CN102303938A - Combined process for building partial nitrosation-anaerobic ammonium oxidation garbage percolate - Google Patents
Combined process for building partial nitrosation-anaerobic ammonium oxidation garbage percolate Download PDFInfo
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- CN102303938A CN102303938A CN201110214095A CN201110214095A CN102303938A CN 102303938 A CN102303938 A CN 102303938A CN 201110214095 A CN201110214095 A CN 201110214095A CN 201110214095 A CN201110214095 A CN 201110214095A CN 102303938 A CN102303938 A CN 102303938A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 title abstract description 7
- 230000003647 oxidation Effects 0.000 title abstract description 4
- 238000007254 oxidation reaction Methods 0.000 title abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- CVTZKFWZDBJAHE-UHFFFAOYSA-N [N].N Chemical compound [N].N CVTZKFWZDBJAHE-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000001914 filtration Methods 0.000 claims abstract description 4
- -1 nitrite nitrogen Chemical compound 0.000 claims description 10
- 238000002203 pretreatment Methods 0.000 claims description 10
- 238000000247 postprecipitation Methods 0.000 claims description 2
- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000006396 nitration reaction Methods 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000007034 nitrosation reaction Methods 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 1
- 238000007781 pre-processing Methods 0.000 abstract 1
- 239000010865 sewage Substances 0.000 description 5
- 239000010802 sludge Substances 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 230000001590 oxidative Effects 0.000 description 4
- 235000020679 tap water Nutrition 0.000 description 4
- 239000008399 tap water Substances 0.000 description 4
- 235000013619 trace mineral Nutrition 0.000 description 4
- 239000011573 trace mineral Substances 0.000 description 4
- IOVCWXUNBOPUCH-UHFFFAOYSA-M nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 230000005526 G1 to G0 transition Effects 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N edta Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 241000893018 Armeria Species 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M NaHCO3 Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L cacl2 Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000004059 degradation Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 230000000813 microbial Effects 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000000630 rising Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- Y02W10/12—
Abstract
The invention discloses a combined process for building partial nitrosation-anaerobic ammonium oxidation garbage percolate. The method comprises the following steps of: normally separating and removing, filtering and settling garbage percolate, anaerobically and biochemicalally pre-processing; putting the pre-processed garbage percolate in a started and steady SBR (Sequencing Batch Reactor) reactor; controlling the temperature of the SBR reactor in a range of 25-35 DEG C; hydraulically staying for 2 to 3 days, wherein the dissolved oxygen concentration is 2 to 3 mg/L so that the mol concentration ratio of nitrosation nitrogen to ammonia nitrogen in the water is 0.8 to 1.4; flowing the water into an anaerobic reactor and carrying out the anaerobic ammonium oxidation to denitrify. The method provided by the invention controls the reaction condition of SBR reactor so that the ammonia nitrogen in the garbage percolate is partially nitrosated and then removed in the garbage percolate in the series anaerobe reactor. Compared with the traditional garbage percolate denitrifying process including nitration and denitrification, the method obviously reduces the addition of agents and the consumption of the power energy, reduces the processing cost of garbage percolate and is an energy-saving, consumption-emission and environmental-friendly processing process.
Description
Technical field:
The invention belongs to environmental technology field, be specifically related to a kind of combination process that makes up part nitrosation-anaerobic ammoxidation treating refuse percolate.
Background technology:
Percolate is the organic waste water of a kind of high density, high toxicity and difficult degradation, generally contains 60～90% organic pollutant, the ammonia nitrogen in high density of 3～18% hard-degraded substance and excusing from death far away sewage alive.How efficiently to remove the high ammonia nitrogen in the percolate, be the difficult problem that percolate is handled always.Traditional nitrification and denitrification denitride technology makes treatment effect unsatisfactory because percolate contains the water quality characteristic of high ammonia nitrogen and high soil ulmin.The Anammox denitride technology of rising in recent years; Generally acknowledged it is the sewage water denitrification technology of at present tool application prospect; Its ultimate principle is that anaerobic ammonium oxidizing bacteria under anaerobic is that electron acceptor(EA) is oxidized to nitrogen with ammonia nitrogen with the nitrite, compares outstanding advantages such as having energy-saving and cost-reducing and environmental friendliness with traditional bio-denitrification technology.
A crucial prerequisite using the Anammox technology is exactly that the nitrite nitrogen of anaerobic ammonia oxidation reactor water inlet and the molar ratio of ammonia nitrogen are maintained about 1: 1.But there is not nitrite in the percolate basically, therefore needs a part nitrosification technology.
Sequence bioreactor (SBR) is the aerobe reactor of present technological comparative maturity, has advantages such as simple in structure, stable, municipal wastewater and trade effluent nitrated with the part nitration processes in use very extensive.In addition, its also have simple to operate, be easy to advantages such as control.Anaerobic baffled reactor (ABR) is a high efficiency anaerobic reactor of handling middle and high concentration organic waste water, compares with other reactor drum to have outstanding advantages such as hydraulics is good, the biosolids interception capacity is strong, sludge yield is low, the microbial population distribution is reasonable, simple in structure, startup is very fast.
Summary of the invention:
The combination process that the purpose of this invention is to provide a kind of structure part nitrosation-anaerobic ammoxidation treating refuse percolate of suitable percolate ammonia nitrogen removal.
The combination process of structure part nitrosation-anaerobic ammoxidation treating refuse percolate of the present invention is characterized in that, may further comprise the steps:
Percolate earlier through conventional exclude, filtration and post precipitation; Carry out the anaerobic biological pre-treatment again, pretreated percolate get into start, in the stable sbr reactor device, the temperature of control sbr reactor device is 25～35 ℃; Hydraulic detention time is 2～3 days; Oxyty is 2mg/L～3mg/L, makes nitrite nitrogen in the water outlet: the ammonia nitrogen molar concentration rate is 0.8～1.4, and water outlet gets into again carries out the Anammox denitrogenation in the anaerobic reactor.
The anaerobic biological pre-treatment is a kind of biological method general name of the technology of treating refuse percolate under anaerobic of utilizing, and it comprises a lot of methods.Anaerobic biological pre-treatment main purpose is to improve the biodegradability of percolate.Described anaerobic biological pre-treatment preferably under normal temperature, anaerobism, hydraulic detention time are 1 day operational conditions, utilizes the ABR reactor drum to carry out the anaerobic biological pre-treatment.
The temperature of described sbr reactor device is preferably 33 ± 1 ℃.
Described anaerobic reactor is preferably ABR or UASB reactor drum.
The sbr reactor device can be inoculated active particle mud and tame according to ordinary method, starts the sbr reactor device, makes it stable.
Anaerobic reactor can be inoculated active particle mud or tame the enrichment anaerobic ammonium oxidizing bacteria through artificial distribution's mode.
The present invention will through and excluding, filter and pre-treatment such as deposition and the preparatory biochemical treatment of anaerobism after percolate handle through the sbr reactor device; Regulate temperature, hydraulic detention time and the oxyty of sbr reactor device; Make nitrite nitrogen in the water outlet of sbr reactor device: the ammonia nitrogen molar concentration rate is 0.8～1.4, and promptly about 1: 1, this water outlet gets in the anaerobic reactor again; Effect through the anaerobic ammonium oxidizing bacteria in the anaerobic reactor; Make ammonia nitrogen and nitrite nitrogen in this reaction workshop section be converted into nitrogen, thereby realized the purpose of denitrogenation, realized the removal of percolate middle and high concentration ammonia nitrogen.
The present invention is through the reaction conditions of control sbr reactor device, makes ammonia nitrogen part nitrosification in the percolate, the anaerobic biological reactor of connecting thereafter again; Realized the removal of ammonia nitrogen in the percolate; Technology of the present invention is compared with traditional percolate denitrification process such as nitrification and denitrification, can significantly reduce the input of medicament and the consumption of electric energy, thereby reduces the processing cost of percolate; Be a kind of energy-saving and cost-reducing, environment amenable treatment process.
Description of drawings:
Fig. 1 be embodiment 1 the sbr reactor device startup and stable after service chart; Wherein a representative is through the ammonia nitrogen concentration of the pretreated percolate as the SBR water inlet of anaerobic biological at different times, and b represents ammonia nitrogen concentration, nitrite nitrogen concentration and the nitric nitrogen concentration of SBR run duration in the water outlet of different times;
Fig. 2 is the ammonia nitrogen removal figure of the ABR reactor drum of embodiment 1.
Embodiment:
Following examples are to further specify of the present invention, rather than limitation of the present invention.
Embodiment 1:
In the sbr reactor device, inoculate mixing sludge (sanitary sewage disposal factory second pond mud and percolate processing plant biochemistry pool mud are pressed mass ratio and mixed at 1: 1).
In the ABR reactor drum, inoculate mixing sludge (sanitary sewage disposal factory second pond mud and percolate processing plant biochemistry pool mud are pressed mass ratio and mixed at 1: 1); Utilize the artificial distribution to tame and the enrichment anaerobic ammonium oxidizing bacteria; Make the ABR reactor start-up, and reach stable.The artificial distribution adds ammonia nitrogen and nitrite in the basic inorganic salt substratum, the interpolation ammonia nitrogen concentration is 260mg/L, and the nitrite nitrogen concentration is 320mg/L, and control pH value is about 8.0.
Every liter of basic inorganic salt substratum contains NaHCO
31.25g, KH
2PO
40.0272g, CaCl
22H
2O 0.18g, MgSO
47H
2O 0.3g, trace element solution I 1mL, trace element solution II 1mL, with the tap water polishing to 1000mL.
Every liter of trace element solution I contains EDTA 5g, FeSO
45g, tap water 1000mL.
Every liter of trace element solution II contains EDTA 15g, NaMnO
42H
2O 0.22g, MnCl
24H
2O 0.99g, H
3BO
40.014g, CoCl
26H
2O 0.24g, ZnSO
47H
2O 0.43g, CuSO
45H
2O 0.25g, NiCl
26H
2O 0.9g, NaSeO
410H
2O 0.21g, tap water 1000mL.
After percolate (ammonia nitrogen concentration is 2133mg/L) being passed through pre-treatments such as excluding, filtering of routine and deposition; Utilize the ABR reactor drum to carry out the anaerobic biological pre-treatment again; Its treatment condition are that normal temperature, anaerobism, hydraulic detention time are 1 day, to improve the biodegradability of percolate.
Inoculation has the sbr reactor device of mixing sludge at first will carry out pretrigger to reach steady state, can make sbr reactor device pretrigger and reach steady state according to ordinary method, again with the pretreated percolate of anaerobic biological as water inlet; The temperature of control sbr reactor device is between 25～35 ℃; Preferably maintain 33 ± 1 ℃, DO (oxyty) is at 2～3mg/L, and HRT (hydraulic detention time) was at 2～3 days; Ammonia nitrogen concentration according to water inlet changes; Above-mentioned operating parameter to the sbr reactor device is finely tuned in this scope, makes nitrite nitrogen in the water outlet of sbr reactor device: the ammonia nitrogen molar concentration rate is between 0.8～1.4, promptly about 1: 1.
Present embodiment is in order to practice thrift cost; Directly utilize the pretreated percolate of anaerobic biological that the sbr reactor device is carried out pretrigger and make it reach steady state, concrete technology is following, with the water inlet of the pretreated percolate of anaerobic biological as the sbr reactor device; Get into to inoculate in the sbr reactor device that mixing sludge is arranged and carry out pretrigger; And through detecting the water outlet of sbr reactor device, sbr reactor device state is monitored, get into stationary phase fully until the startup of sbr reactor device.As shown in Figure 1, in initial start stage (preceding 40 days), it is 4～7mg/L that reactor drum is kept higher oxyty, and to obtain higher rate of nitrification, HRT (hydraulic detention time) maintains 4～5 days, to improve the NO of water outlet
2 --N concentration.In fluctuation phase (40 days to 80 days), constantly the control manipulation parameter is to obtain suitable NO
2 --N: NH
4 +-N ratio, finally drawing suitable DO concentration is 2～4mg/L scope, HRT was at 2～4 days.Through after the above-mentioned processing, sbr reactor starts, and has got into stationary phase.
After 80 days; The sbr reactor device reaches the stable phase; The temperature that control the sbr reactor device this moment is 25～35 ℃, and DO (oxyty) is 2～3mg/L, and HRT (hydraulic detention time) is 2～3 days; Change according to the ammonia nitrogen concentration of water inlet and in this scope, to finely tune, make nitrite nitrogen in the water outlet: the ammonia nitrogen molar concentration rate is between 0.8～1.4.As can beappreciated from fig. 1, through starting, after stable sbr reactor device was handled, the nitrite nitrogen in the water outlet: ammonia nitrogen concentration was between 0.8～1.4, promptly about 1: 1.
After diluting, (can dilute) as the water inlet that starts good ABR reactor drum from the water outlet that the sbr reactor device comes out with tap water or sewage; The ratio of dilution can recently be carried out according to the ammonia nitrogen that detects in the water outlet of ABR reactor drum, and this belongs to the normal experiment means of this area.Find after testing; As shown in Figure 2, when the water outlet of sbr reactor device in the present embodiment accounted for ABR reactor water inlet ratio and is 50%, inhibitory action was the strongest; With the water inlet of this dilution ratio as the ABR reactor, the ammonia nitrogen in the water outlet of ABR reactor more than 98% has obtained removal.
This shows; After the method processing through present embodiment; The ammonia nitrogen that contains in the percolate of ammonia nitrogen in high density has obtained effective removal, and can significantly reduce the input of medicament and the consumption of electric energy, thereby reduces the processing cost of percolate; Be a kind of energy-saving and cost-reducing, environment amenable treatment process.
Claims (4)
1. combination process that makes up part nitrosation-anaerobic ammoxidation treating refuse percolate; It is characterized in that, may further comprise the steps: percolate earlier through conventional exclude, filtration and post precipitation, carry out the anaerobic biological pre-treatment again; Pretreated percolate get into start, in the stable sbr reactor device; The temperature of control sbr reactor device is 25～35 ℃, and hydraulic detention time is 2～3 days, and oxyty is 2mg/L～3mg/L; Make nitrite nitrogen in the water outlet: the ammonia nitrogen molar concentration rate is 0.8～1.4, and water outlet gets into again carries out the Anammox denitrogenation in the anaerobic reactor.
2. the combination process of structure part nitrosation-anaerobic ammoxidation treating refuse percolate according to claim 1; It is characterized in that; Described anaerobic biological pre-treatment is under normal temperature, anaerobism, hydraulic detention time are 1 day operational conditions, utilizes the ABR reactor drum to carry out the anaerobic biological pre-treatment.
3. the combination process of structure part nitrosation-anaerobic ammoxidation treating refuse percolate according to claim 1 is characterized in that the temperature of described sbr reactor device is 33 ± 1 ℃.
4. the combination process of structure part nitrosation-anaerobic ammoxidation treating refuse percolate according to claim 1 is characterized in that described anaerobic reactor is ABR or UASB reactor drum.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193319A (en) * | 2012-01-10 | 2013-07-10 | 夏小洪 | Treatment process of high ammonia nitrogen landfill leachate |
| CN103663876A (en) * | 2013-12-15 | 2014-03-26 | 北京工业大学 | Deep denitrification device and method for low C/N domestic sewage through process integrating anoxic/aerobic SBR (Sequencing Batch Reactor), anammox and anoxic SBR |
| CN103693807A (en) * | 2013-12-13 | 2014-04-02 | 重庆大学 | Combination method for treating pickled vegetable processing wastewater based on anaerobic ammonia oxidation |
| CN103833185A (en) * | 2014-03-10 | 2014-06-04 | 北京工业大学 | Energy recovery-based landfill leachate autotrophic nitrogen removal method |
| CN104276657A (en) * | 2014-10-12 | 2015-01-14 | 北京工业大学 | Device and method for synchronous treatment of high-nitrogen wastewater and municipal sewage by employing ANAMMOX-PD |
| CN104276656A (en) * | 2014-10-12 | 2015-01-14 | 北京工业大学 | Method for treating high-concentration nitrate waste water and municipal sewage through denitrification anaerobic ammonium oxidation SBR |
| CN105198169A (en) * | 2015-10-22 | 2015-12-30 | 广东省微生物研究所 | Method for applying combined packing layer autotrophic nitrogen removal microbe system and simultaneously removing total nitrogen and anti-inflammatory agents |
| CN107902765A (en) * | 2017-11-28 | 2018-04-13 | 王金龙 | A kind of multistage partial nitrification starts and control method |
| CN109052875A (en) * | 2018-10-29 | 2018-12-21 | 苏州科技大学 | A kind of evening age landfill leachate removal of carbon and nitrogen processing system and method |
| CN109205791A (en) * | 2018-11-23 | 2019-01-15 | 苏州科技大学 | A kind of waste water advanced removal of carbon and nitrogen processing method of high-carbon nitrogen |
| CN110255708A (en) * | 2019-05-27 | 2019-09-20 | 苏州市易柯露环保科技有限公司 | A kind of ultra-deep removal of carbon and nitrogen processing method and processing device of high-carbon nitrogen waste water |
| CN112010506A (en) * | 2020-08-28 | 2020-12-01 | 桂林理工大学 | Wetland pretreatment integrated device |
| CN115321679A (en) * | 2022-10-13 | 2022-11-11 | 广州市华绿环保科技有限公司 | Anaerobic ammonia oxidation treatment process for degrading landfill leachate |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193319A (en) * | 2012-01-10 | 2013-07-10 | 夏小洪 | Treatment process of high ammonia nitrogen landfill leachate |
| CN103693807B (en) * | 2013-12-13 | 2015-05-13 | 重庆大学 | Combination method for treating pickled vegetable processing wastewater based on anaerobic ammonia oxidation |
| CN103693807A (en) * | 2013-12-13 | 2014-04-02 | 重庆大学 | Combination method for treating pickled vegetable processing wastewater based on anaerobic ammonia oxidation |
| CN103663876A (en) * | 2013-12-15 | 2014-03-26 | 北京工业大学 | Deep denitrification device and method for low C/N domestic sewage through process integrating anoxic/aerobic SBR (Sequencing Batch Reactor), anammox and anoxic SBR |
| CN103663876B (en) * | 2013-12-15 | 2015-10-28 | 北京工业大学 | The apparatus and method of anoxic/aerobic SBR+ Anammox+aerobic SBR art breading low C/N domestic sewage advanced denitrogenation |
| CN103833185A (en) * | 2014-03-10 | 2014-06-04 | 北京工业大学 | Energy recovery-based landfill leachate autotrophic nitrogen removal method |
| CN103833185B (en) * | 2014-03-10 | 2015-03-04 | 北京工业大学 | Energy recovery-based landfill leachate autotrophic nitrogen removal method |
| CN104276657B (en) * | 2014-10-12 | 2016-02-17 | 北京工业大学 | ANAMMOX-PD synchronous processing height nitrogen waste water and municipal effluent apparatus and method |
| CN104276656A (en) * | 2014-10-12 | 2015-01-14 | 北京工业大学 | Method for treating high-concentration nitrate waste water and municipal sewage through denitrification anaerobic ammonium oxidation SBR |
| CN104276657A (en) * | 2014-10-12 | 2015-01-14 | 北京工业大学 | Device and method for synchronous treatment of high-nitrogen wastewater and municipal sewage by employing ANAMMOX-PD |
| CN105198169A (en) * | 2015-10-22 | 2015-12-30 | 广东省微生物研究所 | Method for applying combined packing layer autotrophic nitrogen removal microbe system and simultaneously removing total nitrogen and anti-inflammatory agents |
| CN105198169B (en) * | 2015-10-22 | 2017-06-30 | 广东省微生物研究所 | A kind of method that application compounded mix layer autotrophic denitrification microflora removes total nitrogen and anti-inflammatory agent simultaneously |
| CN107902765A (en) * | 2017-11-28 | 2018-04-13 | 王金龙 | A kind of multistage partial nitrification starts and control method |
| CN107902765B (en) * | 2017-11-28 | 2020-05-19 | 苏州诺津环保科技有限公司 | Multistage partial nitrosation starting and controlling method |
| CN109052875A (en) * | 2018-10-29 | 2018-12-21 | 苏州科技大学 | A kind of evening age landfill leachate removal of carbon and nitrogen processing system and method |
| CN109205791A (en) * | 2018-11-23 | 2019-01-15 | 苏州科技大学 | A kind of waste water advanced removal of carbon and nitrogen processing method of high-carbon nitrogen |
| CN110255708A (en) * | 2019-05-27 | 2019-09-20 | 苏州市易柯露环保科技有限公司 | A kind of ultra-deep removal of carbon and nitrogen processing method and processing device of high-carbon nitrogen waste water |
| CN112010506A (en) * | 2020-08-28 | 2020-12-01 | 桂林理工大学 | Wetland pretreatment integrated device |
| CN115321679A (en) * | 2022-10-13 | 2022-11-11 | 广州市华绿环保科技有限公司 | Anaerobic ammonia oxidation treatment process for degrading landfill leachate |
| CN115321679B (en) * | 2022-10-13 | 2023-01-24 | 广州市华绿环保科技有限公司 | Anaerobic ammonia oxidation treatment process for degrading landfill leachate |
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Application publication date: 20120104 |