CN101525204A - Method for treating village sewage and specific device thereof - Google Patents
Method for treating village sewage and specific device thereof Download PDFInfo
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- CN101525204A CN101525204A CN200910082852A CN200910082852A CN101525204A CN 101525204 A CN101525204 A CN 101525204A CN 200910082852 A CN200910082852 A CN 200910082852A CN 200910082852 A CN200910082852 A CN 200910082852A CN 101525204 A CN101525204 A CN 101525204A
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Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses a method for treating village sewage and a specific device thereof. The specific device comprises a sump pump and a multifunctional deflection processing module connected with the sump pump. The multifunctional deflection processing module consists of three anaerobic units which are named Pool 1-3, two aerobic units which are named Pool 4-5, and a depositing unit named Pool 6; the pools are connected by pipelines. The anaerobic units are all provided with vent holes; the aerobic units are both provided with suspended upper and lower metal meshes; compartments between the metal meshes are filled with fillings; the lower layer of metal mesh is provided with a gas distributing hole which is connected with an aeration machine. The detailed operation steps of the method are described in the specification. The method and the specific device of the invention integrates physical processing techniques including depositing, filtering and the like, and biochemical processing techniques including anaerobic oxidation, aerobic oxidation and the like, thereby degrading organic substances in the sewage, fixing inorganic salt and reducing nutriment like nitrogen and phosphorus. The method and the specific device have the advantages of large hydraulic load and excellent processed water quality. Therefore, the method and the specific device are especially suited to national conditions of our country.
Description
Technical field
The present invention relates to the device and method of sewage disposal, particularly a kind of rural sewage water treatment method and isolated plant thereof specifically adopt multi-functional baffling combination biological filter processing mode.
Background technology
For a long time, the living drainage of vast Rural areas, domestic refuse and the agricultural wastes problem of discharging arbitrarily do not cause basic attention, human and animal excreta, domestic refuse and living drainage the like waste major part do not obtain handling, arbitrarily be deposited in road both sides, the edge of a field, pool irrigation canals and ditches or directly be discharged in the water bodys such as rivers and canals, make " sewage disorderly sprinkles, rubbish disorderly falls, muck huddles, faggot is disorderly stamped, livestock and poultry run chaotically ", " indoor modernization, outdoor filthy " become the real picture of some rural ecological environment.According to statistics, the village of China 96% does not have discharge conduit and Sewage treatment systems at present, and productive life sewage arbitrarily discharges, and has become the important restraining factors of rural area waterhead area potential potential safety hazard, new socialist countryside harmonious development.Undressed domestic sewage in rural areas by using on the one hand, is a rural potable water seedbed potential potential safety hazard; On the other hand, wherein containing more nitrogen and phosphorus, also is one of major reason of rivers and lakes eutrophication.Therefore, strengthen life in the countryside drainage collection, processing and resource utilization Facilities Construction, avoid directly discharging the pollution that causes rural area water body, soil and agricultural-food because of sanitary sewage, guarantee that water source, rural area safety and peasant are healthy, it is an important content strengthening infrastructure, advance the village renovation in the new countryside construction, also be urgent need that current rural people's habitat environment improves to be needed to solve, the most urgent, distinct issues, have important practical significance.
Yet the mode of focusing on a large scale of China's city domestic sewage employing at present is not suitable for applying in vast Rural areas, mainly shows as: large-scale centralized treatment plant needs bigger construction cost be used for setting up complicated network of drains.In the very low area of the density of population, this investment exceeds an order of magnitude with the gross investment of ratio sewage treatment plant.Particularly in the Rural areas, the group that lives relatively disperses, and this expense will be higher.In addition, the pipeline rehabilitation expense is also very expensive.The ecological wastewater processing technology is low because of its construction costs, working cost is few, construction material is easy to get, good being subjected to of easy and simple to handle, treatment effect both domestic and externally generally paid attention to, and the many countries that comprise states such as U.S., day, English, method, Russia are all at extensive this technical finesse living drainage of employing.China is in " the Seventh Five-Year Plan ", " eight or five ", " 95 " and Tenth Five-Year Plan Period, domestic many scientific research institutions have carried out the experimental study and the engineering demonstration of a large amount of employing unregulated power anaerobism and the draining of ecotechnology processing small town living, sub-district living drainage and industrial water drainage, have obtained multinomial dissimilar Ecological Disposal practical technique with independent intellectual property right.These units have successively carried out under the primary ambient condition, serial ecotechnologys such as artificial swamp, hollow billet infiltration and quick diafiltration are handled the feasibility of urban life draining, obtained serial important parameter, and in Jiaxing, different areas such as Shenyang, Shenzhen and Panjin have carried out the engineering demonstration.But, the characteristics of life in the countryside draining be disperse, amount is little, away from gregarious and big water body, water environment capacity is little and level of management are low, handle if these technology are applied to the life in the countryside draining, have also that the pollutant removal flux is low, fluctuation of service, matrix filtrate easily stop up all the year round, dephosphorization removing nitric efficiency is poor, working cost is high or waste the restriction bottleneck of technical elements such as land resources.
Summary of the invention
The objective of the invention is defective at above-mentioned prior art, a kind of rural sewage water treatment method and isolated plant thereof are provided, this method and isolated plant are physical treatment technology and biochemical processings such as anaerobic oxidation, aerobic oxidation such as integrated use precipitation, filtration, organism in the sewage is degraded, inorganic salt are fixed, nutrition such as nitrogen phosphorus are minimized, and have the big and good advantage of processing back water quality of hydraulic load, are particularly suitable for the national conditions needs of China.
The technical scheme taked of the present invention is to achieve these goals: a kind of rural sewage disposal isolated plant, comprise submersible sewage pump and coupled multi-functional baffling processing module, described multi-functional baffling processing module comprises six ponds in turn according to the drainage flow direction, be respectively three anaerobic unit, two aerobic units and a precipitation unit, adjacent processing unit connects by duct segments; Wherein No. 1 pond, No. 2 ponds and No. 3 ponds are that anaerobic unit and each unit are equipped with venting hole, and submersible sewage pump connects No. 1 pond, is provided with the three-phase sparger in No. 3 ponds; No. 4 ponds and No. 5 ponds are to be equipped with unsettled upper and lower woven wire in aerobic unit and the pond, upper and lower woven wire forms and fills the filler that is used for aerobic reaction in compartment, the compartment, the woven wire of lower floor is provided with qi-emitting hole, and qi-emitting hole links to each other with aerator by gas distribution pipe; No. 6 ponds are precipitation unit.Described multi-functional baffling processing module integrates functions such as septic tank, anaerobic treatment, aerobic treatment, biological floating bed, precipitation, and the organism in the sewage changes into harmless material under the anaerobic and aerobic action of microorganisms.
For effluent quality is done advanced treatment, described rural sewage disposal isolated plant, also comprise the ecological filtration module of the multimedium that is connected with described multi-functional baffling processing module water outlet by pipeline, the ecological filtration module of multimedium is the filter tank of containing the multimedium filter material layer.The ecological filtration module of multimedium is as the advanced treatment unit of multi-functional baffling processing module, can further remove total nitrogen, total phosphorus, suspended substance and COD (Chemical Oxygen Demand chemical oxygen demand (COD)) in the sewage, make effluent quality satisfy " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) secondary standard.
Described rural sewage disposal isolated plant, the top of the ecological filtration module of multimedium is the aeration material, is specially the macroporous netlike carrier; The filler of bottom is formed by 4 layers at least.The bottom of each layer filler is permeable filtering layer, and the top is the multimedium filter material layer; Wherein, the multimedium filter material layer at each layer top is that multimedium filtrate and permeable filtrate are alternately filled, and this promptly forms " product " font and fills.As preferably, the weighting material of described multimedium filter material layer is the multimedium filtrate, based on the function haydite of synthetic, be aided with the modified zeolite of particle diameter greater than 2mm, function haydite and particle diameter are volume ratio 1: 10～5: 1 greater than the filling proportional range of the modified zeolite of 2mm.The weighting material of permeable filtering layer is permeable filtrate, is that gravel and the particle diameter of 3-40mm formed greater than the modified zeolite of 2mm by particle diameter, and median size is the gravel of 10mm and particle diameter greater than the filling ratio of the modified zeolite of 2mm is volume ratio 10: 1～1: 1.
In order to prolong the treatment time of sewage, the pipeline that connects between the described unit is the baffling pipe.
The discharge of mud for convenience, described unit is provided with mudhole near the place, bottom.
In order to prevent that bio-reactor from stopping up and further improve the active sludge nitric efficiency that described filler is the urethane filler of coarse pored.
In order to disperse the impact of current, further precipitate the mud in the sewage, the baffling pipe that stretches in described No. 6 ponds is a water spraying pipe, the port of water spraying pipe is horn-like.
The present invention also comprises a method, is the rural sewage water treatment method according to described rural sewage disposal isolated plant, specifically comprises the steps:
Steps A is sewage transport to 1 pond, and via No. 1 Chi Yanyangyanghuachiization excrement with regulate water conditioning;
The sewage that step B handled through No. 1 pond enters No. 2 Chi Yanyangyanghuachi by pipeline and carries out anaerobic treatment;
The sewage that step C handled through No. 2 ponds enters Chi Yanyangyanghuachi No. 3 by pipeline, under the effect of three-phase sparger water, mud, gas is separated in No. 3 ponds, and water enters the pond No. 4 through piping, and sludge settling is at the bottom of the pond, and gas is discharged by venting port;
The sewage that step D handled through No. 3 ponds enters Chi Youyangyanghuachi No. 4 by pipeline, aeration is carried out in No. 4 ponds do aerobic oxidation and handle;
Step e sewage enters Chi Youyangyanghuachi No. 5 by pipeline, repeats above-mentioned steps D;
Enter the ponds precipitation No. 6 behind the sewage that step F was handled through No. 5 ponds, further precipitate the suspended substance of sewage, the final treating water that satisfies standard-required of discharging.
Described method is to integrate functions such as septic tank, anaerobic treatment, aerobic treatment, biological floating bed, precipitation, makes the organism in the sewage change into harmless material under the anaerobic and aerobic action of microorganisms.
Described rural sewage water treatment method, also comprise operational process by the ecological filtration module of multimedium, concrete is sewage is through the water distributor of filter tank filling surface " product " font filter material layer by being made up of multimedium filter material layer and permeable filtering layer step by step, discharges after entering the water leg bottom the filter tank.When sewage was flowed through the multimedium ecological filter through multi-functional baffling processing module, its surface is tackled and be adsorbed on to pollutent by the multimedium filtrate, and microorganism utilizes organism to carry out growth and breeding, and attached to forming microbial film on the filtrate.Through after a while, the microbial film maturation is perched organism that the microorganism on microbial film shows to flow through as nutrition, to the organism in the sewage adsorb, decomposing oxidation, thereby the sewage that flows through ecological filter is purified.
Described rural sewage water treatment method, wherein, the aeration among described step D and the E adopts the intermittent aeration mode.Employing helps the intermittent aeration mode of denitrification denitrogenation, and aeration rate only is 1/3～1/5 of ordinary activated sludge and fixed-bed reactor.
Beneficial effect of the present invention can be summarized as following five aspects:
1. compared to existing technology, multi-functional baffling processing module in the rural sewage disposal isolated plant of the present invention is as the pretreatment unit of the ecological filtration module of multimedium, have the strong characteristics of the organism ability of removal, efficiently solve that microbial film internal layer anaerobion breeds in a large number in the multimedium ecological filter because of higher organic concentration in the sewage causes, produce anaerobism differential hydrolysis products, thereby influence the problem of effluent quality, also can effectively solve simultaneously because of microbial film blocked up, make that hole diminishes between filtrate, filter tank ventilation situation variation, influence entering of oxygen, even cause the filtrate blocking problem.
2. compared to existing technology, the ecological filtration module of multimedium in the rural sewage disposal isolated plant of the present invention is as the advanced treatment unit of multi-functional baffling processing module, can further remove total nitrogen, total phosphorus, suspended substance and COD in the sewage, make effluent quality satisfy " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) secondary standard.
3. compared to existing technology, multi-functional baffling processing module in the rural sewage disposal isolated plant of the present invention has septic tank, anaerobism suspension, biological floating bed and settling tank function simultaneously, integrate anaerobism, aerobic processes, have that floor space is little, initial cost economizes, working cost low (or nothing), be difficult for to stop up, convenient management, do not have potential ecological safety hidden danger, and can whole year operation etc. characteristics.
4. compared to existing technology, the ecological filtration module of the multimedium in the rural sewage disposal isolated plant of the present invention adopts " product " font stuffing means, reaches to guarantee that flow can guarantee the trim point of the residence time again.Multimedium filtering layer in the multimedium ecological filter is the water purification medium, and permeable filtering layer is a water stream channel, the function differentiation of water purification medium and water stream channel, and the reaction times that can increase pollutent can effectively prevent the obstruction of the ecological filtration module of multimedium again.
5. compared to existing technology, rural sewage water treatment method of the present invention has been integrated sewage disposal technologies such as physical treatment process, anaerobic treatment method, activated sludge process and biomembrance process, organism in the sewage is degraded, inorganic salt are fixed, nutrition such as nitrogen phosphorus are minimized, have the big and good advantage of processing back water quality of hydraulic load, be particularly suitable for the national conditions needs of China.
Description of drawings
Fig. 1 is the plot plan of rural sewage disposal isolated plant of the present invention;
Fig. 2 is along the sectional view of A-A line among Fig. 1;
Fig. 3 is along the sectional view of B-B line among Fig. 1;
Fig. 4 is along the sectional view of C-C line among Fig. 1.
1 submersible sewage pump, 2 waste pipes, 3 water inlet directions, 4 venting holes, 5 vapor pipes, 6 inlet pipe, 7 aerators, 8 water outlet directions, 9 multi-functional baffling processing module water outlets, 10 mud discharging house stewards, 11 mud discharging arms, 12 spoil disposal gate valves, No. 131 ponds, No. 142 ponds, No. 153 ponds, No. 164 ponds, No. 175 ponds, No. 186 ponds, 19 hydraulic pipes, 20 water distributors, 21 multimedium ecological filter treatment unit water outlets, 22 water inlet gate valves, 23 reverse checkvalves, 24 baffling pipes, 25 mudholes, 26 three-phase spargers, 27 woven wires, 28 gas distribution pipes, 29 urethane fillers, 30 qi-emitting holes, 31 wallsten stents, 32 pyramid type iron sheets, 33 water spraying pipe carriages, 34 water spraying pipe, 35 water legs, 36 permeable filtering layers, 37 multimedium filtering layers, 39 aeration materials.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Shown in Fig. 1-4, rural sewage disposal isolated plant of the present invention, as most preferred embodiment, it comprises multi-functional baffling processing module and the ecological diafiltration module of multimedium.Its standard load: 24m
3/ d; Design maximum load: 48m
3/ d; Effluent quality: COD (Chemical Oxygen Demand chemical oxygen demand (COD))≤100mg/L, TSS (suspended substance)≤30mg/L, BOD (Biochemical Oxygen Demand biochemical oxygen demand (BOD))≤30mg/L, NH
3-N (ammonia nitrogen)≤25 (30) mg/L, total phosphorus≤3mg/L promptly satisfies " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) secondary standard.
In this example, multi-functional baffling processing module main part is a cylindricality, pond by sizes such as 6 is formed, in turn comprise No. 1 pond 13, No. 2 ponds 14, No. 3 pond 15 three anaerobic unit by water inlet direction 3 to water outlet direction 8 according to the drainage flow direction, 18 1 settling tank unit of No. 4 pond 17 2 aerobic units in 16, No. 5 ponds and No. 6 ponds are formed.Its whole outer profile size is length * wide * height: 7.15m * 2.4m * 2.4m.Adjacent unit is to connect by duct segments.In order to prolong the treatment time of sewage, described pipeline adopts baffling pipe 24 in this example.
Wherein, the working process of multi-functional baffling processing module is divided into following three phases substantially.
Fs, anaerobic treatment:
Shown in Fig. 1-2, submersible sewage pump 1 connects No. 1 pond 13 by reverse checkvalve 23, water inlet gate valve 22 through waste pipe 2, through the change excrement in No. 1 pond 13 and after regulating water quality, enter pond 14 No. 2 by baffling pipe 24 bafflings, No. 2 pond 14 is the anaerobic oxidation pond, entering 15, No. 3 ponds, No. 3 ponds 15 through 14 backs, No. 2 ponds by baffling pipe 24 bafflings is the anaerobic oxidation pond.Three-phase sparger 26 has water, mud, the isolating function of gas in No. 3 ponds 15, thereby reduces sludge loss.Under the effect in No. 3 ponds 15, water enters pond 16 No. 4 through baffling pipe 24, and sludge settling is at the bottom of the pond, and gas is discharged through venting hole 4 by vapor pipe 5.Above-mentioned anaerobic unit can be grown in separately the control environment acid-producing bacteria and methanogen respectively, helps the degraded of pollutent.
Place the granule sludge that has anerobe in the anaerobic unit, the organism in the sewage is carried out anaerobic oxidation.The anaerobic biological treatment method is to utilize facultative anaerobe and obligatory anaerobic bacteria that larger molecular organics in the sewage is degraded to low molecular compound, and then is converted into the organic wastewater treatment of methane, carbonic acid gas, is divided into two stages of acid digestion and alkaline digest.In the acid digestion stage.By the effect of acid-producing bacteria excretory exoenzyme, make larger molecular organics become simple organic acid and alcohols, aldehydes ammonia, carbonic acid gas etc.; In the alkaline digest stage, the meta-bolites of acid digestion further resolves into the biogas that methane, carbonic acid gas etc. constitute under the methanogen effect.This treatment process is mainly used in processing such as the organic waste water of high density and fecal sewages.
Subordinate phase, aerobic treatment:
Shown in Fig. 1-2, sewage enters No. 4 ponds 16 and No. 5 ponds 17 by baffling pipe 24 bafflings, these two aerobic oxidation ponds in turn through 15 backs, No. 3 ponds.Aerobic unit helps decarburization bacterium and denitrifier and is grown in respectively separately in the adapt circumstance, helps the removal of organism and ammonia nitrogen.Aerobic unit is designed to biological floating bed, referring to Fig. 2, specifically is in No. 4 ponds 16 and No. 5 ponds 17 unsettled upper and lower woven wire 27 to be set respectively, and fills the filler that is used for aerobic reaction in the compartment that upper and lower woven wire 27 forms.Woven wire 27 is supported by wallsten stent 31.In order to prevent that bio-reactor from stopping up and further to improve the active sludge nitric efficiency, described filler is the urethane filler 29 of coarse pored, so both solved the blockage problem of fixed-bed bioreactor, solved again that the active sludge nitric efficiency is poor, volumetric loading is low and problem such as sludge output is big.The woven wire 27 of No. 4 ponds 16 and No. 5 pond 17 lower floors is provided with qi-emitting hole 30, and qi-emitting hole 30 links to each other with aerator 7 by gas distribution pipe 28 and inlet pipe 6.Adopt the blast aeration machine to give gas in this example.Aerobic unit (No. 4 pond 16 and No. 5) adopts the intermittent aeration mode that helps denitrification denitrogenation, and aeration rate only is 1/3～1/5 of ordinary activated sludge and fixed-bed reactor.Wherein Institute of Micro-biology is aerobic is supplied with by blast aeration, the biofilm development that filling surface adheres to is to certain thickness, the microorganism of filler wall can carry out anaerobic metabolism because of anoxic, the souring that gas that produces and aeration form can cause biomembranous coming off, and the growth of promotion true tumor film, at this moment, the microbial film that comes off will flow out outside the pond with water outlet.
Aerobic unit has following characteristics: 1) because packing specific area is big, and aerobic condition is good in the pond, and the biosolids amount of unit volume is higher in the pond, therefore, biological contact oxidation pond has higher volumetric loading; 2) owing to biosolids amount in the pond is many, current mix fully, so the cataclysm of water quality and quantity is had stronger adaptive faculty; 3) surplus sludge volume is few, does not have the sludge bulking problem, and operational management is easy.
Phase III, settling tank is handled:
For reoxygenation and the suspended substance precipitation that helps water, to reduce suspended substance to the unitary impact of subsequent disposal, the baffling pipe 24 that stretches in described No. 6 ponds 18 is water spraying pipe 34, and the port of water spraying pipe 34 is horn-like.Water spraying pipe 34 is to be made by pyramid type iron sheet 32, is installed in No. 6 ponds 18 by water spraying pipe carriage 33.The water of discharging from 17 aerobic oxidation ponds, No. 5 ponds by the trumpet type water spraying pipe 34 in No. 6 ponds 18 of precipitation dispensing, disperses the water impact of current, further precipitates the mud in the sewage.The effluent quality of from the multi-functional baffling processing module water outlet 9 in No. 6 ponds 18, discharging: COD≤150mg/L, suspended substance≤80mg/L, BOD≤60mg/L satisfies " farmland irrigating water's quality standard " (GB5084-2005) requirement.
Shown in Fig. 1-2, the discharge of mud for convenience, each processing unit is provided with mudhole 25 near the place, bottom, and mudhole 25 connects mud discharging arm 11 by spoil disposal gate valve 12 and is finally discharged by mud discharging house steward 10.
The diafiltration stage of the ecological filtration module of multimedium:
As shown in Figure 3-4, the ecological filtration module outer profile size of multimedium length * wide * height is 1.8m * 2.4m * 2.1m, and the top of module is aeration material 39, is specially the macroporous netlike carrier, highly is 0.6m; The filler of module bottom is formed by 8 layers, highly is 1.2m.Each layer packed height is 0.15m, and wherein the bottom is permeable filtering layer 36, highly is 0.05m; The top is a multimedium filter material layer 37, highly is 0.1m.The multimedium filter material layer 37 at top is that multimedium filtrate and permeable filtrate are alternately filled in each layer, and wherein, the filling width of multimedium filtrate is 0.3m, and the filling width of permeable filtrate is 0.1m.Above-mentioned fill method is " product " font fill method, as shown in Figure 3.In this example, the weighting material of multimedium filter material layer 37 is the multimedium filtrate, based on the function haydite of synthetic, is aided with the modified zeolite of particle diameter greater than 2mm, and function haydite and particle diameter are 1: 1 greater than the filling ratio volume ratio of the modified zeolite of 2mm.The weighting material of permeable filtering layer 36 is permeable filtrate, is that gravel and the particle diameter of 10mm formed greater than the modified zeolite of 2mm by median size, and median size is 10mm gravel and particle diameter greater than the filling ratio of the modified zeolite of 2mm is volume ratio 4: 1.
The ecological diafiltration module outline of multimedium main part is a cylindricality, and the filler in the filter tank is pressed " product " font filling multilayer until the filter tank upper surface.The multimedium filter material layer is aided with modified zeolite based on the function haydite of synthetic; Permeable filtering layer 36 is made up of gravel and modified zeolite.The water distribution system that the filtrate topsheet surface is made up of six roots of sensation water distributor 20, and place aeration material 39 inside with abundant aeration with prevent that the posticum on the water distributor 20 from stopping up the water distributor 20.Water distributor 20 links to each other with hydraulic pipe 19, sewage enters multimedium filtering layer 37 through hydraulic pipe 19, water distributor 20 by the filter tank filling surface is evenly distributed in the filler top layer, sewage is " product " font filter material layer by being made up of multimedium filter material layer 37 and permeable filtering layer 36 step by step, part can be infiltrated the water purification medium, can't infiltrate the current of water purification medium and see through the current of water purification medium, import one deck water purification medium down by water stream channel again, until reaching last step water purification medium.The bottom of filter material layer is the supporting structure that woven wire constitutes, and sewage is gone into water leg 35 through filtering layer is laggard, enters outside the pond by multimedium ecological filter treatment unit water outlet 21 again.
The main raw of filter material layer: lime-ash, gravel, zeolite, multimedium filtrate, macroporous netlike carrier.
(1) lime-ash: the coal ash slag, raw material is easy to get, and economy has vesicular structure, and nitrogen phosphorus is had certain adsorptive power, and its micropore can form capillary water simultaneously, makes water can rise to certain altitude;
(2) gravel, common gravel, raw material is easy to get, and economy mainly is the medium that biofilm is provided for microorganism, the effect of fixation of microbe;
(3) zeolite, zeolite has a variety of, raw material is easy to get, our usefulness be clinoptilolite, zeolite all has certain adsorptive power to phosphorus and ammonia nitrogen, can play the effect of deep phosphorous removal denitrogenation;
(4) multimedium filtrate is artificial synthetic function haydite, and function is efficient, has the effect of adsorption of nitrogen phosphorus, fixation of microbe and electrolyzing organic;
(5) macroporous netlike carrier is the urethane microbe immobilizing material, and porosity is big, the biological load height, and it act as the microorganism of immobilization efficient degradation organism and denitrogenation.
Rural sewage water treatment method of the present invention specifically comprises the steps:
Steps A by submersible sewage pump 1 with sewage transport to 1 pond 13, and via No. 1 pond 13 anaerobic oxidation pond excrement with regulate water conditioning;
The sewage that step B handled through No. 1 pond 13 enters 14 anaerobic oxidation ponds, No. 2 ponds by baffling pipe 24 and carries out anaerobic treatment, and wherein the effect of baffling pipe 24 is the paths that prolong sewage, increases the residence time of sewage;
The sewage that step C handled through No. 2 ponds 14 enters 15 anaerobic oxidation ponds, No. 3 ponds by baffling pipe 24 bafflings, in No. 3 ponds 15, under the effect of three-phase sparger 26 water, mud, gas are separated, water enters pond 16 No. 4 through baffling pipe 24, and sludge settling is at the bottom of the pond, and gas is discharged by venting port;
The sewage that step D handled through No. 3 ponds 15 enters 16 aerobic oxidation ponds, No. 4 ponds by baffling pipe 24 bafflings, aeration is carried out in No. 4 ponds 16 do aerobic oxidation and handle;
Step e sewage enters 17 aerobic oxidation ponds, No. 5 ponds by baffling pipe 24 bafflings, repeats above-mentioned steps D;
Enter ponds 18 precipitations No. 6 behind the sewage that step F was handled through No. 5 ponds 17, further precipitate the suspended substance of sewage, the final treating water that satisfies standard-required of discharging.
Aforesaid method is to integrate functions such as septic tank, anaerobic treatment, aerobic treatment, biological floating bed, precipitation, makes the organism in the sewage change into harmless material under the anaerobic and aerobic action of microorganisms.
Described rural sewage water treatment method, also comprise operational process by the ecological filtration module of multimedium, concrete is sewage is through the water distributor 20 of filter tank filling surface " product " font filter material layer by being made up of multimedium filter material layer and permeable filtering layer 36 step by step, enters discharge behind the water leg 35 of bottom, filter tank.When sewage was flowed through the multimedium ecological filter through multi-functional baffling processing module, its surface is tackled and be adsorbed on to pollutent by the multimedium filtrate, and microorganism utilizes organism to carry out growth and breeding, and attached to forming microbial film on the filtrate.Through after a while, the microbial film maturation is perched organism that the microorganism on microbial film shows to flow through as nutrition, to the organism in the sewage adsorb, decomposing oxidation, thereby the sewage that flows through ecological filter is purified.
Described rural sewage water treatment method, wherein, the aeration among described step D and the E adopts the intermittent aeration mode.Employing helps the intermittent aeration mode of denitrification denitrogenation, and aeration rate only is 1/3～1/5 of ordinary activated sludge and fixed-bed reactor.
Therefore, a kind of rural sewage water treatment method of the present invention and isolated plant thereof, be physical treatment technology and biochemical processings such as anaerobic oxidation, aerobic oxidation such as integrated use precipitation, filtration, organism in the sewage is degraded, inorganic salt are fixed, nutrition such as nitrogen phosphorus are minimized, and have the big and good advantage of processing back water quality of hydraulic load, are particularly suitable for the national conditions needs of China.
Above-described embodiment, the present invention embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solution of the present invention scope and replacing all should be included in protection scope of the present invention.
Claims (10)
1. rural sewage disposal isolated plant, comprise submersible sewage pump and coupled multi-functional baffling processing module, it is characterized in that: described multi-functional baffling processing module comprises six ponds in turn according to the drainage flow direction, be respectively three anaerobic unit, two aerobic units and a precipitation unit, adjacent processing unit connects by duct segments; Wherein No. 1 pond, No. 2 ponds and No. 3 ponds are that anaerobic unit and each unit are equipped with venting hole, and submersible sewage pump connects No. 1 pond, is provided with the three-phase sparger in No. 3 ponds; No. 4 ponds and No. 5 ponds are to be equipped with unsettled upper and lower woven wire in aerobic unit and the pond, upper and lower woven wire forms and fills the filler that is used for aerobic reaction in compartment, the compartment, the woven wire of lower floor is provided with qi-emitting hole, and qi-emitting hole links to each other with aerator by gas distribution pipe; No. 6 ponds are precipitation unit.
2. rural sewage disposal isolated plant according to claim 1, it is characterized in that: also comprise the ecological filtration module of the multimedium that is connected with described multi-functional baffling processing module water outlet by pipeline, the ecological filtration module of multimedium is the filter tank of containing the multimedium filter material layer.
3. rural sewage disposal isolated plant according to claim 2 is characterized in that: the top of the ecological filtration module of described multimedium is the aeration material, is the macroporous netlike carrier; The filler of bottom is formed by 4 layers at least; The bottom of each layer filler is permeable filtering layer, and the top is the multimedium filter material layer; The multimedium filter material layer is that multimedium filtrate and permeable filtrate are alternately filled, and forms " product " font and fills; The multimedium filter material layer is main and auxiliary with modified zeolite with the function haydite of synthetic, and permeable filtering layer is made up of gravel and modified zeolite.
4. rural sewage disposal isolated plant according to claim 1 is characterized in that: the pipeline that connects between the described unit is the baffling pipe.
5. rural sewage disposal isolated plant according to claim 1 is characterized in that: described unit is provided with mudhole near the place, bottom.
6. rural sewage disposal isolated plant according to claim 1 is characterized in that: described filler is the urethane filler of coarse pored.
7. according to the described rural sewage disposal isolated plant of the arbitrary claim of claim 1-6, it is characterized in that: the baffling pipe that stretches in described No. 6 ponds is a water spraying pipe, and the port of water spraying pipe is horn-like.
8. the rural sewage water treatment method of rural sewage disposal isolated plant according to claim 1 comprises the steps:
Steps A is sewage transport to 1 pond, and via No. 1 Chi Yanyangyanghuachiization excrement with regulate water conditioning;
The sewage that step B handled through No. 1 pond enters No. 2 Chi Yanyangyanghuachi by pipeline and carries out anaerobic treatment;
The sewage that step C handled through No. 2 ponds enters Chi Yanyangyanghuachi No. 3 by pipeline, under the effect of three-phase sparger water, mud, gas is separated in No. 3 ponds, and water enters the pond No. 4 through piping, and sludge settling is at the bottom of the pond, and gas is discharged by venting port;
The sewage that step D handled through No. 3 ponds enters Chi Youyangyanghuachi No. 4 by pipeline, aeration is carried out in No. 4 ponds do aerobic oxidation and handle;
Step e sewage enters Chi Youyangyanghuachi No. 5 by pipeline, repeats above-mentioned steps D;
Enter the ponds precipitation No. 6 behind the sewage that step F was handled through No. 5 ponds, further precipitate the suspended substance of sewage, the final treating water that satisfies standard-required of discharging.
9. described according to Claim 8 rural sewage water treatment method, it is characterized in that: also comprise operational process by the ecological filtration module of multimedium, concrete is sewage is through the water distributor of filter tank filling surface " product " font filter material layer by being made up of multimedium filter material layer and permeable filtering layer step by step, discharges after entering the water leg bottom the filter tank.
10. it is characterized in that according to Claim 8 or 9 described rural sewage water treatment methods: the aeration among described step D and the E adopts the intermittent aeration mode.
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| CN2009100828529A CN101525204B (en) | 2009-04-23 | 2009-04-23 | Method for treating village sewage and specific device thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120669A (en) * | 2009-12-22 | 2011-07-13 | 隆润新技术发展有限公司 | Application of high solution bacteria efficient microbiological technology and anaerobic baffled reactor-oxic baffled reactor technology in coking wastewater treatment |
| CN102120670A (en) * | 2009-12-22 | 2011-07-13 | 隆润新技术发展有限公司 | H.S.B (High Solution Bacteria) high-efficiency microorganism technology and application of ABR+OBR (Anaerobic Baffled Reactor+Oxic Baffled Reactor) process in excrement treatment |
| CN102358659A (en) * | 2011-07-28 | 2012-02-22 | 农业部规划设计研究院 | Rural domestic sewage composite filter tank treatment system and technology therefor |
| CN103588355A (en) * | 2013-10-15 | 2014-02-19 | 常州思宇环保材料科技有限公司 | Device for removing high-concentration ammonia nitrogen in waste water |
| CN104150579A (en) * | 2014-01-10 | 2014-11-19 | 广东金明环保科技有限公司 | Biological treatment device used on water treatment integrated equipment |
| CN104147820A (en) * | 2014-01-10 | 2014-11-19 | 广东金明环保科技有限公司 | Filtering device on water treatment integrated equipment |
| CN105502656A (en) * | 2015-11-30 | 2016-04-20 | 北京大学 | Two-section type reinforced denitrification multistage soil percolation system |
| CN106145317A (en) * | 2016-08-24 | 2016-11-23 | 中国科学院、水利部成都山地灾害与环境研究所 | A kind of Multifunction oxidation pond for rural domestic sewage treatment |
| CN112723556A (en) * | 2020-12-02 | 2021-04-30 | 湖北汇农生物科技有限公司 | Method for building microorganism sewage treatment device |
| CN115286109A (en) * | 2022-09-30 | 2022-11-04 | 四川省生态环境科学研究院 | High and cold rural sewage treatment device and treatment method |
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- 2009-04-23 CN CN2009100828529A patent/CN101525204B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102120669A (en) * | 2009-12-22 | 2011-07-13 | 隆润新技术发展有限公司 | Application of high solution bacteria efficient microbiological technology and anaerobic baffled reactor-oxic baffled reactor technology in coking wastewater treatment |
| CN102120670A (en) * | 2009-12-22 | 2011-07-13 | 隆润新技术发展有限公司 | H.S.B (High Solution Bacteria) high-efficiency microorganism technology and application of ABR+OBR (Anaerobic Baffled Reactor+Oxic Baffled Reactor) process in excrement treatment |
| CN102358659A (en) * | 2011-07-28 | 2012-02-22 | 农业部规划设计研究院 | Rural domestic sewage composite filter tank treatment system and technology therefor |
| CN103588355A (en) * | 2013-10-15 | 2014-02-19 | 常州思宇环保材料科技有限公司 | Device for removing high-concentration ammonia nitrogen in waste water |
| CN104150579A (en) * | 2014-01-10 | 2014-11-19 | 广东金明环保科技有限公司 | Biological treatment device used on water treatment integrated equipment |
| CN104147820A (en) * | 2014-01-10 | 2014-11-19 | 广东金明环保科技有限公司 | Filtering device on water treatment integrated equipment |
| CN105502656A (en) * | 2015-11-30 | 2016-04-20 | 北京大学 | Two-section type reinforced denitrification multistage soil percolation system |
| CN105502656B (en) * | 2015-11-30 | 2019-04-02 | 北京大学 | A kind of two-part strengthened denitrification multilevel soil filtration system |
| CN106145317A (en) * | 2016-08-24 | 2016-11-23 | 中国科学院、水利部成都山地灾害与环境研究所 | A kind of Multifunction oxidation pond for rural domestic sewage treatment |
| CN112723556A (en) * | 2020-12-02 | 2021-04-30 | 湖北汇农生物科技有限公司 | Method for building microorganism sewage treatment device |
| CN115286109A (en) * | 2022-09-30 | 2022-11-04 | 四川省生态环境科学研究院 | High and cold rural sewage treatment device and treatment method |
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