CN203878024U - Wastewater treatment system for culture farm - Google Patents
Wastewater treatment system for culture farm Download PDFInfo
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- CN203878024U CN203878024U CN201420242608.0U CN201420242608U CN203878024U CN 203878024 U CN203878024 U CN 203878024U CN 201420242608 U CN201420242608 U CN 201420242608U CN 203878024 U CN203878024 U CN 203878024U
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Abstract
The utility model relates to a wastewater treatment system for a culture farm. The wastewater treatment system comprises a solid-liquid separating device, an adjusting pre-sedimentation tank, an anaerobic reaction tank, a first reaction sedimentation tank, a biochemical tank, a second reaction sedimentation tank and an oxidation pond which are arranged sequentially, wherein the anaerobic reaction tank is connected with a gas-water separator, the gas-water separator is connected with a gas storage tank through a desulfurization device, and a biogas utilization system is formed by the gas-water separator, the desulfurization device and the gas storage tank; the adjusting pre-sedimentation tank, the anaerobic reaction tank and the second reaction sedimentation tank are respectively connected with a concentrating tank, and the concentrating tank is connected with a filter press; a first circulation system is formed between the first reaction sedimentation tank and the adjusting pre-sedimentation tank, a second circulation system is formed between the second reaction sedimentation tank and the biochemical tank, and a third circulation system is formed between the second reaction sedimentation tank and the adjusting pre-sedimentation tank. According to the wastewater treatment system, standardized wastewater discharging, sludge recycling treatment and biogas utilization are integrated, so as to achieve the aim of effectively and reasonably utilizing resources.
Description
Technical field
The utility model relates to a kind of Waste Water Treatment, relates in particular to a kind of waste water treatment system for nursery.
Background technology
Aquaculture waste water belongs to the high concentrated organic wastewater that is rich in a large amount of pathogenic agent, and direct discharge enters water body or storage place is improper, is subject to rain-out to enter water body, may cause the severe exacerbation of surface water or quality of groundwater.Because the leaching of livestock and poultry fecaluria is very strong, the leaching amounts such as the nitrogen in fecaluria, phosphorus and water soluble organic substance are very large, if do not dealt carefully with, will enter Water table polluted underground water by rainwash and diafiltration.On the impact of surface water main manifestations be, large amount of organic matter enters after water body, organic decomposition, by the dissolved oxygen consuming in a large number in water, makes water body smelly; After dissolved oxygen in water body significantly declines, large amount of organic matter can under anaerobic continue to decompose, and in decomposition, will produce the toxic gases such as methane, hydrogen sulfide, causes hydrobiont mortality; A large amount of suspended substances in waste water can make water body muddy, the photosynthesis that reduces algae in water, limits hydrobiological normal activity, makes the hydrobiont of Organic pollutants sensitivity dead gradually, thereby further aggravate water bottom anoxic, water body assimilative capacity is reduced; Nitrogen, phosphorus can make body eutrophication, the result of eutrophication can make in water body nitrate and nitrite concentration too high, if it is poisoning that people and animals' long-term drinking can cause, and the growth of some poisonous algae and amount reproduction can discharge a large amount of toxin in water body, cause the mortality of hydrocoles, thereby seriously destroyed water ecology balance; Some germs in fecaluria, virus etc. may cause some epiphytotics propagation etc. with water flow.
In prior art, after aquaculture waste water is processed, toward contact, exist waste water to be difficult to meet the defects such as emission standard, energy consumption is large, running cost is high, stench is serious.
Utility model content
In order to overcome the defect of prior art, the utility model for high organic concentration, high suspended matter concentration, wastewater with high ammonia nitrogen concentration a kind of less investment is provided, energy consumption is low, running cost is low, process water outlet meets the waste water treatment system for nursery that emission standard requires.
A waste water treatment system for nursery, described system comprises equipment for separating liquid from solid, adjusting preliminary sedimentation tank, anaerobic reation pool, the first reaction settling basin, biochemistry pool, the second reaction settling basin and the oxidation pond arranging in turn; Described anaerobic reation pool is connected with air water separator, and described air water separator is connected with gas-holder by desulfurizer, and described air water separator, desulfurizer and gas-holder form methane utilizing system; Described adjusting preliminary sedimentation tank, anaerobic reation pool, the second reaction settling basin are connected with concentration basin respectively, and described concentration basin is connected with pressure filter; Between described the first reaction settling basin and adjusting preliminary sedimentation tank, form first recycle system, between the second reaction settling basin and biochemistry pool, form second recycle system, between the second reaction settling basin and adjusting preliminary sedimentation tank, form third circulation system.
In the waste water that general plant emits, solid suspension content is very high, reaches as high as 160000mg/L, and corresponding organic content is also very high, by solid-liquid separation, can make the pollutant load amount of liquid portion greatly reduce; Secondly, by solid-liquid separation, can prevent that larger solids from entering subsequent disposal link, prevent the obstruction damage of equipment etc.In addition, before Anaerobic Digestion, carry out solid-liquid separation and also can increase anaerobic digestion maintainability, reduce the size of anaerobic reactor and the required residence time, reduce facility investment and improve the removal efficiency of COD.Solid-liquid separation technique generally comprises: sieving, centrifugal, filter, floating except operations such as, sedimentation, precipitation, flocculations.
Organic waste water for this high density of plant, adopt anaerobic reation pool to carry out anaerobic digestion process and can under lower running cost, effectively remove a large amount of dissolved organic matters, COD clearance reaches 85%～90%, and can kill disease carrying germ, is conducive to the epidemic prevention of plant.The waste water that feces of livestock and poultry and plant produce is valuable resource, anaerobic reation pool is connected with methane utilizing system, process biogas fermentation technology (Anaerobic Digestion) both can realize innoxious, can also reclaim biogas and organic fertilizer simultaneously, reached effective utilization of resource.
The first reaction settling basin, biochemistry pool, the second reaction settling basin form aerobic treatment system, the excess sludge that aerobic treatment system produces also can drain back to adjusting preliminary sedimentation tank, enter again anaerobic reactor, can realize the object of reducing sludge volume, can greatly reduce sludge yield accordingly, alleviate routine work amount, save running cost.By the sludge reflux of aerobic treatment system, can also carry out the process of nitration denitrification, improve ammonia nitrogen processing efficiency.
Preferably, described equipment for separating liquid from solid comprises solid-liquid separator and grille well, and described grille well is arranged on solid-liquid separator and regulates between preliminary sedimentation tank.Regulate the front end of preliminary sedimentation tank to be provided with grille well, for tackling large suspended solid as foreign material such as pig manures.
Preferably, between described the first reaction settling basin and biochemistry pool, be provided with intermediate buffering pond.Improve the stability for the treatment of system.
Preferably, described anaerobic reation pool adopts up flow anaerobic sludge blanket reactor.
Anaerobic treatment is exactly to make livestock and poultry liquid dung under the condition of anaerobism, and through the fermentative action of microorganism, the organic matter in liquid dung is decomposed and produce the process of a certain amount of biogas by microorganism.Therefore, the object that can say anaerobic treatment in other words effect has two, and one is to process pollutent to reduce and pollute, and the 2nd, Biogas provides the energy for life and production.Up flow anaerobic sludge blanket reactor (UASB) is first liquid dung to be carried out to separation, only process organic waste water, it has, and reactor volume is little, less investment, convenient management, treatment effect are good, organic loading and hydraulic load is good, impact resistance is strong, the advantage such as low in the pollution of the environment.
Preferably, described biochemistry pool adopts A/A/O biochemistry pool.
Detesting (holding concurrently) oxygen section (A section) adopts and to detest (holding concurrently) oxygen to process microorganism be main, the biophase of suspension type and the mixing of attached type microorganism.Hang combined stuffing, divide into aeration tube mix and blend, sewage is fully contacted with active sludge; Its dissolved oxygen rate is controlled at (0.3～0.5mg/L).By backflow, carry out denitrification denitrogenation, improve NH
4-N processing efficiency.It is main that aerobic section (O section) adopts aerobic treatment microorganism, the biophase that suspension type and attached type microorganism mix.Hang combined stuffing, can make bubble and cut, then coordinate micro-hole aerator to aeration process, coefficient of oxygen utilization brings up to 8～9% from 2% efficiency of common perforated pipe, has improved dynamic efficiency, increases biochemical treatment efficiency.Experience is detested (holding concurrently) oxygen, aerobic processes, and microorganism often breathes in inside/outside source alternately, produces sludge quantity few.When realizing organic matter degradation, realize the object of biological denitrificaion.
Preferably, described grille well comprises twice grid, and the grid width of described twice grid is 500mm, and wherein the grid gap of one grid is 10mm, and the grid gap of another road grid is 5mm, and the setting angle of described twice grid is 70 °.Can effectively tackle greater particle size solid impurity.
The utility model oxidation pond adopts adaptive plant vector to carry out the advanced treatment of nitrogen, phosphorus, avoided the defect that conventional oxidation pond operation interfering factors is many, be difficult to keep higher stability, improved processing efficiency, higher stability and controllability have been guaranteed, can carry out parameter control according to the variation of the variation of water quality and ambient conditions, be convenient to management and control.
The utility model integrates discharged wastewater met the national standard, recycling sludge is processed and biogas utilization, reaches the effective and reasonable object of utilizing resource; Waste water after processing meets the requirement of emission standard, has less investment, energy consumption is low, running cost is low, operational administrative is simple, and running maintenance is convenient, recycle the features such as biogas.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of the utility model embodiment 1;
Fig. 2 is the functional block diagram of the utility model embodiment 2.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but protection domain of the present utility model is not limited to this.
Embodiment 1
With reference to Fig. 1, a kind of waste water treatment system for nursery, described system comprises equipment for separating liquid from solid, adjusting preliminary sedimentation tank, anaerobic reation pool, the first reaction settling basin, biochemistry pool, the second reaction settling basin and the oxidation pond arranging in turn; Described equipment for separating liquid from solid comprises solid-liquid separator and grille well, and described grille well is arranged on solid-liquid separator and regulates between preliminary sedimentation tank.Regulate the front end of preliminary sedimentation tank to be provided with grille well, for tackling large suspended solid as foreign material such as pig manures.Described anaerobic reation pool is connected with air water separator, and described air water separator is connected with gas-holder by desulfurizer, and described air water separator, desulfurizer and gas-holder form methane utilizing system; Described adjusting preliminary sedimentation tank, anaerobic reation pool, the second reaction settling basin are connected with concentration basin respectively, and described concentration basin is connected with pressure filter; Between described the first reaction settling basin and adjusting preliminary sedimentation tank, form first recycle system, between the second reaction settling basin and biochemistry pool, form second recycle system, between the second reaction settling basin and adjusting preliminary sedimentation tank, form third circulation system.
By solid-liquid separation, can make the pollutant load amount of liquid portion greatly reduce, can prevent that larger solids from entering subsequent disposal link, prevent the obstruction damage of equipment etc., before Anaerobic Digestion, carry out solid-liquid separation and also can increase anaerobic digestion maintainability, reduce the size of anaerobic reactor and the required residence time, reduce facility investment and improve the removal efficiency of COD.
By methane utilizing system, the waste water of feces of livestock and poultry and plant's generation is utilized, process biogas fermentation technology (Anaerobic Digestion) both can realize innoxious, can also reclaim biogas and organic fertilizer simultaneously, reached effective utilization of resource.
Described anaerobic reation pool adopts up flow anaerobic sludge blanket reactor (UASB), and the useful volume of UASB reactor is 800m
3, available depth is 10m, design hydraulic detention time is 4 days.Described biochemistry pool adopts A/A/O biochemistry pool, and for further degradation of organic substances and denitrogenation, its useful volume is 1600m
3, available depth is 4.2m, design hydraulic detention time is 128h.Described grille well comprises twice grid, and the grid width of described twice grid is 500mm, and wherein the grid gap of one grid is 10mm, and the grid gap of another road grid is 5mm, and the setting angle of described twice grid is 70 °.
Adjusting preliminary precipitation of the present utility model pond is for carrying out gravity settling to the large suspended particle of waste water, reduce the impact load of the impact load of subsequent disposal unit, the even water quality and quantity of equalizing tank, its size is 20.0m * 10.0m * 3.5m, available depth is 2.7m, and design hydraulic detention time is 36h.The first reaction settling basin, for the thinner suspended particle of waste water is carried out to coagulant precipitation, further lowers SS concentration, and its size is 10m * 5.0m * 5.0m, and available depth is 2.7m, and design hydraulic detention time is 6h.The second reaction settling basin adopts inclined-plate clarifying basin, and its size is 10m * 5.0m * 5.0m, and available depth is 4.6m, and design hydraulic detention time is 6h.In oxidation pond, the adaptive plant vector of configuration, to improve wastewater purifying efficiency, particularly improves the decontamination effect improving to phosphorus, nitrogen, and the useful volume of oxidation pond is 1800 m
3, design hydraulic detention time is 96h.
During use, pig manure urine is first by after solid-liquid separator separation, through being arranged on the thickness twice grid regulating before preliminary sedimentation tank, from flowing to waste water, regulate preliminary sedimentation tank, when realizing even water quality and quantity in regulating preliminary sedimentation tank, also precipitate larger solid particulate, waste water after equalizing tank is processed rises in UASB reactor by submersible sewage pump, under the effect of anaerobic sludge, the most organic pollutant removal that is decomposed in water; The biogas producing enters desulfurizer desulfurization after air water separator is processed, and the biogas after desulfurization enters gas-holder and stores, and the biogas after above-mentioned steps is processed can utilize by torch burning etc.The water outlet of UASB reactor supernatant liquor enters the first reaction settling basin, then dosing coagulating sedimentation in the first reaction settling basin, precipitation water outlet enters A/A/O biochemistry pool, A/A/O biochemistry pool adopts combined stuffing and the micro-pore aeration system of bigger serface, the water outlet of processing through A/A/O biochemistry pool enters oxidation pond after the second reaction settling basin, configuration screening plant in the pool, by the Absorption And Metabolism effect of animal and plant self, further the organism in water especially nitrogen, phosphorus are removed, then qualified discharge.
The first reaction settling basin, biochemistry pool, the second reaction settling basin form aerobic treatment system, by first recycle system, second recycle system, third circulation system, the excess sludge that aerobic treatment system produces can drain back to adjusting preliminary sedimentation tank, enter again anaerobic reactor, can realize the object of reducing sludge volume, can greatly reduce sludge yield accordingly, alleviate routine work amount, save running cost; The process that can also carry out nitration denitrification by the reflux cycle of oxygen-aerobic treatment system of holding concurrently, improves NH
4-N processing efficiency.
The mud that system produces is comprised of three parts: inorganic mud, the anaerobic sludge of UASB generation and the excess sludge that aerobic treatment system produces that waste water regulates preliminary sedimentation tank place precipitation to produce.Mud regularly enters sludge thickener, then by sieve bar, is pumped into pressure filter and completes sludge dewatering treatment process.Dehydrated sludge is carried out recycling treatment, and by mud cake outward transport, filtrate flows back to pump well through trench and again processes.
Embodiment 2
With reference to Fig. 2, a kind of waste water treatment system for nursery, described system comprises equipment for separating liquid from solid, adjusting preliminary sedimentation tank, anaerobic reation pool, the first reaction settling basin, biochemistry pool, the second reaction settling basin and the oxidation pond arranging in turn; Described equipment for separating liquid from solid comprises solid-liquid separator and grille well, and described grille well is arranged on solid-liquid separator and regulates between preliminary sedimentation tank.Regulate the front end of preliminary sedimentation tank to be provided with grille well, for tackling large suspended solid as foreign material such as pig manures.Described anaerobic reation pool is connected with air water separator, and described air water separator is connected with gas-holder by desulfurizer, and described air water separator, desulfurizer and gas-holder form methane utilizing system; Described adjusting preliminary sedimentation tank, anaerobic reation pool, the second reaction settling basin are connected with concentration basin respectively, and described concentration basin is connected with pressure filter; Between described the first reaction settling basin and adjusting preliminary sedimentation tank, form first recycle system, between the second reaction settling basin and biochemistry pool, form second recycle system, between the second reaction settling basin and adjusting preliminary sedimentation tank, form third circulation system.
Between described the first reaction settling basin and biochemistry pool, be provided with intermediate buffering pond, improve the stability for the treatment of system.Described anaerobic reation pool adopts up flow anaerobic sludge blanket reactor (UASB), biochemistry pool adopts A/A/O biochemistry pool, described grille well comprises twice grid, the grid width of described twice grid is 500mm, wherein the grid gap of one grid is 10mm, the grid gap of another road grid is 5mm, and the setting angle of described twice grid is 70 °.
During use, pig manure urine, first by after solid-liquid separator separation, certainly flow to waste water and regulates preliminary sedimentation tank, regulates the front end of preliminary sedimentation tank to be provided with thickness grid twice entering, for tackling the separated halfway larger dirt of waste water pig manure urine (as pig manure etc.).Regulate preliminary sedimentation tank, when realizing even water quality and quantity and the larger solid particulate of precipitation, the waste water after equalizing tank is processed rises to by submersible sewage pump in UASB reactor, under the effect of anaerobic sludge, and the most organic pollutant removal that is decomposed in water.The biogas producing enters desulfurizer desulfurization after air water separator is processed, and the biogas after desulfurization enters gas-holder and stores, and the biogas after above-mentioned steps is processed can utilize by torch burning.The water outlet of UASB reactor supernatant liquor enters the first reaction settling basin, then dosing coagulating sedimentation in the first reaction settling basin, precipitation water outlet is carried out air supporting precipitation through intermediate buffering pond, enter A/A/O biochemistry pool, A/A/O biochemistry pool adopts combined stuffing and the micro-pore aeration system of bigger serface, the water outlet of processing through A/A/O biochemistry pool enters oxidation pond after the second reaction settling basin, configuration screening plant in the pool, by the Absorption And Metabolism effect of animal and plant self, further the organism in water especially nitrogen, phosphorus are removed, then qualified discharge.
The first reaction settling basin, biochemistry pool, the second reaction settling basin form aerobic treatment system, by first recycle system, second recycle system, third circulation system, the excess sludge that aerobic treatment system produces can drain back to adjusting preliminary sedimentation tank, enter again anaerobic reactor, can realize the object of reducing sludge volume, can greatly reduce sludge yield accordingly, alleviate routine work amount, save running cost; The process that can also carry out nitration denitrification by the reflux cycle of oxygen-aerobic treatment system of holding concurrently, improves NH
4-N processing efficiency.
The mud that system produces is comprised of three parts: inorganic mud, the anaerobic sludge of UASB generation and the excess sludge that aerobic treatment system (the second reaction settling basin) produces that waste water regulates preliminary sedimentation tank place precipitation to produce.Mud regularly enters sludge thickener, then by spiral pump, sends into pressure filter and completes sludge dewatering treatment process.Dehydrated sludge is carried out recycling treatment, and by mud cake outward transport, filtrate flows back to pump well through trench and again processes.
Claims (6)
1. a waste water treatment system for nursery, is characterized in that: described system comprises equipment for separating liquid from solid, adjusting preliminary sedimentation tank, anaerobic reation pool, the first reaction settling basin, biochemistry pool, the second reaction settling basin and the oxidation pond arranging in turn; Described anaerobic reation pool is connected with air water separator, and described air water separator is connected with gas-holder by desulfurizer, and described air water separator, desulfurizer and gas-holder form methane utilizing system; Described adjusting preliminary sedimentation tank, anaerobic reation pool, the second reaction settling basin are connected with concentration basin respectively, and described concentration basin is connected with pressure filter; Between described the first reaction settling basin and adjusting preliminary sedimentation tank, form first recycle system, between the second reaction settling basin and biochemistry pool, form second recycle system, between the second reaction settling basin and adjusting preliminary sedimentation tank, form third circulation system.
2. waste water treatment system for nursery according to claim 1, is characterized in that: described equipment for separating liquid from solid comprises solid-liquid separator and grille well, and described grille well is arranged on solid-liquid separator and regulates between preliminary sedimentation tank.
3. waste water treatment system for nursery according to claim 1, is characterized in that: between described the first reaction settling basin and biochemistry pool, be provided with intermediate buffering pond.
4. waste water treatment system for nursery according to claim 1, is characterized in that: described anaerobic reation pool adopts up flow anaerobic sludge blanket reactor.
5. waste water treatment system for nursery according to claim 1, is characterized in that: described biochemistry pool adopts A/A/O biochemistry pool.
6. waste water treatment system for nursery according to claim 2, it is characterized in that: described grille well comprises twice grid, the grid width of described twice grid is 500mm, wherein the grid gap of one grid is 10mm, the grid gap of another road grid is 5mm, and the setting angle of described twice grid is 70 °.
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| CN201420242608.0U CN203878024U (en) | 2014-05-13 | 2014-05-13 | Wastewater treatment system for culture farm |
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| CN201420242608.0U CN203878024U (en) | 2014-05-13 | 2014-05-13 | Wastewater treatment system for culture farm |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310740A (en) * | 2014-10-30 | 2015-01-28 | 朱安民 | Pollution discharge control process in scale-cultivation |
| CN104743747A (en) * | 2015-03-18 | 2015-07-01 | 常州大学 | Hoggery waste treatment device and method |
| CN105036819A (en) * | 2015-07-01 | 2015-11-11 | 成都机缘环保科技有限公司 | Facility for producing earthworm breeding loam by utilizing aquaculture sewage and method |
| CN105174617A (en) * | 2015-09-11 | 2015-12-23 | 武汉市宜能环保科技有限公司 | Wastewater advanced treatment system of large-scale pig farm |
| CN105366890A (en) * | 2015-11-27 | 2016-03-02 | 北京首钢朗泽新能源科技有限公司 | Treatment method for organic wastewater from preparation of ethanol by biological fermentation of tail gas of steel plant |
| CN105948398A (en) * | 2016-06-21 | 2016-09-21 | 福建禹环境科技有限公司 | Comprehensive treatment method for livestock and poultry breeding wastewater |
| CN106045232A (en) * | 2016-08-04 | 2016-10-26 | 迈邦（北京）环保工程有限公司 | Culture sewage treatment method and system |
| CN106186569A (en) * | 2016-08-29 | 2016-12-07 | 武汉东川自来水科技开发有限公司 | A kind of recycling treatment system for reconstituted tobacoo sewage and method |
| CN106892538A (en) * | 2017-03-17 | 2017-06-27 | 天津中冀源环保科技有限公司 | The biochemical materialization combined treatment process of cassava alcohol waste water |
| CN107265802A (en) * | 2017-07-11 | 2017-10-20 | 湖南优卓牧业有限公司 | The treatment for cow manure system and processing method of a kind of dairy cow farm |
| CN107406287A (en) * | 2015-03-05 | 2017-11-28 | 株式会社久保田 | Purification tank |
| CN110117128A (en) * | 2019-04-19 | 2019-08-13 | 河北德龙环境工程股份有限公司 | A kind of integrated conduct method of excrement and urine water |
| CN112062409A (en) * | 2020-09-08 | 2020-12-11 | 江苏众志新禹环境科技有限公司 | Biogas digester utilization type cultivation wastewater treatment method |
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- 2014-05-13 CN CN201420242608.0U patent/CN203878024U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310740A (en) * | 2014-10-30 | 2015-01-28 | 朱安民 | Pollution discharge control process in scale-cultivation |
| CN107406287A (en) * | 2015-03-05 | 2017-11-28 | 株式会社久保田 | Purification tank |
| CN104743747A (en) * | 2015-03-18 | 2015-07-01 | 常州大学 | Hoggery waste treatment device and method |
| CN105036819A (en) * | 2015-07-01 | 2015-11-11 | 成都机缘环保科技有限公司 | Facility for producing earthworm breeding loam by utilizing aquaculture sewage and method |
| CN105174617A (en) * | 2015-09-11 | 2015-12-23 | 武汉市宜能环保科技有限公司 | Wastewater advanced treatment system of large-scale pig farm |
| CN105366890B (en) * | 2015-11-27 | 2017-08-25 | 北京首钢朗泽新能源科技有限公司 | A kind of steel mill's tail gas biofermentation ethanol method for processing organic wastewater |
| CN105366890A (en) * | 2015-11-27 | 2016-03-02 | 北京首钢朗泽新能源科技有限公司 | Treatment method for organic wastewater from preparation of ethanol by biological fermentation of tail gas of steel plant |
| CN105948398A (en) * | 2016-06-21 | 2016-09-21 | 福建禹环境科技有限公司 | Comprehensive treatment method for livestock and poultry breeding wastewater |
| CN106045232A (en) * | 2016-08-04 | 2016-10-26 | 迈邦（北京）环保工程有限公司 | Culture sewage treatment method and system |
| CN106186569A (en) * | 2016-08-29 | 2016-12-07 | 武汉东川自来水科技开发有限公司 | A kind of recycling treatment system for reconstituted tobacoo sewage and method |
| CN106892538A (en) * | 2017-03-17 | 2017-06-27 | 天津中冀源环保科技有限公司 | The biochemical materialization combined treatment process of cassava alcohol waste water |
| CN107265802A (en) * | 2017-07-11 | 2017-10-20 | 湖南优卓牧业有限公司 | The treatment for cow manure system and processing method of a kind of dairy cow farm |
| CN110117128A (en) * | 2019-04-19 | 2019-08-13 | 河北德龙环境工程股份有限公司 | A kind of integrated conduct method of excrement and urine water |
| CN112062409A (en) * | 2020-09-08 | 2020-12-11 | 江苏众志新禹环境科技有限公司 | Biogas digester utilization type cultivation wastewater treatment method |
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Granted publication date: 20141015 Termination date: 20200513 |