CN101186387A - Method for increasing organism synchronous dephosphorization denitrogenation effect of sewage under anaerobic-hypoxia condition - Google Patents
Method for increasing organism synchronous dephosphorization denitrogenation effect of sewage under anaerobic-hypoxia condition Download PDFInfo
- Publication number
- CN101186387A CN101186387A CNA2007101707999A CN200710170799A CN101186387A CN 101186387 A CN101186387 A CN 101186387A CN A2007101707999 A CNA2007101707999 A CN A2007101707999A CN 200710170799 A CN200710170799 A CN 200710170799A CN 101186387 A CN101186387 A CN 101186387A
- Authority
- CN
- China
- Prior art keywords
- sewage
- fermented liquid
- anaerobic
- actual sewage
- cod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention pertains to the technical field of environmental protection, in particular to a method used for improving the biological dephosphorization and denitrification efficiency of actual sewage under anaerobic-hypoxia condition. Specific procedures are that the actual sewage to be treated is added with the short-chain fatty acid produced by the fermented residual sludge of a sewage treatment plant, and then the actual sewage is biologically treated in anaerobic-hypoxia condition so as to improve the dephosphorization and denitrification efficiency of the system. Being operated in reasonable technique parameters, after the processing, the discharged water can achieve that COD is less than 50mg/L, TN is less than 15mg/L, NH 4<+>-N is less than 2mg/L and TP is less than 0.5mg/L. The method has stable operation effect and strong resistance of impact load.
Description
Technical field
The invention belongs to the biologic treating technique field of water, waste water or sewage, be specifically related to a kind of method that improves actual sewage organism synchronous dephosphorization denitrification effect under anaerobic-hypoxia condition.
Background technology
Rapid economy development is destroyed water surrounding, in order to prevent body eutrophication, needs to remove nitrogen and phosphorus in the sewage.But SBR technology is faced with problems, and as there being carbon source competition etc. between dephosphorization and denitrogenation, and the carbon source concentration in the municipal effluent is generally lower, is difficult to satisfy the requirement of highly effective dephosphorizing denitrification simultaneously.In order to make the concentration of nitrogen and phosphorus in the water outlet reach sewage drainage standard, many sewage works need add extra carbon source balance denitrification and the competition of the carbon source between the dephosphorization (referring to document Water Science and Technology, 1994,30:73-81).Also there are many investigators to obtain efficiently dephosphorization and denitrification effect (referring to document Biotechnology andBioengineering, 2004,85:722-733 with the short chain fatty acid (such as acetate and propionic acid) of chemosynthesis; Biotechnology and Bioengineering, 2004,85:56-67).Studies show that strengthen in biological phosphate-eliminating (EBPR) and while nitration denitrification (SND) system at anaerobic-aerobic, dephosphorization denitrogenation all needs a certain amount of short chain fatty acid.Yet as a rule, the short chain fatty acid in the actual sewage all can not satisfy lower water outlet concentration of nitrogen and phosphorus.The characteristics of the low carbon source of south municipal effluent, high nitrogen phosphorus make this contradiction more outstanding, and this just makes a large amount of nitrogen and phosphorus be discharged in the environment, has caused the eutrophication of water body.
The N and the P that utilize active sludge microorganism to remove in the sewage are important method that prevents body eutrophication, wherein anaerobic-hypoxia biological dephosphorize denitrification Study on Technology is that an international in recent years focus is (referring to document Water Scienceand Technology, 2004,50 (10): 163-170; Biotechnology and Bioengineering, 2005,90:761-769).This technology is suitable with traditional hydraulic detention time based on the sewage biological treatment system of removing organism; Adopt low-oxygen aeration, saved energy consumption greatly; And characteristics such as it is integrated to have an anaerobic pond, Aerobic Pond, settling tank, and aeration rate is few, and sludge yield is low, do not need mud to reflux, save floor space.Thereby be the biological sewage treatment new technology of a kind of less energy-consumption, low sludge yield.
In the anaerobic-hypoxia sewage biological treatment system, the removal of N and P all will consume the organism in the sewage, when the organism in the sewage (mainly being short chain fatty acid SCFAs) quantity not sufficient, often causes the dephosphorization and denitrification effect variation.From bibliographical information (referring to document Biotechnology and Bioengineering, 2003,84:170-178; FEMS MicrobiologyEcology, 2005,52:329-338), artificial distribution's (COD reaches 400mg/L) of high density is all used in all researchs, and Shang Weijian uses the report of anaerobic-hypoxia art breading actual sewage.In view of general sewage treatment plant inflow organic concentration all lower, in order to improve the effect of actual sewage organism synchronous dephosphorization denitrogenation under anaerobic-hypoxia (DO is controlled at below the 1mg/L) condition, the present invention proposes the method for the short chain fatty acid (abbreviation fermented liquid) that the adding excess sludge produces in actual sewage after fermenting.Before fermented liquid added, nitrogen wherein and phosphorus were at first used struvite (MgNH
4PO
46H
2O is called for short MAP, referring to document Water Research, 2002,36:2991-2998; Industrial and Engineering Chemistry Research, 2006,45:663-669) technology reclaims.Up to the present, do not see as yet in the document that the method that adds fermented liquid in the actual sewage system of anaerobic-hypoxia is at report.
Not only, the dephosphorization denitrogenation microorganism enriches carbon source by the present invention for providing, realize minimizing, the resource utilization of sewage treatment plant residual mud simultaneously and reduced the purpose of its environmental pollution, also avoided additionally adding the expense of chemical agent, thereby reached purpose energy-conservation, that lower consumption and reduce discharging.
Summary of the invention
The object of the present invention is to provide a kind of method that improves actual sewage organism synchronous dephosphorization denitrogenation under anaerobic-hypoxia condition.
The method of raising actual sewage organism synchronous dephosphorization denitrification effect under anaerobic-hypoxia condition that the present invention proposes, concrete steps are as follows: add the fermented liquid that is produced by the excess sludge fermentation in pending actual sewage; The actual sewage that then will contain fermented liquid pumps into and carries out in the sequence batch (reaction tank (sbr reactor pond) carrying out anaerobic reaction under the situation of blowing air not, and the reaction times is 1-2 hour; This moment, polyP bacteria utilized organic matter of sewage to synthesize poly--hydroxy alkanoic acid (PHAs), and fully released phosphorus, owing to added fermented liquid, had synthesized more poly-hydroxypentanoic acid (PHV); Anaerobic reaction finishes back bubbling air in the sequence batch (reaction tank and carries out low-oxygen aeration biological treatment reaction, and the reaction times is 2-3 hour, and low-oxygen aeration finishes the back quiescent setting, carries out mud-water separation, the sewage qualified discharge after the processing; Wherein, under the situation of water inlet COD 〉=120mg/L, the dosage of fermented liquid and actual sewage volume ratio are 1: 10-1: 20; The fermented liquid Short-Chain Fatty Acids is more than 6000mg/L, and acetate accounts for 25-35% in the fermented liquid, and propionic acid accounts for 20%-30%.
Among the present invention, when described low-oxygen aeration was carried out a biological disposal upon, the control dissolved oxygen concentration was less than 1mg/L.
Among the present invention, the water-filling in sbr reactor pond is than being 0.3-0.785.
In anaerobism latter stage, the outer carbon source of solubility seldom, the hypoxemia stage microorganism will utilize the energy and the carbon source that internal carbon source (PHAs) absorbs as its growth and denitrification and phosphorus.Because adding of fermented liquid, more PHV and PH2MV have been synthesized in the anaerobism section, because of the PHV among the PHAs and PH2MV are a kind of internal carbon sources of oxidation more at a slow speed, thereby the carbon source that slows down is by the speed of oxygen to directly oxidize, prolonged time that denitrifying bacterium utilizes carbon source, help denitrifying carrying out under the hypoxia condition, strengthened the denitrification dephosphorization function of system.In addition, find also in the research that adding of fermented liquid reduced hypoxemia stage denitrification gaseous product Nitrous Oxide (N
2O) generation.
The method of raising actual sewage organism synchronous dephosphorization denitrification effect under anaerobic-hypoxia condition that the present invention proposes, the recommendation processing parameter is: the dosage of fermented liquid is 1 with the ratio of actual sewage: 10-1: 20, the anaerobism churning time is 1-2h, the low-oxygen aeration time is 2-3h, low-oxygen aeration stage D O concentration is less than 1mg/L, and sludge age is about 20d.
The invention has the beneficial effects as follows:
(1) adding of fermented liquid can improve the ability of synthetic PHV of microbiological anaerobic and PH2MV, reduces low-oxygen aeration stage denitrification gaseous product N
2The generation of O helps keeping simultaneously higher nitrogen of low-oxygen aeration stage, phosphorus removal effect, thereby can reduce the concentrating of nutrients such as nitrogen, phosphorus in the water outlet, prevents the generation of body eutrophication.
(2) present method is under rational operating parameter, and organism, ammonia nitrogen, total tp removal rate can reach more than 90% in the municipal effluent, and water outlet reaches the one-level A of sewage work emission standard.Water outlet after the processing can reach COD＜50mg/L, TN＜15mg/L, NH
4 +-N＜2mg/L and TP＜0.5mg/L.
(3) present method operating performance is stable, and anti-shock loading is strong.
Description of drawings
Fig. 1 is the process flow sheet of the embodiment of the invention 1.
Number in the figure: 1 produces sour pond for sludge fermentation, and 2 is nitrogen phosphorus pond for recovering, and 3 is fermented liquid storage pond, and 4 be the sewage equalizing tank, and 5 is the sbr reactor pond, and 6 is pump, and 7 is agitator, and 8 is that dissolved oxygen meter is popped one's head in, and 9 is online dissolved oxygen meter controller, and 10 is aeration pump, and 11 is aeration head.
Embodiment
Embodiment 1:
The method of excess sludge fermentative production short chain fatty acid is as follows:
The residual active sludge of taking from sewage work's second pond discharging carries out concentrating and precipitating 24h under 4 ℃ of conditions, excess sludge after concentrating carries out anaerobically fermenting 8-10d under alkalescence (pH=10.0) condition, fermentation back mud mixture carries out centrifugation, and the supernatant liquor after the separation is the fermented liquid that comprises short chain fatty acid.
The method that reclaims N and P from excess sludge fermentation broth is as follows:
N that discharges in the fermented liquid and P use struvite (MgNH under alkalescence (pH=10.0) condition
4PO
46H
2O, MAP) technology reclaims.According to formula (1), forming the struvite precipitation needs Mg
2+, NH
4 +And PO
4 3-Be higher than P owing to discharge the amount of N,, need to add MgCl therefore in order to reclaim N and P simultaneously
26H
2O and K
2HPO
4According to discharging NH
4 +Amount add K
2HPO
4(N/P carbon mol ratio is 1/1) is then according to residue PO
4 3-Amount add MgCl
26H
2O (Mg/P carbon mol ratio is 1.8/1), the reaction times is 2min.
Mg
2++NH
4 ++PO
4 3-+6H
2O→MgNH
4PO
4·6H
2O↓ (1)
The clearance that reclaims back N and P can reach respectively more than 70% and 80%, and the SCFAs that reclaims in the secondary fermentation liquid can reach more than the 6000mg/L, and the acetic acid content that wherein accounts for main component is 25-35%, and the content of propionic acid is 20%-30%.
The method that sludge fermentation liquid is used to improve the anaerobic-hypoxia wastewater treatment efficiency is as follows:
Be treated to example with aerated grit chamber tail water, pending actual sewage COD is 150mg/L, adds 1 liter of fermented liquid in per 20 liters of sewage, and making into, the total COD of water is about 420mg/L, TN:32.5mg/L, TP:5.6mg/L.Sbr reactor pond water-filling ratio is 0.5, and flooding velocity is 7m
3/ d, the sewage hydraulic detention time in reaction tank is 12h.Earlier (being anaerobism) stirs 2h under the situation of blowing air not, then carries out low-oxygen aeration 3h (dissolved oxygen is less than 1mg/L).Precipitate 1h then, at last supernatant liquor is discharged.Mixed liquor suspended solid, MLSS concentration (MLSS) is about 3000mg/L, and sludge age is 20d.Postrun water outlet result: COD=50mg/L, TN=7.1mg/L, TP=1.17mg/L, NH
4 +-N=0mg/L, effluent quality do not meet the one-level A of sewage work emission standard.
Embodiment 2:
Preparation of fermentation liquid and wherein the recovery method of N and P with embodiment 1.
Pending actual sewage COD is 165mg/L, and the fermented liquid add-on is 1 liter in per 15 liters of sewage, makes into that the total COD of water is about 500mg/L, TN:32mg/L, and TP:5.96mg/L, MLSS is about 3000mg/L, and all the other are with embodiment 1.Operation result: COD=45mg/L, TN=5.5mg/L, TP=0.18mg/L, NH
4 +-N=0mg/L, effluent quality meet the one-level A of sewage work emission standard.
Embodiment 3:
Preparation of fermentation liquid and wherein the recovery method of N and P with embodiment 1.
Pending actual sewage COD is 140mg/L, and the fermented liquid add-on is 1 liter in per 10 liters of sewage, makes into that the total COD of water is about 780mg/L, TN:33.5mg/L, and TP:6mg/L, MLSS is about 3000mg/L, and all the other are with embodiment 1.Operation result: COD=45mg/L, TN=4mg/L, TP=0mg/L, NH
4 +-N=0mg/L, effluent quality meet the one-level A of sewage work emission standard.
Embodiment 4:
Pending actual sewage COD is 176mg/L (not adding fermented liquid in the reaction tank), TN:28mg/L, TP:4.3mg/L.MLSS is about 2100mg/L, and all the other are with embodiment 1.Operation result: COD=48mg/L, TN=12mg/L, TP=1.68mg/L, NH
4 +-N=0mg/L, effluent quality do not meet the one-level A of sewage work emission standard.
Embodiment 5:
Preparation of fermentation liquid and wherein the recovery method of N and P with embodiment 1.
Pending actual sewage COD is 130mg/L, and the fermented liquid add-on is 1 liter in per 15 liters of sewage, and making into, the total COD of water is about 470mg/L, TN:32.3mg/L, TP:5.8mg/L.MLSS is about 3000mg/L, and all the other are with embodiment 1.Operation result: COD=50mg/L, TN=9.2mg/L, TP=0.35mg/L, NH
4 +-N=1.8mg/L, effluent quality meet the one-level A of sewage work emission standard.
Embodiment 6:
Preparation of fermentation liquid and wherein the recovery method of N and P with embodiment 1.
Pending actual sewage COD is 140mg/L, and the fermented liquid add-on is 1 liter in per 15 liters of sewage, makes into that the total COD of water is about 475mg/L, TN:32.4mg/L, and TP:5.75mg/L, sbr reactor pond water-filling ratio is 0.5, flooding velocity is 7m
3/ d, the sewage hydraulic detention time in reaction tank is 12h.The dissolved oxygen of controlling the low-oxygen aeration stage simultaneously is less than 1mg/L, and MLSS is about 3000mg/L, and sludge age is 20d, and the anaerobism section time is 2h, and the hypoxemia section time is 2h.Operation result: COD=49mg/L, TN=8mg/L, TP=0.20mg/L, NH
4 +-N=1.1mg/L, effluent quality meet the one-level A of sewage work emission standard.
Embodiment 7:
Pending actual sewage COD is 145mg/L (not adding fermented liquid in the reaction tank), TN:28.5mg/L, and TP:4.7mg/L, sbr reactor pond water-filling ratio is 0.3, flooding velocity is 4.2m
3/ d, the sewage hydraulic detention time in reaction tank is 20h.The dissolved oxygen of controlling the low-oxygen aeration stage simultaneously is less than 1mg/L, and MLSS is about 2100mg/L, and sludge age is 20d, and the anaerobism section time is 1h, and the hypoxemia section time is 3h.Operation result: COD=55mg/L, TN=11mg/L, TP=1.50mg/L, NH
4 +-N=0.5mg/L, effluent quality do not meet the one-level A of sewage work emission standard.
Embodiment 8:
Preparation of fermentation liquid and wherein the recovery method of N and P with embodiment 1.
Pending actual sewage COD is 150mg/L, and the fermented liquid add-on is 1 liter in per 15 liters of sewage, makes into that the total COD of water is about 480mg/L, TN:31.5mg/L, and TP:5.8mg/L, MLSS is about 3000mg/L, and all the other are with embodiment 7.Operation result: COD=47mg/L, TN=5.1mg/L, TP=0.15mg/L, NH
4 +-N=0mg/L, effluent quality meet Sewage Plant one-level A emission standard.
Embodiment 9:
Preparation of fermentation liquid and wherein the recovery method of N and P with embodiment 1.
Pending actual sewage COD is 130mg/L, and the fermented liquid add-on is 1 liter in per 18 liters of sewage, and making into, the total COD of water is about 400mg/L, TN:32mg/L, TP:5.7mg/L, the anaerobism section time is 2h, the hypoxemia section time is 2h, and MLSS is about 3000mg/L, and all the other are with embodiment 7.Operation result: COD=48mg/L, TN=8.2mg/L, TP=0.45mg/L, NH
4 +-N=1.5mg/L, effluent quality meet the one-level A of sewage work emission standard.
Embodiment 10:
Pending actual sewage COD is 170mg/L (not adding fermented liquid in the reaction tank), TN:29mg/L, and TP:4mg/L, sbr reactor device water-filling ratio is 0.785, flooding velocity is 11m
3/ d, the sewage hydraulic detention time in reaction tank is 7.6h.Earlier (being anaerobism) stirs 1h under the situation of blowing air not, then carries out low-oxygen aeration 3h (dissolved oxygen is less than 1mg/L).Precipitate 1h then, at last supernatant liquor is discharged.MLSS is about 2100mg/L, and sludge age is 20d.Postrun water outlet result: COD=53mg/L, TN=10.5mg/L, TP=0.85mg/L, NH
4 +-N=0mg/L, effluent quality do not meet Sewage Plant one-level A emission standard.
Embodiment 11:
Preparation of fermentation liquid and wherein the recovery method of N and P with embodiment 1.
Pending actual sewage COD is 176mg/L, and the fermented liquid add-on is 1 liter in per 15 liters of sewage, and making into, the total COD of water is about 520mg/L, TN:32.3mg/L, TP:5.9mg/L.MLSS is about 3000mg/L, and all the other are with embodiment 10.Operation result: COD=49mg/L, TN=5.1mg/L, TP=0.1mg/L, NH
4 +-N=0mg/L, effluent quality meet Sewage Plant one-level A emission standard.
Above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the invention is not restricted to the embodiment here, those skilled in the art should be within protection scope of the present invention for improvement and modification that the present invention makes according to announcement of the present invention.
Claims (3)
1. method that improves actual sewage organism synchronous dephosphorization denitrification effect under anaerobic-hypoxia condition, concrete steps are as follows: add the fermented liquid that is produced by the excess sludge fermentation in pending actual sewage, the actual sewage that then will contain fermented liquid pumps in the sequence batch (reaction tank under the situation of blowing air not and carries out anaerobic reaction, reaction times is 1-2 hour, anaerobic reaction finishes back bubbling air in sequencing batch reactor and carries out low-oxygen aeration biological treatment reaction, reaction times is 2-3 hour, low-oxygen aeration finishes the back quiescent setting, carry out mud-water separation, the sewage qualified discharge after the processing; Wherein, under the situation of water inlet COD 〉=120mg/L, the dosage of fermented liquid and actual sewage volume ratio are 1: 10-1: 20; The fermented liquid Short-Chain Fatty Acids is more than 6000mg/L, and acetate accounts for 25-35% in the fermented liquid, and propionic acid accounts for 20%-30%.
2. method according to claim 1, when it is characterized in that described low-oxygen aeration is carried out a biological disposal upon, dissolved oxygen concentration is less than 1mg/L.
3. method according to claim 1 is characterized in that: the water-filling of list type reactor is than being 0.3-0.785.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101707999A CN101186387A (en) | 2007-11-22 | 2007-11-22 | Method for increasing organism synchronous dephosphorization denitrogenation effect of sewage under anaerobic-hypoxia condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101707999A CN101186387A (en) | 2007-11-22 | 2007-11-22 | Method for increasing organism synchronous dephosphorization denitrogenation effect of sewage under anaerobic-hypoxia condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101186387A true CN101186387A (en) | 2008-05-28 |
Family
ID=39479052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101707999A Pending CN101186387A (en) | 2007-11-22 | 2007-11-22 | Method for increasing organism synchronous dephosphorization denitrogenation effect of sewage under anaerobic-hypoxia condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101186387A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060412A (en) * | 2010-11-10 | 2011-05-18 | 天津城市建设学院 | Device and method for improving biological dephosphorizing and denitriding efficiency of low carbon source sewage |
| CN102815837A (en) * | 2012-08-13 | 2012-12-12 | 同济大学 | Method for removing ultra-fine sand in sewage, and method for enhancing biological nitrogen and phosphorus removing |
| CN103466802A (en) * | 2013-09-03 | 2013-12-25 | 同济大学 | Method for cutting down adverse effects of nano material on sewage biological denitrification and phosphorus removal system |
| CN103663681A (en) * | 2013-12-15 | 2014-03-26 | 北京工业大学 | Device and method for utilizing carbon source in sludge to treat urban sewage through in-depth nitrogen and phosphorus removal by SBR (sequencing batch reactor) |
| CN103910431A (en) * | 2014-04-03 | 2014-07-09 | 北京工业大学 | Device and method for enhancing reduction of denitrified coupling sludge in urban sewage by using intra-sludge carbon sources by two stages of sequencing batch reactors (SBR) |
| CN105174452A (en) * | 2015-07-19 | 2015-12-23 | 北京工业大学 | Apparatus for reinforcing nitrogen and phosphorus removal coupling and sludge reduction of low C/N ratio municipal domestic sewage by using carbon source in sludge, and method thereof |
| CN106007278A (en) * | 2016-06-21 | 2016-10-12 | 昆明理工大学 | Sludge treatment method |
| WO2018028059A1 (en) * | 2016-08-12 | 2018-02-15 | 同济大学 | Organic wastewater treatment method and organic wastewater treatment system |
-
2007
- 2007-11-22 CN CNA2007101707999A patent/CN101186387A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060412A (en) * | 2010-11-10 | 2011-05-18 | 天津城市建设学院 | Device and method for improving biological dephosphorizing and denitriding efficiency of low carbon source sewage |
| CN102060412B (en) * | 2010-11-10 | 2012-08-08 | 天津城市建设学院 | Device and method for improving biological dephosphorizing and denitriding efficiency of low carbon source sewage |
| CN102815837A (en) * | 2012-08-13 | 2012-12-12 | 同济大学 | Method for removing ultra-fine sand in sewage, and method for enhancing biological nitrogen and phosphorus removing |
| CN103466802B (en) * | 2013-09-03 | 2015-04-15 | 同济大学 | Method for cutting down adverse effects of nano material on sewage biological denitrification and phosphorus removal system |
| CN103466802A (en) * | 2013-09-03 | 2013-12-25 | 同济大学 | Method for cutting down adverse effects of nano material on sewage biological denitrification and phosphorus removal system |
| CN103663681A (en) * | 2013-12-15 | 2014-03-26 | 北京工业大学 | Device and method for utilizing carbon source in sludge to treat urban sewage through in-depth nitrogen and phosphorus removal by SBR (sequencing batch reactor) |
| CN103663681B (en) * | 2013-12-15 | 2015-05-20 | 北京工业大学 | Device and method for utilizing carbon source in sludge to treat urban sewage through in-depth nitrogen and phosphorus removal by SBR (sequencing batch reactor) |
| CN103910431A (en) * | 2014-04-03 | 2014-07-09 | 北京工业大学 | Device and method for enhancing reduction of denitrified coupling sludge in urban sewage by using intra-sludge carbon sources by two stages of sequencing batch reactors (SBR) |
| CN103910431B (en) * | 2014-04-03 | 2015-10-14 | 北京工业大学 | Two-stage SBR utilizes sludge internal carbon source to strengthen the apparatus and method of city domestic sewage denitrogenation coupling mud decrement |
| CN105174452A (en) * | 2015-07-19 | 2015-12-23 | 北京工业大学 | Apparatus for reinforcing nitrogen and phosphorus removal coupling and sludge reduction of low C/N ratio municipal domestic sewage by using carbon source in sludge, and method thereof |
| CN105174452B (en) * | 2015-07-19 | 2018-01-19 | 北京工业大学 | A kind of sludge internal carbon source strengthens apparatus and method of the low C/N than city domestic sewage denitrogenation dephosphorizing coupling mud decrement |
| CN106007278A (en) * | 2016-06-21 | 2016-10-12 | 昆明理工大学 | Sludge treatment method |
| WO2018028059A1 (en) * | 2016-08-12 | 2018-02-15 | 同济大学 | Organic wastewater treatment method and organic wastewater treatment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113480004B (en) | Method for deeply denitrifying urban sewage after carbon and phosphorus capture and realizing phosphorus recovery through PDA (personal digital Assistant) | |
| CN105110572B (en) | A kind of apparatus and method of carbon source absorption/nitrification/part denitrification/low C/N municipal sewages of Anammox coupling technique processing | |
| CN103332829B (en) | Enhanced sewage biological nitrogen and phosphorus removal method bases on polyhydroxyalkanoate metabolism regulation | |
| CN100569669C (en) | Anaerobic-anoxic oxidation pitch technique denitrification dephosphorization device and method thereof | |
| CN104961305B (en) | A kind of processing method of livestock breeding wastewater anaerobic fermented liquid | |
| CN110143725A (en) | Mixing sludge fermentation liquid is that carbon source continuous flow short-cut denitrification couples anaerobic ammonia oxidation process Treating Municipal Sewage device and method | |
| CN113415910B (en) | Device and method for denitrification coupling anaerobic ammonium oxidation biological nitrogen and phosphorus removal in iron ammonium oxidation enhanced AAO process | |
| CN108545830A (en) | A kind of technique for strengthening continuous flow municipal sewage part short distance nitration Anammox using sludge fermentation | |
| CN106745743A (en) | A kind of sewage denitrification dephosphorization system | |
| CN108946944A (en) | The method that short-cut denitrification promotes the removal of waste water total nitrogen | |
| CN101186387A (en) | Method for increasing organism synchronous dephosphorization denitrogenation effect of sewage under anaerobic-hypoxia condition | |
| CN113800636B (en) | Method and device for treating sludge digestive juice by coupling short-cut nitrification/anaerobic ammonia oxidation-fermentation and short-cut denitrification/anaerobic ammonia oxidation | |
| CN105692904A (en) | Method and device for achieving integrated anaerobic ammonia oxidation autotrophic denitrification of urban sewage | |
| CN101708923A (en) | Denitrifying phosphorus and nitrogen removal method for wastewater with low carbon-phosphorus ratio | |
| CN108658229B (en) | Device and method for controlling autotrophic/heterotrophic deep denitrification process | |
| CN108128897A (en) | The apparatus and method of synchronous short-cut nitrification and denitrification dephosphorization Treating Municipal Sewage are realized based on azanol | |
| CN114906933B (en) | Method for denitrification, dephosphorization and phosphorus recovery of wastewater | |
| CN112479361A (en) | Device and method for deeply treating salt-containing wastewater | |
| CN112607861A (en) | Process for treating municipal sewage by using excess sludge fermentation carbon source to strengthen denitrification dephosphorization, partial short-cut denitrification and anaerobic ammonia oxidation | |
| CN105366889B (en) | A kind of town sewage high standard denitrification dephosphorization system without additional carbon | |
| CN108383239B (en) | Integrated biological treatment process for shortcut nitrification anaerobic ammonia oxidation and phosphorus removal under intermittent aeration mode | |
| CN100545102C (en) | A kind of anaerobic-hypoxia condition is the method for biological treatment while dephosphorization denitrogenation down | |
| CN207418548U (en) | A kind of sewage recycling processing unit | |
| CN101323488B (en) | Method for improving sewerage dephosphorization and denitrification effect | |
| CN113415884B (en) | Method for simultaneously treating domestic sewage and nitrate wastewater to remove nitrogen and phosphorus by fully utilizing internal carbon source |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080528 |