CN102531174A - Treatment device and method for reducing amount of sludge of improved sewage factory and performing low-carbon-consumption denitrification - Google Patents
Treatment device and method for reducing amount of sludge of improved sewage factory and performing low-carbon-consumption denitrification Download PDFInfo
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Abstract
The invention provides a treatment device and method for reducing the amount of sludge of an improved sewage factory and performing low-carbon-consumption denitrification. A raw water tank in the treatment device is connected with water injection ends of an A/O nitration reactor, a secondary sedimentation tank, a middle water tank and an anaerobic fermentation synchronous low-carbon denitrification reactor sequentially; and the sludge discharging end of the secondary sedimentation tank is connected with the sludge injection ends of the A/O nitration reactor and a sludge storage tank respectively. The treatment method comprises the following steps: the raw sewage firstly enters the A/O nitration reactor to be subjected to short-cut nitrification, and then enters the anaerobic fermentation synchronous low-carbon denitrification reactor together with residual sludge, so that fermentation for residual sludge, heterotrophic denitrification for nitration liquid and autotrophic nitrogen removal of anaerobic ammonia oxidation are realized synchronously; the residual sludge enters the anaerobic fermentation synchronous low-carbon denitrification reactor to be subjected to anaerobic fermentation and reduction. The treatment device and method are suitable for high ammonia-nitrogen sewage treatment; and furthermore, deep low-carbon-consumption denitrification for the sewage is realized, and the yield of the residual sludge in a sewage biological denitrification system is reduced.
Description
Technical field
The present invention relates to sewage sludge biologic treating technique field, the treatment unit and the method for especially a kind of enhanced sewage factory's mud decrement and the denitrogenation of low-carbon (LC) consumption.
Background technology
China's overwhelming majority municipal effluent; There is the problem of carbon source wretched insufficiency in the trade effluent of high-concentration ammonia-nitrogen particularly, and the carbon source of himself can't satisfy the demand of denitrogenation at all; And make the carbon source deficiency become biological sewage treatment total nitrogen key reason not up to standard; Domestic existing sewage biological treatment system often comes the supplementary carbon source demand through adding outer carbon sources such as methyl alcohol, and this had both increased processing cost, has aggravated the CO of water factory again
2Discharging and excess sludge production.
In addition; Because the excess sludge production of sewage biological treatment system is big; Processing cost is high, and for a typical urban sewage treatment system, its sludge treatment cost accounts for 40% of total cost greatly; And the treatment and disposal of excess sludge causes the secondary of nutritive element to discharge easily, causes secondary pollution easily.Therefore, the excess sludge production that how to reduce urban sewage treatment system also is an important topic.
Summary of the invention
The object of the present invention is to provide a kind ofly when realizing sewage deep low-carbon (LC) consumption denitrogenation processing, can also reduce the enhanced sewage factory mud decrement of bio-denitrifying sewage system excess sludge production and the treatment unit and the method for low-carbon (LC) consumption denitrogenation.
For realizing above-mentioned purpose; The present invention provides the treatment unit of a kind of enhanced sewage factory's mud decrement and the denitrogenation of low-carbon (LC) consumption; Comprise former pond, A/O nitrator, second pond, intermediate pool and storage basin; The discharge end of said A/O nitrator is connected with the injection side of said second pond; The spoil disposal end of said second pond is connected with the notes mud end of said A/O nitrator and said storage basin respectively, also comprises the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting, and the injection side of the synchronous low-carbon nitrogen reactor drum of said anaerobically fermenting is connected with the water side of said intermediate pool and the spoil disposal end of said storage basin respectively; The water side in said former pond is connected with the water filling end of said A/O nitrator, and the water side of said second pond is connected with the water filling end of said intermediate pool.
In said A/O nitrator, be provided with the lattice chamber, oxygen-starved area and the aerobic zone lattice chamber that are connected; Lattice chamber, said oxygen-starved area is arranged on the front end of said aerobic zone lattice chamber; In lattice chamber, said oxygen-starved area, be provided with whipping appts, in said aerobic zone lattice chamber, be provided with aerating system.
The water side of said A/O nitrator connects the water filling end of said second pond through the A/O rising pipe; The spoil disposal end of said second pond is connected with the injection side of said A/O nitrator and the notes mud end of said storage basin respectively through sludge reflux pump and residual sludge pump, and the water side of said second pond is connected with the injection side of said intermediate pool through the second pond rising pipe.
The water side of said intermediate pool is connected with the water filling end of the synchronous low-carbon nitrogen reactor drum of said anaerobically fermenting through intake pump, and said intermediate pool is injected the synchronous low-carbon nitrogen reactor drum of said anaerobically fermenting through intake pump with nitrification liquid.
The spoil disposal end of said storage basin is connected with the notes mud end of the synchronous low-carbon nitrogen reactor drum of said anaerobically fermenting through advancing dredge pump, and said storage basin injects the synchronous low-carbon nitrogen reactor drum of said anaerobically fermenting through advancing dredge pump with excess sludge.
Top and bottom at the synchronous low-carbon nitrogen reactor drum of said anaerobically fermenting is respectively arranged with triphase separator and water-distributing device; Said triphase separator is connected with outlet sump through rising pipe; Lower end at the synchronous low-carbon nitrogen reactor drum of said anaerobically fermenting also is provided with mud valve, also establishes the internal reflux pump in the outside of the synchronous low-carbon nitrogen reactor drum of said anaerobically fermenting.
The present invention also provides the treatment process of a kind of enhanced sewage factory's mud decrement and the denitrogenation of low-carbon (LC) consumption simultaneously, may further comprise the steps:
(1) in former pond and storage basin, fills with high-concentration ammonia-nitrogen sewage and excess sludge respectively;
(2) high-concentration ammonia-nitrogen sewage is mixed the formation mixed solution with seed sludge, and inject the A/O nitrator and carry out the short distance nitration processing;
(3) nitrification liquid injects the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting through intermediate pool;
(4) in the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting, nitrification liquid and the excess sludge through the storage basin injection are carried out triple couplings processing of Anammox, denitrification and sludge fermentation;
(5) handling back water outlet and mud discharges through rising pipe and mud valve respectively.
In step (2); According to ammonia oxidation rate and short distance accumulation rate pilot-gas regulating valve to regulate the dissolved oxygen concentration of aerobic section in the A/O nitrator; To regulate return sludge ratio, require to regulate the sludge volume of residual sludge pump according to MLSS concentration control sludge reflux pump in the A/O nitrator with control A/O nitrification according to A/O nitrator sludge age.
Three sub-steps that in step (4), also comprise synchronous low-carbon nitrogen reactor start-up of anaerobically fermenting and domestication process:
(4.1) NH is adopted in the water inlet of the synchronous low-carbon nitrogen reactor drum of initial start stage anaerobically fermenting
4 +-N: NO
2-N is 1: 1.3 artificial distribution, and adopts the method that increases the nitrogen load one by one to accomplish the Anammox domestication of the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting is handled;
(4.2) when system's Anammox removal nitrogen load reaches desired value, increase NO among the artificial distribution
2-N ratio is to NH
4 +-N: NO
2-N is 1: 1.9, and with a certain amount of NO
3 --N drops in the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting, adds glucose simultaneously as denitrifying carbon source, to realize Anammox and denitrifying coupling;
(4.3) proportion of glucose during attenuating is intake gradually, the input amount of increase excess sludge replaces glucose as denitrifying carbon source with excess sludge, to realize triple couplings of Anammox, denitrification and sludge fermentation.
In step (4); According to upflow velocity control internal reflux pump in the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting; To regulate internal reflux ratio, regulate into dredge pump and mud valve according to the middle nitrate salt and the nitrite concentration of water outlet, with the sludge age in the synchronous low-carbon nitrogen reactor drum of adjustment anaerobically fermenting.
Know-why of the present invention is following:
Sewage at first gets into the A/O nitrator, realizes the short distance nitration to ammonia nitrogen in the sewage through the A/O system; Nitrification liquid gets into the synchronous low-carbon nitrogen of anaerobically fermenting system; This system utilizes the autotrophic denitrification ability of anaerobic ammonia oxidizing bacteria on the one hand, will be from the ammonia nitrogen removal that discharges in the ammonia nitrogen of A/O system and nitrous and the sludge fermentation process, on the other hand; Effect through denitrifying bacteria; The carbon source of utilizing sludge fermentation to produce will be removed with denitrifying form from the nitre nitrogen that produces in the residue nitrite nitrogen of A/O system and nitre nitrogen and the anaerobic ammonium oxidation process; Thereby realize the low-carbon nitrogen of total system, reduced system's excess sludge production simultaneously.Key of the present invention is; Regulation and control through ammonia oxidation rate and short distance accumulation rate in the A/O nitration reaction system; Guarantee in the synchronous low-carbon nitrogen of the anaerobically fermenting system that the nitrous ratio is sufficient or exaggerate; Anammox to guarantee ammonia nitrogen in the total system is removed, and also therefore, keeping of Anammox function also is the key of technology implementation in the synchronous low-carbon nitrogen of the anaerobically fermenting system.
Compared with prior art, the present invention has the following advantages:
1, through short distance nitration, autotrophic denitrification and excess sludge internal carbon source denitrification are combined, realize low-carbon (LC) consumption bio-denitrifying sewage truly, reach and save the sewage water denitrification carbon source and add the purpose with processing cost;
2, can accomplish the minimizing of bio-denitrifying sewage system self residual mud is handled;
3, through the synchronous coupling of Anammox, denitrification and sludge hydrolytic fermentation, improve the sewage sludge processing efficiency greatly, saved processing cost and floor space.
Description of drawings
Fig. 1 is the structure iron of apparatus of the present invention part;
Fig. 2 is the schema of the inventive method part.
Main nomenclature is following:
The former pond of 1-2-A/O nitrator 2.1-A/O intake pump
2.2-whipping appts 2.3-aeration plate 2.4-air compressor machine
2.5-gas flow regulating valve 2.6-A/O rising pipe
3-second pond 3.1-second pond rising pipe 3.2-sludge reflux pump
3.3-residual sludge pump 4-intermediate pool 5-storage basin
The synchronous low-carbon nitrogen reactor drum of 6-anaerobically fermenting 6.1-triphase separator
6.2-water-distributing device 6.3-mud valve 6.4-internal reflux pump
6.5-intake pump 6.6-advances dredge pump 6.7-rising pipe
The 7-outlet sump
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further explain.
As shown in Figure 1; The present invention provides the treatment unit of a kind of enhanced sewage factory's mud decrement and low-carbon (LC) consumption denitrogenation, is made up of former pond 1, A/O nitrator 2, second pond 3, intermediate pool 4, storage basin 5, the synchronous low-carbon nitrogen reactor drum 6 of anaerobically fermenting and outlet sump 7.The water side in former pond 1 is injected A/O nitrator 2 through A/O intake pump 2.1 with the high-concentration ammonia-nitrogen sewage in the former pond.A/O nitrator 2 is the A/O reactor drum of no nitrification liquid internal reflux, is uncovered pond bodily form formula.Form lattice chamber, oxygen-starved area and a plurality of aerobic zone lattice chamber that is connected through dividing plate in the A/O nitrator; Wherein, Lattice chamber, oxygen-starved area is arranged on the front end of a plurality of aerobic zone lattice chamber, and each dividing plate upper edge water (flow) direction is staggered to form the water flowing duct that is used to connect each lattice chamber up and down.In lattice chamber, oxygen-starved area, be provided with whipping appts 2.2; In aerobic zone lattice chamber, be provided with aerating system; This aerating system is made up of with gas flow regulating valve 2.5 aeration plate 2.3, air compressor machine 2.4, and air compressor machine 2.4 is connected with aeration plate 2.3 through gas flow regulating valve 2.5.Wherein, aeration plate 2.3 is arranged on the bottom of aerobic zone lattice chamber, and the quantity of gas flow regulating valve 2.5 and aeration plate 2.3 is all identical with aerobic zone lattice number of chambers amount.The water side of A/O nitrator 2 is through A/O rising pipe 2.6, and the muddy water mixed solution that will pass through after A/O nitrator 2 is handled injects second pond 3.The radical sedimentation basin of water inlet peripheral effluent in the middle of second pond 3 adopts, the spoil disposal end of second pond bottom is connected with the injection side of A/O nitrator 2 through sludge reflux pump 3.2, thereby the spoil disposal of second pond is injected the A/O nitrator.The spoil disposal end of second pond bottom also is connected through the injection side of residual sludge pump 3.3 with storage basin 5, thereby the spoil disposal of second pond is injected storage basin.The water side of second pond 3 is connected with intermediate pool 4 through second pond rising pipe 3.1, thereby intermediate pool 4 is injected in the water outlet of second pond water outlet.The water side of intermediate pool 4 is connected with the injection side of the synchronous low-carbon nitrogen reactor drum 6 of anaerobically fermenting through intake pump 6.5, and the nitrification liquid in the intermediate pool 4 is injected the synchronous low-carbon nitrogen reactor drum 6 of anaerobically fermenting.The spoil disposal end of storage basin 5 is connected with the injection side of the synchronous low-carbon nitrogen reactor drum 6 of anaerobically fermenting through advancing dredge pump 6.6, will store up the synchronous low-carbon nitrogen reactor drum 6 of excess sludge injection anaerobically fermenting in the dredge pump 5.The synchronous low-carbon nitrogen reactor drum 6 of anaerobically fermenting adopts the UASB structural form, and its top is provided with triphase separator 6.1, and the bottom is provided with water-distributing device 6.2, also is provided with the coupled mud valve that connects 6.3 in the lower end of the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting.Internal reflux pump 6.4 is also established in the outside at the synchronous low-carbon nitrogen reactor drum 6 of anaerobically fermenting, through the internal reflux pump to promote upflow velocity in the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting.Outlet sump 7 is injected in water outlet after the water side of the synchronous low-carbon nitrogen reactor drum 6 of anaerobically fermenting will be handled through rising pipe 6.7, and the mud after the spoil disposal end of the synchronous low-carbon nitrogen reactor drum 6 of anaerobically fermenting will be handled through mud valve 6.3 is discharged.
As shown in Figure 2, use the method that enhanced sewage factory's mud decrement and low-carbon (LC) consume the treatment unit of denitrogenation, may further comprise the steps:
(1) in former pond and storage basin, fills with high-concentration ammonia-nitrogen sewage and excess sludge respectively.
Wherein, the mud that in storage basin, injects is the excess sludge that actual sewage factory is discharged.
(2) high-concentration ammonia-nitrogen sewage is mixed the formation mixed solution with seed sludge, inject the A/O nitrator and carry out the short distance nitration processing.
Wherein, The seed sludge of A/O nitrator is from the sewage work's second pond spoil disposal that possesses denitrification functions; With seed sludge with mix the mixed solution that forms about 2000-3000mg/L by the high-concentration ammonia-nitrogen sewage that injects in the former pond, and add respectively to A/O nitrator and second pond.At first, open whipping appts, air compressor machine and gas flow regulating valve in the A/O nitrator, the DO concentration in the A/O nitrator is controlled between the 0.5-1mg/L.Then, open the A/O intake pump and begin water filling in the A/O nitrator is started sludge reflux pump and residual sludge pump simultaneously, to start A/O short distance nitration treatment system.
In addition, in step (2), according to ammonia oxidation rate and the short distance accumulation rate set, the pilot-gas regulating valve is to regulate aerobic section dissolved oxygen concentration in the A/O nitrator; According to MLSS concentration in the A/O nitrator, the control sludge reflux pump is to regulate return sludge ratio; According to the requirement of A/O nitrator sludge age, regulate the sludge volume of residual sludge pump with control A/O nitrification.
(3) after intermediate pool is filled with nitrification liquid, open intake pump, nitrification liquid is injected the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting, meanwhile also open dredge pump and internal reflux pump.
(4) in the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting, nitrification liquid and the excess sludge that injects through storage basin are carried out triple couplings of Anammox, denitrification and sludge fermentation.
In step (4), control the internal reflux pump to regulate internal reflux ratio according to upflow velocity in the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting; Meanwhile, regulate into dredge pump and mud valve, with the sludge age in the synchronous low-carbon nitrogen reactor drum of adjustment anaerobically fermenting according to the middle nitrate salt and the nitrite concentration of the water outlet of the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting.
Three sub-steps that in step (4), comprise synchronous low-carbon nitrogen reactor start-up of anaerobically fermenting and domestication process: the unloading phase of (4.1) Anammox: NH is adopted in the water inlet of the synchronous low-carbon nitrogen reactor drum of initial start stage anaerobically fermenting
4 +-N: NO
2-N is 1: 1.3 artificial distribution, and adopts the method that increases the nitrogen load one by one to accomplish the Anammox domestication of the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting is handled;
(4.2) unloading phase that Anammox and denitrification being coupled: when system's Anammox removal nitrogen load reaches desired value, increase NO among the artificial distribution
2-N ratio is to NH
4 +-N: NO
2-N is 1: 1.9, and with a certain amount of NO
3 --N drops in the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting, adds glucose simultaneously as denitrifying carbon source, to realize Anammox and denitrifying coupling;
(4.3) the coupling stage of Anammox, denitrification and sludge fermentation: the proportion that lowers glucose in the water inlet gradually; Increase the input of excess sludge; Replace glucose as denitrifying carbon source with excess sludge, to realize triple couplings of Anammox, denitrification and sludge fermentation.
(5) discharge through rising pipe and mud valve respectively through water outlet after the synchronous low-carbon nitrogen reactor for treatment of anaerobically fermenting and mud.
Concrete experiment case is following:
Concrete experimental water adopts certain sewage plant sludge Digestive system (pH=6.9-7.5, SCOD=170-220mg/L, TCOD=210-300mg/L, NH
4 +-N=260-330mg/L, NO
2-N and NO
3 --N is all below detectability), C/N is 0.52-0.85, it is the carbon and nitrogen removal SBR pilot test system of process object that the excess sludge of startup and domestication is taken from real life sewage.Used A/O nitrator useful volume is 9L, is divided into lattice chambers 9, and first lattice are the anoxia stirring district; All the other are aerobic zone, and each lattice chamber is connected by the staggered up and down water flowing duct that is arranged on along water (flow) direction on each dividing plate, and its total hrt is 9h; Anoxic time 1h wherein, aerobic time 8h; The useful volume of the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting is 3.5L, and hydraulic detention time is 3.5h.
Concrete operation process is following:
1, in former pond and storage basin, fills with high-concentration ammonia-nitrogen sewage and excess sludge respectively.
2, the A/O nitrator carries out the short distance nitration processing: A/O nitrator seed sludge is the sewage work's second pond spoil disposal that possesses denitrification functions; The high-concentration ammonia-nitrogen sewage that injects in seed sludge and the former pond is mixed the mixed solution that forms 2500mg/L, inject A/O nitrator and second pond.Open whipping appts, air compressor machine and gas flow regulating valve in the A/O nitrator, the DO concentration in the A/O nitrator is controlled between the 0.5-1mg/L.Open the A/O intake pump and begin to start sludge reflux pump and residual sludge pump simultaneously, to start the short distance nitration treating processes of A/O nitrator injecting high-concentration ammonia-nitrogen sewage in the A/O nitrator.
In the short distance nitration treating processes, the ammonia oxidation rate of keeping the A/O water outlet is between 75%-85%, and wherein, nitrous accumulates greater than 95%, and regulates aerobic section dissolved oxygen concentration in the A/O nitrator with this; The SRT that keeps the A/O treatment system simultaneously is about 25d.
3, treat to fill with in the intermediate pool 4 after the nitrification liquid from the discharging of A/O nitrator; Open intake pump, advance dredge pump and internal reflux pump; Nitrification liquid and excess sludge are injected the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting, thus the startup and the domestication of beginning entire treatment flow process.Be about 60d in the control of the synchronous low-carbon nitrogen reactor drum of whole service process anaerobically fermenting sludge age.
4, possess in the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting of denitrification functions nitrification liquid and excess sludge are carried out triple couplings of Anammox, denitrification and sludge fermentation; Its starting period is divided into three phases; Fs is the unloading phase of being Anammox; In 10: 1 ratio seed sludge Digestive tract spoil disposals and Anammox system spoil disposal, adopt NH
4 +-N: NO
2-N carries out the artificial distribution according to 1: 1.3 ratio, and water inlet nitrogen load is one by one from 1.2KgN/m
3D increases to 4.8KgN/m
3D, Anammox domestication 80d; The unloading phase that subordinate phase being Anammox and denitrification coupling, removing the nitrogen load when system's Anammox and reach 4.3KgN/m
3D or when above, it is constant to keep total water inlet nitrogen load, and increases NO in the water distribution
2-N ratio is to NH
4 +-N: NO
2-N is 1: 1.9, simultaneously in the newly-increased NO of 0.5 ratio
3 --N drops into, and adds glucose as denitrifying carbon source, realizes Anammox and denitrifying coupling with this, this stage domestication 50d; Phase III is the coupling stage of Anammox, denitrification and sludge fermentation; On the basis of subordinate phase; Lower glucose proportion in the water inlet gradually, increase the excess sludge input, replace glucose as denitrifying carbon source with excess sludge; The startup and the domestication of the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting are accomplished in the final triple couplings that realize Anammox, denitrification and sludge fermentation.
5, discharge through rising pipe and mud valve respectively through water outlet after the synchronous low-carbon nitrogen reactor for treatment of anaerobically fermenting and mud.
After treatment unit of the present invention and method processing, about the pH value pH7.1 of final outflow water, ammonia nitrogen concentration＜5mg/L, total nitrogen concentration are between 8-15mg/L, and COD value＜40mg/L in the water outlet reduces system's excess sludge production about 35% simultaneously on year-on-year basis.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the treatment unit of enhanced sewage factory mud decrement and low-carbon (LC) consumption denitrogenation; Comprise former pond, A/O nitrator, second pond, intermediate pool and storage basin; The discharge end of said A/O nitrator is connected with the injection side of said second pond; The spoil disposal end of said second pond is connected with the notes mud end of said A/O nitrator and said storage basin respectively; It is characterized in that, also comprise the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting, the injection side of the synchronous low-carbon nitrogen reactor drum of said anaerobically fermenting is connected with the water side of said intermediate pool and the spoil disposal end of said storage basin respectively; The water side in said former pond is connected with the water filling end of said A/O nitrator, and the water side of said second pond is connected with the water filling end of said intermediate pool.
2. the treatment unit of enhanced sewage factory's mud decrement according to claim 1 and the denitrogenation of low-carbon (LC) consumption; It is characterized in that; In said A/O nitrator, be provided with the lattice chamber, oxygen-starved area and the aerobic zone lattice chamber that are connected; Lattice chamber, said oxygen-starved area is arranged on the front end of said aerobic zone lattice chamber, in lattice chamber, said oxygen-starved area, is provided with whipping appts, in said aerobic zone lattice chamber, is provided with aerating system.
3. the treatment unit of enhanced sewage factory's mud decrement according to claim 2 and the denitrogenation of low-carbon (LC) consumption; It is characterized in that; The water side of said A/O nitrator connects the water filling end of said second pond through the A/O rising pipe; The spoil disposal end of said second pond is connected with the injection side of said A/O nitrator and the notes mud end of said storage basin respectively through sludge reflux pump and residual sludge pump, and the water side of said second pond is connected with the water filling end of said intermediate pool through the second pond rising pipe.
4. the treatment unit of enhanced sewage factory's mud decrement according to claim 3 and the denitrogenation of low-carbon (LC) consumption; It is characterized in that; The water side of said intermediate pool is connected with the water filling end of the synchronous low-carbon nitrogen reactor drum of said anaerobically fermenting through intake pump, and said intermediate pool is injected the synchronous low-carbon nitrogen reactor drum of said anaerobically fermenting through intake pump with nitrification liquid.
5. the treatment unit of enhanced sewage factory's mud decrement according to claim 4 and the denitrogenation of low-carbon (LC) consumption; It is characterized in that; The spoil disposal end of said storage basin is connected with the notes mud end of the synchronous low-carbon nitrogen reactor drum of said anaerobically fermenting through advancing dredge pump, and said storage basin injects the synchronous low-carbon nitrogen reactor drum of said anaerobically fermenting through advancing dredge pump with excess sludge.
6. the treatment unit of enhanced sewage factory's mud decrement according to claim 5 and the denitrogenation of low-carbon (LC) consumption; It is characterized in that; Top and bottom at the synchronous low-carbon nitrogen reactor drum of said anaerobically fermenting is respectively arranged with triphase separator and water-distributing device; Said triphase separator is connected with outlet sump through rising pipe, also is provided with mud valve in the lower end of the synchronous low-carbon nitrogen reactor drum of said anaerobically fermenting, also establishes the internal reflux pump in the outside of the synchronous low-carbon nitrogen reactor drum of said anaerobically fermenting.
7. an application rights requires 1 said device, and the method for enhanced sewage factory mud decrement and the denitrogenation of low-carbon (LC) consumption is characterized in that, may further comprise the steps:
(1) in former pond and storage basin, fills with high-concentration ammonia-nitrogen sewage and excess sludge respectively;
(2) high-concentration ammonia-nitrogen sewage is mixed the formation mixed solution with seed sludge, and inject the A/O nitrator and carry out the short distance nitration processing;
(3) nitrification liquid injects the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting through intermediate pool;
(4) in the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting, nitrification liquid and the excess sludge through the storage basin injection are carried out triple couplings processing of Anammox, denitrification and sludge fermentation;
(5) handling back water outlet and mud discharges through rising pipe and mud valve respectively.
8. method according to claim 7; It is characterized in that; In step (2); To regulate the dissolved oxygen concentration of aerobic section in the A/O nitrator, to regulate return sludge ratio, regulate the sludge volume of residual sludge pump according to ammonia oxidation rate and short distance accumulation rate pilot-gas regulating valve with control A/O nitrification according to A/O nitrator sludge age according to MLSS concentration control sludge reflux pump in the A/O nitrator.
9. method according to claim 7 is characterized in that, in step (4), also comprises three sub-steps of synchronous low-carbon nitrogen reactor start-up of anaerobically fermenting and domestication process:
(4.1) water inlet of the synchronous low-carbon nitrogen reactor drum of initial start stage anaerobically fermenting
Adopt NH
4 +-N: NO
2-N is 1: 1.3 artificial distribution, and adopts the method that increases the nitrogen load one by one to accomplish the Anammox domestication of the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting is handled;
(4.2) when system's Anammox removal nitrogen load reaches desired value, increase NO among the artificial distribution
2-N ratio is to NH
4 +-N: NO
2-N is 1: 1.9, and with a certain amount of NO
3 --N drops in the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting, adds glucose simultaneously as denitrifying carbon source, to realize Anammox and denitrifying coupling;
(4.3) proportion of glucose during attenuating is intake gradually, the input amount of increase excess sludge replaces glucose as denitrifying carbon source with excess sludge, to realize triple couplings of Anammox, denitrification and sludge fermentation.
10. method according to claim 9; It is characterized in that; In step (4), according to upflow velocity control internal reflux pump in the synchronous low-carbon nitrogen reactor drum of anaerobically fermenting, to regulate internal reflux ratio; Middle nitrate salt and nitrite concentration according to water outlet are regulated into dredge pump and mud valve, with the sludge age in the synchronous low-carbon nitrogen reactor drum of adjustment anaerobically fermenting.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058461A (en) * | 2013-01-02 | 2013-04-24 | 北京工业大学 | Municipal sewage partial nitrification and anaerobic ammonia oxidation denitrification method capable of enhancing energy recuperation |
| CN103058374A (en) * | 2013-01-05 | 2013-04-24 | 北京工业大学 | Method for treating high-content ammonia and nitrogen for shortcut nitrification to discharge effluent by coupling simultaneous denitrification of sludge fermentation with autotrophic nitrogen removal |
| CN103663679A (en) * | 2012-09-19 | 2014-03-26 | 中国石油化工股份有限公司 | Device and method for carrying out nitration reaction of low-carbon high-nitrogen sewage by virtue of pure oxygen aeration |
| CN103693813A (en) * | 2013-12-24 | 2014-04-02 | 北京工业大学 | Device and method for strengthening sludge digestion and synchronously denitrifying and dephosphorizing |
| CN104291529A (en) * | 2014-10-12 | 2015-01-21 | 北京工业大学 | Device and method for treating high-concentration nitrate wastewater and urban sewage by partial denitrification and anaerobic ammonia oxidation |
| CN104649518A (en) * | 2015-02-08 | 2015-05-27 | 北京工业大学 | Device and method for treating ammonium nitrate wastewater by biological method |
| CN106045033A (en) * | 2016-07-10 | 2016-10-26 | 北京工业大学 | A2/O-UASB continuous flow integrated anaerobic ammonia oxidation coupling denitrifying phosphorus removal device and real-time control method |
| CN106938863A (en) * | 2017-04-24 | 2017-07-11 | 北京工业大学 | Sludge dual reflux AOA realizes the apparatus and method of city sewage deep denitrogenation dephosphorizing |
| CN109485149A (en) * | 2018-12-22 | 2019-03-19 | 北京工业大学 | A kind of apparatus and method for realizing treatment of advanced stage landfill leachate advanced nitrogen and excess sludge reduction |
| CN109574218A (en) * | 2018-12-22 | 2019-04-05 | 北京工业大学 | Short distance nitration-fermentation/denitrification-anaerobic ammonia oxidation process processing treatment of advanced stage landfill leachate apparatus and method |
| WO2022057124A1 (en) * | 2020-09-17 | 2022-03-24 | 广东粤海水务股份有限公司 | Sludge/water flow diversion double-sludge reaction apparatus and reaction method |
| CN117023831A (en) * | 2023-03-13 | 2023-11-10 | 湖北省协诚交通环保有限公司 | Method for rapidly realizing low-carbon-consumption synchronous nitrification and denitrification high-efficiency denitrification |
-
2012
- 2012-03-02 CN CN201210054292.8A patent/CN102531174B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| 张树军等: "污泥发酵同步消化液旁侧脱氮", 《中国环境科学》 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663679A (en) * | 2012-09-19 | 2014-03-26 | 中国石油化工股份有限公司 | Device and method for carrying out nitration reaction of low-carbon high-nitrogen sewage by virtue of pure oxygen aeration |
| CN103663679B (en) * | 2012-09-19 | 2015-08-19 | 中国石油化工股份有限公司 | Pure oxygen aeration is utilized to carry out the method for low-carbon high-nitrogen sewage nitration reaction |
| CN103058461A (en) * | 2013-01-02 | 2013-04-24 | 北京工业大学 | Municipal sewage partial nitrification and anaerobic ammonia oxidation denitrification method capable of enhancing energy recuperation |
| CN103058374A (en) * | 2013-01-05 | 2013-04-24 | 北京工业大学 | Method for treating high-content ammonia and nitrogen for shortcut nitrification to discharge effluent by coupling simultaneous denitrification of sludge fermentation with autotrophic nitrogen removal |
| CN103693813A (en) * | 2013-12-24 | 2014-04-02 | 北京工业大学 | Device and method for strengthening sludge digestion and synchronously denitrifying and dephosphorizing |
| CN104291529A (en) * | 2014-10-12 | 2015-01-21 | 北京工业大学 | Device and method for treating high-concentration nitrate wastewater and urban sewage by partial denitrification and anaerobic ammonia oxidation |
| CN104291529B (en) * | 2014-10-12 | 2016-01-20 | 北京工业大学 | The apparatus and method of part denitrification-Anammox process high concentration nitrate waste water and municipal effluent |
| CN104649518A (en) * | 2015-02-08 | 2015-05-27 | 北京工业大学 | Device and method for treating ammonium nitrate wastewater by biological method |
| CN106045033A (en) * | 2016-07-10 | 2016-10-26 | 北京工业大学 | A2/O-UASB continuous flow integrated anaerobic ammonia oxidation coupling denitrifying phosphorus removal device and real-time control method |
| CN106045033B (en) * | 2016-07-10 | 2018-10-19 | 北京工业大学 | A2/ O-UASB continuous flow integral anaerobic ammoxidation coupling denitrification dephosphorization apparatus and real-time control method |
| CN106938863A (en) * | 2017-04-24 | 2017-07-11 | 北京工业大学 | Sludge dual reflux AOA realizes the apparatus and method of city sewage deep denitrogenation dephosphorizing |
| CN109485149A (en) * | 2018-12-22 | 2019-03-19 | 北京工业大学 | A kind of apparatus and method for realizing treatment of advanced stage landfill leachate advanced nitrogen and excess sludge reduction |
| CN109574218A (en) * | 2018-12-22 | 2019-04-05 | 北京工业大学 | Short distance nitration-fermentation/denitrification-anaerobic ammonia oxidation process processing treatment of advanced stage landfill leachate apparatus and method |
| CN109574218B (en) * | 2018-12-22 | 2021-11-26 | 北京工业大学 | Device and method for treating late landfill leachate through shortcut nitrification-fermentation/denitrification-anaerobic ammonia oxidation process |
| CN109485149B (en) * | 2018-12-22 | 2022-04-22 | 北京工业大学 | Device and method for realizing advanced denitrification and excess sludge reduction of late landfill leachate |
| WO2022057124A1 (en) * | 2020-09-17 | 2022-03-24 | 广东粤海水务股份有限公司 | Sludge/water flow diversion double-sludge reaction apparatus and reaction method |
| CN117023831A (en) * | 2023-03-13 | 2023-11-10 | 湖北省协诚交通环保有限公司 | Method for rapidly realizing low-carbon-consumption synchronous nitrification and denitrification high-efficiency denitrification |
| CN117023831B (en) * | 2023-03-13 | 2024-04-05 | 湖北省协诚交通环保有限公司 | Method for rapidly realizing high-efficiency denitrification by low-carbon-consumption nitrification and denitrification |
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