CN109020086A - A kind of aquaculture wastewater and waste gas treatment process - Google Patents
A kind of aquaculture wastewater and waste gas treatment process Download PDFInfo
- Publication number
- CN109020086A CN109020086A CN201811029605.8A CN201811029605A CN109020086A CN 109020086 A CN109020086 A CN 109020086A CN 201811029605 A CN201811029605 A CN 201811029605A CN 109020086 A CN109020086 A CN 109020086A
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- Prior art keywords
- aquaculture wastewater
- sewage
- stripping
- enters
- exhaust gas
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1431—Pretreatment by other processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1431—Pretreatment by other processes
- B01D53/145—Pretreatment by separation of solid or liquid material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/406—Ammonia
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
Abstract
The present invention relates to a kind of aquaculture wastewater and waste gas treatment process, comprising the following steps: (1) solid-liquid separating machine: carrying out solid-liquid separation treatment；(2) pH is adjusted: adjusting the pH value of sewage；(3) anaerobic fermentation: enter UASB reactor and carry out anaerobic fermentation processing, the exhaust gas of generation is handled by exhaust treatment system；(4) air-flotation process: entering air-flotation process pond, and the microparticle object in aquaculture wastewater is removed；(5) precipitation process: precipitating in into sedimentation basin, final supernatant discharge；(6) disinfect: the aquaculture wastewater supernatant after precipitation process enters in disinfecting tank, and disinfectant discharges after carrying out sterilizing processing to aquaculture wastewater.Treatment process design of the present invention is reasonable, and feasibility is high, and livestock and poultry cultivation sewage can be effectively treated in practical, good sewage processing effect, it is ensured that sewage qualified discharge, and the exhaust gas generated in sewage disposal process is effectively addressed, and avoids atmosphere pollution.
Description
Technical field
The present invention relates to a kind of aquaculture wastewater and waste gas treatment process, belong to livestock and poultry cultivation technical field of sewage.
Background technique
Livestock and poultry cultivation sewage belongs to difficult high concentration organic sewage；The COD of livestock and poultry livestock and poultry cultivation sewage is usually up to
6000mg/L, water quality are in sauce yellow, and sewage ammonia nitrogen content is high；For livestock and poultry cultivation sewage disposal technology, disclosed in the prior art
Livestock and poultry cultivation sewage treatment process mainly has the following two problems:
1. theoretical on the high side, i.e., mainly in laboratory in experiment process, if wanting industrial application, it is also necessary to sentence by pilot scale
It is disconnected to determine, therefore cannot be guaranteed actual processing effect；
2. the exhaust gas that livestock and poultry cultivation sewage generates during processing is difficult to be effectively addressed, it is easy to cause atmosphere pollution, no
Conducive to environmental protection.
Existing livestock and poultry cultivation sewage treatment process is poor to wastewater treatment efficiency in use, makes to the use of people
At certain inconvenience.
Summary of the invention
In view of this, that the object of the present invention is to provide a kind of feasibilities is high, the aquaculture wastewater of good sewage processing effect and
Waste gas treatment process.
The present invention is realized using following scheme: a kind of aquaculture wastewater and waste gas treatment process, comprising the following steps: (1)
Solid-liquid separating machine: aquaculture wastewater is sent into solid-liquid separating machine and carries out solid-liquid separation treatment by cutting pump；(2) pH is adjusted: being separated by solid-liquid separation
Aquaculture wastewater afterwards enters the pH value that conditioning tank adjusts sewage；(3) anaerobic fermentation: it is anti-that the aquaculture wastewater after pH adjusting enters UASB
Device is answered to carry out anaerobic fermentation processing, the exhaust gas of generation is handled by exhaust treatment system；(4) air-flotation process: anaerobic fermentation
Aquaculture wastewater afterwards enters air-flotation process pond, generates a large amount of micro-bubble by air bearing principle, micro-bubble absorption cultivation is dirty
Tiny particles content in water removes the microparticle object in aquaculture wastewater；(5) precipitation process: aquaculture wastewater after air-flotation process into
Enter and is precipitated in sedimentation basin, final supernatant discharge；(6) disinfect: the aquaculture wastewater supernatant after precipitation process enters
In disinfecting tank, disinfectant discharges after carrying out sterilizing processing to aquaculture wastewater.
Further, the exhaust treatment system in step (3) includes steam-water separator, desulfurizing tower and ammonia stripping device；
The exhaust gas that UASB reactor generates first passes through steam-water separator and carries out steam-water separation, then carries out at desulfurization by desulfurizing tower
Reason, finally enters back into the ammonia gone in removing exhaust gas in ammonia stripping device.
Further, the ammonia stripping device includes stripping tower, and bottom is fixedly connected with bottom plate in the stripping tower, is blown
It is provided with fixed plate in the middle part of Tuo Tanei, is provided between bottom plate and fixed plate and is slidably matched and can move up and down with stripping inner wall of tower
Absorption fill plate, absorptions filling plate is hollow structure and absorbs filling intralamellar part cavity and be filled with absorbent tampons, described
Through-hole is distributed on bottom plate and fixed plate, the liquid pass hole communicated with internal cavity is distributed in the absorption filling plate upper and lower surface；
Stripping tower lower sides are provided with the air inlet on the upside of bottom plate, are provided with exhaust pipe at the top of stripping tower, stripping tower top is set
It is equipped with the inlet tube to inject absorbing liquid.
Further, the inlet tube passes through stripping tower upper portion side wall and stretches to above fixed plate, is arranged on inlet tube
There are multiple spray heads；It is provided with waterproof machine on the bottom plate, vertical screw rod, vertical spiral shell are coaxially connected on the main shaft of waterproof machine
Bar pass through absorb filling plate, absorb filling plate on offer with vertical screw flight cooperation threaded hole, vertical screw rod upper end with
Fixed plate rotatable engagement.
Further, the stripping tower bottom is connected with drain pipe, and valve is provided on drain pipe, is gone back on the drain pipe
Side is connected to the circulation pipe towards stripping tower top, and elevator pump is connected on circulation pipe, and the water outlet of circulation pipe is also equipped with spray head.
Compared with prior art, the invention has the following advantages: treatment process design of the present invention is reasonable, feasibility
Livestock and poultry cultivation sewage can be effectively treated in height, practical, good sewage processing effect, it is ensured that sewage qualified discharge, and at sewage
The exhaust gas generated during reason is effectively addressed, and avoids atmosphere pollution, ammonia stripping is high-efficient in waste gas treatment process, keeps away
Ammonia emission is exempted from.
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, specific embodiment and phase will be passed through below
Attached drawing is closed, invention is further described in detail.
Detailed description of the invention
Fig. 1 is the functional block diagram of present invention process；
Fig. 2 is the structural schematic diagram of ammonia stripping device in the embodiment of the present invention；
Figure label explanation: 1- stripping tower；2- fixed plate；3- bottom plate；4- waterproof machine；The vertical screw rod of 5-；6- absorbs filling plate；
7- air inlet；8- drain pipe；9- circulation pipe；10- exhaust pipe；11- inlet tube；12- spray head.
Specific embodiment
As shown in Figure 1 and 2, a kind of aquaculture wastewater and waste gas treatment process, comprising the following steps: (1) solid-liquid separating machine:
Aquaculture wastewater is sent into solid-liquid separating machine and carries out solid-liquid separation treatment by cutting pump, and the waste residue after being separated is fabricated to organic fertilizer；(2)
PH is adjusted: the aquaculture wastewater after separation of solid and liquid enters conditioning tank, adds sodium hydroxide, raw stone into aquaculture wastewater by conditioning tank
Ash etc. adjusts the pH value of sewage；(3) anaerobic fermentation: the aquaculture wastewater after pH is adjusted enters UASB reactor progress anaerobic fermentation
Processing, the exhaust gas of generation are handled by exhaust treatment system, and sewage separates in UASB reactor with sludge, organic matter drop
Low, the exhaust gas of generation is mainly ammonia and organic gas；(4) air-flotation process: the aquaculture wastewater after anaerobic fermentation enters air bearing
Processing pond generates a large amount of micro-bubble by air bearing principle, and micro-bubble adsorbs tiny particles content in aquaculture wastewater, will cultivate
Microparticle object removal in sewage；(5) precipitation process: the aquaculture wastewater after air-flotation process, which enters in sedimentation basin, to be precipitated, most
Whole supernatant discharge；(6) disinfect: the aquaculture wastewater supernatant after precipitation process enters in disinfecting tank, disinfectant pair
Aquaculture wastewater discharges after carrying out sterilizing processing.
In the present embodiment, the exhaust treatment system in step (3) includes steam-water separator, desulfurizing tower and ammonia stripping dress
It sets；The exhaust gas that UASB reactor generates first passes through steam-water separator and carries out steam-water separation, is then carrying out desulfurization by desulfurizing tower
Processing, removes sulphur ingredient in removing exhaust gas, finally enters back into the ammonia gone in removing exhaust gas in ammonia stripping device, makes finally to obtain useless
Gas discharge is for people to use.
In the present embodiment, the ammonia stripping device includes stripping tower 1, and bottom is fixedly connected in the stripping tower 1
Bottom plate 3, the interior middle part of stripping tower 1 are provided with fixed plate 2, are provided between bottom plate 3 and fixed plate 2 and are slidably matched with stripping inner wall of tower
And plate 6 is filled in absorption moving up and down, the absorptions filling plate 6 is hollow structure and absorbs and fill 6 internal cavity of plate and fill out
Filled with absorbent tampons, through-hole is distributed on the bottom plate 3 and fixed plate 2, absorption filling 6 upper and lower surface of plate is distributed with and inside
The liquid pass hole that cavity communicates；1 lower sides of stripping tower are provided with the air inlet 7 positioned at 3 upside of bottom plate, for being passed through sewage treatment
The exhaust gas that middle UASB reactor generates is provided with exhaust pipe 10 at the top of stripping tower 1, and 1 top of stripping tower is provided with inhales to inject
The inlet tube 11 of liquid is received, using calcium chloride, saturated salt solution etc., absorbing liquid should be avoided to waterproof machine 4 and vertical spiral shell absorbing liquid
Bar 5 generates corrosiveness.
In the present embodiment, the inlet tube 11 passes through 1 upper portion side wall of stripping tower and stretches to 2 top of fixed plate, feed liquor
Multiple spray heads 12 are provided on pipe 11；It is provided with waterproof machine 4 on the bottom plate 3, is coaxially connected on the main shaft of waterproof machine 4
Vertical screw rod 5, vertical screw rod 5, which passes through, absorbs filling plate 6, absorbs and offers the spiral shell being threadedly engaged with vertical screw rod 5 on filling plate 6
Pit, vertical 5 upper end of screw rod and 2 rotatable engagement of fixed plate.
In the present embodiment, 1 bottom of stripping tower is connected with drain pipe 8, and valve, the row are provided on drain pipe 8
Also side is connected to the circulation pipe 9 towards stripping tower top in liquid pipe, is connected with elevator pump on circulation pipe, the water outlet of circulation pipe is also set
It is equipped with spray head.
After exhaust gas enters in stripping tower 1, inlet tube 11 is passed through absorbing liquid, absorbing liquid by the through-hole in fixed plate 2 into
Enter to absorb and soak absorbent tampons in filling plate 6, exhaust gas is moved upwardly into absorbent tampons after entering in stripping tower 1, and absorbing liquid absorbs
Ammonia in exhaust gas, and the work of waterproof machine 4 drives absorption filling plate 6 to move down, the exhaust gas pressure of lower part increases in stripping tower 1
Greatly, concentration improves, and promotes the infiltration rate of absorbent tampons, and the gas after deamination is discharged by exhaust pipe 10, extra absorbing liquid
It is discharged by drain pipe 8, absorbing liquid circulation is further passed through in desulfurizing tower 1 by elevator pump 9, and improve absorbing liquid utilizes effect
Rate is conducive to enterprise and saves cost.
Livestock and poultry cultivation sewage can be effectively treated in treatment process of the present invention, it is ensured that sewage qualified discharge, and sewage treatment
The exhaust gas generated in journey is effectively addressed, and avoids atmosphere pollution, and ammonia stripping is high-efficient in waste gas treatment process, avoids
Ammonia emission.
Above-listed preferred embodiment, has been further described the object, technical solutions and advantages of the present invention, is answered
Understand, the foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of aquaculture wastewater and waste gas treatment process, it is characterised in that: the following steps are included: (1) solid-liquid separating machine: cutting
Aquaculture wastewater is sent into solid-liquid separating machine and carries out solid-liquid separation treatment by pump；(2) pH is adjusted: the aquaculture wastewater after separation of solid and liquid enters
The pH value of conditioning tank adjusting sewage；(3) anaerobic fermentation: the aquaculture wastewater after pH is adjusted enters UASB reactor progress anaerobic fermentation
Processing, the exhaust gas of generation are handled by exhaust treatment system；(4) air-flotation process: the aquaculture wastewater after anaerobic fermentation enters
Air-flotation process pond generates a large amount of micro-bubble by air bearing principle, and micro-bubble adsorbs tiny particles content in aquaculture wastewater, will
Microparticle object removal in aquaculture wastewater；(5) precipitation process: the aquaculture wastewater after air-flotation process, which enters, to be occurred to sink in sedimentation basin
It forms sediment, final supernatant discharge；(6) disinfect: the aquaculture wastewater supernatant after precipitation process enters in disinfecting tank, disinfection
Agent is discharged after carrying out sterilizing processing to aquaculture wastewater.
2. aquaculture wastewater according to claim 1 and waste gas treatment process, it is characterised in that: the exhaust gas in step (3)
Processing system includes steam-water separator, desulfurizing tower and ammonia stripping device；The exhaust gas that UASB reactor generates first passes through carbonated drink point
Steam-water separation is carried out from device, desulfurization process is then being carried out by desulfurizing tower, it is useless finally to enter back into removal in ammonia stripping device
Ammonia in gas.
3. aquaculture wastewater according to claim 2 and waste gas treatment process, it is characterised in that: the ammonia stripping device
Including stripping tower, bottom is fixedly connected with bottom plate in the stripping tower, and middle part is provided with fixed plate, bottom plate and fixation in stripping tower
It is provided with and is slidably matched with stripping inner wall of tower and absorption moving up and down filling plate between plate, absorptions filling plate is hollow
Structure and filling intralamellar part cavity is absorbed filled with absorbent tampons, through-hole, the absorption is distributed on the bottom plate and fixed plate
The liquid pass hole communicated with internal cavity is distributed in filling plate upper and lower surface；Stripping tower lower sides are provided on the upside of bottom plate
Air inlet, stripping tower top are provided with exhaust pipe, and stripping tower top is provided with the inlet tube to inject absorbing liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811029605.8A CN109020086A (en) | 2018-09-05 | 2018-09-05 | A kind of aquaculture wastewater and waste gas treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811029605.8A CN109020086A (en) | 2018-09-05 | 2018-09-05 | A kind of aquaculture wastewater and waste gas treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109020086A true CN109020086A (en) | 2018-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811029605.8A Pending CN109020086A (en) | 2018-09-05 | 2018-09-05 | A kind of aquaculture wastewater and waste gas treatment process |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104474852A (en) * | 2014-11-20 | 2015-04-01 | 周淑华 | Ammonia gas absorbing and treating device and absorbing method thereof |
| CN205061800U (en) * | 2015-09-11 | 2016-03-02 | 武汉市宜能环保科技有限公司 | Large -scale pig farm advanced waste treatment system |
| CN105753270A (en) * | 2016-05-06 | 2016-07-13 | 广州桑尼环保科技有限公司 | Water purifying system suitable for high-ammonia nitrogen livestock and poultry breeding wastewater |
| CN107200431A (en) * | 2017-05-31 | 2017-09-26 | 广东维清环境工程有限公司 | A kind of Pig raising wastewater deep treatment method |
| CN107381977A (en) * | 2017-09-18 | 2017-11-24 | 上海汉盛环保科技有限公司 | Culturing wastewater processing system and its processing method |
| CN108275818A (en) * | 2018-01-25 | 2018-07-13 | 南昌大学 | The quick recovery system of ammonia nitrogen in a kind of high ammonia nitrogen waste water of livestock poultry |
-
2018
- 2018-09-05 CN CN201811029605.8A patent/CN109020086A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104474852A (en) * | 2014-11-20 | 2015-04-01 | 周淑华 | Ammonia gas absorbing and treating device and absorbing method thereof |
| CN205061800U (en) * | 2015-09-11 | 2016-03-02 | 武汉市宜能环保科技有限公司 | Large -scale pig farm advanced waste treatment system |
| CN105753270A (en) * | 2016-05-06 | 2016-07-13 | 广州桑尼环保科技有限公司 | Water purifying system suitable for high-ammonia nitrogen livestock and poultry breeding wastewater |
| CN107200431A (en) * | 2017-05-31 | 2017-09-26 | 广东维清环境工程有限公司 | A kind of Pig raising wastewater deep treatment method |
| CN107381977A (en) * | 2017-09-18 | 2017-11-24 | 上海汉盛环保科技有限公司 | Culturing wastewater processing system and its processing method |
| CN108275818A (en) * | 2018-01-25 | 2018-07-13 | 南昌大学 | The quick recovery system of ammonia nitrogen in a kind of high ammonia nitrogen waste water of livestock poultry |
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Application publication date: 20181218 |