CN103910463A - Novel process for BC urban sewage treatment - Google Patents

Novel process for BC urban sewage treatment Download PDF

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Publication number
CN103910463A
CN103910463A CN201310586341.7A CN201310586341A CN103910463A CN 103910463 A CN103910463 A CN 103910463A CN 201310586341 A CN201310586341 A CN 201310586341A CN 103910463 A CN103910463 A CN 103910463A
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sewage
aeration tank
water outlet
pond
water
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CN103910463B (en
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柴建中
陈洪福
赵明
杨植
谢丁燕
冯大伟
梅华
王伟伟
刘文武
刘刚
曹美娜
胡生虎
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Qinghai Jieshen Environmental Technology Co.,Ltd.
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QINGHAI JIESHEN ENVIRONMENT ENERGY INDUSTRY CO LTD
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Abstract

The invention discloses a novel process for BC urban sewage treatment, relates to a sewage treatment process, and particularly relates to the novel process for the BC urban sewage treatment. According to the method, the sewage is discharged after being processed by a municipal pipe, a coarse screen well, a sewage pump well, a fine screen well, a grit chamber, JS-BC equipment, an aeration tank, a secondary sedimentation tank, a disinfection system and a measuring tank. The method has efficient nitrogen and phosphorus removal capacities and wonderingly BOD removal effect, is in no need of an additional deodorization system, can save energy and floor space, can greatly reduce residual sewage, and is good in effluent water quality. Municipal sewage treated by the method can reach an A-level standard of a discharge standard of pollutants for a municipal wastewater treatment plant.

Description

A kind of BC new urban sewage treatment process
one, technical field
The present invention relates to a kind of sewage treatment process, particularly a kind of BC new urban sewage treatment process.
two, technical background
City domestic sewage is mainly from family, business and urban public utilities etc., organism is the principal pollutant of sanitary sewage, for example: starch, protein, carbohydrate and plant wet goods, chemical oxygen demand (COD), biological oxygen demand, total nitrogen and the total phosphorus content of city domestic sewage is all relatively high.When nitrogen content and the higher water quality of phosphorus content enter nature, easily cause the eutrophication of water body, cause the breeding of algae raised growth, when serious, can cause red tide and wawter bloom, so that water quality deterioration, contaminate environment.The principal pollutant of city domestic sewage are organism.For sanitary sewage, mainly adopt at present biological process both at home and abroad.Biological process comprises activated sludge process, the large class of biomembrance process two, and again take activated sludge process as main, activated sludge process has a variety of patterns, i.e. conventional activated sludge process, adsorption biodegradation, SBR and modification technique thereof, oxidation ditch process, A/O technique, A 2o technique etc.
Traditional activated sludge process technique: use technique the earliest, it is very high that it removes organic efficiency, the mud that produces in treating processes adopts anaerobic digestion mode to carry out stabilizing treatment, offset except the pollution of sewage and mud very effective, and energy consumption and working cost all lower.But it is not high to the removal efficiency of nitrogen phosphorus.
AB method technique: adopt twice biochemical treatment of absorption regeneration and traditional activated sludge process, technique unit forms more complicated, and mud is unstable, and construction investment and processing cost are high.This method is the treatment process of the special occasions that designs for high density municipal effluent.
Oxidation ditch process: oxidation ditch has another name called oxidation canal, the planeform of ditch body ringwise, rectangle, L shaped, circular or other shapes, there is unique hydraulics characteristic and performance characteristics.Compare with traditional activated sludge process, oxidation ditch process obviously can be saved preliminary sedimentation tank and sludge digestion tank, and flow process is simplified, and effluent quality is than good in the past, operates enterprise also more convenient, and working cost is also relatively saved.The continuous ring type reaction tank of oxidation ditch utilization is made biological reaction tank, oxidation ditch provides very large extension rate and has improved surge capability, be generally several times and even the decades of times of sewage flooding velocity, the residence time of water in ditch is longer, and the organism that is difficult for degraded is also had to good processing power.China also in succession adopts all kinds of municipal effluents of this art breading from the eighties in 20th century, has obtained good effect.And development and evolution becomes various ways in practice, as T-shaped oxidation ditch and DE type oxidation ditch, Orbal oxidation ditch.T-shaped three channel type oxidation channel collection anoxics, aerobic and be deposited in one, hocket reaction and precipitation, flow process is succinct, has biological denitrificaion function.Carrousel oxidation ditch has the characteristic of mixing completely and plug-flow concurrently, and does not need mixed-liquor return system, but the depth of water is unsuitable excessive, and power efficiency of oxygen supply is low, does not possess denitrogenation dephosphorizing function.
A 2/ O technique: at present apply a kind of more method in biological dephosphorize denitrification technique, belong to simultaneous phosphorus and nitrogen removal technique, utilize anaerobism, anoxic, aerobicly realize organic degradation process, first raw waste water enters anaerobic zone, is converted into small molecules tunning.Waste water enters oxygen-starved area subsequently, reaches the object of while carbon elimination and denitrogenation.Release energy and can supply growth and breeding own, absorb the dissolved phosphorus in surrounding environment, organism is behind anaerobic zone, oxygen-starved area, and concentration is quite low.A 2/ O technique total hrt is higher than other similar technique, and anaerobism, anoxic and aerobic San Ge district strictly separate, and are conducive to different microorganisms flora and breed growth, therefore good denitrification dephosphorization effect.Can suppress thread fungus breeding, overcome sludge bulking, all can obtain good treatment effect to higher concentration and low concentration.SBR technique: it is that sewage in continuous flow process is introduced into reaction tank that traditional SBR method is disposed of sewage, and forms anaerobism, anoxic when water inlet, then enters settling tank mud-water separation, and aeration aerating, completes denitrogenation dephosphorizing process, and precipitates in same container.This method does not need returned sluge, without special anaerobic zone, oxygen-starved area, aerobic zone, stir at times, aeration, precipitation, form anaerobism, anoxic, aerobic processes, sedimentation function is good, and organic matter removal efficiency is high, improves the processing efficiency of used water difficult to degradate, suppress thread fungus and expand, do not need second pond and sludge reflux, technique simple.Be applicable to medium and small sewage work.Along with updating of SBR method, SBR method develops into multiple modified form: ICEAS method, CAST method, Unitank method and MSBR method.This several method and traditional SBR method difference are by many ponds are set, running in turn, batch process.Though this several method has its advantage, every pond all needs to install aerator, and head loss is large, and plant factor is low, and investment is large, and level of automation is quite high.
Biological contact oxidation process technique: this process management is simpler, energy-conservation, also applied widely in China, this process using contact-oxidation pool, the whole fillers of sewage submergence of oxygenation, pass through aeration, under the effect of bacteria metabolism, in sewage, organism is removed, and it is obvious that sewage is purified removal effect.Advantage is: in pond, aerobic condition is good, can reach higher volumetric loading, does not need to establish sludge reflux system, does not have sludge bulking problem, and operational management is simple, and the variation of water quality and quantity is had to stronger applicable ability.The main drawback of bio-contact oxidation treatment technology is: be subject to the restriction of design variable and processing set-up, the improper filler of operation of living as designed may stop up, and water distribution aeration is difficult for evenly, may occurring dead angle in part in addition.This oxidation style is only applied at present in trade effluent or small-scale sanitary wastewater.
In sum, there is following problem in existing technology: the clearance of nitrogen, phosphorus is not high, and floor space is large, power consumption is high.Nitrogen, phosphorus are removed process complexity, generally need to relate to that microorganism is nitrated, denitrification, release phosphorus and inhale the processes such as phosphorus.Traditional activated sludge process is very low to the clearance of nitrogen and phosphorus, therefore improve at traditional activated sludge process, by extending aeration time, reducing the method raising denitrification abilities such as load operation, but floor space, power consumption and working cost certainly will be increased, due to the characteristic of biological quantitative limitation and polyP bacteria in activated sludge process, phosphor-removing effect is also not obvious; The main drawback of bio-contact oxidation treatment technology is: be subject to the restriction of design variable and processing set-up, the improper filler of operation of living as designed may stop up, in addition water distribution aeration is difficult for evenly, may occur dead angle in part, the method is only applied at present in trade effluent or small-scale sanitary wastewater.
three, summary of the invention
The problem existing for above-mentioned prior art, the present invention intends providing a kind of BC new urban sewage treatment process, the technical scheme of taking is: a kind of BC new urban sewage treatment process, it is made up of following steps, the first step: sanitary sewage enters the pollution substance of coarse rack well removal large volume through city planting ductwork, coarse rack mesh is 25~100mm, second step: the water outlet of coarse rack well flows into sewage lifting pump sump, then is promoted to fine fack well from sewage lifting pump sump through lift pump, and fine fack will be tackled impurity and large particulate matter in water, and fine fack mesh is 1.5~25mm, the 3rd step: the water outlet of fine fack well flows into settling pit, and settling pit gets off the precipitate in water, the 4th step: settling pit water outlet flows into and mixes distribution reservoir, and in mixing distribution reservoir, second pond returned sluge, aeration tank backflow sewage and Yuan Shui mix, and its blending ratio is 1:1:2, the 5th step: mix in the water outlet in distribution reservoir and add nutritive medium, nutritive medium is 1:0.00000004~1:0.00000008 with water inlet volume ratio, nutritive medium is mainly tropical fresh fruit, edible ethanol and pure mountain spring water composition, add nutritive medium sewage to flow in JS-BC device, JS-BC device comprises biological reaction tank, netted rotary flora contact device, attached microbial film on contact, in JS-BC device, pass through gas blower air feed, sewage is by being grown in the absorption of the soil bacteria Bacillus on carrier in JS-BC device, preliminary degraded organism and ammonia nitrogen wherein, the 6th step: the water outlet in JS-BC device flows into aeration tank, gas blower is to aeration tank air feed, make maintenance dissolved oxygen content in aeration tank, sewage acts synergistically by soil bacteria Bacillus in aeration tank and different oxygen animalcule, nitrifier, denitrifying bacteria, polyP bacteria, protozoon, metazoan, remaining organism, ammonia nitrogen and phosphorus in sewage are removed effectively, the pump refluxing in aeration tank is arranged on aeration tank end, is back to mixing distribution reservoir, in aeration tank, add PAC chemical auxiliary dephosphorization, the 7th step: the water outlet in aeration tank flows into second pond, and muddy water separates in second pond, second pond mud is back to and mixes in distribution reservoir through sludge reflux pump, and second pond residual sludge pump is to sludge treating system processing, the 8th step: second pond water outlet is discharged through water outlet scale tank after flowing into sterilisation system.
the present invention hasfollowing beneficial effect:
1, efficient denitrogenation dephosphorizing ability
With traditional nitrated, denitrification denitrogenation principle difference, soil bacteria Bacillus directly draws amine (organonitrogen), ammonia nitrogen and ammonium salt, for Institute of Micro-biology utilizes, thereby carry out denitrogenation, nitrogen element, form with organonitrogen enters in mud, and removes from system by the discharge of excess sludge, changes into nitrogen and enters in air.Soil bacteria Bacillus belongs to gram-positive microorganism, compared with Gram-negative bacteria, gram-positive bacteria cell wall evenly, mainly carrys out connection peptides glycan by peptide bond and forms cell walls than the cell wall thickness of Gram-negative bacteria (mushroom using in general activated sludge process).The cell walls of gram-positive microorganism has comprised a large amount of teichoic acids.That is to say, in the building-up reactions of microorganism, phosphoric acid salt enters with the form of teichoic acid in the cell walls of soil bacteria Bacillus, finally by discharge dephosphorization from system of excess sludge.Soil bacteria Bacillus can be at short notice absorbed, absorb during by ammonia NH state before the nitrogen composition oxidation in sewage, and the part in the middle of the nitrogen that is absorbed, absorbs is utilized the nutrient being used as while breeding.Say from biology, the picked-up of phosphorus is maximum value in the time of dissolved oxygen concentration 0.5mg/l.But, one of best growth condition of soil bacteria (Bacillus) be dissolved oxygen concentration in aerator tank at 0.1~1.2mg/l, the two condition conforms to, therefore, can effectively carry out dephosphorization, by the general clearance of soil bacteria Bacillus dephosphorization more than 80%.
2, do not need extra deodoration system
Soil bacteria (Bacillus) has the ability of transient absorption, decompose odor, when sewage can suppress the generation of foul smell during through JSBC art breading.Therefore, the foul smell problem of puzzlement sewage treatment facility is satisfactorily resolved.Because soil bacteria Bacillus itself has deodorizing capability, in the treating processes of JSBC technique, substantially there is not mud and foul smell, its biochemical process section, sludge treatment section can not need to carry out extra deodorizing processing, can reduce like this investment cost of sewage work to deodoration system.
3, surprised BOD removes effect
Soil bacteria has specific activity sludge bacteria and exceeds the capacity of decomposition of decades of times, therefore, can process without the state of dilution completely, and can make the overall size for the treatment of facility diminish.
4, space is taken up an area in energy-conservation, saving
In JS-BC system, can remove the more than 50% of BOD loading by JS-BC device.In addition, under the condition of the dissolved oxygen concentration in aerator tank in lower concentration (0.1~1.2mg/l), can meet.Therefore, required aeration capacity significantly reduces than common activated sludge process.Also have in overall Sewage treatment systems, do not need the attendant equipments such as odor removal, amid all these factors, can realize save energy.JS-BC device is miniaturization device, can be arranged on tank, can significantly dwindle the capacity of aerator tank simultaneously, does not need deodorizing and relevant device, therefore can significantly save and take up an area space.
5, significantly reduce excess sludge
Can remove 50% of BOD loading by JS-BC device, therefore can make the load of aerator tank reduce and significantly reduce the generating capacity of excess sludge.
6, discharge water quality is good
The municipal wastewater of processing through the inventive method can reach " urban wastewater treatment firm pollutant emission standard " (GB18918-2002 > one-level A standard.
Four, accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention
five, embodiment:
Embodiment 1: a kind of BC new urban sewage treatment process, it is made up of following steps, the first step: sanitary sewage enters the pollution substance of coarse rack well removal large volume through city planting ductwork, coarse rack mesh is 25 mm, second step: the water outlet of coarse rack well flows into sewage lifting pump sump, then is promoted to fine fack well from sewage lifting pump sump through lift pump, and fine fack will be tackled impurity and large particulate matter in water, and fine fack mesh is 1.5mm, the 3rd step: the water outlet of fine fack well flows into settling pit, and settling pit gets off the precipitate in water, the 4th step: settling pit water outlet flows into and mixes distribution reservoir, and in mixing distribution reservoir, second pond returned sluge, aeration tank backflow sewage and Yuan Shui mix, and its blending ratio is 1:1:2, the 5th step: mix in the water outlet in distribution reservoir and add nutritive medium, nutritive medium is 1:0.00000004~1:0.00000008 with water inlet volume ratio, nutritive medium is mainly tropical fresh fruit, edible ethanol and pure mountain spring water composition, add nutritive medium sewage to flow in JS-BC device, JS-BC device comprises biological reaction tank, netted rotary flora contact device, attached microbial film on contact, in JS-BC device, pass through gas blower air feed, sewage is by being grown in the absorption of the soil bacteria Bacillus on carrier in JS-BC device, preliminary degraded organism and ammonia nitrogen wherein, the 6th step: the water outlet in JS-BC device flows into aeration tank, gas blower is to aeration tank air feed, make maintenance dissolved oxygen content in aeration tank, sewage acts synergistically by soil bacteria Bacillus in aeration tank and peculiar microorganism, nitrifier, denitrifying bacteria, polyP bacteria, protozoon, metazoan, remaining organism, ammonia nitrogen and phosphorus in sewage are removed effectively, the pump of aeration tank effluent recycling is arranged on aeration tank end, is back to mixing distribution reservoir, in aeration tank, add PAC chemical auxiliary dephosphorization, the 7th step: the water outlet in aeration tank flows into second pond, and muddy water separates in second pond, second pond mud is back to and mixes in distribution reservoir through sludge reflux pump, and second pond residual sludge pump is to sludge treating system processing, the 8th step: second pond water outlet is discharged through water outlet scale tank after flowing into sterilisation system.
Embodiment 2: a kind of BC new urban sewage treatment process, it is made up of following steps, the first step: sanitary sewage enters the pollution substance of coarse rack well removal large volume through city planting ductwork, coarse rack mesh is 65mm, second step: the water outlet of coarse rack well flows into sewage lifting pump sump, then is promoted to fine fack well from sewage lifting pump sump through lift pump, and fine fack will be tackled impurity and large particulate matter in water, and fine fack mesh is 17mm, the 3rd step: the water outlet of fine fack well flows into settling pit, and settling pit gets off the precipitate in water, the 4th step: settling pit water outlet flows into and mixes distribution reservoir, and in mixing distribution reservoir, second pond returned sluge, aeration tank backflow sewage and Yuan Shui mix, and its blending ratio is 1:1:2, the 5th step: mix in the water outlet in distribution reservoir and add nutritive medium, nutritive medium is 1:0.00004~1:0.00008 with mixing distribution reservoir inner volume ratio, nutritive medium is mainly tropical fresh fruit, edible ethanol and pure mountain spring water composition, add nutritive medium sewage to flow in JS-BC device, JS-BC device comprises biological reaction tank, netted rotary flora contact device, attached microbial film on contact, in JS-BC device, pass through gas blower air feed, sewage is by being grown in the absorption of the soil bacteria Bacillus on carrier in JS-BC device, preliminary degraded organism and ammonia nitrogen wherein, the 6th step: the water outlet in JS-BC device flows into aeration tank, gas blower is to aeration tank air feed, make maintenance dissolved oxygen content in aeration tank, sewage acts synergistically by soil bacteria Bacillus in aeration tank and peculiar microorganism, nitrifier, denitrifying bacteria, polyP bacteria, protozoon, metazoan, remaining organism, ammonia nitrogen and phosphorus in sewage are removed effectively, the pump of aeration tank effluent recycling is arranged on aeration tank end, is back to mixing distribution reservoir, in aeration tank, add PAC chemical auxiliary dephosphorization, the 7th step: the water outlet in aeration tank flows into second pond, and muddy water separates in second pond, second pond mud is back to and mixes in distribution reservoir through sludge reflux pump, and second pond residual sludge pump is to sludge treating system processing, the 8th step: second pond water outlet is discharged through water outlet scale tank after flowing into sterilisation system.
Embodiment 3: a kind of BC new urban sewage treatment process, it is made up of following steps, the first step: sanitary sewage enters the pollution substance of coarse rack well removal large volume through city planting ductwork, coarse rack mesh is 100mm, second step: the water outlet of coarse rack well flows into sewage lifting pump sump, then is promoted to fine fack well from sewage lifting pump sump through lift pump, and fine fack will be tackled impurity and large particulate matter in water, and fine fack mesh is 25mm, the 3rd step: the water outlet of fine fack well flows into settling pit, and settling pit gets off the precipitate in water, the 4th step: settling pit water outlet flows into and mixes distribution reservoir, and in mixing distribution reservoir, second pond returned sluge, aeration tank backflow sewage and Yuan Shui mix, and its blending ratio is 1:1:2, the 5th step: mix in the water outlet in distribution reservoir and add nutritive medium, nutritive medium is 1:0.00000004~1:0.00000008 with water inlet volume ratio, nutritive medium is mainly tropical fresh fruit, edible ethanol and pure mountain spring water composition, add nutritive medium sewage to flow in JS-BC device, JS-BC device comprises biological reaction tank, netted rotary flora contact device, attached microbial film on contact, in JS-BC device, pass through gas blower air feed, sewage is by being grown in the absorption of the soil bacteria Bacillus on carrier in JS-BC device, preliminary degraded organism and ammonia nitrogen wherein, the 6th step: the water outlet in JS-BC device flows into aeration tank, gas blower is to aeration tank air feed, make maintenance dissolved oxygen content in aeration tank, sewage acts synergistically by soil bacteria Bacillus in aeration tank and peculiar microorganism, nitrifier, denitrifying bacteria, polyP bacteria, protozoon, metazoan, remaining organism, ammonia nitrogen and phosphorus in sewage are removed effectively, the pump of aeration tank effluent recycling is arranged on aeration tank end, is back to mixing distribution reservoir, in aeration tank, add PAC chemical auxiliary dephosphorization, the 7th step: the water outlet in aeration tank flows into second pond, and muddy water separates in second pond, second pond mud is back to and mixes in distribution reservoir through sludge reflux pump, and second pond residual sludge pump is to sludge treating system processing, the 8th step: second pond water outlet is discharged through water outlet scale tank after flowing into sterilisation system.

Claims (1)

1. a BC new urban sewage treatment process, is characterized in that: be made up of the first step following steps: sanitary sewage enters the pollution substance of coarse rack well removal large volume through city planting ductwork, coarse rack mesh is 25~100mm, second step: the water outlet of coarse rack well flows into sewage lifting pump sump, then is promoted to fine fack well from sewage lifting pump sump through lift pump, and fine fack will be tackled impurity and large particulate matter in water, and fine fack mesh is 1.5~25mm, the 3rd step: the water outlet of fine fack well flows into settling pit, and settling pit gets off the precipitate in water, the 4th step: settling pit water outlet flows into and mixes distribution reservoir, and in mixing distribution reservoir, second pond returned sluge, aeration tank backflow sewage and Yuan Shui mix, and its blending ratio is 1:1:2, the 5th step: mix in the water outlet in distribution reservoir and add nutritive medium, nutritive medium is 1:0.00000004~1:0.00000008 with water inlet volume ratio, nutritive medium is mainly tropical fresh fruit, edible ethanol and pure mountain spring water composition, add nutritive medium sewage to flow in JS-BC device, JS-BC device comprises biological reaction tank, netted rotary flora contact device, attached microbial film on contact, in JS-BC device, pass through gas blower air feed, sewage is by being grown in the absorption of the soil bacteria Bacillus on carrier in JS-BC device, preliminary degraded organism and ammonia nitrogen wherein, the 6th step: the water outlet in JS-BC device flows into aeration tank, gas blower is to aeration tank air feed, make maintenance dissolved oxygen content in aeration tank, sewage acts synergistically by soil bacteria Bacillus in aeration tank and different oxygen animalcule, nitrifier, denitrifying bacteria, polyP bacteria, protozoon, metazoan, remaining organism, ammonia nitrogen and phosphorus in sewage are removed effectively, the pump of aeration tank effluent recycling is arranged on aeration tank end, is back to mixing distribution reservoir, in aeration tank, add PAC chemical auxiliary dephosphorization, the 7th step: the water outlet in aeration tank flows into second pond, and muddy water separates in second pond, second pond mud is back to and mixes in distribution reservoir through sludge reflux pump, and second pond residual sludge pump is to sludge treating system processing, the 8th step: second pond water outlet is discharged through water outlet scale tank after flowing into sterilisation system.
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Cited By (14)

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CN104556557A (en) * 2014-12-05 2015-04-29 安徽华盛科技控股股份有限公司 CIT municipal domestic sewage treatment system
CN105060635A (en) * 2015-08-07 2015-11-18 柴建中 BBR urban sewage low temperature nitrogen removal treatment method
CN105084654A (en) * 2015-08-07 2015-11-25 柴建中 Sewage deodorization method
CN105084678A (en) * 2015-09-14 2015-11-25 柴建中 Improved method for treating urban sewage
CN105130126A (en) * 2015-09-14 2015-12-09 柴建中 New method of urban sewage treatment
CN105130110A (en) * 2015-08-24 2015-12-09 张芳 Sewage treatment process used advanced nitrogen and phosphorus removal system by utilizing sludge adsorptive separation
CN105152480A (en) * 2015-09-14 2015-12-16 柴建中 Municipal sewage treatment method
CN105174655A (en) * 2015-10-20 2015-12-23 柴建中 Treatment method of low-C/N ratio urban sewage
CN105174438A (en) * 2015-10-20 2015-12-23 柴建中 Improved MBR urban sewage treatment method
CN105621801A (en) * 2016-01-18 2016-06-01 江阴市弘诺机械设备制造有限公司 Biological reaction sewage treatment method
CN107417045A (en) * 2017-08-23 2017-12-01 北京交通大学 A kind of low carbon/nitrogen ratio wastewater efficient denitrification dephosphorization system and method
CN107746151A (en) * 2017-10-27 2018-03-02 安徽中韩净化设备有限公司 A kind of town domestic sewage purification process technique
CN110282820A (en) * 2019-06-25 2019-09-27 南京传业环保科技有限公司 A kind of high stability processing system for trade effluent
CN110395827A (en) * 2019-07-01 2019-11-01 绍兴市上虞三维化工有限公司 A kind of production wastewater treatment process and its processing system of BIT

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CN102079614A (en) * 2011-03-01 2011-06-01 青海洁神环境能源产业有限公司 Wastewater treatment method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104556557A (en) * 2014-12-05 2015-04-29 安徽华盛科技控股股份有限公司 CIT municipal domestic sewage treatment system
CN105060635A (en) * 2015-08-07 2015-11-18 柴建中 BBR urban sewage low temperature nitrogen removal treatment method
CN105084654A (en) * 2015-08-07 2015-11-25 柴建中 Sewage deodorization method
CN105130110B (en) * 2015-08-24 2017-04-19 张芳 Sewage treatment process used advanced nitrogen and phosphorus removal system by utilizing sludge adsorptive separation
CN105130110A (en) * 2015-08-24 2015-12-09 张芳 Sewage treatment process used advanced nitrogen and phosphorus removal system by utilizing sludge adsorptive separation
CN105152480A (en) * 2015-09-14 2015-12-16 柴建中 Municipal sewage treatment method
CN105084678A (en) * 2015-09-14 2015-11-25 柴建中 Improved method for treating urban sewage
CN105130126A (en) * 2015-09-14 2015-12-09 柴建中 New method of urban sewage treatment
CN105152480B (en) * 2015-09-14 2018-08-14 青海洁神环境能源产业有限公司 A kind of method of municipal sewage treatment
CN105174438B (en) * 2015-10-20 2018-08-10 青海洁神环境能源产业有限公司 A kind of method of improved MBR municipal sewage treatments
CN105174655A (en) * 2015-10-20 2015-12-23 柴建中 Treatment method of low-C/N ratio urban sewage
CN105174438A (en) * 2015-10-20 2015-12-23 柴建中 Improved MBR urban sewage treatment method
CN105621801A (en) * 2016-01-18 2016-06-01 江阴市弘诺机械设备制造有限公司 Biological reaction sewage treatment method
CN107417045A (en) * 2017-08-23 2017-12-01 北京交通大学 A kind of low carbon/nitrogen ratio wastewater efficient denitrification dephosphorization system and method
CN107746151A (en) * 2017-10-27 2018-03-02 安徽中韩净化设备有限公司 A kind of town domestic sewage purification process technique
CN110282820A (en) * 2019-06-25 2019-09-27 南京传业环保科技有限公司 A kind of high stability processing system for trade effluent
CN110395827A (en) * 2019-07-01 2019-11-01 绍兴市上虞三维化工有限公司 A kind of production wastewater treatment process and its processing system of BIT
CN110395827B (en) * 2019-07-01 2021-08-31 绍兴市上虞三维化工有限公司 BIT production wastewater treatment process and treatment system thereof

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