CN105110567A - Process for advanced treatment of southern large-scale swine wastewater - Google Patents
Process for advanced treatment of southern large-scale swine wastewater Download PDFInfo
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Abstract
The invention relates to a process for advanced treatment of southern large-scale swine wastewater and belongs to the technical field of wastewater treatment. The process comprises the steps that the swine wastewater first enters a regulating tank I, pretreated wastewater is separated through a solid-liquid separator (waste residue can be utilized agriculturally), separated liquid enters a methane tank to undergo anaerobic fermentation for over 7 days, biogas slurry enters a regulating tank II and undergoes precipitation (floating) and reoxygenation for 1 day and then enters a biological packing oxidation tank, remains for 2 days and then enters an ecological oxidation tank; artificial aquatic plants are arranged in the oxidation tank; after treatment for 20 days, the treated wastewater is lifted through a water pump to enter vertical flow constructed wetland, PVC pipe frame type water distribution is adopted for the wetland, and cannas are planted on the surface. The process has the advantages that the wastewater is treated efficiently, the running cost is low, and the method has simplicity in maintenance.
Description
Technical field
The present invention relates to a kind of waste water treatment process, be specifically related to a kind of technique of suitable southern large scale of pig farm Sewage advanced treatment, belong to technical field of waste water processing.
Background technology
The south China especially intensive level of Guangdong and Guangxi Provinces area Large-scale pig farm improves constantly, and the impact of Pig raising wastewater on environment is also on the rise.For western district of Guangdong, Guangdong Province, according to the reduction of discharging requirement of Chinese Ministry of Environmental Protection, the whole nation is promoted dry clear excrement pattern and is reduced discharging, but due to China's the North and South climate difference, the average annual temperature in south is high, high humidity, and northern temperature is low, dry, dry clear excrement (bedding and padding) pattern that the north extensively adopts, is but difficult in southern area realize.Current western district of Guangdong pig industry substantially still adopts traditional water to rush excrement breeding way, and intensive culture level is large compared with high, cultivation amount in addition, causes breeding wastewater generation surprising.In addition, because China's current breeding wastewater mark emission standard is higher, (COD and ammonia nitrogen emission standard are 400mg/L and 80mg/L respectively, " livestock and poultry breeding industry pollutant emission standard " (GB18596-2001)), even if each breeding enterprise can qualified discharge, Tail water reuse is still larger to receiving water body water quality impact.
At present, China's Pig raising wastewater treatment scale Pig raising wastewater tupe mainly contains two kinds: Utilization Mode and industrial treatment pattern.Utilization Mode can be divided into again also field pattern and Natural treatment mode: also field pattern excrement and urine water also field be a kind of traditional, cost-effective method of disposal as fertilizer, can nutrient cycling and utilization be realized, but need a large amount of soil and plant is supporting, there is danger, pollution of area source and heavy metal, the microbiotic of propagating livestock and poultry and zoonosis deposits problems such as the harm of soil; Based on simple oxidation pond and artificial swamp, there is the problems such as occupation of land amount is large, processing efficiency is low, small-sized breeding enterprise many employings Utilization Mode in Natural treatment mode.Industrial treatment pattern, to process efficient, stable water outlet, has become the wastewater treatment mode that large-scale plant is main: N.Bernet etc. utilize ASBR (anaerobic-SBR) technique (2000) to process Pig raising wastewater and find NO
x-N clearance and reflux ratio are inversely proportional to, and during water inlet, when denitrification, aeration, ammonia-nitrogen desorption can improve its clearance, and total organic carbon and total Kjeldahl nitrogen clearance are respectively 81% ~ 91%, 85% ~ 91%; Find during solid-liquid separation+anaerobism that University of Hawaii develops+aerobic+stone filtering technology process Pig raising wastewater that aeration mode is on treatment effect impact comparatively large (P.Y.Yangetal.1999); Ammonia crystallization+anaerobism+aerobic+Wingdale treatment process (P.Y.Yangetal.2003) is at HRT=30h, and process Pig raising wastewater when aeration/non-aeration time, ratio was 1, result shows: TP, COD, TN place to go is respectively 98%, and 93.5%, 95.1%.Large-scale breeding enterprise generally adopts industrial treatment pattern, but because industrialization waste water disposal facility construction cost is higher, and need professional's maintenance and management, so some enterprises are minimizing expense expenditure, waste water treatment engineering does not usually reach design requirements or simply leaves unused.
Artificial swamp---is namely utilized matrix, the triple synergy of physics, chemistry and biology between plant and microorganism three---and is realized dirty water purification (Wang Shihe, 2007) by effects such as filtration, absorption, ion-exchange, plant absorption and microbiological deteriorations.Carrying out purification of water quality by structure artificial swamp starts from 20th century, the 4th international symposium held in Austria Vienna in September, 1996 indicates that artificial wet land system formally enters field of water pollution control (Brix, 1986 as the unique New Wastewater Treatment Technology art of one; U.S.EPA, 2000).Since then, the utilization of artificial swamp is extensive all the more, wherein Europe and the U.S.'s more employing artificial wetland treatment livestock breeding wastewater, and U.S.'s natural conservation Servers Organization has worked out cultivating wastewater purification guide, suggestion artificial swamp B0D
5load is 73kg/hm
2.d, HRT at least 12d.In New Zealand, Japan, Australia and some African countries, Treatment Technology of Constructed Wetland have also been obtained applies (Yang Qiong etc., 2002) widely.
Summary of the invention
The object of this invention is to provide a kind of technique of suitable southern large scale of pig farm Sewage advanced treatment, this wastewater deep treatment process less investment, working cost is low, process is efficient, level of automation is high.
For realizing the object of foregoing invention, the technical scheme that the present invention takes is as follows:
A technique for southern large scale of pig farm Sewage advanced treatment, comprises the steps:
(1) Wastewater Pretreatment: pig excrements and wash-down water breeding wastewater concentrate on equalizing tank I through collection pipe network and form feed liquid, and arrange solid-liquid separating machine at pool side, feed liquid is divided into solid-state ight soil residue material and parting liquid after separator for processing;
(2) natural pond liquid precipitate: parting liquid enters methane-generating pit, through more than 7 days anaerobically fermentings, form biogas and natural pond liquid, natural pond liquid entered equalizing tank II, and after 1-3 days precipitations, form scum silica frost and mud, scum silica frost floating sludge sinks, and natural pond liquid enters biologic packing material oxidation pond;
(3) natural pond liquid process: the natural pond liquid in biologic packing material oxidation pond, utilizes activated sludge process to carry out the process of 2-4 days, bottom aeration;
(4) purify water: biologic packing material oxidation pond water out enters Ecology oxidation pond, the ecosystem that artificial aquatic weed-algae-bacterium is formed is set in the pool and transforms absorption further, treatment time 20-30 days;
(5) deep purifying: Ecology oxidation pond water is out promoted to vertical subsurface flow wetland through pump, wetland adopts pvc pipe frame-type cloth aqueous mode, wetland plant adopts the Canna generalis Bailey of suitable south plantation, and wetland effluent can directly discharge, hydraulic detention time HRT2-10 days.
The biogas that step (2) produces can be used for generating, child care, uses by oneself or supplies periphery peasant family daily.
The biologic packing material of the described biologic packing material oxidation pond of step (3) is black polyethylene shading net, is laid in pond according to forms such as suspension, sinkings; Bottom is located at by aerating apparatus, and aeration rate regulates according to actual needs, and general maintenance dissolved oxygen concentration is 2 ~ 4mg/L.
Step (4) described artificial aquatic weed is polyethylene shading net, is suspended in the pool, for the adherance of alga-bacterium symbiosis according to forms such as suspension, sinkings.
Principle of work of the present invention is:
Breeding wastewater of the present invention is after collecting, the equalizing tank I described in step (1) is transported to by pipeline self, pre-treatment feed liquid is carried out after separating treatment through solid-liquid separating machine, and residue water ratio is not less than 80%, 60%, 60% respectively higher than 50%, TSS, COD, BOD clearance; Make the feed liquid after separation more homogeneous simultaneously, be beneficial to subsequent disposal, improve processing efficiency from entire system.
In methane-generating pit, macromole organic matter decomposition, under the Decomposition of anaerobion, is converted into small molecules by feed liquid, anaerobic bacterium decomposing organic matter, produces biogas.According to the effect of bacterioid each in marsh gas fermentation processes, biogas bacterium can be divided into decomposer and methanobacteria: the organic substance decomposing of complexity is become simple organism and carbonic acid gas (CO by decomposer
2); Methanobacteria is then oxidized simple organism and carbonic acid gas or be reduced into methane.Organonitrogen is converted into NH
4 +-N; The overwhelming majority organophosphorus then absorbed by polyP bacteria and be discharged in feed liquid with phosphate radical form, phosphate radical again with Ca
2+, Mg
2+ionic bond finally forms calcium phosphate precipitation in mud; Sulphur in organic matter is then H by microbial transformation
2s gas is discharged along with biogas.
Natural pond liquid enters equalizing tank II after discharging, and forms scum silica frost and mud, can reduce the TSS entering biologic packing material oxidation pond at Chi Zhongke, simultaneously can natural reaeration.After equalizing tank II water outlet enters biologic packing material oxidation pond, can by NH through active sludge treatment
4 +-N is oxidized to NO
3 --N and NO
2 --N, and NH
4 +-N and NH
4 +directly can there is short distance nitration reaction in-N, by N with N
2or N
2o form discharges.The water outlet of biologic packing material oxidation pond enters Ecology oxidation pond, and the ecosystem that artificial aquatic weed-algae-bacterium formed of dirty pollutant in water in the pool transforms absorption further, thus reaches the object purified water.
Ecology oxidation pond water is extracted into artificial swamp through lift pump, and through frame-type water distributor water distribution uniformity, sewage is by wetland surface vertical downflow, and formation top layer is aerobic, middle level is facultative, the system for handling of bottom anoxic.Artificial swamp utilizes the ecosystem of artificial dielectric, plant, Institute of Micro-biology's composition, carry out physics, chemistry, biological triple synergistic purification, physical sedimentation (filtration) is by the interception of attractive interaction effect and root system of plant between particle, and making can sedimentation and can being removed by stopping by flocculate solids; Chemistry microbial metabolism then utilizes the bacterial metabolism effect parasitized on plant that suspended substance, colloid, soluble solids are resolved into inorganics, removes nitrogen, by N with N by biological nitration-denitrification simultaneously
2or N
2o form discharges.Partly trace element is oxidized by microorganism, plant utilization and is removed through stopping or combine, and bacterium and virus are in and are not suitable for nature being caused in environment to decay and death, and secretions from plant roots has deactivation to intestinal bacteria and pathogenic agent.A considerable amount of nitrogen and phosphorus can be absorbed by plants and remove, perennial plant, and nitrogen, phosphorus once, can be shifted out artificial wet land system by annual harvesting.
The invention has the beneficial effects as follows:
1. present invention process is simple, suitability good, can meet the wastewater treatment requirement on planningization pig farm, southern area completely;
2. processing efficiency is high, and after process system process, effluent quality is far below emission standard, reaches advanced treatment requirement;
3. cost of investment is lower, and process system, based on geotechnological construction cost, needs hurriedly large-scale, expensive device;
4. operation and management expense is low, and in operational process, only solid-liquid separating machine, aeration pump and wetland cloth water pump need outside power consumption, without other running cost; Management is simple, needs personal management hurriedly, and as increased automatic control system, can realize the control regularly to solid-liquid separating machine and water pump, handling cost is lower;
5. Technology reliability is high, system stability and long service life.
Accompanying drawing explanation
Fig. 1 cultivating wastewater purification process schematic representation;
Fig. 2 cultivating wastewater purification process flow diagram;
Wherein 1, the dirty pipe of collection, 2, equalizing tank I, 3, solid-liquid separating machine, 4, waste residue, 5, methane-generating pit, 6, equalizing tank II, 7, aeration tube, 8, air pump, 9, biologic packing material, 10, biologic packing material oxidation pond, 13, wetland water distributor, 14, wetland plant, 16, water outlet overflow port;
Fig. 3 cultivating wastewater purification process section;
Wherein 1, the dirty pipe of collection, 2, equalizing tank I, 3, solid-liquid separating machine, 4, waste residue, 5, methane-generating pit, 6, equalizing tank II, 7, aeration tube, 9, biologic packing material, 10, biologic packing material oxidation pond, 11, Ecology oxidation pond, 12, artificial aquatic weed, 13, wetland water distributor, 14, wetland plant, 15, Wetland Substrate, 16, water outlet overflow port, 17, wetland header.
Embodiment
Be described in further details the present invention below by example, these examples are only used for the present invention is described, do not limit the scope of the invention.
Embodiment 1
(1) Wastewater Pretreatment: the breeding wastewater such as pig excrements and wash-down water concentrates on equalizing tank I through collecting pipe network, and arrange solid-liquid separating machine at pool side, feed liquid is divided into solid-state ight soil residue material and feed liquid after separator for processing;
(2) natural pond liquid precipitate: feed liquid enters methane-generating pit, through 7 days anaerobically fermentings, form biogas and natural pond liquid, natural pond liquid entered equalizing tank II, and after 1 day precipitation, form scum silica frost and mud, scum silica frost floating sludge sinks, and natural pond liquid enters biologic packing material oxidation pond;
(3) natural pond liquid process: the natural pond liquid in biologic packing material oxidation pond, utilizes activated sludge process to carry out the process of 2 days, bottom aeration, and maintenance dissolved oxygen concentration is 2mg/L;
(4) purify water: the water outlet of biologic packing material oxidation pond enters Ecology oxidation pond, the ecosystem that artificial aquatic weed-algae-bacterium is formed is set in the pool and transforms absorption further, 20 days treatment times;
(5) deep purifying: Ecology oxidation pond water is promoted to vertical subsurface flow wetland through pump, wetland adopts pvc pipe frame-type cloth aqueous mode, and wetland plant adopts the Canna generalis Bailey of suitable south plantation, plants by 30 × 30mm spacing, wetland effluent can directly discharge, HRT2 days.
Embodiment 2
(1) Wastewater Pretreatment: the breeding wastewater such as pig excrements and wash-down water concentrates on equalizing tank I through collecting pipe network, and arrange solid-liquid separating machine at pool side, feed liquid is divided into solid-state ight soil residue material and feed liquid after separator for processing;
(2) natural pond liquid precipitate: feed liquid enters methane-generating pit, through 12 days anaerobically fermentings, form biogas and natural pond liquid, natural pond liquid entered equalizing tank II, and after 5 days precipitations, form scum silica frost and mud, scum silica frost floating sludge sinks, and natural pond liquid enters biologic packing material oxidation pond;
(3) natural pond liquid process: the natural pond liquid in biologic packing material oxidation pond, utilizes activated sludge process to carry out the process of 10 days, bottom aeration, and maintenance dissolved oxygen concentration is 4mg/L;
(4) purify water: the water outlet of biologic packing material oxidation pond enters Ecology oxidation pond, arrange the ecosystem that artificial aquatic weed-algae-bacterium is formed in the pool and transform absorption further, the treatment time is no less than 30 days;
(5) deep purifying: Ecology oxidation pond water is promoted to vertical subsurface flow wetland through pump, wetland adopts pvc pipe frame-type cloth aqueous mode, and wetland plant adopts the Canna generalis Bailey of suitable south plantation, plants by 30 × 30mm spacing, wetland effluent can directly discharge, HRT8 days.
Embodiment 3
(1) Wastewater Pretreatment: the breeding wastewater such as pig excrements and wash-down water concentrates on equalizing tank I through collecting pipe network, and arrange solid-liquid separating machine at pool side, feed liquid is divided into solid-state ight soil residue material and feed liquid after separator for processing;
(2) natural pond liquid precipitate: feed liquid enters methane-generating pit, through 10 days anaerobically fermentings, form biogas and natural pond liquid, natural pond liquid entered equalizing tank II, and after 3 days precipitations, form scum silica frost and mud, scum silica frost floating sludge sinks, and natural pond liquid enters biologic packing material oxidation pond;
(3) natural pond liquid process: the natural pond liquid in biologic packing material oxidation pond, utilizes activated sludge process to carry out the process of 5 days, bottom aeration, and maintenance dissolved oxygen concentration is 3mg/L;
(4) purify water: the water outlet of biologic packing material oxidation pond enters Ecology oxidation pond, arrange the ecosystem that artificial aquatic weed-algae-bacterium is formed in the pool and transform absorption further, the treatment time is no less than 25 days;
(5) deep purifying: Ecology oxidation pond water is promoted to vertical subsurface flow wetland through pump, wetland adopts pvc pipe frame-type cloth aqueous mode, and wetland plant adopts the Canna generalis Bailey of suitable south plantation, plants by 30 × 30mm spacing, wetland effluent can directly discharge, HRT5 days.
Embodiment 4
The total floor space of Guangdong Intensive Farm of Pig Raising 100 mu, pig farm year breeding stock 5000, day waste water generation be no more than 300 tons.
Engineering construction content comprises:
1. equalizing tank I, cylindrical, diameter 5m, dark 6m;
2. purchase commercial solid-liquid separating machine, residue throughput about 1 ton/hour;
3. build 6, methane-generating pit, each 400m3;
4. equalizing tank II, L × B × H=40.0m × 3.0m × 3.2m, available depth 3.0m, HRT1d.
5. biologic packing material oxidation pond, the little Chi aeration oxidation pool of 4 L × B × H=20.0m × 2.5m × 3.2m is connected mutually, inside establishes biologic packing material;
6. Ecology oxidation pond: the Ecology oxidation pond treatment system of total area 4000m2, average depth is not less than 2m, inside establishes artificial aquatic weed;
7. artificial swamp, L × B × H=53.0m × 30m × 1m, selects particle diameter 10-25mm gravel to be matrix, wetland sets up Anti-seeping technology with bottom, and the matrix degree of depth is not more than 80mm, and PVC header is established in bottom, frame-type water distributor is laid with pvc pipe in wetland surface, by 30 × 30mm spacing plantation Canna generalis Bailey.
Table 1 process system each processing unit water-in and water-out water quality table look-up (unit: except mg/L, PH)
| Project | COD cr | BOD 5 | SS | NH 4 +-N | TP | PH |
| Pretreatment pool is intake | ≥20000 | ≥8000 | ≥10000 | ≥800 | - | 6-9 |
| Pretreatment pool water outlet (methane-generating pit water inlet) | ≤8000 | ≤4000 | ≤2000 | ≤800 | - | 6-9 |
| Methane-generating pit water outlet (settling tank water inlet) | ≤1500 | ≤800 | ≤1200 | ≤600 | ≤80 | 6-9 |
| Settling tank water outlet (aeration tank water inlet) | ≤1000 | ≤600 | ≤1000 | ≤500 | ≤70 | 6-9 |
| Aeration tank water outlet (oxidation pond water inlet) | ≤300 | ≤100 | ≤300 | ≤100 | ≤40 | 6-9 |
| Oxidation pond water (wetland water inlet) | ≤150 | ≤100 | ≤50 | ≤40 | ≤20 | 6-9 |
| Wetland effluent | ≤80 | ≤50 | ≤20 | ≤20 | ≤8 | 6-9 |
Claims (4)
1. a technique for southern large scale of pig farm Sewage advanced treatment, is characterized in that: comprise the steps:
(1) Wastewater Pretreatment: pig excrements and wash-down water breeding wastewater concentrate on equalizing tank I through collection pipe network and form feed liquid, and arrange solid-liquid separating machine at pool side, feed liquid is divided into solid-state ight soil residue material and parting liquid after separator for processing;
(2) natural pond liquid precipitate: parting liquid enters methane-generating pit, through more than 7 days anaerobically fermentings, form biogas and natural pond liquid, natural pond liquid entered equalizing tank II, and after 1-3 days precipitations, form scum silica frost and mud, scum silica frost floating sludge sinks, and natural pond liquid enters biologic packing material oxidation pond;
(3) natural pond liquid process: the natural pond liquid in biologic packing material oxidation pond, utilizes activated sludge process to carry out the process of 2-4 days, bottom aeration;
(4) purify water: biologic packing material oxidation pond water out enters Ecology oxidation pond, the ecosystem that artificial aquatic weed-algae-bacterium is formed is set in the pool and transforms absorption further, treatment time 20-30 days;
(5) deep purifying: Ecology oxidation pond water is out promoted to vertical subsurface flow wetland through pump, wetland adopts pvc pipe frame-type cloth aqueous mode, wetland plant adopts the Canna generalis Bailey of suitable south plantation, and wetland effluent can directly discharge, hydraulic detention time HRT2-10 days.
2. the technique of a kind of southern large scale of pig farm Sewage advanced treatment according to claim 1, is characterized in that: the biogas that step (2) produces can be used for generating, child care, personal or daily for periphery peasant family.
3. the technique of a kind of southern large scale of pig farm Sewage advanced treatment according to claim 1, is characterized in that: the biologic packing material of the described biologic packing material oxidation pond of step (3) is black polyethylene shading net, is laid in pond according to suspension, sinking form; Bottom is located at by aerating apparatus, and aeration rate regulates according to actual needs, and maintenance dissolved oxygen concentration is 2 ~ 4mg/L.
4. the technique of a kind of southern large scale of pig farm Sewage advanced treatment according to claim 1, is characterized in that: step (4) described artificial aquatic weed is polyethylene shading net, is suspended in the pool, for the adherance of alga-bacterium symbiosis according to suspension, sinking form.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105585210A (en) * | 2015-12-23 | 2016-05-18 | 常熟理工学院 | Novel technology for treating aquaculture wastewater of fungus-aquatic plant symbiotic system |
| CN106946414A (en) * | 2017-04-28 | 2017-07-14 | 重庆蓬辖生猪养殖有限公司 | A kind of Pig farm wastewater treatment system |
| CN108358389A (en) * | 2018-03-09 | 2018-08-03 | 南通华多种猪繁育有限公司 | A kind of harmless processing of large-scale pig farm biogas slurry and utilization of resources technique |
| CN108383331A (en) * | 2018-03-30 | 2018-08-10 | 南昌大学 | A kind of combined stabilization pond that antiseepage film is linked together processing livestock breeding wastewater system |
| CN109502914A (en) * | 2018-12-24 | 2019-03-22 | 江西洁地环境治理生态科技有限公司 | A kind of sewage disposal system using chlorella processing biogas slurry |
| CN112194319A (en) * | 2020-09-30 | 2021-01-08 | 广州市龙运博环保技术有限公司 | Method for ecologically restoring water body of sewage pond |
| CN112479480A (en) * | 2020-10-27 | 2021-03-12 | 海南南洋新鑫环保科技有限公司 | Novel pig-raising wastewater treatment process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492230A (en) * | 2009-03-12 | 2009-07-29 | 农业部环境保护科研监测所 | Comprehensive processing process and system for cultivation wastewater |
| CN101531437A (en) * | 2008-03-12 | 2009-09-16 | 中国科学院成都生物研究所 | Compound treatment method of wastewater in pig farm |
-
2015
- 2015-09-16 CN CN201510588006.XA patent/CN105110567A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531437A (en) * | 2008-03-12 | 2009-09-16 | 中国科学院成都生物研究所 | Compound treatment method of wastewater in pig farm |
| CN101492230A (en) * | 2009-03-12 | 2009-07-29 | 农业部环境保护科研监测所 | Comprehensive processing process and system for cultivation wastewater |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105585210A (en) * | 2015-12-23 | 2016-05-18 | 常熟理工学院 | Novel technology for treating aquaculture wastewater of fungus-aquatic plant symbiotic system |
| CN106946414A (en) * | 2017-04-28 | 2017-07-14 | 重庆蓬辖生猪养殖有限公司 | A kind of Pig farm wastewater treatment system |
| CN108358389A (en) * | 2018-03-09 | 2018-08-03 | 南通华多种猪繁育有限公司 | A kind of harmless processing of large-scale pig farm biogas slurry and utilization of resources technique |
| CN108383331A (en) * | 2018-03-30 | 2018-08-10 | 南昌大学 | A kind of combined stabilization pond that antiseepage film is linked together processing livestock breeding wastewater system |
| CN109502914A (en) * | 2018-12-24 | 2019-03-22 | 江西洁地环境治理生态科技有限公司 | A kind of sewage disposal system using chlorella processing biogas slurry |
| CN109502914B (en) * | 2018-12-24 | 2023-10-31 | 江西洁地环境治理生态科技有限公司 | Sewage treatment system for treating biogas slurry by using chlorella |
| CN112194319A (en) * | 2020-09-30 | 2021-01-08 | 广州市龙运博环保技术有限公司 | Method for ecologically restoring water body of sewage pond |
| CN112479480A (en) * | 2020-10-27 | 2021-03-12 | 海南南洋新鑫环保科技有限公司 | Novel pig-raising wastewater treatment process |
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Application publication date: 20151202 |