010221068A (en) * | 2009-03-19 | 2010-10-07 | Fuji Electric Holdings Co Ltd | Apparatus and method for processing organic waste liquid |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106103361A (en) * | 2014-04-29 | 2016-11-09 | 三菱电机株式会社 | Sludge treatment equipment and method for sludge treatment |
| CN107531524A (en) * | 2015-05-27 | 2018-01-02 | 三菱电机株式会社 | Water treatment system and method for treating water |
| CN107531524B (en) * | 2015-05-27 | 2022-01-11 | 三菱电机株式会社 | Water treatment system and water treatment method |
| CN105688595A (en) * | 2016-03-29 | 2016-06-22 | 威格气体纯化科技（苏州）股份有限公司 | Ozone removal purifying column and glove box |
| CN109081499A (en) * | 2017-06-14 | 2018-12-25 | 三菱电机株式会社 | Waste water treatment system and wastewater treatment method |
| CN109081499B (en) * | 2017-06-14 | 2022-06-24 | 三菱电机株式会社 | Wastewater treatment system and wastewater treatment method |
| CN109650644B (en) * | 2017-10-10 | 2022-05-27 | 三菱电机株式会社 | Wastewater treatment system |
| CN109650644A (en) * | 2017-10-10 | 2019-04-19 | 三菱电机株式会社 | Waste water treatment system |
| CN112028380A (en) * | 2019-06-04 | 2020-12-04 | 三菱电机株式会社 | Wastewater treatment system and wastewater treatment method |
| CN112607987A (en) * | 2020-12-29 | 2021-04-06 | 吉林农业大学 | System for ecological enzyme preparation is used for mud decrement |
| CN114380448A (en) * | 2022-01-26 | 2022-04-22 | 海宁天纵电子科技有限公司 | Micro-incineration-method-based harmless treatment method for residual liquor of narcotic drugs |
| CN114380449A (en) * | 2022-01-26 | 2022-04-22 | 海宁天纵电子科技有限公司 | Device is destroyed to smart medicine residual liquid based on oxidation incineration method |
| CN114380449B (en) * | 2022-01-26 | 2023-11-14 | 海宁天纵电子科技有限公司 | Device is destroyed to sesame essence medicine raffinate based on oxidation incineration method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103359875B (en) | 2015-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103359875B (en) | Waste water treatment method and waste water treatment system | |
| US7691268B2 (en) | Waste gas/wastewater treatment equipment and method of treating waste gas/wastewater | |
| US7662288B2 (en) | Water treatment method and water treatment system | |
| US8349192B2 (en) | Method for collapsing microbubbles | |
| US20090032460A1 (en) | Wastewater treatment method and wastewater treatment equipment | |
| US9023209B2 (en) | Systems and methods for converting gaseous byproducts of wastewater treatment into energy | |
| US20070068869A1 (en) | Waste water treatment method and waste water treatment apparatus | |
| US7575684B2 (en) | Waste water treatment apparatus and waste water treatment method | |
| AU2013394505B2 (en) | Water treatment device | |
| CN104918689A (en) | Systems and methods for diffusing gas into a liquid | |
| US7604733B2 (en) | Apparatus for biological removal of phosphorus and nitrogen using granulated methane-oxidizing bacteria | |
| JP6534245B2 (en) | Breeding water circulation system for closed circulation type breeding | |
| JP2010247132A (en) | Apparatus for treating forced foaming-type organic liquid mixture and treatment method | |
| CN103534213B (en) | Biological drain treatment apparatus | |
| JP4773211B2 (en) | Waste liquid treatment equipment | |
| JP2004141865A (en) | Ozone treatment method of surplus sludge, treatment apparatus for surplus sludge, and sludge-ozone mixer | |
| RU193750U1 (en) | Advanced Loop Fermenter | |
| CN219907202U (en) | Intensive equipment for strengthening ozone coupling micro-nano control | |
| JP6452374B2 (en) | Ozone treatment device, sludge treatment device, ozone treatment method and sludge treatment method | |
| JP5723672B2 (en) | Water treatment method and apparatus | |
| JP2016077929A (en) | Ozone treatment apparatus, sludge treatment apparatus, ozone treatment method, and sludge treatment method | |
| JP2014091067A (en) | Water purifier | |
| JPH09215909A (en) | Apparatus for treating gas containing volatile organic compound | |
| JP2016077927A (en) | Ozone treatment apparatus, sludge treatment apparatus, ozone treatment method, and sludge treatment method | |
| CN112607987A (en) | System for ecological enzyme preparation is used for mud decrement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1189380 Country of ref document: HK |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1189380 Country of ref document: HK |