CN104176887B - A kind of method of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant and Treating Municipal Sewage - Google Patents

A kind of method of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant and Treating Municipal Sewage Download PDF

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CN104176887B
CN104176887B CN201410448722.3A CN201410448722A CN104176887B CN 104176887 B CN104176887 B CN 104176887B CN 201410448722 A CN201410448722 A CN 201410448722A CN 104176887 B CN104176887 B CN 104176887B
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denitrification reactor
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supported denitrification
sbr
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CN104176887A (en
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彭永臻
杨延栋
张亮
张树军
邵和东
陈强
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Harbin Institute of Technology
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Abstract

A method for Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant and Treating Municipal Sewage, a kind of method that it relates to waste disposal plant and disposes of sewage.Object of the present invention will solve that to use the device and method of existing Treating Municipal Sewage to there is the cost of Treating Municipal Sewage high, the problem of the effluent quality instability after the system stability difference of disposing of sewage and process.Device comprises An/O dephosphorization organic matter removal reactor, radical sedimentation basin, collection distributing well, SBR self-supported denitrification reactor, on-Line Monitor Device, controller, gas blower, air volume regulating valve, gas meter, water inlet pipe and water decanter; Method: one, starter gear; Two, operating parameter is regulated; Three, reflux ratio parameter is regulated; Four, municipal effluent processes through An/O dephosphorization organic matter removal reactor, radical sedimentation basin and SBR self-supported denitrification reactor successively.The present invention is applicable to the upgrading of newly-built Sewage Plant and existing Sewage Plant.

Description

A kind of method of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant and Treating Municipal Sewage
Technical field
A kind of method that the present invention relates to waste disposal plant and dispose of sewage.
Background technology
Along with the fast development of China's economy, water environment pollution is day by day serious, and body eutrophication problem is particularly outstanding, is subject to the great attention of country and the public.It is the major reason causing body eutrophication that nitrogen phosphoric excessive in sewage enters receiving water body.For this reason, China has promulgated stricter effluent-disposal standard." urban wastewater treatment firm pollutant emission standard " (GB18918-2002) the one-level A standard regulation town sewage plant water outlet ammonia nitrogen <5mg/L wherein promulgated in 2002, total nitrogen < 15mg/L, newly-built Sewage Plant total phosphorus < 0.5mg/L.
In traditional biological denitrification dephosphorization technique, biological phosphate-eliminating is completed by polyP bacteria.Phosphorus can be stored in cell as energy substance using the form of poly-phosphate by this bacterioid.The principle of Biological Phosphorus Removal Processes is as follows: Sewage treatment systems aerobic/anaerobic alternate run, and the poly-phosphate under anaerobic condition in polyP bacteria decomposer is to synthesize ATP, and absorbing volatile organic acid synthesizes PHB, and is discharged into outside born of the same parents by phosphoric acid salt; PHB subsequently under aerobic condition in polyP bacteria meeting decomposer, excessively absorbs phosphoric acid salt and is stored in born of the same parents with the form of poly-phosphate.By discharging the object that the excess sludge being rich in phosphorus realizes phosphorus to remove from sewage.Biological denitrificaion has then been come by nitrification-denitrification approach.Under aerobic condition, ammonium oxidation is nitric nitrogen by nitrobacteria, and denitrifying bacterium utilizes dirty Organic substance in water to be nitrogen as electron donor by nitrate-nitrogen reduction under anoxic conditions subsequently, thus reaches the object of denitrogenation.Can see, in traditional biological denitrification dephosphorization technique, dephosphorization and denitrogenation also exist and are difficult to avoid and the contradiction be not easily in harmonious proportion.First polyP bacteria and nitrobacteria are inconsistent on sludge age, and for realizing good phosphor-removing effect, sewage treatment process need take lower sludge age.And short SRT is unfavorable for the enrichment of nitrifier in system, thus the denitrification effect of influential system.Secondly the phosphorus process of releasing of denitrification process and polyP bacteria all needs organism, due to the carbon source in competition water inlet, is difficult to synchronously realize good Nitrogen/Phosphorus Removal in sewage.Especially China's municipal wastewater treatment plant water inlet C/N is generally on the low side, and biological denitrificaion, dephosphorization can not be taken into account simultaneously, and effluent quality is difficult to up to standard.For realizing proposing mark transformation, often need additional carbon, working cost is expensive.The discovery of anaerobic ammonia oxidizing bacteria makes sewage autotrophic denitrification become possibility.Under anaerobic, this bacterioid can be oxidized ammonia nitrogen as electron acceptor(EA) by nitrite, and the two is all converted into nitrogen.Based on this short distance nitration-anaerobic ammoxidation Approach of Removal of Nitrogen due to without the need to organic carbon source, save the interest that the advantages such as aeration rate, sludge yield are few cause investigator, and be successfully applied to high-ammonia-nitrogen sewage as in the process of sludge-digestion liquid.The process that this Approach of Removal of Nitrogen is applied to municipal effluent also has huge technical superiority: can solve a difficult problem for carbon source in urban sewage deficiency, synchronously realize good Nitrogen/Phosphorus Removal, save aeration energy consumption etc.But because China's municipal effluent ammonia nitrogen concentration is low, water temperature in winter is low, it is urgently to be resolved hurrily also to there are some technological difficulties in the application of short distance nitration-anaerobic ammoxidation Approach of Removal of Nitrogen, the enrichment and effectively holding comprising anaerobic ammonia oxidizing bacteria is stayed, suppress the activity of NOB to ensure the steady running of system, the quantity coordinating each bacterioid with activity to reach optimum handling effect etc.
Summary of the invention
Object of the present invention will solve that to use the device and method of existing Treating Municipal Sewage to there is the cost of Treating Municipal Sewage high, the system stability difference of disposing of sewage and the problem of the effluent quality instability after processing, and a kind of method that Continuous Flow An/O dephosphorization is coupled SBR autotrophic denitrification waste disposal plant and Treating Municipal Sewage is provided.
A kind of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant comprises An/O dephosphorization organic matter removal reactor, water inlet pipe, first speed-adjustable stir device, first corundum aeration head, first gas meter, first air volume regulating valve, first gas blower, first rising pipe, radical sedimentation basin, sludge reflux pump, residual sludge pump, second rising pipe, mud return line, excess sludge discharge pipe, collection distributing well, SBR self-supported denitrification reactor water inlet pipe, SBR self-supported denitrification reactor is always intake gate valve, one SBR self-supported denitrification reactor, 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor, 4th SBR self-supported denitrification reactor, second speed-adjustable stir device, fixed ball filler of wandering about as a refugee, second corundum aeration head, master control system, rising pipe, on-Line Monitor Device, controller, second gas blower, second air volume regulating valve and the second gas meter,
Described water inlet pipe is connected with An/O dephosphorization organic matter removal reactor, be provided with the first speed-adjustable stir device in anaerobic zone in An/O dephosphorization organic matter removal reactor, the anaerobic zone in An/O dephosphorization organic matter removal reactor is connected with the aerobic zone in An/O dephosphorization organic matter removal reactor by the first opening; Be provided with the first corundum aeration head in aerobic zone in An/O dephosphorization organic matter removal reactor, the first corundum aeration head is connected with the first gas blower with the first air volume regulating valve by the first gas meter; Aerobic zone in An/O dephosphorization organic matter removal reactor is connected with radical sedimentation basin by the first rising pipe, one end of mud return line is connected with radical sedimentation basin, the other end of mud return line is connected with water inlet pipe, and the pipeline of mud return line arranges sludge reflux pump; Excess sludge discharge pipe is connected with mud return line, and the pipeline of excess sludge discharge pipe arranges residual sludge pump;
Radical sedimentation basin is connected by the second rising pipe one end with collection distributing well, always the intake inlet end of gate valve of the collection the other end of distributing well and SBR self-supported denitrification reactor is connected, and SBR self-supported denitrification reactor is always intake, gate valve is arranged on the pipeline of SBR self-supported denitrification reactor water inlet pipe, always the intake exit end of gate valve of SBR self-supported denitrification reactor is intake with a SBR self-supported denitrification reactor gate valve respectively, 2nd SBR self-supported denitrification reactor water inlet gate valve, Three S's BR self-supported denitrification reactor water inlet gate valve is connected with the inlet end of the 4th SBR self-supported denitrification reactor water inlet gate valve, the exit end of the one SBR self-supported denitrification reactor water inlet gate valve is connected with a SBR self-supported denitrification reactor, the exit end of the 2nd SBR self-supported denitrification reactor water inlet gate valve is connected with the 2nd SBR self-supported denitrification reactor, the exit end of Three S's BR self-supported denitrification reactor water inlet gate valve is connected with Three S's BR self-supported denitrification reactor, the exit end of the 4th SBR self-supported denitrification reactor water inlet gate valve is connected with the 4th SBR self-supported denitrification reactor,
The second speed-adjustable stir device, fixed ball filler and the second corundum aeration head of wandering about as a refugee is respectively equipped with in one SBR self-supported denitrification reactor, the 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor and the 4th SBR self-supported denitrification reactor; On-Line Monitor Device is separately positioned on a SBR self-supported denitrification reactor, the 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor and the 4th SBR self-supported denitrification reactor internal upper part, the output terminal of on-Line Monitor Device is connected with the input terminus of controller, controller output terminal be connected with the input terminus of master control system with the second gas blower, the second air volume regulating valve respectively; Second gas blower, the second air volume regulating valve and the second gas meter are connected with the second corundum aeration head in the 4th SBR self-supported denitrification reactor with a SBR self-supported denitrification reactor, the 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor respectively;
One end of first water decanter is arranged on the underwater of a SBR self-supported denitrification reactor, and the other end of the first water decanter is connected with the feed-water end of the 3rd rising pipe; One end of second water decanter is arranged on the underwater of the 2nd SBR self-supported denitrification reactor, and the other end of the second water decanter is connected with the feed-water end of the 4th rising pipe; One end of 3rd water decanter is arranged on the underwater of Three S's BR self-supported denitrification reactor, and the other end of the 3rd water decanter is connected with the feed-water end of the 5th rising pipe; One end of 4th water decanter is arranged on the underwater of the 4th SBR self-supported denitrification reactor, and the other end of the 4th water decanter is connected with the feed-water end of the 6th rising pipe; The feed-water end of rising pipe is connected with the water side of the 6th rising pipe with the 3rd rising pipe, the 4th rising pipe, the 5th rising pipe respectively.
Utilize the method for a kind of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant Treating Municipal Sewage, specifically complete according to the following steps:
One, starter gear: inoculate municipal wastewater treatment plant secondary sludge in An/O dephosphorization organic matter removal reactor, makes the sludge concentration in An/O dephosphorization organic matter removal reactor reach 3000mg/L ~ 5000mg/L; In a SBR self-supported denitrification reactor, the 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor and the 4th SBR self-supported denitrification reactor, all inoculate the short distance nitration mud of steady running, make the sludge concentration in a SBR self-supported denitrification reactor, the 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor and the 4th SBR self-supported denitrification reactor all reach 3000mg/L ~ 5000mg/L; Be filled into respectively by fixed ball filler of wandering about as a refugee in a SBR self-supported denitrification reactor, the 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor and the 4th SBR self-supported denitrification reactor, the filling proportion of filler is 5% ~ 10% of reactor volume;
Two, operating parameter is regulated: regulate that the dissolved oxygen concentration in the aerobic zone in An/O dephosphorization organic matter removal reactor is 2mg/L ~ 3mg/L, dissolved oxygen concentration in a SBR self-supported denitrification reactor, the 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor and the 4th SBR self-supported denitrification reactor is all adjusted to 0.2mg/L ~ 0.3mg/L; Regulate flooding velocity, the water conservancy residence time making the anaerobic zone in An/O dephosphorization organic matter removal reactor is 0.5h ~ 1.0h, the water conservancy residence time of the aerobic zone in An/O dephosphorization organic matter removal reactor is 1.5h ~ 2.5h, the water conservancy residence time of radical sedimentation basin is 1h ~ 1.5h, and the water conservancy residence time of a SBR self-supported denitrification reactor, the 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor, the 4th SBR self-supported denitrification reactor is 8h ~ 9h;
Three, reflux ratio parameter is regulated: open sludge reflux pump and residual sludge pump, the return sludge ratio that conditioning of mud return line is back to water inlet pipe is 50% ~ 100%;
Four, municipal effluent enters into the anaerobic zone of An/O dephosphorization organic matter removal reactor from water inlet pipe, municipal effluent carries out anaerobic reaction under the agitation condition of the first speed-adjustable stir device, then current enter into the aerobic zone of An/O dephosphorization organic matter removal reactor by the first opening plug-flow, react under aeration, then enter into radical sedimentation basin by the first rising pipe and carry out mud-water separation, municipal effluent enters into collection distributing well by the second rising pipe; A mud part in radical sedimentation basin is back to water inlet pipe by mud return line, and another part is got rid of through excess sludge discharge pipe;
Water in collection distributing well enters into a SBR self-supported denitrification reactor, the 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor and the 4th SBR self-supported denitrification reactor successively and is further processed, and water inlet order is as follows:
First open SBR self-supported denitrification reactor always intake gate valve and a SBR self-supported denitrification reactor water inlet gate valve, collection distributing well in water by SBR self-supported denitrification reactor water inlet pipe, SBR self-supported denitrification reactor always intake gate valve and a SBR self-supported denitrification reactor water inlet gate valve enter into a SBR self-supported denitrification reactor, when to enter into the SBR self-supported denitrification reactor time be 2h to the water in distributing well, close a SBR self-supported denitrification reactor water inlet gate valve, open the 2nd SBR self-supported denitrification reactor water inlet gate valve, when to enter into the SBR self-supported denitrification reactor time be 2h to the water in distributing well, close the 2nd SBR self-supported denitrification reactor water inlet gate valve, open Three S's BR self-supported denitrification reactor water inlet gate valve, when to enter into the SBR self-supported denitrification reactor time be 2h to the water in distributing well, close Three S's BR self-supported denitrification reactor water inlet gate valve, open the 4th SBR self-supported denitrification reactor water inlet gate valve,
Open the second gas blower, water in one SBR self-supported denitrification reactor, the 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor and the 4th SBR self-supported denitrification reactor reacts under aeration, and on-Line Monitor Device detects pH, DO, NH in SBR self-supported denitrification reactor a 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor and the 4th SBR self-supported denitrification reactor respectively 4 +-N, NO 2 --N and NO 3 -the concentration of-N, if the NH in a SBR self-supported denitrification reactor, the 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor and the 4th SBR self-supported denitrification reactor 4 +-N concentration is lower than 3mg/L or NH 4 +-N concentration is less than NO 2 --N concentration and NO 3 -during-N concentration sum, master control system is respectively to the controller output order in a SBR self-supported denitrification reactor, the 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor and the 4th SBR self-supported denitrification reactor, controller controls the second gas blower, stop aeration, then open the second speed-adjustable stir device and carry out mix and blend; The water reaction times in one SBR self-supported denitrification reactor, the 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor and the 4th SBR self-supported denitrification reactor reaches 4h ~ 4.5h, closes the second gas blower or the second speed-adjustable stir device; Water in one SBR self-supported denitrification reactor, the 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor and the 4th SBR self-supported denitrification reactor enters precipitate phase respectively, after precipitation 1h, open and adjust the first water decanter, the second water decanter, the first water decanter and the first water decanter carry out draining to the depth of water 1/2 place; Water after a SBR self-supported denitrification reactor process is discharged by the first water decanter, the 3rd rising pipe and rising pipe, obtains the water outlet after processing; Water after the 2nd SBR self-supported denitrification reactor process is discharged through the second water decanter, the 4th rising pipe and rising pipe, obtains the water outlet after processing; Water after the process of Three S's BR self-supported denitrification reactor is discharged through the 3rd water decanter, the 5th rising pipe and rising pipe, obtains the water outlet after processing; Water after the 4th SBR self-supported denitrification reactor process is discharged through the 4th water decanter, the 6th rising pipe and rising pipe, obtains the water outlet after processing.
Advantage of the present invention:
One, in the present invention, first municipal effluent enters An/O dephosphorization organic matter removal reactor enhanced biological phosphorus removal, removes most of organism simultaneously, then sewage enters a SBR self-supported denitrification reactor, the 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor and the 4th SBR self-supported denitrification reactor respectively, realizes autotrophic denitrification mainly through short distance nitration-anaerobic ammoxidation approach, one SBR self-supported denitrification reactor, 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor and the 4th SBR self-supported denitrification reactor adopt combined type sludge system, system adds fixed ball filler of wandering about as a refugee, the ball of wandering about as a refugee of fixed ball filler of wandering about as a refugee is built with the biofilm packing in existing high ammonia nitrogen anaerobic ammonia oxidation reactor, by the microbial film of apposition growth for anaerobic ammonia oxidizing bacteria provides suitable anaerobic environment, and realize effectively holding of this bacterium and stay, floc sludge is then based on ammonia oxidation bacteria, the regulation and control of strengthening dissolved oxygen can be played, improve the effect of ammoxidation activity,
Two, in the present invention, a SBR self-supported denitrification reactor, the 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor and the 4th SBR self-supported denitrification reactor time cycle of operation are 8h, every day operation 3 cycle;
Three, present invention achieves the synchronous denitrification dephosphorizing of low C/N municipal effluent, solve traditional technology because of carbon source not enough water outlet N, P and be difficult to a difficult problem up to standard; By enhanced biological phosphorus removal, water outlet TP can at below 0.5mg/L, and in excess sludge, phosphorus content is high simultaneously, is conducive to the recovery of phosphorus; Under high loads, more COD transfers in mud An/O dephosphorization organic matter removal reactor, improves energy recovery rate; Can be realized the efficient removal of N by short distance nitration-anaerobic ammoxidation approach, denitrification process can save the oxygen-supplying amount of 57.5% ~ 60%;
Four, the present invention is respectively biological phosphate-eliminating and autotrophic denitrification process and have chosen best flow patterns, and biological phosphate-eliminating adopts the An/O dephosphorization organic matter removal reactor of pulling flow type, and operation is simple, without the need to operating device; And autotrophic denitrification adopts a step SBR self-supported denitrification reactor, the 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor and the 4th SBR self-supported denitrification reactor, flexible operation mode, can the accurate control of realization response process;
Five, the present invention is by master control system, on-Line Monitor Device and controller, pH, DO, NH in on-line monitoring water 4 +-N, NO 2 --N, NO 3 --N controls DO and the aeration time of a SBR self-supported denitrification reactor, the 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor and the 4th SBR self-supported denitrification reactor in real time, effectively can prevent the generation of aeration, continue the activity suppressing NOB, and ensure excellent treatment effect, a difficult problem for poor, the short distance nitration destructible of system stability when solving Anammox Treating Municipal Sewage;
Six, in the present invention, a SBR self-supported denitrification reactor, the 2nd SBR self-supported denitrification reactor, Three S's BR self-supported denitrification reactor and the 4th SBR self-supported denitrification reactor change the impact load caused have very strong tolerance to temperature, concentration of substrate; There is operating method flexibly, during as winter low temperature, the reaction times can be extended by water inlet limit, limit aeration, ensure stable treatment effect; Summer suitably can shorten aeration time, avoids unnecessary energy expenditure;
Seven, when the present invention is for the treatment of municipal effluent, treatment effect is good, and indices all can reach sewage effluents one-level A standard, and system stability is strong, less energy consumption.
The present invention is applicable to the upgrading of newly-built Sewage Plant and existing Sewage Plant.
Accompanying drawing explanation
Fig. 1 is the structural representation of the device of a kind of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification Treating Municipal Sewage described in embodiment one.
Embodiment
Embodiment one: present embodiment is that a kind of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant comprises An/O dephosphorization organic matter removal reactor 1, water inlet pipe 1-1, first speed-adjustable stir device 1-2, first corundum aeration head 1-3, first gas meter 1-4, first air volume regulating valve 1-5, first gas blower 1-6, first rising pipe 1-7, radical sedimentation basin 2, sludge reflux pump 2-1, residual sludge pump 2-2, second rising pipe 2-3, mud return line 2-4, excess sludge discharge pipe 2-5, collection distributing well 3, SBR self-supported denitrification reactor water inlet pipe 4, SBR self-supported denitrification reactor is always intake gate valve 5, one SBR self-supported denitrification reactor 6, 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8, 4th SBR self-supported denitrification reactor 9, second speed-adjustable stir device 10, fixed ball filler 11 of wandering about as a refugee, second corundum aeration head 12, master control system 13, rising pipe 14, on-Line Monitor Device 13-1, controller 13-2, second gas blower 15, second air volume regulating valve 16 and the second gas meter 17,
Described water inlet pipe 1-1 is connected with An/O dephosphorization organic matter removal reactor 1, be provided with the first speed-adjustable stir device 1-2 in anaerobic zone 1-8 in An/O dephosphorization organic matter removal reactor 1, the anaerobic zone 1-8 in An/O dephosphorization organic matter removal reactor 1 is connected with the aerobic zone 1-9 in An/O dephosphorization organic matter removal reactor 1 by the first opening 1-10; Be provided with the first corundum aeration head 1-3 in aerobic zone 1-9 in An/O dephosphorization organic matter removal reactor 1, the first corundum aeration head 1-3 is connected with the first gas blower 1-6 with the first air volume regulating valve 1-5 by the first gas meter 1-4; Aerobic zone 1-9 in An/O dephosphorization organic matter removal reactor 1 is connected with radical sedimentation basin 2 by the first rising pipe 1-7, one end of mud return line 2-4 is connected with radical sedimentation basin 2, the other end of mud return line 2-4 is connected with water inlet pipe 1-1, and the pipeline of mud return line 2-4 arranges sludge reflux pump 2-1; Excess sludge discharge pipe 2-5 is connected with mud return line 2-4, and the pipeline of excess sludge discharge pipe 2-5 arranges residual sludge pump 2-2;
Radical sedimentation basin 2 is connected with one end of collection distributing well 3 by the second rising pipe 2-3, always the intake inlet end of gate valve 5 of the collection the other end of distributing well 3 and SBR self-supported denitrification reactor is connected, and SBR self-supported denitrification reactor is always intake, gate valve 5 is arranged on the pipeline of SBR self-supported denitrification reactor water inlet pipe 4, always the intake exit end of gate valve 5 of SBR self-supported denitrification reactor is intake with a SBR self-supported denitrification reactor gate valve 6-1 respectively, 2nd SBR self-supported denitrification reactor water inlet gate valve 7-1, Three S's BR self-supported denitrification reactor water inlet gate valve 8-1 is connected with the inlet end of the 4th SBR self-supported denitrification reactor water inlet gate valve 9-1, the exit end of the one SBR self-supported denitrification reactor water inlet gate valve 6-1 is connected with a SBR self-supported denitrification reactor 6, the exit end of the 2nd SBR self-supported denitrification reactor water inlet gate valve 7-1 is connected with the 2nd SBR self-supported denitrification reactor 7, the exit end of Three S's BR self-supported denitrification reactor water inlet gate valve 8-1 is connected with Three S's BR self-supported denitrification reactor 8, the exit end of the 4th SBR self-supported denitrification reactor water inlet gate valve 9-1 is connected with the 4th SBR self-supported denitrification reactor 9,
The second speed-adjustable stir device 10, fixed ball filler 11 and the second corundum aeration head 12 of wandering about as a refugee is respectively equipped with in one SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9; On-Line Monitor Device 13-1 is separately positioned on a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 internal upper part, the output terminal of on-Line Monitor Device 13-1 is connected with the input terminus of controller 13-2, controller 13-2 output terminal be connected with the input terminus of master control system 13 with the second gas blower 15, second air volume regulating valve 16 respectively; Second gas blower 15, second air volume regulating valve 16 is connected with the second corundum aeration head 12 in the 4th SBR self-supported denitrification reactor 9 with a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 respectively with the second gas meter 17;
One end of first water decanter 6-5 is arranged on the underwater of a SBR self-supported denitrification reactor 6, and the other end of the first water decanter 6-5 is connected with the feed-water end of the 3rd rising pipe 6-6; One end of second water decanter 7-5 is arranged on the underwater of the 2nd SBR self-supported denitrification reactor 7, and the other end of the second water decanter 7-5 is connected with the feed-water end of the 4th rising pipe 7-6; One end of 3rd water decanter 8-5 is arranged on the underwater of Three S's BR self-supported denitrification reactor 8, and the other end of the 3rd water decanter 8-5 is connected with the feed-water end of the 5th rising pipe 8-6; One end of 4th water decanter 9-5 is arranged on the underwater of the 4th SBR self-supported denitrification reactor 9, and the other end of the 4th water decanter 9-5 is connected with the feed-water end of the 6th rising pipe 9-6; The feed-water end of rising pipe 14 is connected with the water side of the 6th rising pipe 9-6 with the 3rd rising pipe 6-6, the 4th rising pipe 7-6, the 5th rising pipe 8-6 respectively.
The advantage of present embodiment:
One, in present embodiment, first municipal effluent enters An/O dephosphorization organic matter removal reactor 1 enhanced biological phosphorus removal, removes most of organism simultaneously, then sewage enters a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 respectively, realizes autotrophic denitrification mainly through short distance nitration-anaerobic ammoxidation approach, one SBR self-supported denitrification reactor 6, 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 adopt combined type sludge system, system adds fixed ball filler 11 of wandering about as a refugee, the ball of wandering about as a refugee of fixed ball filler 11 of wandering about as a refugee is built with the biofilm packing in high ammonia nitrogen anaerobic ammonia oxidation reactor, by the microbial film of apposition growth for anaerobic ammonia oxidizing bacteria provides suitable anaerobic environment, and realize effectively holding of this bacterium and stay, floc sludge is then based on ammonia oxidation bacteria, the regulation and control of strengthening dissolved oxygen can be played, improve the effect of ammoxidation activity,
Two, in present embodiment, a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 time cycle of operation are 8h, every day operation 3 cycle;
Three, present embodiment achieves the synchronous denitrification dephosphorizing of low C/N municipal effluent, solves traditional technology because of carbon source not enough water outlet N, P and is difficult to a difficult problem up to standard; By enhanced biological phosphorus removal, water outlet TP can at below 0.5mg/L, and in excess sludge, phosphorus content is high simultaneously, is conducive to the recovery of phosphorus; Under high loads, more COD transfers in mud An/O dephosphorization organic matter removal reactor 1, improves energy recovery rate; Can be realized the efficient removal of N by short distance nitration-anaerobic ammoxidation approach, denitrification process can save the oxygen-supplying amount of 57.5% ~ 60%;
Four, present embodiment is respectively biological phosphate-eliminating and autotrophic denitrification process and have chosen best flow patterns, and biological phosphate-eliminating adopts the An/O dephosphorization organic matter removal reactor 1 of pulling flow type, and operation is simple, without the need to operating device; And autotrophic denitrification adopts a step SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9, flexible operation mode, can the accurate control of realization response process;
Five, present embodiment is by master control system 13, on-Line Monitor Device 13-1 and controller 13-2, pH, DO, NH in on-line monitoring water 4 +-N, NO 2 --N, NO 3 --N controls DO and the aeration time of a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 in real time, effectively can prevent the generation of aeration, continue the activity suppressing NOB, and ensure excellent treatment effect, a difficult problem for poor, the short distance nitration destructible of system stability when solving Anammox Treating Municipal Sewage;
Six, in present embodiment, a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 pairs of temperature, concentration of substrate change the impact load caused and have very strong tolerance; There is operating method flexibly, during as winter low temperature, the reaction times can be extended by water inlet limit, limit aeration, ensure stable treatment effect; Summer suitably can shorten aeration time, avoids unnecessary energy expenditure;
Seven, when present embodiment is for the treatment of municipal effluent, treatment effect is good, and indices all can reach sewage effluents one-level A standard, and system stability is strong, less energy consumption.
Present embodiment is applicable to the upgrading of newly-built Sewage Plant and existing Sewage Plant.
Embodiment two: present embodiment and embodiment one difference are: the ball of wandering about as a refugee of fixed ball filler 11 of wandering about as a refugee is built with the biofilm packing in high ammonia nitrogen anaerobic ammonia oxidation reactor.Other steps are identical with embodiment one.
Embodiment three: one of present embodiment and embodiment one or two difference is: An/O dephosphorization organic matter removal reactor 1 is the waste disposal plant of pulling flow type; One SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 are step waste disposal plant.Other steps are identical with embodiment one or two.
Embodiment four: present embodiment utilizes the method for a kind of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant Treating Municipal Sewage specifically to complete according to the following steps:
One, starter gear: inoculate municipal wastewater treatment plant secondary sludge in An/O dephosphorization organic matter removal reactor 1, makes the sludge concentration in An/O dephosphorization organic matter removal reactor 1 reach 3000mg/L ~ 5000mg/L; In a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9, all inoculate the short distance nitration mud of steady running, make the sludge concentration in a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 all reach 3000mg/L ~ 5000mg/L; Fixed ball filler 11 of wandering about as a refugee is filled into a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 respectively) in, the filling proportion of filler is 5% ~ 10% of reactor volume;
Two, operating parameter is regulated: regulate that the dissolved oxygen concentration in the aerobic zone 1-9 in An/O dephosphorization organic matter removal reactor 1 is 2mg/L ~ 3mg/L, dissolved oxygen concentration in a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 is all adjusted to 0.2mg/L ~ 0.3mg/L; Regulate flooding velocity, the water conservancy residence time making the anaerobic zone 1-8 in An/O dephosphorization organic matter removal reactor 1 is 0.5h ~ 1.0h, the water conservancy residence time of the aerobic zone 1-9 in An/O dephosphorization organic matter removal reactor 1 is 1.5h ~ 2.5h, the water conservancy residence time of radical sedimentation basin 2 is 1h ~ 1.5h, and the water conservancy residence time of a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8, the 4th SBR self-supported denitrification reactor 9 is 8h ~ 9h;
Three, reflux ratio parameter is regulated: open sludge reflux pump 2-1 and residual sludge pump 2-2, the return sludge ratio that conditioning of mud return line 2-4 is back to water inlet pipe 1-1 is 50% ~ 100%;
Four, municipal effluent enters into the anaerobic zone 1-8 of An/O dephosphorization organic matter removal reactor 1 from water inlet pipe 1-1, municipal effluent carries out anaerobic reaction under the agitation condition of the first speed-adjustable stir device 1-2, then current enter into the aerobic zone 1-9 of An/O dephosphorization organic matter removal reactor 1 by the first opening 1-10 plug-flow, react under aeration, then enter into radical sedimentation basin 2 by the first rising pipe 1-7 and carry out mud-water separation, municipal effluent is by the second rising pipe 2-3) enter into collection distributing well 3; A mud part in radical sedimentation basin 2 is back to water inlet pipe 1-1 by mud return line 2-4, and another part is got rid of through excess sludge discharge pipe 2-5;
Water in collection distributing well 3 enters into a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 successively and is further processed, and water inlet order is as follows:
First open SBR self-supported denitrification reactor always to intake gate valve 5 and SBR self-supported denitrification reactor water inlet gate valve 6-1, the water in collection distributing well 3 enters into a SBR self-supported denitrification reactor 6 by always intake gate valve 5 and SBR self-supported denitrification reactor water inlet gate valve 6-1 of SBR self-supported denitrification reactor water inlet pipe 4, SBR self-supported denitrification reactor, when to enter into SBR self-supported denitrification reactor 6 time be 2h to the water in distributing well 3, close a SBR self-supported denitrification reactor water inlet gate valve 6-1, open the 2nd SBR self-supported denitrification reactor water inlet gate valve 7-1, when to enter into SBR self-supported denitrification reactor 6 time be 2h to the water in distributing well 3, close the 2nd SBR self-supported denitrification reactor water inlet gate valve 7-1, open Three S's BR self-supported denitrification reactor water inlet gate valve 8-1, when to enter into SBR self-supported denitrification reactor 6 time be 2h to the water in distributing well 3, close Three S's BR self-supported denitrification reactor water inlet gate valve 8-1, open the 4th SBR self-supported denitrification reactor water inlet gate valve 9-1,
Open the second gas blower 15, water in one SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 reacts under aeration, and on-Line Monitor Device 13-1 detects pH, DO, NH in SBR self-supported denitrification reactor 6 a 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 respectively 4 +-N, NO 2 --N and NO 3 -the concentration of-N, if the NH in a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 4 +-N concentration is lower than 3mg/L or NH 4 +-N concentration is less than NO 2 --N concentration and NO 3 -during-N concentration sum, master control system 13 is respectively to the controller 13-2 output order in a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9, controller 13-2 controls the second gas blower 15, stop aeration, then open the second speed-adjustable stir device 10 and carry out mix and blend; The water reaction times in one SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 reaches 4h ~ 4.5h, closes the second gas blower 15 or the second speed-adjustable stir device 10; Water in one SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 enters precipitate phase respectively, after precipitation 1h, open and adjust the first water decanter 6-5, the second water decanter 7-5, the first water decanter 8-5 and the first water decanter 9-5 carries out draining to the depth of water 1/2 place; Water after a SBR self-supported denitrification reactor 6 processes is discharged by the first water decanter 6-5, the 3rd rising pipe 6-6 and rising pipe 14, obtains the water outlet after processing; Water after the 2nd SBR self-supported denitrification reactor 7 processes is discharged through the second water decanter 7-5, the 4th rising pipe 7-6 and rising pipe 14, obtains the water outlet after processing; Water after Three S's BR self-supported denitrification reactor 8 processes is discharged through the 3rd water decanter 8-5, the 5th rising pipe 8-6 and rising pipe 14, obtains the water outlet after processing; Water after the 4th SBR self-supported denitrification reactor 9 processes is discharged through the 4th water decanter 9-5, the 6th rising pipe 9-6 and rising pipe 14, obtains the water outlet after processing.
The advantage of present embodiment:
One, in present embodiment, first municipal effluent enters An/O dephosphorization organic matter removal reactor 1 enhanced biological phosphorus removal, removes most of organism simultaneously, then sewage enters a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 respectively, realizes autotrophic denitrification mainly through short distance nitration-anaerobic ammoxidation approach, one SBR self-supported denitrification reactor 6, 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 adopt combined type sludge system, system adds fixed ball filler 11 of wandering about as a refugee, the ball of wandering about as a refugee of fixed ball filler 11 of wandering about as a refugee is built with the biofilm packing in high ammonia nitrogen anaerobic ammonia oxidation reactor, by the microbial film of apposition growth for anaerobic ammonia oxidizing bacteria provides suitable anaerobic environment, and realize effectively holding of this bacterium and stay, floc sludge is then based on ammonia oxidation bacteria, the regulation and control of strengthening dissolved oxygen can be played, improve the effect of ammoxidation activity,
Two, in present embodiment, a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 time cycle of operation are 8h, every day operation 3 cycle;
Three, present embodiment achieves the synchronous denitrification dephosphorizing of low C/N municipal effluent, solves traditional technology because of carbon source not enough water outlet N, P and is difficult to a difficult problem up to standard; By enhanced biological phosphorus removal, water outlet TP can at below 0.5mg/L, and in excess sludge, phosphorus content is high simultaneously, is conducive to the recovery of phosphorus; Under high loads, more COD transfers in mud An/O dephosphorization organic matter removal reactor 1, improves energy recovery rate; Can be realized the efficient removal of N by short distance nitration-anaerobic ammoxidation approach, denitrification process can save the oxygen-supplying amount of 57.5% ~ 60%;
Four, present embodiment is respectively biological phosphate-eliminating and autotrophic denitrification process and have chosen best flow patterns, and biological phosphate-eliminating adopts the An/O dephosphorization organic matter removal reactor 1 of pulling flow type, and operation is simple, without the need to operating device; And autotrophic denitrification adopts a step SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9, flexible operation mode, can the accurate control of realization response process;
Five, present embodiment is by master control system 13, on-Line Monitor Device 13-1 and controller 13-2, pH, DO, NH in on-line monitoring water 4 +-N, NO 2 --N, NO 3 --N controls DO and the aeration time of a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 in real time, effectively can prevent the generation of aeration, continue the activity suppressing NOB, and ensure excellent treatment effect, a difficult problem for poor, the short distance nitration destructible of system stability when solving Anammox Treating Municipal Sewage;
Six, in present embodiment, a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 pairs of temperature, concentration of substrate change the impact load caused and have very strong tolerance; There is operating method flexibly, during as winter low temperature, the reaction times can be extended by water inlet limit, limit aeration, ensure stable treatment effect; Summer suitably can shorten aeration time, avoids unnecessary energy expenditure;
Seven, when present embodiment is for the treatment of municipal effluent, treatment effect is good, and indices all can reach sewage effluents one-level A standard, and system stability is strong, less energy consumption.
Present embodiment is applicable to the upgrading of newly-built Sewage Plant and existing Sewage Plant.
Embodiment five: the difference of present embodiment and embodiment four is: the ball of wandering about as a refugee of fixed ball filler 11 of wandering about as a refugee is built with the biofilm packing in existing high ammonia nitrogen anaerobic ammonia oxidation reactor.Other steps are identical with embodiment four.
Embodiment six: one of present embodiment and embodiment 4 one to five difference is: the An/O dephosphorization organic matter removal reactor 1 described in step one is the waste disposal plant of pulling flow type; One SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 are step waste disposal plant.Other steps are identical with embodiment 4 one to five.
Embodiment seven: one of present embodiment and embodiment four to six difference is: the sludge age in the An/O dephosphorization organic matter removal reactor 1 described in step one is 3d ~ 5d.Other steps are identical with embodiment four to six.
Embodiment eight: one of present embodiment and embodiment four to seven difference is: inoculate municipal wastewater treatment plant secondary sludge in step one in An/O dephosphorization organic matter removal reactor 1, makes the sludge concentration in An/O dephosphorization organic matter removal reactor 1 reach 4000mg/L.Other steps are identical with embodiment four to seven.
Embodiment nine: one of present embodiment and embodiment four to eight difference is: the short distance nitration mud all inoculating steady running in step one in a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9, makes the sludge concentration in a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 all reach 4800mg/L; Be filled into respectively by fixed ball filler 11 of wandering about as a refugee in a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9, the filling proportion of filler is 5% ~ 10% of reactor volume.Other steps are identical with embodiment four to eight.
Embodiment ten: one of present embodiment and embodiment four to nine difference is: in the municipal effluent described in step 4, the concentration of COD is 160mg/L ~ 250mg/L, NH 4 +the concentration of-N is 38.4mg/L ~ 50.7mg/L, NO 2 -the concentration of-N≤0.25mg/L, NO 3 -concentration≤the 1mg/L of-N.Other steps are identical with embodiment four to nine.
Adopt following verification experimental verification beneficial effect of the present invention:
Test one: a kind of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant comprises An/O dephosphorization organic matter removal reactor 1, water inlet pipe 1-1, first speed-adjustable stir device 1-2, first corundum aeration head 1-3, first gas meter 1-4, first air volume regulating valve 1-5, first gas blower 1-6, first rising pipe 1-7, radical sedimentation basin 2, sludge reflux pump 2-1, residual sludge pump 2-2, second rising pipe 2-3, mud return line 2-4, excess sludge discharge pipe 2-5, collection distributing well 3, SBR self-supported denitrification reactor water inlet pipe 4, SBR self-supported denitrification reactor is always intake gate valve 5, one SBR self-supported denitrification reactor 6, 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8, 4th SBR self-supported denitrification reactor 9, second speed-adjustable stir device 10, fixed ball filler 11 of wandering about as a refugee, second corundum aeration head 12, master control system 13, rising pipe 14, on-Line Monitor Device 13-1, controller 13-2, second gas blower 15, second air volume regulating valve 16 and the second gas meter 17,
Described water inlet pipe 1-1 is connected with An/O dephosphorization organic matter removal reactor 1, be provided with the first speed-adjustable stir device 1-2 in anaerobic zone 1-8 in An/O dephosphorization organic matter removal reactor 1, the anaerobic zone 1-8 in An/O dephosphorization organic matter removal reactor 1 is connected with the aerobic zone 1-9 in An/O dephosphorization organic matter removal reactor 1 by the first opening 1-10; Be provided with the first corundum aeration head 1-3 in aerobic zone 1-9 in An/O dephosphorization organic matter removal reactor 1, the first corundum aeration head 1-3 is connected with the first gas blower 1-6 with the first air volume regulating valve 1-5 by the first gas meter 1-4; Aerobic zone 1-9 in An/O dephosphorization organic matter removal reactor 1 is connected with radical sedimentation basin 2 by the first rising pipe 1-7, one end of mud return line 2-4 is connected with radical sedimentation basin 2, the other end of mud return line 2-4 is connected with water inlet pipe 1-1, and the pipeline of mud return line 2-4 arranges sludge reflux pump 2-1; Excess sludge discharge pipe 2-5 is connected with mud return line 2-4, and the pipeline of excess sludge discharge pipe 2-5 arranges residual sludge pump 2-2;
Radical sedimentation basin 2 is connected with one end of collection distributing well 3 by the second rising pipe 2-3, always the intake inlet end of gate valve 5 of the collection the other end of distributing well 3 and SBR self-supported denitrification reactor is connected, and SBR self-supported denitrification reactor is always intake, gate valve 5 is arranged on the pipeline of SBR self-supported denitrification reactor water inlet pipe 4, always the intake exit end of gate valve 5 of SBR self-supported denitrification reactor is intake with a SBR self-supported denitrification reactor gate valve 6-1 respectively, 2nd SBR self-supported denitrification reactor water inlet gate valve 7-1, Three S's BR self-supported denitrification reactor water inlet gate valve 8-1 is connected with the inlet end of the 4th SBR self-supported denitrification reactor water inlet gate valve 9-1, the exit end of the one SBR self-supported denitrification reactor water inlet gate valve 6-1 is connected with a SBR self-supported denitrification reactor 6, the exit end of the 2nd SBR self-supported denitrification reactor water inlet gate valve 7-1 is connected with the 2nd SBR self-supported denitrification reactor 7, the exit end of Three S's BR self-supported denitrification reactor water inlet gate valve 8-1 is connected with Three S's BR self-supported denitrification reactor 8, the exit end of the 4th SBR self-supported denitrification reactor water inlet gate valve 9-1 is connected with the 4th SBR self-supported denitrification reactor 9,
The second speed-adjustable stir device 10, fixed ball filler 11 and the second corundum aeration head 12 of wandering about as a refugee is respectively equipped with in one SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9; On-Line Monitor Device 13-1 is separately positioned on a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 internal upper part, the output terminal of on-Line Monitor Device 13-1 is connected with the input terminus of controller 13-2, controller 13-2 output terminal be connected with the input terminus of master control system 13 with the second gas blower 15, second air volume regulating valve 16 respectively; Second gas blower 15, second air volume regulating valve 16 is connected with the second corundum aeration head 12 in the 4th SBR self-supported denitrification reactor 9 with a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 respectively with the second gas meter 17;
One end of first water decanter 6-5 is arranged on the underwater of a SBR self-supported denitrification reactor 6, and the other end of the first water decanter 6-5 is connected with the feed-water end of the 3rd rising pipe 6-6; One end of second water decanter 7-5 is arranged on the underwater of the 2nd SBR self-supported denitrification reactor 7, and the other end of the second water decanter 7-5 is connected with the feed-water end of the 4th rising pipe 7-6; One end of 3rd water decanter 8-5 is arranged on the underwater of Three S's BR self-supported denitrification reactor 8, and the other end of the 3rd water decanter 8-5 is connected with the feed-water end of the 5th rising pipe 8-6; One end of 4th water decanter 9-5 is arranged on the underwater of the 4th SBR self-supported denitrification reactor 9, and the other end of the 4th water decanter 9-5 is connected with the feed-water end of the 6th rising pipe 9-6; The feed-water end of rising pipe 14 is connected with the water side of the 6th rising pipe 9-6 with the 3rd rising pipe 6-6, the 4th rising pipe 7-6, the 5th rising pipe 8-6 respectively.
Utilize the method for a kind of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant Treating Municipal Sewage, specifically complete according to the following steps:
One, starter gear: inoculate municipal wastewater treatment plant secondary sludge in An/O dephosphorization organic matter removal reactor 1, makes the sludge concentration in An/O dephosphorization organic matter removal reactor 1 reach 4000mg/L; In a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9, all inoculate the short distance nitration mud of steady running, make the sludge concentration in a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 all reach 4800mg/L; Be filled into respectively by fixed ball filler 11 of wandering about as a refugee in a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9, the filling proportion of filler is 5% of reactor volume;
Two, operating parameter is regulated: regulate that the dissolved oxygen concentration in the aerobic zone 1-9 in An/O dephosphorization organic matter removal reactor 1 is 3mg/L, dissolved oxygen concentration in a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 is all adjusted to 0.2mg/L; Regulate flooding velocity, the water conservancy residence time making the anaerobic zone 1-8 in An/O dephosphorization organic matter removal reactor 1 is 0.6h, the water conservancy residence time of the aerobic zone 1-9 in An/O dephosphorization organic matter removal reactor 1 is 1.8h, the water conservancy residence time of radical sedimentation basin 2 is 1.2h, and the water conservancy residence time of a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8, the 4th SBR self-supported denitrification reactor 9 is 8.5h;
Three, reflux ratio parameter is regulated: open sludge reflux pump 2-1 and residual sludge pump 2-2, the return sludge ratio that conditioning of mud return line 2-4 is back to water inlet pipe 1-1 is 80%;
Four, municipal effluent enters into the anaerobic zone 1-8 of An/O dephosphorization organic matter removal reactor 1 from water inlet pipe 1-1, municipal effluent carries out anaerobic reaction under the agitation condition of the first speed-adjustable stir device 1-2, then current enter into the aerobic zone 1-9 of An/O dephosphorization organic matter removal reactor 1 by the first opening 1-10 plug-flow, react under aeration, then enter into radical sedimentation basin 2 by the first rising pipe 1-7 and carry out mud-water separation, municipal effluent enters into collection distributing well 3 by the second rising pipe 2-3; A mud part in radical sedimentation basin 2 is back to water inlet pipe 1-1 by mud return line 2-4, and another part is got rid of through excess sludge discharge pipe 2-5;
Water in collection distributing well 3 enters into a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 successively and is further processed, and water inlet order is as follows:
First open SBR self-supported denitrification reactor always to intake gate valve 5 and SBR self-supported denitrification reactor water inlet gate valve 6-1, the water in collection distributing well 3 enters into a SBR self-supported denitrification reactor 6 by always intake gate valve 5 and SBR self-supported denitrification reactor water inlet gate valve 6-1 of SBR self-supported denitrification reactor water inlet pipe 4, SBR self-supported denitrification reactor, when to enter into SBR self-supported denitrification reactor 6 time be 2h to the water in distributing well 3, close a SBR self-supported denitrification reactor water inlet gate valve 6-1, open the 2nd SBR self-supported denitrification reactor water inlet gate valve 7-1, when to enter into SBR self-supported denitrification reactor 6 time be 2h to the water in distributing well 3, close the 2nd SBR self-supported denitrification reactor water inlet gate valve 7-1, open Three S's BR self-supported denitrification reactor water inlet gate valve 8-1, when to enter into SBR self-supported denitrification reactor 6 time be 2h to the water in distributing well 3, close Three S's BR self-supported denitrification reactor water inlet gate valve 8-1, open the 4th SBR self-supported denitrification reactor water inlet gate valve 9-1,
Open the second gas blower 15, water in one SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 reacts under aeration, and on-Line Monitor Device 13-1 detects pH, DO, NH in SBR self-supported denitrification reactor 6 a 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 respectively 4 +-N, NO 2 --N and NO 3 -the concentration of-N, if the NH in a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 4 +-N concentration is lower than 3mg/L or NH 4 +-N concentration is less than NO 2 --N concentration and NO 3 -during-N concentration sum, master control system 13 is respectively to the controller 13-2 output order in a SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9, controller 13-2 controls the second gas blower 15, stop aeration, then open the second speed-adjustable stir device 10 and carry out mix and blend; The water reaction times in one SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 reaches 4h ~ 4.5h, closes the second gas blower 15 or the second speed-adjustable stir device 10; Water in one SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 enters precipitate phase respectively, after precipitation 1h, open and adjust the first water decanter 6-5, the second water decanter 7-5, the first water decanter 8-5 and the first water decanter 9-5 carries out draining to the depth of water 1/2 place; Water after a SBR self-supported denitrification reactor 6 processes is discharged by the first water decanter 6-5, the 3rd rising pipe 6-6 and rising pipe 14, obtains the water outlet after processing; Water after the 2nd SBR self-supported denitrification reactor 7 processes is discharged through the second water decanter 7-5, the 4th rising pipe 7-6 and rising pipe 14, obtains the water outlet after processing; Water after Three S's BR self-supported denitrification reactor 8 processes is discharged through the 3rd water decanter 8-5, the 5th rising pipe 8-6 and rising pipe 14, obtains the water outlet after processing; Water after the 4th SBR self-supported denitrification reactor 9 processes is discharged through the 4th water decanter 9-5, the 6th rising pipe 9-6 and rising pipe 14, obtains the water outlet after processing.
The ball of wandering about as a refugee of the fixed ball filler 11 of wandering about as a refugee described in this testing sequence one is built with the biofilm packing in high ammonia nitrogen anaerobic ammonia oxidation reactor;
An/O dephosphorization organic matter removal reactor 1 described in this testing sequence one is the waste disposal plant of pulling flow type; One SBR self-supported denitrification reactor 6, the 2nd SBR self-supported denitrification reactor 7, Three S's BR self-supported denitrification reactor 8 and the 4th SBR self-supported denitrification reactor 9 are step waste disposal plant;
Sludge age in An/O dephosphorization organic matter removal reactor 1 described in this try rapid is 4d;
In municipal effluent described in this testing sequence four, the concentration of COD is 160mg/L ~ 250mg/L, NH 4 +the concentration of-N is 38.4mg/L ~ 50.7mg/L, NO 2 -the concentration of N≤0.25mg/L, NO 3 -concentration≤the 1mg/L of-N;
In water outlet after this test process, the concentration of COD is 30mg/L ~ 50mg/L, NH 4 +the concentration of-N is 0.96mg/L ~ 9mg/L, NO 2the concentration of-N is 0mg/L ~ 1.69mg/L, NO 3 -the concentration of N is 1.4mg/L ~ 6.3mg/L, and total nitrogen concentration is lower than 15mg/L.

Claims (10)

1. a Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant, is characterized in that a kind of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant comprises An/O dephosphorization organic matter removal reactor (1), water inlet pipe (1-1), first speed-adjustable stir device (1-2), first corundum aeration head (1-3), first gas meter (1-4), first air volume regulating valve (1-5), first gas blower (1-6), first rising pipe (1-7), radical sedimentation basin (2), sludge reflux pump (2-1), residual sludge pump (2-2), second rising pipe (2-3), mud return line (2-4), excess sludge discharge pipe (2-5), collection distributing well (3), SBR self-supported denitrification reactor water inlet pipe (4), SBR self-supported denitrification reactor is always intake gate valve (5), one SBR self-supported denitrification reactor (6), 2nd SBR self-supported denitrification reactor (7), Three S's BR self-supported denitrification reactor (8), 4th SBR self-supported denitrification reactor (9), second speed-adjustable stir device (10), fixed ball filler (11) of wandering about as a refugee, second corundum aeration head (12), master control system (13), rising pipe (14), on-Line Monitor Device (13-1), controller (13-2), second gas blower (15), second air volume regulating valve (16) and the second gas meter (17),
Described water inlet pipe (1-1) is connected with An/O dephosphorization organic matter removal reactor (1), be provided with the first speed-adjustable stir device (1-2) in anaerobic zone (1-8) in An/O dephosphorization organic matter removal reactor (1), the anaerobic zone (1-8) in An/O dephosphorization organic matter removal reactor (1) is connected with the aerobic zone (1-9) in An/O dephosphorization organic matter removal reactor (1) by the first opening (1-10); Be provided with the first corundum aeration head (1-3) in aerobic zone (1-9) in An/O dephosphorization organic matter removal reactor (1), the first corundum aeration head (1-3) is connected with the first gas blower (1-6) with the first air volume regulating valve (1-5) by the first gas meter (1-4); Aerobic zone (1-9) in An/O dephosphorization organic matter removal reactor (1) is connected with radical sedimentation basin (2) by the first rising pipe (1-7), one end of mud return line (2-4) is connected with radical sedimentation basin (2), the other end of mud return line (2-4) is connected with water inlet pipe (1-1), and the pipeline of mud return line (2-4) arranges sludge reflux pump (2-1); Excess sludge discharge pipe (2-5) is connected with mud return line (2-4), and the pipeline of excess sludge discharge pipe (2-5) arranges residual sludge pump (2-2);
Radical sedimentation basin (2) is connected by the second rising pipe (2-3) one end with collection distributing well (3), always the intake inlet end of gate valve (5) of the other end of collection distributing well (3) and SBR self-supported denitrification reactor is connected, and SBR self-supported denitrification reactor is always intake, gate valve (5) is arranged on the pipeline of SBR self-supported denitrification reactor water inlet pipe (4), always the intake exit end of gate valve (5) of SBR self-supported denitrification reactor is intake with a SBR self-supported denitrification reactor gate valve (6-1) respectively, 2nd SBR self-supported denitrification reactor water inlet gate valve (7-1), Three S's BR self-supported denitrification reactor water inlet gate valve (8-1) is connected with the inlet end of the 4th SBR self-supported denitrification reactor water inlet gate valve (9-1), the exit end of the one SBR self-supported denitrification reactor water inlet gate valve (6-1) is connected with a SBR self-supported denitrification reactor (6), the exit end of the 2nd SBR self-supported denitrification reactor water inlet gate valve (7-1) is connected with the 2nd SBR self-supported denitrification reactor (7), the exit end of Three S's BR self-supported denitrification reactor water inlet gate valve (8-1) is connected with Three S's BR self-supported denitrification reactor (8), the exit end of the 4th SBR self-supported denitrification reactor water inlet gate valve (9-1) is connected with the 4th SBR self-supported denitrification reactor (9),
The second speed-adjustable stir device (10), fixed ball filler (11) and the second corundum aeration head (12) of wandering about as a refugee is respectively equipped with in one SBR self-supported denitrification reactor (6), the 2nd SBR self-supported denitrification reactor (7), Three S's BR self-supported denitrification reactor (8) and the 4th SBR self-supported denitrification reactor (9); On-Line Monitor Device (13-1) is separately positioned on a SBR self-supported denitrification reactor (6), the 2nd SBR self-supported denitrification reactor (7), Three S's BR self-supported denitrification reactor (8) and the 4th SBR self-supported denitrification reactor (9) internal upper part, the output terminal of on-Line Monitor Device (13-1) is connected with the input terminus of controller (13-2), controller (13-2) output terminal be connected with the input terminus of master control system (13) with the second gas blower (15), the second air volume regulating valve (16) respectively; Second gas blower (15), the second air volume regulating valve (16) and the second gas meter (17) are connected with the second corundum aeration head (12) in the 4th SBR self-supported denitrification reactor (9) with a SBR self-supported denitrification reactor (6), the 2nd SBR self-supported denitrification reactor (7), Three S's BR self-supported denitrification reactor (8) respectively;
One end of first water decanter (6-5) is arranged on the underwater of a SBR self-supported denitrification reactor (6), and the other end of the first water decanter (6-5) is connected with the feed-water end of the 3rd rising pipe (6-6); One end of second water decanter (7-5) is arranged on the underwater of the 2nd SBR self-supported denitrification reactor (7), and the other end of the second water decanter (7-5) is connected with the feed-water end of the 4th rising pipe (7-6); One end of 3rd water decanter (8-5) is arranged on the underwater of Three S's BR self-supported denitrification reactor (8), and the other end of the 3rd water decanter (8-5) is connected with the feed-water end of the 5th rising pipe (8-6); One end of 4th water decanter (9-5) is arranged on the underwater of the 4th SBR self-supported denitrification reactor (9), and the other end of the 4th water decanter (9-5) is connected with the feed-water end of the 6th rising pipe (9-6); The feed-water end of rising pipe (14) is connected with the water side of the 6th rising pipe (9-6) with the 3rd rising pipe (6-6), the 4th rising pipe (7-6), the 5th rising pipe (8-6) respectively.
2. a kind of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant according to claim 1, is characterized in that the ball of wandering about as a refugee of fixed ball filler (11) of wandering about as a refugee is built with the biofilm packing in high ammonia nitrogen anaerobic ammonia oxidation reactor.
3. a kind of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant according to claim 1, is characterized in that An/O dephosphorization organic matter removal reactor (1) is the waste disposal plant of pulling flow type; One SBR self-supported denitrification reactor (6), the 2nd SBR self-supported denitrification reactor (7), Three S's BR self-supported denitrification reactor (8) and the 4th SBR self-supported denitrification reactor (9) are step waste disposal plant.
4. utilize the method for a kind of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant Treating Municipal Sewage, it is characterized in that utilizing the method for a kind of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant Treating Municipal Sewage specifically to complete according to the following steps:
One, starter gear: inoculation municipal wastewater treatment plant secondary sludge in An/O dephosphorization organic matter removal reactor (1), makes the sludge concentration in An/O dephosphorization organic matter removal reactor (1) reach 3000mg/L ~ 5000mg/L; In a SBR self-supported denitrification reactor (6), the 2nd SBR self-supported denitrification reactor (7), Three S's BR self-supported denitrification reactor (8) and the 4th SBR self-supported denitrification reactor (9), all inoculate the short distance nitration mud of steady running, make the sludge concentration in a SBR self-supported denitrification reactor (6), the 2nd SBR self-supported denitrification reactor (7), Three S's BR self-supported denitrification reactor (8) and the 4th SBR self-supported denitrification reactor (9) all reach 3000mg/L ~ 5000mg/L; Be filled into respectively in a SBR self-supported denitrification reactor (6), the 2nd SBR self-supported denitrification reactor (7), Three S's BR self-supported denitrification reactor (8) and the 4th SBR self-supported denitrification reactor (9) by fixed ball filler (11) of wandering about as a refugee, the filling proportion of filler is 5% ~ 10% of reactor volume;
Two, operating parameter is regulated: regulate that the dissolved oxygen concentration in the aerobic zone (1-9) in An/O dephosphorization organic matter removal reactor (1) is 2mg/L ~ 3mg/L, dissolved oxygen concentration in a SBR self-supported denitrification reactor (6), the 2nd SBR self-supported denitrification reactor (7), Three S's BR self-supported denitrification reactor (8) and the 4th SBR self-supported denitrification reactor (9) is all adjusted to 0.2mg/L ~ 0.3mg/L, regulate flooding velocity, the water conservancy residence time making the anaerobic zone (1-8) in An/O dephosphorization organic matter removal reactor (1) is 0.5h ~ 1.0h, the water conservancy residence time of the aerobic zone (1-9) in An/O dephosphorization organic matter removal reactor (1) is 1.5h ~ 2.5h, the water conservancy residence time of radical sedimentation basin (2) is 1h ~ 1.5h, one SBR self-supported denitrification reactor (6), 2nd SBR self-supported denitrification reactor (7), Three S's BR self-supported denitrification reactor (8), the water conservancy residence time of the 4th SBR self-supported denitrification reactor (9) is 8h ~ 9h,
Three, reflux ratio parameter is regulated: open sludge reflux pump (2-1) and residual sludge pump (2-2), the return sludge ratio that conditioning of mud return line (2-4) is back to water inlet pipe (1-1) is 50% ~ 100%;
Four, municipal effluent enters into the anaerobic zone (1-8) of An/O dephosphorization organic matter removal reactor (1) from water inlet pipe (1-1), municipal effluent carries out anaerobic reaction under the agitation condition of the first speed-adjustable stir device (1-2), then current enter into the aerobic zone (1-9) of An/O dephosphorization organic matter removal reactor (1) by the first opening (1-10) plug-flow, react under aeration, then enter into radical sedimentation basin (2) by the first rising pipe (1-7) and carry out mud-water separation, municipal effluent enters into collection distributing well (3) by the second rising pipe (2-3), a mud part in radical sedimentation basin (2) is back to water inlet pipe (1-1) by mud return line (2-4), and another part is got rid of through excess sludge discharge pipe (2-5),
Water in collection distributing well (3) enters into a SBR self-supported denitrification reactor (6), the 2nd SBR self-supported denitrification reactor (7), Three S's BR self-supported denitrification reactor (8) and the 4th SBR self-supported denitrification reactor (9) successively and is further processed, and water inlet order is as follows:
First open SBR self-supported denitrification reactor always to intake gate valve (5) and SBR self-supported denitrification reactor water inlet gate valve (6-1), the water in collection distributing well (3) enters into a SBR self-supported denitrification reactor (6) by always intake gate valve (5) and SBR self-supported denitrification reactor water inlet gate valve (6-1) of SBR self-supported denitrification reactor water inlet pipe (4), SBR self-supported denitrification reactor, when to enter into SBR self-supported denitrification reactor (6) time be 2h to the water in distributing well (3), close SBR self-supported denitrification reactor water inlet gate valve (6-1), open the 2nd SBR self-supported denitrification reactor water inlet gate valve (7-1), when to enter into SBR self-supported denitrification reactor (6) time be 2h to the water in distributing well (3), close the 2nd SBR self-supported denitrification reactor water inlet gate valve (7-1), open Three S's BR self-supported denitrification reactor water inlet gate valve (8-1), when to enter into SBR self-supported denitrification reactor (6) time be 2h to the water in distributing well (3), close Three S's BR self-supported denitrification reactor water inlet gate valve (8-1), open the 4th SBR self-supported denitrification reactor water inlet gate valve (9-1),
Open the second gas blower (15), water in one SBR self-supported denitrification reactor (6), the 2nd SBR self-supported denitrification reactor (7), Three S's BR self-supported denitrification reactor (8) and the 4th SBR self-supported denitrification reactor (9) reacts under aeration, and on-Line Monitor Device (13-1) detects pH, DO, NH in a SBR self-supported denitrification reactor (6) the 2nd SBR self-supported denitrification reactor (7), Three S's BR self-supported denitrification reactor (8) and the 4th SBR self-supported denitrification reactor (9) respectively 4 +-N, NO 2 --N and NO 3 -the concentration of-N, if the NH in a SBR self-supported denitrification reactor (6), the 2nd SBR self-supported denitrification reactor (7), Three S's BR self-supported denitrification reactor (8) and the 4th SBR self-supported denitrification reactor (9) 4 +-N concentration is lower than 3mg/L or NH 4 +-N concentration is less than NO 2 --N concentration and NO 3 -during-N concentration sum, master control system (13) is respectively to controller (13-2) output order in a SBR self-supported denitrification reactor (6), the 2nd SBR self-supported denitrification reactor (7), Three S's BR self-supported denitrification reactor (8) and the 4th SBR self-supported denitrification reactor (9), controller (13-2) controls the second gas blower (15), stop aeration, then open the second speed-adjustable stir device (10) and carry out mix and blend; The water reaction times in one SBR self-supported denitrification reactor (6), the 2nd SBR self-supported denitrification reactor (7), Three S's BR self-supported denitrification reactor (8) and the 4th SBR self-supported denitrification reactor (9) reaches 4h ~ 4.5h, closes the second gas blower (15) or the second speed-adjustable stir device (10); Water in one SBR self-supported denitrification reactor (6), the 2nd SBR self-supported denitrification reactor (7), Three S's BR self-supported denitrification reactor (8) and the 4th SBR self-supported denitrification reactor (9) enters precipitate phase respectively, after precipitation 1h, open and adjust the first water decanter (6-5), the second water decanter (7-5), the first water decanter (8-5) and the first water decanter (9-5) carry out draining to the depth of water 1/2 place; Water after SBR self-supported denitrification reactor (6) process is discharged by the first water decanter (6-5), the 3rd rising pipe (6-6) and rising pipe (14), obtains the water outlet after processing; Water after the 2nd SBR self-supported denitrification reactor (7) process is discharged through the second water decanter (7-5), the 4th rising pipe (7-6) and rising pipe (14), obtains the water outlet after processing; Water after Three S's BR self-supported denitrification reactor (8) process is discharged through the 3rd water decanter (8-5), the 5th rising pipe (8-6) and rising pipe (14), obtains the water outlet after processing; Water after the 4th SBR self-supported denitrification reactor (9) process is discharged through the 4th water decanter (9-5), the 6th rising pipe (9-6) and rising pipe (14), obtains the water outlet after processing.
5. the method utilizing a kind of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant Treating Municipal Sewage according to claim 4, is characterized in that the ball of wandering about as a refugee of fixed ball filler (11) of wandering about as a refugee is built with the biofilm packing in existing high ammonia nitrogen anaerobic ammonia oxidation reactor.
6. the method utilizing a kind of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant Treating Municipal Sewage according to claim 4, is characterized in that An/O dephosphorization organic matter removal reactor (1) described in step one is the waste disposal plant of pulling flow type; One SBR self-supported denitrification reactor (6), the 2nd SBR self-supported denitrification reactor (7), Three S's BR self-supported denitrification reactor (8) and the 4th SBR self-supported denitrification reactor (9) are step waste disposal plant.
7. the method utilizing a kind of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant Treating Municipal Sewage according to claim 4, is characterized in that the sludge age in An/O dephosphorization organic matter removal reactor (1) described in step one is 3d ~ 5d.
8. the method utilizing a kind of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant Treating Municipal Sewage according to claim 4, it is characterized in that in An/O dephosphorization organic matter removal reactor (1), inoculating municipal wastewater treatment plant secondary sludge in step one, make the sludge concentration in An/O dephosphorization organic matter removal reactor (1) reach 4000mg/L.
9. the method utilizing a kind of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant Treating Municipal Sewage according to claim 4, it is characterized in that in step one at a SBR self-supported denitrification reactor (6), 2nd SBR self-supported denitrification reactor (7), the short distance nitration mud of steady running is all inoculated in Three S's BR self-supported denitrification reactor (8) and the 4th SBR self-supported denitrification reactor (9), make a SBR self-supported denitrification reactor (6), 2nd SBR self-supported denitrification reactor (7), sludge concentration in Three S's BR self-supported denitrification reactor (8) and the 4th SBR self-supported denitrification reactor (9) all reaches 4800mg/L, be filled into respectively in a SBR self-supported denitrification reactor (6), the 2nd SBR self-supported denitrification reactor (7), Three S's BR self-supported denitrification reactor (8) and the 4th SBR self-supported denitrification reactor (9) by fixed ball filler (11) of wandering about as a refugee, the filling proportion of filler is 5% ~ 10% of reactor volume.
10. the method utilizing a kind of Continuous Flow An/O dephosphorization coupling SBR autotrophic denitrification waste disposal plant Treating Municipal Sewage according to claim 4, is characterized in that the concentration of COD in the municipal effluent described in step 4 is 160mg/L ~ 250mg/L, NH 4 +the concentration of-N is 38.4mg/L ~ 50.7mg/L, NO 2 -the concentration of-N≤0.25mg/L, NO 3 -concentration≤the 1mg/L of-N.
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