CN106145506A - The apparatus and method of coal chemical industrial waste water Anammox coupling heterotrophic denitrification denitrogenation - Google Patents
The apparatus and method of coal chemical industrial waste water Anammox coupling heterotrophic denitrification denitrogenation Download PDFInfo
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Abstract
" apparatus and method of coal chemical industrial waste water Anammox coupling heterotrophic denitrification denitrogenation " relate to a kind of Anammox coupling heterotrophic denitrification by stability and high efficiency and remove the apparatus and method of ammonia nitrogen in high ammonia nitrogen coal chemical industrial waste water, belong to technical field of biological sewage treatment, it is adaptable to coal chemical industrial waste water and other such as anaerobic digestion biogas slurry, breeding wastewater, the process of gourmet powder waste water contour ammonia nitrogen organic industrial sewage.
Description
Technical field
The present invention relates to a kind of Anammox coupling heterotrophic denitrification by stability and high efficiency and remove high ammonia nitrogen coal chemical industrial waste water
The apparatus and method of middle ammonia nitrogen, belong to technical field of biological sewage treatment, it is adaptable to coal chemical industrial waste water and other is all
As anaerobic digestion biogas slurry, breeding wastewater, gourmet powder waste water contour ammonia nitrogen organic industrial sewage process.
Background technology
Coal Chemical Industry is with coal as raw material, makes coal be converted into gas, liquid, solid fuel and chemicals through chemical process
Process.Coal chemical industrial waste water water quality changes because of differences such as production technology and employing equipment, is that a kind of typical high ammonia nitrogen has
Machine industrial wastewater, in waste water COD concentration be about 1500-6000mg/l, ammonia nitrogen be 400-1500mg/l.Coal Chemical Industry is given up
In water, the removal of ammonia nitrogen is design emphasis and difficult point.
Process this high ammonia nitrogen, low C/N is broadly divided into physico-chemical process (blow-off method and ammonia still process method) and life than waster water process technology
Change method (omnidistance biological denitrificaion and short range biological denitrification, denitrification of anaerobic ammonium oxidation).Physico-chemical process deamination needs to add in a large number
Chemical agent, operating cost is high, being directly discharged into air if dealt with improperly, will cause having processed sewage and but polluting greatly
Gas, the most fundamentally solves problem；According to ammonia reclaiming process, final high ammonia nitrogen solution final disposal rarely has through engineering approaches
, there is the risk of secondary pollution in application；Materialization water outlet ammonia nitrogen can not be the most up to standard, to Organic substance almost without removal effect,
Still need to by biological treatment organics removal and residual ammonia nitrogen.The economy that biochemical process is well recognized as, efficient high ammonia-nitrogen wastewater
Denitrogenation technology, particularly denitrification of anaerobic ammonium oxidation represent the developing direction of denitrogenation, for continuable, environmental friendliness
High ammonia-nitrogen wastewater treatment technology.
Mineralized nitrogen is nitrate nitrogen by Nitrification by biological denitrification process, then by Denitrification by nitrate nitrogen
It is converted into nitrogen to escape from water.In the nitrification stage, it is to be completed by the antibacterial of two class independences that ammonia nitrogen is converted to nitrate
Two differential responses, are first nitrite (NO by nitrococcus (Nitrosomonas) by mineralized nitrogen2-N), so
After be nitrate (NO by nitrifier (Nitrobacter) by Nitrite transformation3-N).Nitre in traditional biological denitrification process
The end product of change effect is nitrate, and Denitrification is with NO3-N is electron acceptor.
Anammox (Anammox) is that the mid-90 in 20th century is real by Holland's Delft technology university biotechnology
Test a kind of novel biological dinitrification technology of room exploitation, refer to that, under anaerobism or anoxia condition, microorganism is directly with NO2-N be
Electron acceptor, with NH4 +-N is electron donor, and two kinds of nitrogens are converted into the bioprocesses of nitrogen, this mistake simultaneously
The energy that journey produces can make anaerobic ammonia oxidizing bacteria survive under anoxic conditions.Anammox technology is the warp being currently known
The bio-denitrification technology of Ji.Compared with tradition nitration denitrification, Anammox makees electron donor without additional Organic substance,
Both saved expense, secondary pollution can have been prevented again；The relatively conventional nitration denitrification of oxygen consumption declines 62.5%, and denitrogenation need not
Machine carbon source, is especially suitable for the process of low ratio of carbon to ammonium high ammonia-nitrogen wastewater.
Anammox technology obtains in the high ammonia-nitrogen wastewaters such as fermentation biogas slurry, percolate, gourmet powder waste water process
Application, but rarely have application in coal chemical industrial waste water processes." coal chemical industrial waste water Anammox coupling heterotrophic denitrification biology takes off
The apparatus and method of nitrogen " provide the coal chemical industrial waste water denitrogenation new technique of a kind of economical and efficient.
Summary of the invention
The purpose of the present invention is to propose to a kind of by Anammox coupling heterotrophic denitrification biological denitrificaion process coal chemical industrial waste water
Apparatus and method.
The processing means of high ammonia nitrogen coal chemical industrial waste water Anammox coupling heterotrophic denitrification biological denitrificaion, it is characterised in that:
It is provided with preposition heterotrophic denitrification pond (1), integral anaerobic ammoxidation pond (2), sedimentation tank (3), discharge bay (4).
Preposition heterotrophic denitrification pond is a cylinder anaerobic reactor, and bottom is provided with water-locator (1.3), raw water tubes (1.1)
Connecting with water-locator (1.3), middle and upper part is provided with 2 filler supports (1.4), installs Propylene polymerization plate between filler support
Formula filler (1.14), filler spacing 8cm, top is provided with three phase separator (1.6), the collection chamber (1.7) of three phase separator
Being connected with exhaustor (1.9), preposition heterotrophic denitrification pond water outlet is by circulating pump (1.2), circulation pipe (1.12) and system
After effluent recycling pipe (1.15) connects, being back to preposition heterotrophic denitrification pond by water-locator (1.3), supernatant is through going out
After tank (1.8) is collected, flow out preposition heterotrophic denitrification pond by outlet pipe (1.10), in preposition heterotrophic denitrification pond
Wall arranges spoiler (1.13), and bottom arranges population (1.5) and sampling valve (1.11)；
Integral anaerobic ammoxidation pond is a plug-flow reactor, and the anti-nitre of preposition heterotrophism is passed through in the water outlet in preposition heterotrophic denitrification pond
After change pond outlet pipe (1.10) is connected with the mud return line (2.7) in integral anaerobic ammoxidation pond, enters integration and detest
Anaerobic ammonium oxidation pond, arranges microcellular rubber diaphragm aeration head (2.4), Roots blower (2.6) bottom integral anaerobic ammoxidation pond
Being connected with aeration head (2.4) by air hose (2.8), in integral anaerobic ammoxidation pond, filled polyurethane sponge suspends and fills out
Material (2.1), the specification of single filler is 1.0 × 1.0 × 1.0cm, is respectively provided with dissolved oxygen DO at pond leading portion and back segment
On-line determination instrument (2.2), the most terminally positioned pH on-line determination instrument (2.3).
Sedimentation tank arranges inclined plate packing (3.1), the sedimentation tank base sludge sludge reflux by integral anaerobic ammoxidation pond
Pump (2.5) enters into integral anaerobic ammoxidation pond head end, and the supernatant of sedimentation tank enters into discharge bay；
Discharge bay top arranges system outlet pipe (4.1), and bottom arranges system effluent recycling pump (4.2), system effluent recycling
Pump is connected with the raw water tubes (1.1) in preposition heterotrophic denitrification pond by system effluent recycling pipe (1.15).
Present invention also offers one utilizes said apparatus to pass through Anammox coupling heterotrophic denitrification biological denitrificaion process height
The method of ammonia nitrogen coal chemical industrial waste water, its feature comprises the following steps:
1) from coal chemical industrial waste water treatment plant Aeration tank, activated sludge and starch wastewater treatment factory UASB reactor will obtain
Anaerobic grain sludge be added to preposition heterotrophic denitrification pond according to mass ratio 1: 1, postvaccinal sludge concentration MLSS is
About 16000mg/l；Municipal wastewater treatment plant nitrifying sludge good for activity is added to integral anaerobic ammoxidation pond, after adding
Sludge concentration MLSS be about 7000mg/l；Polyurethane sponge biologic packing material is loaded into integral anaerobic ammonia oxygen simultaneously
Changing in pond, filling rate is the 25-30% of basin's effective volume；
2) coal chemical industrial waste water through pretreatment enters preposition heterotrophic denitrification pond with system water outlet after mixing, and preposition heterotrophism is anti-
Nitrification tank running temperature is 28-31 DEG C, and operation pH value is 7.5-8.3, and hydraulic detention time HRT is 20～36 hours,
HRT is along with coal chemical industrial waste water organic cod concentration and nitrate nitrogen NO in recycling effluent3 -The increase of-N concentration and extend；
3) preposition heterotrophic denitrification pond water outlet enters into integral anaerobic ammoxidation pond, the waterpower in integral anaerobic ammoxidation pond
Time of staying HRT is 36-48 hour, and running temperature is 25～30 DEG C, and operation pH value is 7.1-8.3, dissolved oxygen DO
Maintaining 0.2～0.5mg/L by adjusting aeration rate, return sludge ratio maintains 40%～100%.
4) mixed liquor in integral anaerobic ammoxidation pond is by flowing into discharge bay after sedimentation tank mud-water separation, system final
Processing water to flow out by outlet pipe, system effluent recycling ratio is for 100-400%, along with integral anaerobic ammoxidation pond denitrogenation effect
The raising of rate, system effluent recycling ratio is gradually reduced to about 100% by about 400%.
Know-why: through coal chemical industrial waste water and the system water outlet of backflow of pretreatment, be simultaneously into the anti-nitre of preposition heterotrophism
Changing in pond, the denitrifying bacterium in pond utilizes the Organic substance in former water to complete combined nitrogen (NO in recycling effluent2 --N or
NO3 --N) efficient denitrification, it is achieved biological denitrificaion, reclaim basicity.Meanwhile, the remaining organic cod of denitrification,
Removed further by the synergism of hydrolysis acidification bacterium and methanogen, created for follow-up Anammox autotrophic denitrification
Make advantage.
Preposition heterotrophic denitrification pond water outlet enters into integral anaerobic ammoxidation pond, controls dissolved oxygen DO concentration ＜ 0.5mg/l,
By the ammonia oxidation bacteria AOB in suspended sludge and the anaerobic ammonia oxidizing bacteria AnAOB synergism on floating stuffing, synchronize
Complete ammonia nitrogen nitrosation and Anammox, it is achieved advanced nitrogen.In denitrification of autotrophic organism pond, mixed liquor enters sedimentation tank mud
After water separates, finally flowing into discharge bay overflow water outlet, the efficient degree of depth completing Organic substance and nitrogen in coal chemical industrial waste water is removed.
In above-mentioned coal chemical industrial waste water biological treatment system, the Organic substance in waste water is mainly used in denitrification and methane phase, subtracts
Few CO2Discharge.In integral anaerobic ammoxidation pond, a step completes nitrosation and the Anammox of ammonia nitrogen in high density, joint
Having saved the aeration rate of more than 50% and the denitrifying carbon source of 90%, the excess sludge generation amount of whole system reduces more than 60%.
The coal chemical industry wastewater treating method by Anammox coupling heterotrophic denitrification biological denitrificaion that the present invention relates to is with existing
There is technology to compare, have the advantage that
1) in preposition heterotrophic denitrification pond, the heterotrophic denitrifying Bacteria of granulating enrichment utilizes the organic cod in former water
By the NO in system flowback water outlet3-N or NO2-N is reduced to nitrogen, synchronizes to realize COD and total nitrogen TN and removes, subtracts
Few external carbon addition, reclaims basicity；After denitrification, remaining COD is then removed by anaerobic grain methane phase.Traditional handicraft
By aeration aerobic degradation Organic substance, " consuming energy ", produce the residue biological sludge being difficult to process in a large number, discharge simultaneously
A large amount of CO2。
2) this heterotrophic denitrification reactor is cylindrical reactor, and functional microorganism exists in granular form, and elimination capacity is high,
Eliminate intermediate sedimentation pond and sludge recirculation system.
3) water outlet of heterotrophic denitrification pond has become as high-ammonia nitrogen low C/N waste water, is especially suitable for Anammox denitrogenation.One
In body anaerobic ammonium oxidation tank, by nitrifier and the combination of anaerobic ammonia oxidizing bacteria, it is achieved the height of nitrogen in coal chemical industrial waste water
Effect low consumption is removed, and compares with traditional handicraft, saves aeration rate and the denitrifying carbon source of 90%, the whole system of more than 50%
Excess sludge generation amount reduce more than 60%..
4) this technology is while realizing coal chemical industrial waste water qualified discharge and regeneration, embody minimum COD oxidation,
Minimum CO2Discharge, minimum excess sludge produce, reclaim to greatest extent the continuable coal chemical industrial waste water biological treatment of the energy
Theory.
Accompanying drawing explanation
Fig. 1 is the structural representation of assembly of the invention.
Detailed description of the invention
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings: embodiment 1:
The processing means of high ammonia nitrogen coal chemical industrial waste water Anammox coupling heterotrophic denitrification biological denitrificaion: be provided with preposition heterotrophism
Denitrification pond 1, integral anaerobic ammoxidation pond 2, sedimentation tank 3, discharge bay 4.
Preposition heterotrophic denitrification pond is a cylinder anaerobic reactor, and bottom is provided with water-locator 1.3, raw water tubes 1.1 and water distribution
Device 1.3 connects, and middle and upper part is provided with 2 filler supports 1.4, installs Propylene polymerization gasket packing 1.14 between filler support,
Filler spacing 100cm, top is provided with three phase separator 1.6, and the collection chamber 1.7 of three phase separator is connected with exhaustor 1.9,
After preposition heterotrophic denitrification pond water outlet is connected with system effluent recycling pipe 1.15 by circulating pump 1.2, circulation pipe 1.12, logical
Crossing water-locator 1.3 and be back to preposition heterotrophic denitrification pond, supernatant is after effluent trough 1.8 is collected, by outlet pipe 1.10
Flowing out preposition heterotrophic denitrification pond, preposition heterotrophic denitrification pond inwall arranges spoiler 1.13, and bottom arranges population 1.5 and takes
Sample valve 1.11；
Integral anaerobic ammoxidation pond is the reactor of a cuboid, and preposition heterotrophism is passed through in the water outlet in preposition heterotrophic denitrification pond
After denitrification pond outlet pipe 1.10 is connected with the mud return line 2.7 in integral anaerobic ammoxidation pond, enter integral anaerobic
Ammoxidation pond, arranges microcellular rubber diaphragm aeration head 2.4 bottom integral anaerobic ammoxidation pond, Roots blower 2.6 passes through
Air hose 2.8 is connected with aeration head 2.4, filled polyurethane sponge floating stuffing 2.1 in integral anaerobic ammoxidation pond, single
The specification of individual filler is 1.0 × 1.0 × 1.0cm, is respectively provided with dissolved oxygen DO on-line determination instrument 2.2 at pond leading portion and back segment,
The most terminally positioned pH on-line determination instrument 2.3.
Sedimentation tank arranges inclined plate packing 3.1, the sedimentation tank base sludge sludge reflux pump by integral anaerobic ammoxidation pond
2.5 enter into integral anaerobic ammoxidation pond head end, and the supernatant of sedimentation tank enters into discharge bay；
Discharge bay top arranges system outlet pipe 4.1, and bottom arranges system effluent recycling pump 4.2, and system effluent recycling pump leads to
Cross system effluent recycling pipe 1.15 to be connected with the raw water tubes 1.1 in preposition heterotrophic denitrification pond.
Embodiment 2: the operational approach utilizing said apparatus of the present invention:
Experimental water takes from the pretreatment (regulating reservoir+air supporting of Tuoketuo County, Inner Mongolia Autonomous Region coal chemical industrial waste water treatment plant
Pond) water outlet, for typical high ammonia nitrogen coal chemical industrial waste water.Water quality is as follows: COD 800～1900mg/l；NH4 +-N
1300～1500mg/l；SS 300～700mg/l；Basicity 2500～4000mg/l；PH value 6.5～7.8.Pilot system such as Fig. 1
Shown in, it is made up of preposition heterotrophic denitrification pond, integral anaerobic ammoxidation pond, sedimentation tank, discharge bay.
Concrete operating process is as follows:
1) will activated sludge from coal chemical industrial waste water treatment plant Aeration tank and starch wastewater treatment factory UASB reactor take
Anaerobic grain sludge is added to preposition heterotrophic denitrification pond according to mass ratio 1: 1, and postvaccinal sludge concentration MLSS is
About 13000mg/l；Municipal wastewater treatment plant nitrifying sludge good for activity is added to integral anaerobic ammoxidation pond, after adding
Sludge concentration MLSS be about 6000mg/l；Polyurethane sponge biologic packing material is loaded into integral anaerobic ammonia oxygen simultaneously
Changing in pond, filling rate is the 27% of basin's effective volume；
2) coal chemical industrial waste water through pretreatment enters preposition heterotrophic denitrification pond with system water outlet after mixing, and preposition heterotrophism is anti-
Nitrification tank running temperature is 28-31 DEG C, and operation pH value is 7.3-8.1, and hydraulic detention time HRT is 22 hours, HRT
Along with coal chemical industrial waste water organic cod concentration and nitrate nitrogen NO in recycling effluent3 -The increase of-N concentration and extend；
3) preposition heterotrophic denitrification pond water outlet enters into integral anaerobic ammoxidation pond, the waterpower in integral anaerobic ammoxidation pond
Time of staying HRT is 48 hours, and running temperature is 25～30 DEG C, and operation pH value is 7.1-8.3, and dissolved oxygen DO passes through
Adjusting aeration rate and maintain 0.2～0.5mg/L, return sludge ratio maintains 40%～100%.
4) mixed liquor in integral anaerobic ammoxidation pond is by flowing into discharge bay after sedimentation tank mud-water separation, system final
Processing water to flow out by outlet pipe, system effluent recycling ratio is for 100-300%, along with integral anaerobic ammoxidation pond denitrogenation effect
The raising of rate, system effluent recycling ratio is gradually reduced to about 100% by about 300%.
Long run test result shows: effluent COD concentration ＜ 300mg/l, COD clearance is higher than 75%, water outlet
TN ＜ 100mg/l, NH4 +-N ＜ 35mg/l, denitrification of autotrophic organism pond TN elimination capacity is 0.40Kg/m3·d.Drop in energy consumption
Low, CO2On the premise of reducing discharging with excess sludge, system effluent quality reaches coal chemical industrial waste water discharging standards, this skill
Art is continuable sewage disposal technology.
Claims (2)
1. the processing means of a coal chemical industrial waste water Anammox coupling heterotrophic denitrification biological denitrificaion, it is characterised in that: set
There are preposition heterotrophic denitrification pond (1), integral anaerobic ammoxidation pond (2), sedimentation tank (3), discharge bay (4).
Preposition heterotrophic denitrification pond is a cylinder anaerobic reactor, and bottom is provided with water-locator (1.3), raw water tubes (1.1)
Connecting with water-locator (1.3), middle and upper part is provided with 2 filler supports (1.4), installs Propylene polymerization plate between filler support
Formula filler (1.14), filler spacing 8cm, top is provided with three phase separator (1.6), the collection chamber (1.7) of three phase separator
Being connected with exhaustor (1.9), preposition heterotrophic denitrification pond water outlet is by circulating pump (1.2), circulation pipe (1.12) and system
After effluent recycling pipe (1.15) connects, being back to preposition heterotrophic denitrification pond by water-locator (1.3), supernatant is through going out
After tank (1.8) is collected, flow out preposition heterotrophic denitrification pond by outlet pipe (1.10), in preposition heterotrophic denitrification pond
Wall arranges spoiler (1.13), and bottom arranges population (1.5) and sampling valve (1.11)；
Integral anaerobic ammoxidation pond is a plug-flow reactor, and the anti-nitre of preposition heterotrophism is passed through in the water outlet in preposition heterotrophic denitrification pond
After change pond outlet pipe (1.10) is connected with the mud return line (2.7) in integral anaerobic ammoxidation pond, enters integration and detest
Anaerobic ammonium oxidation pond, arranges microcellular rubber diaphragm aeration head (2.4), Roots blower (2.6) bottom integral anaerobic ammoxidation pond
Being connected with aeration head (2.4) by air hose (2.8), in integral anaerobic ammoxidation pond, filled polyurethane sponge suspends and fills out
Material (2.1), the specification of single filler is 1.0 × 1.0 × 1.0cm, is respectively provided with dissolved oxygen DO at pond leading portion and back segment
On-line determination instrument (2.2), the most terminally positioned pH on-line determination instrument (2.3).
Sedimentation tank arranges inclined plate packing (3.1), the sedimentation tank base sludge sludge reflux by integral anaerobic ammoxidation pond
Pump (2.5) enters into integral anaerobic ammoxidation pond head end, and the supernatant of sedimentation tank enters into discharge bay；
Discharge bay top arranges system outlet pipe (4.1), and bottom arranges system effluent recycling pump (4.2), system effluent recycling
Pump is connected with the raw water tubes (1.1) in preposition heterotrophic denitrification pond by system effluent recycling pipe (1.15).
2. one kind utilize said apparatus pass through Anammox coupling heterotrophic denitrification biological denitrificaion process high ammonia nitrogen Coal Chemical Industry give up
The method of water, its feature comprises the following steps:
1) from coal chemical industrial waste water treatment plant Aeration tank, activated sludge and starch wastewater treatment factory UASB reactor will obtain
Anaerobic grain sludge be added to preposition heterotrophic denitrification pond according to mass ratio 1: 1, postvaccinal sludge concentration MLSS is
About 16000mg/l；Municipal wastewater treatment plant nitrifying sludge good for activity is added to integral anaerobic ammoxidation pond, after adding
Sludge concentration MLSS be about 7000mg/l；Polyurethane sponge biologic packing material is loaded into integral anaerobic ammonia oxygen simultaneously
Changing in pond, filling rate is the 25-30% of basin's effective volume；
2) coal chemical industrial waste water through pretreatment enters preposition heterotrophic denitrification pond with system water outlet after mixing, and preposition heterotrophism is anti-
Nitrification tank running temperature is 28-31 DEG C, and operation pH value is 7.5-8.3, and hydraulic detention time HRT is 20～36 hours,
HRT is along with coal chemical industrial waste water organic cod concentration and nitrate nitrogen NO in recycling effluent3 -The increase of-N concentration and extend；
3) preposition heterotrophic denitrification pond water outlet enters into integral anaerobic ammoxidation pond, the waterpower in integral anaerobic ammoxidation pond
Time of staying HRT is 36-48 hour, and running temperature is 25～30 DEG C, and operation pH value is 7.1-8.3, dissolved oxygen DO
Maintaining 0.2～0.5mg/L by adjusting aeration rate, return sludge ratio maintains 40%～100%.
4) mixed liquor in integral anaerobic ammoxidation pond is by flowing into discharge bay after sedimentation tank mud-water separation, system final
Processing water to flow out by outlet pipe, system effluent recycling ratio is for 100-400%, along with integral anaerobic ammoxidation pond denitrogenation effect
The raising of rate, system effluent recycling ratio is gradually reduced to about 100% by about 400%.
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| CN108275780A (en) * | 2018-03-22 | 2018-07-13 | 天津城建大学 | The nitrogenous petrochemical wastewater processing unit of novel height and the method for parameter adjustment |
| CN108328872A (en) * | 2018-03-22 | 2018-07-27 | 天津城建大学 | The nitrogenous low carbon-nitrogen ratio sewage processing unit of novel height and its method of adjustment |
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| CN108217934A (en) * | 2018-01-31 | 2018-06-29 | 华南理工大学 | A kind of middle low concentration wastewater low-carbon processing method and processing device of low carbon/nitrogen ratio |
| CN108275780A (en) * | 2018-03-22 | 2018-07-13 | 天津城建大学 | The nitrogenous petrochemical wastewater processing unit of novel height and the method for parameter adjustment |
| CN108328872A (en) * | 2018-03-22 | 2018-07-27 | 天津城建大学 | The nitrogenous low carbon-nitrogen ratio sewage processing unit of novel height and its method of adjustment |
| CN108585190A (en) * | 2018-04-27 | 2018-09-28 | 北京交通大学 | Integral anaerobic ammoxidation handles the device of coal-ethylene glycol sewage |
| CN109534506A (en) * | 2018-12-24 | 2019-03-29 | 衢州学院 | A kind of low C/N is electrically coupled biological carbon and nitrogen removal processing method than waste water |
| CN109534506B (en) * | 2018-12-24 | 2021-04-09 | 衢州学院 | Electric coupling biological carbon and nitrogen removal treatment method for wastewater with low C/N ratio |
| CN109775934A (en) * | 2019-02-27 | 2019-05-21 | 山东本源环境科技有限公司 | A kind of cultivating wastewater purification technique |
| CN110436626A (en) * | 2019-08-08 | 2019-11-12 | 西安建筑科技大学 | A kind of Anammox coupling denitrification Composite denitrification system and quick start method |
| CN111807650A (en) * | 2020-08-19 | 2020-10-23 | 福建海峡环保集团股份有限公司 | Livestock and poultry breeding wastewater CC-HBDP treatment process |
| CN115231770A (en) * | 2022-07-06 | 2022-10-25 | 中国矿业大学(北京) | System and method for treating coal chemical industry wastewater by coupling anaerobic ammonia oxidation of ceramic membrane bioreactor |
| CN115231770B (en) * | 2022-07-06 | 2023-10-24 | 中国矿业大学(北京) | System and method for treating coal chemical wastewater by coupling ceramic membrane bioreactor with anaerobic ammonia oxidation |
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