CN102276108A - Livestock/poultry biogas slurry purification device and method - Google Patents

Livestock/poultry biogas slurry purification device and method Download PDF

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Publication number
CN102276108A
CN102276108A CN2011101472330A CN201110147233A CN102276108A CN 102276108 A CN102276108 A CN 102276108A CN 2011101472330 A CN2011101472330 A CN 2011101472330A CN 201110147233 A CN201110147233 A CN 201110147233A CN 102276108 A CN102276108 A CN 102276108A
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China
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natural pond
livestock
tank
sedimentation tank
poultry
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CN2011101472330A
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Chinese (zh)
Inventor
支银芳
李登奎
罗德芳
李星
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江苏加德绿色能源有限公司
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Priority to CN2011101472330A priority Critical patent/CN102276108A/en
Publication of CN102276108A publication Critical patent/CN102276108A/en

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Abstract

A livestock/poultry biogas slurry purification device comprises an adjusting tank (1), a contact oxidation tank (2), a flocculation sedimentation tank dosing area (3), a reaction area (4), a precipitation area (5), an iron-carbon microelectrolysis tank (6) and a sterilizing clarifier (7) in sequence, wherein the adjusting tank (1) is communicated with the contact oxidation tank (2) through a water inlet pipe (13) and a control valve (14), the flocculation sedimentation tank precipitation area (5) is communicated with the iron-carbon microelectrolysis tank (6) through another water inlet pipe (13) and control valve (14); a water pump (9) is arranged between the flocculation sedimentation tank precipitation area and the iron-carbon microelectrolysis tank (6); and filler and an aeration device are arranged in the contact oxidation tank, an aeration machine supplies oxygen, and another aeration device is arranged in the iron-carbon microelectrolysis tank. The livestock/poultry biogas slurry purification device is used to purify the livestock/poultry biogas slurry through aerobic biological treatment, remove partial biodegradable organics in the biogas slurry and remove ammonia nitrogen simultaneously; and most of suspended solids and refractory organics are further removed through flocculation precipitation and iron-carbon microelectrolysis; and the purification treatment of the biogas slurry is completed and water is discharged through sterilization and clarification.

Description

A kind of livestock and poultry natural pond liquid refining plant and method
Technical field
The invention belongs to sewage treatment area, relate to a kind of waste disposal plant and method.
Background technology
Feces of livestock and poultry and urine not only can be removed dissolved organic matter in a large number through anaerobic biological treatment, reduce COD, BOD in the waste water, and can kill the infectivity germ, help epidemic prevention, in this process, also can obtain the clean energy of biogas form, become a kind of changing rejected material to useful resource processing mode at present with development prospect.
But the anaerobic digestion of feces of livestock and poultry urine by product-natural pond liquid still contains a considerable amount of hardly degraded organic substances, and its COD is higher, and BOD has caused COD/BOD seriously to lack of proper care because of anaerobic treatment approach exhaustion; In anaerobic digestion process, organonitrogen has been converted to ammonia nitrogen simultaneously, and ammonia-nitrogen content is very high in the liquid of natural pond, has caused C/N than imbalance.Then its degradation effect is not obvious if only adopt biological treatment, does not reach emission standard, and is still very big to the pressure of environment.
Part natural pond liquid can be utilized with fertilizer or fishes and shrimps feed form, but its fertilizer efficiency and chemical fertilizer relatively there is no advantage, and the peasant uses wish lower, has limited its mass-producing and has used.Under the situation of water globe resource growing tension, how effectively to purify natural pond liquid and make it to recycle, have important practical significance.
In recent years, the treatment process of livestock and poultry natural pond liquid is mainly concentrated on activated sludge process and contact oxidation method, and also had part enterprise to adopt oxidation ditch process.Problems such as but treatment effect is all not satisfactory, and treat effluent COD still has more than the 500mg/L, and most the processing all need to add plant's raw wastewater, and the residence time causes reactor volume huge generally at 15 ~ 30 days, and energy consumption is higher, and sludge yield is many.Patent No. CN 101602538A(200910101290.8), utilizes the biological treatment of refining plant associating A/O and fish, have fast, efficient and run multi-industry advantage concurrently.Patent publication No. CN 101823812A utilizes complex micro organism fungicide and fish to handle natural pond liquid.This class treatment process all has certain limitation, and needs the former water of introducing that natural pond liquid is diluted, and is not a kind of treatment process completely, and its water outlet also only can be used for agricultural water, and the whole in addition water treatment cycle is longer, generally needs more than 5 days.
Summary of the invention
The objective of the invention is deficiency, design a kind of quick, efficient, applied widely, livestock and poultry natural pond liquid processing device and method of adopting the comprehensive treating process means at existing natural pond liquid treatment technology.
The objective of the invention is deficiency at existing natural pond liquid treatment technology, at first handle by aerobe, removing can be by biodegradable partial organic substances in the liquid of natural pond, remove ammonia nitrogen simultaneously, then remove most of suspended solids and hardly degraded organic substance, last a small amount of organism not removed in the liquid of the little electrolytic oxidation of iron charcoal natural pond again by flocculation in the flocculation sediment mode.The entire treatment process has been united biological and physics and chemistry treatment process, has taken into full account the composition difference and the degraded difference of various livestock and poultry natural pond liquid, not only can handle livestock and poultry natural pond liquid quickly and efficiently, and goes for the liquid processing of various types of livestock and poultry natural pond.
Technical scheme of the present invention is: livestock and poultry of the present invention natural pond liquid refining plant is followed successively by equalizing tank, contact-oxidation pool, flocculation sedimentation tank, flocculation sedimentation tank sequentially and is divided into dosing district (3) reaction zone (4) and settling region (5), iron charcoal micro cell and sterilization settling pond.Be communicated with water inlet pipe between wherein equalizing tank and contact-oxidation pool, flocculation sedimentation tank and iron charcoal micro cell, control valve is arranged therebetween, iron charcoal micro cell is equipped with water pump in addition, filler and aerating apparatus are housed in the contact-oxidation pool,, in the iron charcoal micro cell identical aerating apparatus are also arranged by the aerator oxygen supply.
Respectively there is sewage draining valve described equalizing tank, flocculation sedimentation tank and sterilization settling pond below.The treatment process of livestock and poultry natural pond liquid refining plant, adopt following steps: open the equalizing tank water inlet control valve, natural pond liquid is introduced equalizing tank (1), introduce livestock and poultry cultivation stoste simultaneously without anaerobic treatment, both volume ratios are natural pond liquid: stoste=2:1 ~ 4, after mixing.Open outlet water control valve, natural pond liquid enters in the contact-oxidation pool (2) through the water inlet pipe gravity flow, part COD is by aerobic degradation in the liquid of natural pond after aerobic treatment after a while, and the aerobic ammonia nitrogen degradation bacterium that adds simultaneously and other bacterium combined effects can be removed most ammonia-nitrogen and total phosphorus.This process is continuous operation after starting; Gravity flow enters flocculation sedimentation tank (5) again, and this process is continuous operation after starting.Flocculation sedimentation tank carries out one time flocculation sediment every day.The supernatant liquor of flocculation sedimentation tank settling region (5) enters iron charcoal micro cell (6) through water pump, enters sterilization settling pond (7) through the liquid after the little electrolysis treatment of iron charcoal, qualified discharge after further handling.
Between described equalizing tank, contact-oxidation pool and the flocculation sedimentation tank liquid level drop is arranged, rely on action of gravity to carry out natural pond liquid transmission, wherein regulate pond liquid and enter contact-oxidation pool by water inlet pipe, liquid gravity flow in natural pond enters flocculation sedimentation tank in the contact-oxidation pool; Then rely on water pump to carry out natural pond liquid transmission between flocculation sedimentation tank and the iron charcoal micro cell.
In biological contact oxidation pond, install filler and aerating apparatus additional, and add aerobic microbiological intensive treatment process; Flocculation sedimentation tank dosing district finishes flocculant concentration, and reaction zone carries out flocculation reaction, and the precipitation function is exercised in the settling region; In the iron charcoal micro cell aerator is housed, satisfies the demand of liquid iron charcoal little electrolysis treatment process in natural pond oxygen; The sterilization settling pond is except that its precipitating action, and other is equipped with ultraviolet lamp and carries out disinfection.Each pond is regularly opened wash water valve and is carried out mud discharging, and a processing cycle is 24 hours.Contact-oxidation pool (2) treatment process of taking is a catalytic oxidation, can add microorganism, and filler is a combined stuffing, and adding microorganism is aerobic denitrifying bacteria and ammonia nitrogen degradation bacterium, and the treatment time is 2 ~ 4 hours.The flocculation agent that flocculation sedimentation tank is taked is in PAFS, polymerize aluminum chloride, polyaluminium sulfate, bodied ferric sulfate and the polyacrylamide two kinds or three kinds, and dosage is 1.5 ~ 4.5kg/ ton natural pond liquid, and flocculation pH is 5.5 ~ 8.5.The iron charcoal volume ratio that iron charcoal micro cell is taked is 3:5 ~ 5:3.5, and natural pond liquid pH is 5.0 ~ 8.5, and the reaction times is 60 ~ 150min.
Iron filings are filled two kinds of fillers with mixing of inertia carbon granule (as graphite, activated carbon, coke etc.) and are all had the required fundamental element of micro-electrolysis reaction: Fe and C.The Fe of low potential and the C of noble potential produce potential difference in waste water, waste water with certain electroconductibility serves as ionogen, forms countless galvanic cells, produces electrode reaction and caused thus a series of effects, change the character of pollutent in the waste water, thereby reach the purpose of wastewater treatment.
Biological contact oxidation pond should be expired the uniform plane aeration below filler.
The natural pond liquid of process aerobic treatment flows automatically and enters flocculation sedimentation tank, and flocculation sedimentation tank carries out flocculation sediment one time every day, and hard-degraded substance and suspended solids become precipitation through flocculation and be removed from the liquid of natural pond, and natural pond liquid COD is further reduced.
Supernatant liquor enters iron charcoal micro cell through water pump in the flocculation sedimentation tank settling region, and after the little electrolysis treatment of iron charcoal, difficult degradation COD is removed once more in the liquid of natural pond, and natural pond liquid COD reaches emission standard.
Enter the sterilization settling pond through the liquid after the little electrolysis of iron charcoal, qualified discharge after further handling.
Install filler and aerating apparatus in the contact-oxidation pool additional, and add aerobic microbiological intensive treatment process;
Flocculation sedimentation tank dosing district finishes flocculant concentration, and reaction zone carries out flocculation reaction, and the precipitation function is exercised in the settling region; In the iron charcoal micro cell aerator is housed, satisfies the demand of liquid iron charcoal little electrolysis treatment process in natural pond oxygen;
The sterilization settling pond is except that its precipitating action, and other is equipped with ultraviolet lamp and carries out disinfection.Each pond is regularly opened wash water valve and is carried out mud discharging, and a processing cycle is 24 ± 6 hours.
Treatment process that described contact-oxidation pool is taked is a catalytic oxidation, and filler is a combined stuffing, and adding microorganism is aerobic denitrifying bacteria and ammonia nitrogen degradation bacterium, and the treatment time is 2 ~ 4 hours.
The flocculation agent that described flocculation sedimentation tank is taked is in PAFS, polymerize aluminum chloride, polyaluminium sulfate, bodied ferric sulfate and the polyacrylamide two kinds or three kinds, and dosage is 1.5 ~ 4.5kg/ ton natural pond liquid, and flocculation pH is 5.5 ~ 8.5.
Described sterilization settling pond is equipped with ultraviolet lamp and waste water is carried out disinfection qualified discharge.
Various device of the present invention as no particular requirement, is all built according to industry standard.
The invention has the beneficial effects as follows: by uniting aerobe processing and flocculation, the little electrolytic and physical treatment process of iron charcoal, can make natural pond liquid COD(chemical oxygen demand (COD) at short notice), the TN(total nitrogen), the TP(total phosphorus) the be up to state standards requirement of " integrated wastewater discharge standard (GB 8978-1996) " of concentration, have advantage quick, effective and applied widely.
Description of drawings
Accompanying drawing is apparatus structure of the present invention and treatment scheme synoptic diagram.
Embodiment
The present invention is described in detail below in conjunction with embodiment and with reference to accompanying drawing:
Embodiment 1: natural pond liquid supernatant part continuously flows under action of gravity in the equalizing tank 1 in the methane-generating pit, pumps into the livestock and poultry cultivation stoste of equal volume without anaerobic treatment simultaneously, and both thorough mixing are even in equalizing tank; Mixed solution carries out aerobic treatment by water inlet pipe from flowing into contact-oxidation pool 2, many annular distances of built-up type filler is housed in the contact-oxidation pool and throws in aerobic ammonia nitrogen degradation bacterium, dosage is a 5kg/ ton natural pond liquid, start aerating apparatus and carry out aeration, utilize ammonia nitrogen degradation bacterium to remove natural pond liquid most ammonia-nitrogen, remove portion C OD with other microorganism synergies simultaneously, this tank waterpower residence time is 2.5 hours, natural pond liquid is after aerobe is handled, partial organic substances is adsorbed or degrades, natural pond liquid gravity flow after this handles enters in the flocculation sedimentation tank, in case said process starts then enters the continuous operation state.After aerobic ammonia nitrogen degradation bacterium adds, tame through cultivating, but in field planting and the filler, need not frequently to add.
The natural pond liquid that is temporary in the flocculation sedimentation tank flocculated once in per 24 hours, it is PAFS that dosing district 3 adds flocculation agent, dosage is a 2.5kg/ ton natural pond liquid, natural pond liquid pH is 7.8, press 2kg/ ton natural pond liquid again and add polyacrylamide, enter reaction zone 4 and carry out flocculation reaction, then enter settling region 5 and left standstill 60 minutes, a large amount of organism separates from the liquid of natural pond behind this flocculation sediment with suspended solids.
Supernatant liquor is pumped in the iron charcoal micro cell 6 by water pump in the flocculation sediment settling region, iron carbon ratio is 1:1, pH is 6.0, opened the aerator aeration 60 minutes, organism is oxidized in the liquid of natural pond removes, and natural pond liquid obtains the purification in a nearly step, and the natural pond liquid after the processing enters clarification disinfecting pond precipitation 7, the supernatant of post precipitation discharges behind uv sterilisation, and this draining meets National Standard integrated wastewater discharge standard (GB 8978-1996) " regulation.After operation for some time, have part mud in each pond and retain, open wash water valve and discharge mud.
Embodiment 2: other steps and concrete measure and embodiment 1 system, and just adding flocculation agent in the flocculation sedimentation tank is bodied ferric sulfate, and dosage is a 3.2kg/ ton natural pond liquid, and natural pond liquid pH is 7.0; Iron carbon ratio is 2:1 in the iron charcoal micro cell, and pH is 5.5.
Embodiment 3: other steps and concrete measure and embodiment 1 system, and just adding flocculation agent in the flocculation sedimentation tank is polyaluminium sulfate, and dosage is a 4.0kg/ ton natural pond liquid, and natural pond liquid pH is 7.5; Iron carbon ratio is 1:3 in the iron charcoal micro cell, and pH is 6.5.The present invention generally at room temperature carries out, and can suitably heat when water temperature is lower than 10 ℃, and prolong the biological treatment time.
The present invention at first handles by aerobe, having removed can be by biodegradable partial organic substances in the liquid of natural pond, remove ammonia nitrogen simultaneously, then remove most of suspended solids and hardly degraded organic substance, last a small amount of organism not removed in the liquid of the little electrolytic oxidation of iron charcoal natural pond again by flocculation in the flocculation sediment mode.The entire treatment process has been united biological and physics and chemistry treatment process, has taken into full account the composition difference and the degraded difference of various livestock and poultry natural pond liquid, not only can handle livestock and poultry natural pond liquid quickly and efficiently, and goes for the liquid processing of various types of livestock and poultry natural pond.

Claims (9)

1. livestock and poultry natural pond liquid refining plant, the described device of its feature are followed successively by equalizing tank (1), contact-oxidation pool (2), flocculation sedimentation tank dosing district (3) reaction zone (4) and settling region (5), iron charcoal micro cell (6) and sterilization settling pond (7) sequentially; Wherein be communicated with water inlet pipe (13) between equalizing tank (1) and contact-oxidation pool (2), flocculation sedimentation tank settling region (5) and the iron charcoal micro cell (6) and control valve (14) arranged, between flocculation sedimentation tank settling region (5) and the iron charcoal micro cell (6) water pump (9) is housed in addition, filler (11) and aerating apparatus (12) are housed in the contact-oxidation pool (2), by aerator (8) oxygen supply, in the iron charcoal micro cell (6) aerating apparatus also is installed.
2. livestock and poultry according to claim 1 natural pond liquid refining plant is characterized in that respectively there is wash water valve (10) described equalizing tank (1), flocculation sedimentation tank settling region (5) and sterilization settling pond (7) below.
3. the treatment process of livestock and poultry natural pond liquid refining plant is characterized in that adopting following steps:
Open the equalizing tank water inlet control valve, natural pond liquid is introduced equalizing tank (1), introduce livestock and poultry cultivation stoste simultaneously without anaerobic treatment, both volume ratios are natural pond liquid: stoste=2:1 ~ 4, after mixing, open outlet water control valve, natural pond liquid enters in the contact-oxidation pool (2) through the water inlet pipe gravity flow, gravity flow enters flocculation sedimentation tank (5) again after aerobic treatment after a while, and this process is continuous operation after starting;
Flocculation sedimentation tank carries out flocculation sediment one time every day, and the supernatant liquor of flocculation sedimentation tank settling region (5) enters iron charcoal micro cell (6) through water pump, enters sterilization settling pond (7) through the liquid after the little electrolysis treatment of iron charcoal, qualified discharge after further handling;
In contact-oxidation pool, install filler and aerating apparatus additional, and add aerobic microbiological intensive treatment process; Flocculation sedimentation tank dosing district finishes flocculant concentration, and reaction zone carries out flocculation reaction, and the precipitation function is exercised in the settling region; In the iron charcoal micro cell aerator is housed, satisfies the demand of liquid iron charcoal little electrolysis treatment process in natural pond oxygen; The sterilization settling pond is except that its precipitating action, and other is equipped with ultraviolet lamp and carries out disinfection; Each pond is regularly opened wash water valve and is carried out mud discharging.
4. livestock and poultry according to claim 3 natural pond liquid purifying method, it is characterized in that between equalizing tank (1), contact-oxidation pool (2) and the flocculation sedimentation tank liquid level drop being arranged, rely on action of gravity to carry out natural pond liquid transmission, wherein equalizing tank (1) natural pond liquid enters contact-oxidation pool (2) by water inlet pipe (13), and liquid gravity flow in natural pond enters flocculation sedimentation tank in the contact-oxidation pool (2); Then be to rely on water pump (9) to carry out natural pond liquid transmission between flocculation sedimentation tank settling region (5) and the iron charcoal micro cell (6).
5. according to claim 3,4 described livestock and poultry natural pond liquid purifying methods, it is characterized in that contact-oxidation pool (2) treatment process of taking is a catalytic oxidation, filler is a combined stuffing, catalytic oxidation adds microorganism, adding microorganism is aerobic denitrifying bacteria and ammonia nitrogen degradation bacterium, and the treatment time is 2 ~ 4 hours.
6. according to claim 3,4 described livestock and poultry natural pond liquid purifying methods, it is characterized in that flocculation agent that flocculation sedimentation tank is taked is in PAFS, polymerize aluminum chloride, polyaluminium sulfate, bodied ferric sulfate and the polyacrylamide two kinds or three kinds, dosage is 1.5 ~ 4.5kg/ ton natural pond liquid, and flocculation pH is 5.5 ~ 8.5.
7. according to claim 3,4 described livestock and poultry natural pond liquid purifying methods, it is characterized in that the iron carbon ratio that iron charcoal micro cell is taked is that 3:1 ~ 1:3.5(m/m), natural pond liquid pH is 5.0 ~ 8.5, the reaction times is 60 ~ 150min.
8. according to claim 3,4 described livestock and poultry natural pond liquid purifying methods, it is characterized in that the settling pond that it is characterized in that sterilizing is equipped with ultraviolet lamp and waste water is carried out disinfection qualified discharge according to the described livestock and poultry of claim 4 natural pond liquid purifying method.
9. according to claim 3,4 described livestock and poultry natural pond liquid purifying methods, it is characterized in that in biological contact oxidation pond, installing filler and aerating apparatus additional, and add aerobic microbiological intensive treatment process; Flocculation sedimentation tank dosing district finishes flocculant concentration, and reaction zone carries out flocculation reaction, and the precipitation function is exercised in the settling region; In the iron charcoal micro cell aerator is housed, satisfies the demand of liquid iron charcoal little electrolysis treatment process in natural pond oxygen; The sterilization settling pond is except that its precipitating action, and other is equipped with ultraviolet lamp and carries out disinfection; Each pond is regularly opened wash water valve and is carried out mud discharging, and the processing cycle is 24 ± 6 hours.
CN2011101472330A 2011-06-02 2011-06-02 Livestock/poultry biogas slurry purification device and method CN102276108A (en)

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Cited By (12)

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Publication number Priority date Publication date Assignee Title
CN102557803A (en) * 2012-02-24 2012-07-11 河北润泽致民农业科技有限公司 Method for producing high-efficiency organic liquid fertilizer by utilizing methane liquid and equipment used in method
CN103304101A (en) * 2013-06-27 2013-09-18 波鹰(厦门)科技有限公司 Resource utilization and regeneration circulation utilization device for livestock and poultry breeding wastewater
CN103449663A (en) * 2013-08-08 2013-12-18 浙江爱迪曼水科技有限公司 Stepped-wall-type electrical and biochemical degradation system for treating livestock and poultry breeding sewage
CN103523972A (en) * 2013-10-25 2014-01-22 西南大学 Method for removing nitrogen and phosphorus from biogas slurry
CN104926037A (en) * 2015-06-16 2015-09-23 湖州练市辉煌鞋业有限公司 Integrated waste water innocent treatment device
CN105439700A (en) * 2015-11-30 2016-03-30 安陆市安源生态农业开发有限公司 Preparation method of biogas slurry containing biological pesticide
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
CN107176700A (en) * 2017-07-25 2017-09-19 哈尔滨工业大学 A kind of utilization aerobic denitrifying bacteria tames the method that packed column reactor handles sanitary sewage in advance
CN107311409A (en) * 2017-08-28 2017-11-03 林慧媛 A kind of ecological pollution treatment of plant and the method for comprehensive utilization of waste materials
CN105692800B (en) * 2016-03-22 2018-11-06 浙江清华长三角研究院 A kind of wastewater treatment equipment and method
CN109052855A (en) * 2018-09-07 2018-12-21 张艳平 A kind of new-type multilayer sterilization aerating type sewage-treatment plant
CN109354344A (en) * 2018-12-19 2019-02-19 上海浦东路桥建设股份有限公司 A kind of large-sized biogas engineering biogas slurry treatment reuse method

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102557803A (en) * 2012-02-24 2012-07-11 河北润泽致民农业科技有限公司 Method for producing high-efficiency organic liquid fertilizer by utilizing methane liquid and equipment used in method
CN102557803B (en) * 2012-02-24 2013-12-04 河北润泽致民农业科技有限公司 Method for producing high-efficiency organic liquid fertilizer by utilizing methane liquid and equipment used in method
CN103304101A (en) * 2013-06-27 2013-09-18 波鹰(厦门)科技有限公司 Resource utilization and regeneration circulation utilization device for livestock and poultry breeding wastewater
CN103304101B (en) * 2013-06-27 2015-05-27 波鹰(厦门)科技有限公司 Resource utilization and regeneration circulation utilization device for livestock and poultry breeding wastewater
CN103449663A (en) * 2013-08-08 2013-12-18 浙江爱迪曼水科技有限公司 Stepped-wall-type electrical and biochemical degradation system for treating livestock and poultry breeding sewage
CN103449663B (en) * 2013-08-08 2015-03-11 浙江爱迪曼水科技有限公司 Stepped-wall-type electrical and biochemical degradation system for treating livestock and poultry breeding sewage
CN103523972A (en) * 2013-10-25 2014-01-22 西南大学 Method for removing nitrogen and phosphorus from biogas slurry
CN104926037A (en) * 2015-06-16 2015-09-23 湖州练市辉煌鞋业有限公司 Integrated waste water innocent treatment device
CN105439700A (en) * 2015-11-30 2016-03-30 安陆市安源生态农业开发有限公司 Preparation method of biogas slurry containing biological pesticide
CN105692800B (en) * 2016-03-22 2018-11-06 浙江清华长三角研究院 A kind of wastewater treatment equipment and method
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
CN105753270B (en) * 2016-05-06 2019-04-26 广州桑尼环保科技有限公司 A kind of water purification system suitable for high ammonia nitrogen livestock breeding wastewater
CN107176700A (en) * 2017-07-25 2017-09-19 哈尔滨工业大学 A kind of utilization aerobic denitrifying bacteria tames the method that packed column reactor handles sanitary sewage in advance
CN107176700B (en) * 2017-07-25 2021-02-05 哈尔滨工业大学 Method for treating domestic sewage by using aerobic denitrifying bacteria pre-domesticated filler reactor
CN107311409A (en) * 2017-08-28 2017-11-03 林慧媛 A kind of ecological pollution treatment of plant and the method for comprehensive utilization of waste materials
CN109052855A (en) * 2018-09-07 2018-12-21 张艳平 A kind of new-type multilayer sterilization aerating type sewage-treatment plant
CN109354344A (en) * 2018-12-19 2019-02-19 上海浦东路桥建设股份有限公司 A kind of large-sized biogas engineering biogas slurry treatment reuse method

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