CN105417698A - Sewage treatment system - Google Patents
Sewage treatment system Download PDFInfo
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- CN105417698A CN105417698A CN201510755790.9A CN201510755790A CN105417698A CN 105417698 A CN105417698 A CN 105417698A CN 201510755790 A CN201510755790 A CN 201510755790A CN 105417698 A CN105417698 A CN 105417698A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
Abstract
The invention belongs to the technical field of sewage treatment and provides a sewage treatment system. The sewage treatment system comprises a sewage treatment passage which at least comprises an anaerobic tank, an aerobic tank, a sedimentation tank and a reaction tank, ferrate is adopted for sewage treatment in the reaction tank, and the anaerobic tank, the aerobic tank and the sedimentation tank are in sequential communication. A first output end of the sedimentation tank is communicated with the anaerobic tank or the aerobic tank, an input end of the reaction tank is communicated with a second output end of the sedimentation tank, an output end of the reaction tank is communicated with the sewage treatment passage, and sludge generated in the sedimentation tank is outputted through the first output end and the second output end respectively. The sewage treatment system has the advantages that sludge output in a sewage treatment process can be greatly reduced, and accordingly sludge treatment cost is reduced, and sewage treatment cost is reduced as well; in addition, ammonia nitrogen, phosphorus and organics in the sludge can be reduced, and consequently quality of water discharged from the sewage treatment system is improved.
Description
Technical field
The present invention relates to technical field of sewage, in particular to a kind of Sewage treatment systems.
Background technology
At present, in technical field of sewage, widely use active sludge to carry out the process of waste water.Active sludge is the general name of microbial population and their organic substances of depending on and inorganic substance, and active sludge can be divided into aerobic activated sludge and anaerobic grain active sludge, and active sludge is mainly used to dispose of sewage.Utilize Sewage Treatment for Activated Sludge can produce the mud needing discharge, and owing to containing the materials such as large amount of organic, ammonia nitrogen, phosphorus, heavy metal in the mud of discharge, and moisture content is wherein high, make the mud discharged be merely able to carry out to burn, landfill disposal, the cost of these treatment processs is higher, the storage of mud and transport inconvenience, and easily cause the pollution of soil and water, what this made mud is treated as the large problem demanding prompt solution of one in Sewage treatment systems.
Summary of the invention
The object of the present invention is to provide a kind of Sewage treatment systems, reduce the output of mud, make the sewage disposal of Sewage treatment systems more thorough, reduce the cost of disposing of sewage.
The present invention is achieved in that
A kind of Sewage treatment systems, for the treatment of municipal effluent, comprise: sewage disposal passage, described sewage disposal passage at least comprises anaerobic pond, Aerobic Pond, settling tank and utilize ferrate to carry out the retort of sludge treatment, described anaerobic pond, described Aerobic Pond and described settling tank are communicated with successively, described settling tank first output terminal is communicated with described anaerobic pond or described Aerobic Pond, the input terminus of described retort is communicated with the second output terminal of described settling tank, the output terminal of described retort and sewage disposal channel connection, the mud that described settling tank produces is respectively by described first output terminal, second output terminal exports.
Preferably, in described mud, the injected volume of ferrate is 0.02 ~ 600 μ g/mg, and described ferrate is Na2Fe04 or potassium ferrate.
Preferably, also comprise: air pump and the aeration tube for passing into air to described Aerobic Pond, one end of described aeration tube is connected with described air pump, and the other end of described aeration tube is arranged in described Aerobic Pond.Aeration tube makes air be spread in more dispersedly in Aerobic Pond, the oxygen of air is dissolved in the water more fully, so that aerobe reacts.
Preferably, also comprise: aeration head, described aeration head is provided with multiple pore, and described aeration head is connected with the tube wall of described aeration tube, and described pore is communicated with the tube chamber of aeration tube.Aeration head can allow air and water produce more violent contact, and the ratio in water of the oxygen dissolution in air is improved.
Preferably, also comprise: air valve, described air pump is communicated with described aeration tube by described air valve.Due to the reason of the activity of sewage input and aerobe, oxygen requirement when Aerobic Pond is disposed of sewage is in dynamic change, in order to make the input of oxygen be fully utilized, air pump controls air input, to increase, to subtract the input of air as required by air valve.
Preferably, described sewage disposal passage also comprises: for the grid of filter sewage, and described grid is communicated with described anaerobic pond, and sewage enters described anaerobic pond by described grid.Because the suspended matter in sewage, solid impurity are relatively many, these materials easily cause the blocking of each transport pipe, the various conveying pump housing, thus the reduction of the processing efficiency of sewage is even stopped.Various suspended matter and solid impurity then can filter out by the use of misgivings unit in mobile degree, process so that follow-up.
Preferably, described sewage disposal passage also comprises: equalizing tank, and described equalizing tank is communicated with described filtering unit, and described filtering unit is between described equalizing tank and described anaerobic pond.Owing to using the difference of the time period of water in city, the amount of the sewage of generation also can correspondingly change.For these reasons, the sewage input of Sewage treatment systems is also in change, but the treatment capacity of each treating pond has limit, therefore, in order to the treating pond of each treating pond abundant, Sewage treatment systems is also provided with equalizing tank, evenly, controllably can input sewage in each treating pond, avoids the treatment effect of the influence of fluctuations treating pond of the input due to sewage.
Preferably, described sewage disposal passage also comprises: preliminary sedimentation tank, and described preliminary sedimentation tank is communicated with described filtering unit, described anaerobic pond respectively.Preliminary sedimentation tank can except in decontaminated water can hypostasis and floating matter, after tentatively sinking, part that can be removed can hypostasis, grease and floating matter.The construction cost of preliminary sedimentation tank is low, easy to use, simple, can reduce use cost.
Preferably, also comprise: submersible agitator, described submersible agitator is arranged in described Aerobic Pond.
Preferably, described sewage disposal passage also comprises: Buffer Pool, and described Buffer Pool is connected with described settling tank, and the sewage that described settling tank is discharged enters described Buffer Pool.
Beneficial effect of the present invention:
The invention provides a kind of Sewage treatment systems, this Sewage treatment systems comprises sewage disposal passage, this sewage disposal passage at least comprises the anaerobic pond, Aerobic Pond and the settling tank that are communicated with successively, and sewage, from anaerobic pond imput process system, then exports via settling tank.The partial sludge produced in settling tank can directly be passed in treatment system, with aerobic bacteria, anerobe effect.In addition, the mud being passed into treatment system can supplement anerobe, aerobic bacteria in treatment system, keeps the balance of microorganism.Another part mud produced in settling tank passes in retort and ferrate effect, this retort can by combined in by Enrichment by Microorganisms in sewage in body ammonia nitrogen, phosphorus, heavy metal, VOCs emission is in water body and mud, and be oxidized, decompose some reluctant materials, and then pass in system.Because this Sewage treatment systems is in a dynamic sewage treatment process, utilize native system can realize circulation, continuous print sewage disposal, greatly reduce the subsequent treatment cost of mud, improve the processing efficiency of sewage.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present invention, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
The processing flow chart of the first Sewage treatment systems that Fig. 1 provides for inventive embodiments;
The processing flow chart of the second Sewage treatment systems that Fig. 2 provides for inventive embodiments;
The processing flow chart of the third Sewage treatment systems that Fig. 3 provides for inventive embodiments;
The processing flow chart of the 4th kind of Sewage treatment systems that Fig. 4 provides for inventive embodiments;
The processing flow chart of the 5th kind of Sewage treatment systems that Fig. 5 provides for inventive embodiments.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.The assembly of the embodiment of the present invention describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiments of the invention provided in the accompanying drawings and the claimed scope of the present invention of not intended to be limiting, but selected embodiment of the present invention is only represented.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Active sludge carrys out with organism the raw material that uses in the system of sewage disposal widely.Active sludge is generally made up of the organic matter of microflora, microbial adherence and inorganic substance, and active sludge can be divided into aerobic activated sludge and anaerobic activated sludge.Carry out utilizing active sludge producing a large amount of mud needing discharge in the treating processes of sewage disposal, the process of mud then becomes the large difficult point of one in sewage treatment process.
At sewage in biochemical treatment process, microorganism in active sludge constantly consumes the organic substance in sewage, in the organic substance be consumed, a part is oxidized with the energy provided needed for microbial life activity, another part organic substance is then utilized to synthesize new tenuigenin by microorganism, thus microorganism reproduction is multiplied, microorganism metabolic while, some old microbial death again, therefore create mud.
Consult 1 to Fig. 5, present embodiments provide a kind of Sewage treatment systems, comprise sewage disposal passage, sewage and mud flow in sewage disposal passage, as the space of sewage disposal.Sewage disposal passage at least comprises anaerobic pond, Aerobic Pond, settling tank and utilizes ferrate to carry out the retort of sludge treatment, and anaerobic pond, Aerobic Pond and settling tank are communicated with successively.Settling tank first output terminal is communicated with anaerobic pond or Aerobic Pond, the input terminus of retort is communicated with the second output terminal of settling tank, the output terminal of retort and sewage disposal channel connection, the mud that settling tank produces exports respectively by the first output terminal, the second output terminal.
The output terminal of retort is connected with anaerobic pond, after the settling tank partial sludge of discharging is processed in retort, then passes into anaerobic pond and processes; The output terminal of retort also can be communicated with Aerobic Pond, namely the settling tank partial sludge of discharging processed in retort after, then pass into Aerobic Pond and process.Another part mud that settling tank produces directly can pass in anaerobic pond or Aerobic Pond and react with anerobe, aerobic bacteria.Sewage disposal passage can also comprise water collecting basin, aerated grit chamber etc., to make Sewage treatment systems can reach better wastewater treatment efficiency.In aerated grit chamber, a large amount of gas makes the interphase interaction of sandstone, and the organic pollutant on sandstone surface is eliminated, thus plays cleaning action to sandstone, to collect, water body is played to the effect of preaeration simultaneously.
Sewage work can produce a large amount of mud, and the subsequent disposal of mud is a great problem.Mud generally processes by the following method: 1, utilized as fertilizer by mud.Owing to containing the necessary trace element of biology growing such as a large amount of organism and nitrogen, phosphorus, potassium in mud, mud tool can make full use of for organism, but, containing a large amount of poisonous and harmful substances in mud, as benzene, sterilant and some heavy metals, thus cause the pollution in soil, and plants enriched poisonous and harmful substances enters human body along with food chain, damages human body.2, mud is carried out harmless treatment, then carry out landfill, but this method exists problems such as the intractability of mud is large, transportation cost is high, appropriation of land rate is high, and the environment in landfill district can be destroyed.
At present, how reduced the generation of mud by Decrement Technique, thus reduce the follow-up difficulty of sewage disposal.Namely Decrement Technique is the output by adopting the modes such as various biology, chemistry, physics to reduce mud in Sewage treatment systems, thus reduces the environment and economy cost of lignin-sludge.Existing employing ozone, chlorine are washed oxygenant and are oxidized cell, make cytolysis, bacterium is broken down into matrix, the phosphorus in bacterial body, ammonia nitrogen, organic substance is discharged simultaneously, thus the treatment system that again can flow into Sewage Plant through lignin-sludge is carried out a biological disposal upon.
The present invention uses ferrate to process mud, the hexavalent iron of tool in ferrate, under acidic conditions and alkaline condition, all there is very high oxidisability, but also original raw ferric iron has the effects such as flocculation, absorption, precipitation, the various suspensions in water body, solid particulate matter can be precipitated.The ferrate of high oxidative can destroy the materials such as the various protein in the cell walls of bacterium, cytolemma and cell, thus kills bacterium.To be flocculated by the hydrolysate of ferrate algae in water body, bacterium simultaneously.In addition, the organic substance in water body can be oxidized to the material such as carbonic acid gas, water, realizes the object of purification.
Mud after the ferrate process in retort, can again import in anaerobic pond or Aerobic Pond, and in Sewage treatment systems circular treatment, by effects such as aerobic reaction, anaerobic reaction, precipitations, make the poisonous and harmful substances in sewage can remove and greatly reduce the output of mud more up hill and dale.
Ferrate can adopt Na2Fe04 or potassium ferrate, and the making of ferrate and Na2Fe04 is relatively simple, use cost is lower, is conducive to using widely.In the present embodiment, the injected volume of ferrate is the ferrate that every milligram of dewatered sludge throws in 0.02 ~ 600 microgram.
Because Aerobic Pond needs oxygen to carry out aerobic reaction, therefore, need to pass into oxygen in Aerobic Pond, to promote the metabolism of aerobe.The storage of oxygen, transport inconvenience relatively, generally passed into air, contacted by air with water, make oxygen dissolution in water in Aerobic Pond.In order to enable the oxygen in air be dissolved in the water more fully, Sewage treatment systems is provided with air pump and the aeration tube for passing into air to Aerobic Pond.One end of aeration tube is connected with air pump, and the other end of aeration tube is arranged in Aerobic Pond.Air passes in water with the traveling of dispersion by aeration tube, and the water made and the contact area of air strengthen, thus improves dissolved oxygen amount.
Preferably, Sewage treatment systems is also provided with aeration head, and aeration head is provided with multiple pore, and aeration head is connected with the tube wall of aeration tube, and pore is communicated with the tube chamber of aeration tube.Aeration head makes the air passing into Aerobic Pond enter in water body with the formation of bubble, and bubble and water body produce violent contact, thus promotes the exchange of substance between air and water, improves the dissolved oxygen amount in water body further.In addition, the mixture of gas to the water body in Aerobic Pond and mud that aeration tube produces plays stirring action, makes can contact fully between various material and organism, the materials such as organism, ammonia nitrogen, phosphorus are sufficiently removed.
In Aerobic Pond, sewage and active sludge fully mixes the contact that can promote aerobic bacteria and various poisonous, harmful organic substance.Therefore, agitator can be set in Aerobic Pond, such as, submersible agitator, submersible agitator can improve dissolved oxygen amount on the one hand to a certain extent; On the other hand, can promote that solid-liquid mixes by stirring, playing the effect of homogeneous.
When need in Aerobic Pond during input air, aeration tube be connected with extraneous source of the gas, such as, and gas blower, air pump.Because the oxygen requirement of Aerobic Pond is correlated with according to the pollution level of the amount of sewage and sewage, therefore, need to control the input of air.Whether thus, Sewage treatment systems utilizes air valve to be connected with aeration tube by air pump, control air and input, avoid the transition loss of equipment by air valve.Preferably, utilize under meter to monitor the input of air, make the input of air more accurate.
Due to the source more complicated of municipal effluent, may there is a large amount of suspended substances or solid sediment in water body, the existence of these materials easily causes the blocking of various pipeline, the pump housing, affects the normal processing of sewage.Based on above-mentioned away from, Sewage treatment systems also includes the filtering unit for filter sewage.Filtering unit is communicated with anaerobic pond, and sewage enters anaerobic pond by filtering unit.In the present embodiment, filtering unit adopts grid, and grid comprises framework and the continuous metal grizzly bar arranged of many groups, and metal grizzly bar is connected with framework, metal gate bar shaped waviness structure.Grid is positioned over the entrance of sewage obliquely.Metal grizzly bar cyclically rotates, and its turning direction is contrary with the flow direction of sewage, and the suspension in water body, solid matter are taken away by counter-rotational metal grizzly bar, thus the suspension reduced in water body and solid matter.
Preferably, Sewage treatment systems also comprises preliminary sedimentation tank, and preliminary sedimentation tank is communicated with filtering unit, anaerobic pond respectively.Through the sewage of filtering unit process, partial suspended wherein, solid matter are eliminated, but wherein also may contain some throw outs and suspended matter.Therefore, Sewage treatment systems is also provided with preliminary sedimentation tank, by preliminary precipitation, removes the organism of the suspended matter in sewage, settleable matter and part.The use of preliminary sedimentation tank can alleviate the load of each treating pond follow-up, makes the tiny particulate matter in sewage coagulate wadding for larger particle, thus strengthening solid-liquid separation effect, also can play removal effect to some colloidalmaterials simultaneously.Removal effect to the suspended substance in sewage can be improved by adding flocculation agent in preliminary sedimentation tank, flocculation agent can adopt Tai-Ace S 150, iron(ic) chloride, sodium polyacrylate, polycyclic oxygen alkene acid amides etc., flocculation agent can be enable to disperse more fully, be dissolved in water body by dispersing and dissolving device.
Because Sewage treatment systems is in a dynamic treating processes of process, sewage is being injected continuously in system, and the generation of sewage in city has different amounts in the different time periods, if in the direct import system of sewage of different amount, then may impact Sewage treatment systems, and also there is different difference in the pollution level of sewage.On the other hand, biological treatment system to water quality and the water yield relatively responsive, the water body difference of input is easy too greatly causes larger impact to water body, and processing efficiency and effect are declined greatly.Based on the consideration of the problems referred to above, Sewage treatment systems is also provided with equalizing tank, and equalizing tank is communicated with filtering unit, and filtering unit is between equalizing tank and anaerobic pond.First sewage carried out preliminary homogeneous by equalizing tank, all measured, and can also carry out preliminary precipitation further, potential of hydrogen regulates etc., and then export sewage to subsequent processing device.
The workflow of the Sewage treatment systems of the present embodiment body confession is as follows:
The first step, the sewage imported via municipal process enters sewage work, sewage in equalizing tank homogeneous, all measure; Second step, enters grid to remove suspended matter, the sedimentable matter in sewage; 3rd step, sewage enters preliminary sedimentation tank and precipitates, flocculation; 4th step, sewage enters anaerobic pond reaction, enters Aerobic Pond reaction subsequently, then enters settling tank and precipitate.The mud that settling tank produces is separated into returned sluge and mud, and wherein returned sluge is passed into anaerobic pond continuation reaction, supplements anerobe simultaneously, and can proceed follow-up aerobic reaction, thus form the process of continuous print circulation.On the other hand, mud enters retort, is produced by the ferrate process in retort, makes organic substance be oxidized to the innoxious substances such as titanium dioxide state, water; Secondly, being enriched in the materials such as the ammonia nitrogen in body, phosphorus by organism and being released, reacting by importing to anaerobic pond, and follow-up Aerobic Pond reaction can be entered.Owing to adopting active sludge to carry out water treatment in Sewage treatment systems, and each processing unit can affect the growth activity of aerobic bacteria and anerobe to some extent or be carried out treatment system, therefore, in order to keep the activity of flora in Sewage treatment systems and the stable of biomass, throwing in Aerobic Pond and anaerobic pond and having biologic packing material.Biologic packing material can be used as the dirt settling of microorganism, prevents the sewage by flowing from washing away loss.Biologic packing material is the growth of organism, breeding provides a good environment, and under the shock action of current, microorganism has good activity, strengthens the metabolism of microorganism, thus improves treatment effect.In addition, by adding organized enzyme in biologic packing material, such as, proteolytic enzyme, oxydo-reductase, desaturase etc. can promote processing power that is poisonous in the sewage that microorganism is right, objectionable constituent.
Due to sewage through process discharge after may there is larger acid, basicity is poor, therefore, Sewage treatment systems can arrange Buffer Pool, and sewage after acid-base neutralisation, then is discharged outside system.Particularly, settling tank arranges spillway away from the one end at the bottom of pond, and spillway is communicated with Buffer Pool by pipeline, and the sewage of discharging in settling tank is discharged by spillway, then enters Buffer Pool by pipeline.Be provided with pH sensor, sour hold-up vessel and alkali hold-up vessel in Buffer Pool, sour reagent can adopt sulfuric acid, hydrochloric acid etc., and alkali reagent can adopt sodium hydroxide, potassium hydroxide etc.By the pH value in pH sensor measurement Buffer Pool, then acid or alkali are thrown in Buffer Pool.
Sewage treatment systems provided by the invention dispose of sewage after the output of mud, in the mud that Sewage treatment systems is discharged, the content of chemical oxygen demand (COD), ammonia nitrogen, phosphorus is as shown in table 1, and wherein the injected volume of ferrate is with the weighing scale of iron in the ferrate thrown in the dewatered sludge of every milligram.
The character synopsis of table 1 ferrate injected volume and mud
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a Sewage treatment systems, for the treatment of municipal effluent, it is characterized in that, comprise: sewage disposal passage, described sewage disposal passage at least comprises anaerobic pond, Aerobic Pond, settling tank and utilize ferrate to carry out the retort of sludge treatment, described anaerobic pond, described Aerobic Pond and described settling tank are communicated with successively, described settling tank first output terminal is communicated with described anaerobic pond or described Aerobic Pond, the input terminus of described retort is communicated with the second output terminal of described settling tank, the output terminal of described retort and sewage disposal channel connection, the mud that described settling tank produces is respectively by described first output terminal, second output terminal exports.
2. Sewage treatment systems according to claim 1, is characterized in that, in described mud, the injected volume of ferrate is 0.02 ~ 600 μ g/mg, and described ferrate is Na2Fe04 or potassium ferrate.
3. Sewage treatment systems according to claim 1, it is characterized in that, also comprise: air pump and the aeration tube for passing into air to described Aerobic Pond, one end of described aeration tube is connected with described air pump, and the other end of described aeration tube is arranged in described Aerobic Pond.
4. Sewage treatment systems according to claim 3, is characterized in that, also comprises: aeration head, and described aeration head is provided with multiple pore, and described aeration head is connected with the tube wall of described aeration tube, and described pore is communicated with the tube chamber of aeration tube.
5. the Sewage treatment systems according to claim 3 or 4, is characterized in that, also comprises: air valve, and described air pump is communicated with described aeration tube by described air valve.
6. Sewage treatment systems according to claim 1, is characterized in that, described sewage disposal passage also comprises: for the grid of filter sewage, and described grid is communicated with described anaerobic pond, and sewage enters described anaerobic pond by described grid.
7. Sewage treatment systems according to claim 6, is characterized in that, described sewage disposal passage also comprises: equalizing tank, and described equalizing tank is communicated with described filtering unit, and described filtering unit is between described equalizing tank and described anaerobic pond.
8. Sewage treatment systems according to claim 7, is characterized in that, described sewage disposal passage also comprises: preliminary sedimentation tank, and described preliminary sedimentation tank is communicated with described filtering unit, described anaerobic pond respectively.
9. Sewage treatment systems according to claim 1, is characterized in that, also comprises: submersible agitator, and described submersible agitator is arranged in described Aerobic Pond.
10. Sewage treatment systems according to claim 1, is characterized in that, described sewage disposal passage also comprises: Buffer Pool, and described Buffer Pool is connected with described settling tank, and the sewage that described settling tank is discharged enters described Buffer Pool.
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| CN105884146B (en) * | 2016-06-24 | 2018-07-24 | 湖南易净环保科技有限公司 | A kind of rural area decentralized type sewage processing system |
| CN106745744A (en) * | 2016-12-31 | 2017-05-31 | 成都美富特膜科技有限公司 | Sewage water treatment method and sewage disposal system |
| CN106745744B (en) * | 2016-12-31 | 2020-07-03 | 四川美富特生态科技有限责任公司 | Sewage treatment method and sewage treatment system |
| US20220242768A1 (en) * | 2021-02-04 | 2022-08-04 | Ferrate Solutions Corp | Chemical method for concurrent removal of ammonia nitrogen and phosphorus from fluid |
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