CN106430860B

CN106430860B - A kind of rural domestic sewage treatment process

Info

Publication number: CN106430860B
Application number: CN201611103519.8A
Authority: CN
Inventors: 吴伟明; 张晓良; 陈学群; 邱根贤; 朱琳; 谈海龙
Original assignee: Haining City Zhen Zhen Lu Wan Shares Of Economic Cooperatives
Current assignee: Jiangsu Yuzhi Basin Management Technology Research Institute Co.,Ltd.
Priority date: 2016-12-05
Filing date: 2016-12-05
Publication date: 2019-04-05
Anticipated expiration: 2036-12-05
Also published as: CN106430860A

Abstract

The present invention provides a kind of rural domestic sewage treatment process, belong to technical field of sewage.It is solved in existing sewage disposal process, because of the technical problems such as not big to the processing difficulty caused by sewage classification processing, treatment effect is bad.This rural domestic sewage treatment process, which is characterized in that the treatment process includes that sanitary sewage is pre-processed and post-processed；Pre-treatment step includes: 1, is filtered by filter device to sanitary sewage；2, sour water, alkaline sewage and neutral sewage are shunted and is saved by part flow arrangement；Post-processing step includes: a, neutralizes to sour water and alkaline sewage；B, neutral sewage aeration tank is drained to handle；C, sewage is drained to denitrification pond and carries out denitrification processing；D, sewage artificial swamp is drained to handle；E, sewage is drained to clarifier-tank and carries out purified treatment.The present invention has many advantages, such as that good sewage processing effect and environmental pollution are small.

Description

A kind of rural domestic sewage treatment process

Technical field

The invention belongs to technology for treating domestic sewage in rural area fields, are related to a kind of rural domestic sewage treatment process.

Background technique

Since reform and opening-up, the industrialized level in China is continuously improved, we are enjoying the same of GDP rapid growth achievement When, environmental pollution hinders sustainable economic development but to become very important problem.In recent ten years, Ecological Environment problem The problem of being paid high attention to as everybody.What Ecological Environment was subjected to threatens not only from the development of town industrial enterprise, and Also there is weight with the production in rural area itself, cultivation livestock and poultry, rural domestic sewage treatment mode, the environmental consciousness of rural area relative subject etc. Important Relations.Rural areas in our country and population occupy very big specific gravity in national area and population, solve domestic sewage in rural areas, improve Ecological Environment, be undoubtedly conducive to the harmony of the living and working in peace and contentment of rural resident, the sustainable development of rural economy and country with Stablize.Domestic sewage in rural areas problem is not only related to the health of peasant, and is related to improvement and the rural area of Ecological Environment The harmony of society.Water environment protection is the emphasis of current efforts at environmental protection, and rural domestic sewage treatment is the one of water prevention and cure of pollution A important component.With the development of China's Rural Social Economy, the raising of life in the countryside level and the growth of population, life The discharge amount of wastewater pollutants directly affects Water quality.Rural residence dispersion, economic condition gap is larger, sewage network and dirt Water processing establishment construction relatively lags behind, and the water quality and quantity of domestic sewage in rural areas is also different, and the construction of sewage treatment project needs Different sewage treatment sides is chosen according to the conditions adaptation to local conditions such as local environment and natural conditions status, ability to shoulder economically Formula mainly includes centralized processing and decentralized processing after sewage collecting after sewage collecting networks.

The sanitary sewage in rural area includes kitchen waste water, toilet sewage, shower sewage and wash water etc., currently, usually It is that these sanitary sewages concentration is discharged into treatment tank to handle, mainly includes nitrification processing (Air Exposure), anti-nitre Change processing and artificial wetland treatment etc., these different sanitary sewage concentrations is discharged into treatment tank, so that various sewage It concentrates in together, increases the complexity and inefficiencies of sewage treatment.For example, what is used described in people washes one's hair in bathing experience For bath lotion in acidity, generated shower sewage is sour water, and people's laundry clothes used in washing clothes are generated in alkalinity Alkaline sewage, for people durings kitchen wash vegetables etc., the sewage of generation is the extremely low neutral clear water of dustiness, including people are washing one's hair Bath and laundry processes in using clear water rinse when, can also generate the extremely low neutral clear water of dustiness, if by these sour waters, Alkaline sewage and dustiness it is extremely low neutral clear water centralized collection discharge if, adulterate sewage, improve answering for sewage treatment Polygamy and difficulty also reduce the efficiency of sewage treatment.Meanwhile nitrification processing, denitrification processing and artificial wetland treatment are also deposited Not perfect in certain not perfect property, such as nitrification processing equipment, artificial wetland treatment causes secondary soil and atmosphere pollution etc..

Summary of the invention

The purpose of the present invention is there is the above problem in view of the prior art, a kind of rural domestic sewage treatment work is proposed Skill improves the treatment effect and treatment effeciency of domestic sewage in rural areas.

Object of the invention can be realized by the following technical scheme: a kind of rural domestic sewage treatment process, feature It is, the treatment process includes that sanitary sewage is pre-processed and post-processed；

Pre-treatment step includes: 1, is filtered by filter device to sanitary sewage, the residue in filter sewage；2, lead to It crosses part flow arrangement and sour water, alkaline sewage and neutral sewage is shunted and saved；

The sour water and alkaline sewage that post-processing step includes: a, is distributed part flow arrangement by acid-base neutralization device It is neutralized, forms neutral sewage；B, neutral sewage is drained to aeration tank and carries out aerobic microbiological decomposition sewage treatment；C, will Treated in step b, and sewage is drained to the progress denitrification processing of denitrification pond；D, by treated in step c, sewage is drained to Artificial swamp is handled；E, by treated in step d, sewage is drained to clarifier-tank progress purified treatment.

Filter device in above-mentioned pre-treatment step 1 includes the by-pass filtration pipe and secondary filtration pipe being vertically arranged, second level Screen pipe is located at the bottom of by-pass filtration pipe and connect with by-pass filtration pipe, and the top of the by-pass filtration pipe passes through pipeline and dirt Water sewage draining exit is connected to, and the tapered residue for throwing residue away is provided in the by-pass filtration pipe and disperses wheel, residue drives The vertex of a cone for dissipating wheel is set up, and the bottom that the residue disperses wheel offers tapered hollow open to cone top part, is made described Residue disperses the circular conical surface of wheel in thin wall shape, and the circular conical surface that the residue disperses wheel circumferentially offers several lautertuns, described Lautertuns is opened up along the generatrix direction that residue disperses wheel circular conical surface, and penetrates through the inside and outside wall of circular conical surface, and the residue disperses wheel Bottom is fixed with rotation axis, and the driving mechanism one that the rotation axis can be such that it rotates with one is connect；The by-pass filtration pipe Outer wall, which is provided with, disperses the level-one residue collecting box for taking turns the residue thrown away from residue for collecting, in the level-one residue collecting box With inner cavity, the level-one residue collecting box is annular in shape, including left half collecting box and right half collecting box, left half collecting box and The detachable outer wall for being fixed on the by-pass filtration pipe, the tube wall of the by-pass filtration pipe open up useful right half collecting box respectively In the first residue port that level-one residue collects box cavity will be entered from dispersing the residue thrown away of wheel, the by-pass filtration pipe Bottom sidewall offers several return ports, and several return ports are connected to the inner cavity of the level-one residue collecting box；Driving machine Structure makes residue disperse wheel rotation, residue is got rid of into level-one residue collecting box, sewage passes through downward from the lautertuns that residue disperses wheel Stream, a part of sewage are got rid of into level-one residue collecting box, are back to one by several return ports at by-pass filtration bottom of the tube In grade screen pipe.In this way, residue is collected into level-one residue collecting box, prevent residue from flowing into together with sewage, causes residual Slag rots in sewage, causes secondary pollution, while preventing residue from blocking sewage pipe.Level-one residue collecting box includes Zuo Banshou Header and right half collecting box, and detachable fixation, facilitate taking-up residue to be purged processing.

The section of the secondary filtration pipe is rectangle, and residue is horizontally arranged in the pipe of secondary filtration pipe and drives away roller, The residue is driven away roller and is fixed in such a way that axial restraint circumferentially rotates, and the outer circumferential walls that the residue drives away roller are arranged There is cleaning cylinder, the periphery of the cleaning cylinder is evenly distributed with bristle, and the inner wall of the bristle and secondary filtration pipe is inconsistent, The driving mechanism two that the residue drives away roller and it can be made to rotate with one is connect；The outer wall of the secondary filtration pipe is fixed with second level Residue collecting box offers the second residue port that connection second level residue collects box cavity on the side wall of the secondary filtration pipe, Be provided with residue scraper plate in the second level residue collecting box, the top of residue scraper plate stretch out the second residue port with it is described The bristle for cleaning drum outer wall contradicts, and the bottom end of residue scraper plate passes through the interior bottom of chamber of a pre-tightening mechanism and the second level residue collecting box Portion is fixed, and the pre-tightening mechanism includes telescopic rod and compressed spring, and the top of telescopic rod and the bottom end of the residue scraper plate are solid Fixed, the bottom end of telescopic rod and the intracavity bottom of the second level residue collecting box are fixed, and the compressed spring is set in described stretch On contracting bar, the bottom end of compressed spring and the intracavity bottom of second level residue collecting box are against the top of compressed spring and the residue The bottom end of scraper plate is against the side wall of the second level residue collecting box is additionally provided with side door, the bottom end setting of the secondary filtration pipe There is the first outfall.Driving mechanism two make residue drive away roller rotation, cleaning cylinder follow rotate make clean cylinder bristle with The inner wall of secondary filtration pipe contacts, and the residue not filtered out in by-pass filtration pipe is fallen into secondary filtration pipe, such as hair etc. Fine impurities, these fall into the residue in secondary filtration pipe and are stopped by the bristle of cleaning cylinder, and under the rotation of cleaning cylinder, these are residual Slag is scraped off by residue scraper plate, is entered in second level residue collecting box along residue scraper plate, is passed through the side door of second level residue collecting box The residue collected is removed, the sewage in secondary filtration pipe is flowed into from the gap between bristle toward flowing down from by-pass filtration pipe, flows The bottom end of secondary filtration pipe out.The effect of pre-tightening mechanism is to contact residue scraper plate preferably with the bristle for cleaning cylinder, is improved residual The efficiency that slag is detached from from bristle.

Part flow arrangement in above-mentioned pre-treatment step 2 includes PH detection bucket, and the inside that PH detects bucket has test chamber, PH inspection The second sewage is offered at the top of survey bucket and is discharged into mouth, and second sewage is discharged into mouth and is arranged by pipeline and first sewage The bottom of outlet, PH detection bucket offers communication with detection chamber and external acid solution fluid hole, lye fluid hole and neutral solution The bottom of fluid hole, the acid solution fluid hole, lye fluid hole and neutral solution fluid hole is disposed with acid solution solenoid valve, lye Solenoid valve and neutral liquid electromagnetic valve, the acid solution solenoid valve are connected to by pipeline with an acid solution deposit box, the lye solenoid valve It is connected to by pipeline with a lye deposit box, the neutrality liquid electromagnetic valve is connected to by pipeline with a neutral solution deposit box, described Neutral solution deposit box is connected to by pipeline with extraneous treatment tank, is provided with electronics PH in the test chamber of the PH detection bucket Meter one, the electronics PH meter one, acid solution solenoid valve, lye solenoid valve and neutral liquid electromagnetic valve pass through route and a controller Connection.When acid sanitary sewage enters in PH detection bucket, electronics PH meter detects acid signal, and signal is passed to control Device, controller deliver a signal to acid solution solenoid valve, and acid solution solenoid valve is opened, sour water is discharged into acid solution deposit box, when When alkaline sanitary sewage is entered in PH detection bucket, electronics PH meter detects alkaline signal, and signal is passed to controller, controls Device delivers a signal to lye solenoid valve, and lye solenoid valve is opened, alkaline sewage is discharged into lye deposit box, when neutral sewage When entering in PH detection bucket, electronics PH meter detects neutral signal, signal is passed to controller, controller delivers a signal to Neutral liquid electromagnetic valve, neutral liquid electromagnetic valve are opened, will be in neutral sewage discharge to neutral solution deposit box.It, will by part flow arrangement Sour water, alkaline sewage and neutral sewage separation savings, facilitate sewage targetedly to handle.

Acid-base neutralization device in above-mentioned post-processing step a includes neutralization reaction bucket, has in neutralization reaction bucket and neutralizes instead Chamber is answered, the side of neutralization reaction bucket offers acid solution input hole one, and the other side offers lye input hole, the acid solution input Hole is connect by pipeline with an acid control solenoid valve, and the other end of acid control solenoid valve is connected to by pipeline with the acid solution deposit box, The lye input hole is connect by pipeline with an alkali control solenoid valve, and the other end of alkali control solenoid valve passes through pipeline and the lye Deposit box connection, the bottom of the neutralization reaction chamber offer fluid hole, and fluid hole has liquid outlet electromagnetic valve by piping connection, institute It states neutralization reaction chamber and is provided with electronics PH meter two at fluid hole, the neutralization reaction is intracavitary to be provided with agitator arm, stirring The driving mechanism three that impeller can be such that it rotates with one connect, and electronics PH meter two, acid control solenoid valve, alkali control solenoid valve and liquid out Solenoid valve passes through route and connect with the controller.By the sour water and alkalinity in acid solution deposit box and lye deposit box It is neutralized in sewage discharge to neutralization reaction bucket, makes neutral sewage, when the electronics being arranged in neutralization reaction container When the sewage that PH meter two detects is in acidity, signal is passed into controller, controller control acid control solenoid valve is closed, and is controlled Alkali control solenoid valve is opened, and the alkaline sewage in lye deposit box is added in neutralization reaction bucket, until two detection of electronics PH meter Neutralization reaction is in neutrality, and controller controls liquid outlet electromagnetic valve and opens, the neutral sewage discharge that neutralization reaction is generated to the external world Signal is passed to control when the sewage that the electronics PH meter two being arranged in neutralization reaction container detects is in alkalinity by treatment tank Device processed, controller control alkali control solenoid valve and close, and control acid control solenoid valve and open, and the sour water in acid solution deposit box is mended It is charged in neutralization reaction bucket, until the two detection neutralization reaction of electronics PH meter is in neutrality, controller controls liquid outlet electromagnetic valve and opens, will The neutral sewage discharge that neutralization reaction generates is to extraneous treatment tank.

Aeration tank in above-mentioned post-processing step b includes pond body, and there is the pond body third sewage to be discharged into mouth and third Outfall, the third sewage are discharged into mouth and are connect by pipeline with the liquid outlet electromagnetic valve, the neutral solution savings Case is discharged into mouth with the third sewage by pipeline and is connected to, and aeration generating device, aeration diffusion dress are provided in the pond body It sets, bubble elimination device and sludge recyclable device, the aeration generating device includes the rotation paddle wheel that bottom of pond is arranged in, described Rotation paddle wheel include blade and wheel hub, there is inner cavity, the top surface of blade offers several with blade inner cavity inside the blade The venthole being connected, the blade are fixed with wheel hub, and the hub interior has inlet chamber, the inside sky of inlet chamber and blade Chamber is connected, and the bottom of the wheel hub has the air inlet of connection inlet chamber, and the bottom of the air inlet is provided with appendix, defeated The top of tracheae be in the air inlet and with the air inlet clearance fit, the bottom end of appendix is connected with a corner connection Head, angle joint are connect by pipeline with an air pump, and impeller shaft, the top of impeller shaft and institute are provided in the appendix It states wheel hub to fix, the bottom end of impeller shaft is pierced by the angle joint, and the output axis connection with a motor；Motor makes to revolve blade Wheel rotation, air pump are inputted air by pipeline in the cavity of blade, and air is emerged from the venthole of blade upwards again, blade In the course of rotation, the sewage in aeration tank is stirred, make the air emerged from blade venthole fully with dirt Water contact, air emerges from blade venthole, have the advantages that the bubble of generation mostly with it is intensive, improve the dissolved oxygen efficiency of sewage, The activity for promoting aerobic bacteria in activated sludge in aeration tank, improves the treatment effect of sewage.

The aeration disperser includes drainage hood, and the drainage hood is in inverted funnel shape, the upper end of the drainage hood For closed end, the upper end side wall of drainage hood offers several ports, and the lower end of drainage hood is open end, and the drainage hood setting exists The top of the rotation paddle wheel, is in the rotation paddle wheel in the opening of the drainage hood lower end, the drainage hood lower end is opened It is additionally provided in mouthful for by the folliculus net of fining air bubbles, the folliculus net to be located at the top of the blade, the drainage hood Upper end be additionally provided with it is several persist room in olive-shaped bubble, the bubble persists room and is arranged along its axis horizontal, and bubble is temporary Staying the two side ends of room has opening, and the opening that bubble persists one side of room is connected with the port of drainage hood upper end side wall； Spiral drainage tube is vertically arranged in the drainage hood, the bottom end of drainage tube is connected with drainage point cover, the top of drainage tube End protrudes into the bubble and persists interior；By be aerated disperser, make be aerated generating device generate bubble preferably with dirt Water contact, the bubble emerged from rotation paddle blade, which is raised above, to be entered in drainage hood, passes through folliculus net, biggish bubble is divided At lesser bubble, so that the quantity of bubble be made to increase, the contact area of bubble and sewage is improved, across the bubble one of folliculus net Part enters directly into bubble and persists room, and another part bubble across folliculus net enters in drainage tube from drainage point cover, draws In the shape of a spiral, bubble rises flow tube in drainage tube inside spin, increases the path that bubble rises, when increasing contact of the bubble with sewage Between, to improve the dissolved oxygen effect of sewage, to enhance the activity of aerobic bacteria in activated sludge, improve sewage treating efficiency, gas Bubble is emerged from the top of drainage tube again, is entered bubble and is persisted interior, and the bubble room of persisting makes to enter in laterally disposed olive-shaped Indoor air is persisted to bubble persist interior in bubble and make short stay, improve the dissolved oxygen effect of air and sewage, work as drainage The bubble in bubble and drainage hood in pipe continues into bubble and persists interior, and bubble, which persists indoor air, to be squeezed Out, play the role of lasting replacement bubble and persist indoor fresh air.

The bubble elimination device includes several sparge pipes for being horizontally installed on aeration tank face, and the sparge pipe is presented One end of the wave-like of lower fluctuating, the sparge pipe is closed end, and the other end is input terminal, the bottom direction of the sparge pipe Bottom of pond offers several hole for water sprayings, and several hole for water sprayings are uniformly distributed along the length direction of sparge pipe, several sparge pipes Input terminal be connected to a water delivery general pipeline, water delivery general pipeline is connect with a booster water pump；The closed end and one of several sparge pipes Connecting rod is fixedly connected, and is uniformly distributed several sparge pipes along the length direction of connecting rod, the water delivery general pipeline and connection Bar is provided with several floater shots along its length；Sewage in aeration tank can generate a large amount of foam drift in aeration process The water face of sewage is floated on, obstructs the dissolved oxygen in cesspool face and outside air, it is therefore desirable to eliminate to foam, traditional side Method is that froth killer is added in sewage to carry out defoaming treatment, increases the cost of sewage treatment, froth killer can also be made At certain secondary pollution, by bubble elimination device, the removal of foam that will be generated in the sewage of aeration tank, principle is to utilize spray The water that water pipe sprays breaks up foam, and sparge pipe is in the waveform of dipping and heaving, so that being located at the hole for water spraying one of water spray bottom of the tube It is partially in the top in pond face, a part is in the lower section in pond face, and the water that the hole for water spraying above the face of pond sprays will be located at pond The foam on face surface is broken up, and the water that hole for water spraying below the face of pond sprays, which will be located at below the face of pond, will rise to pond face Foam is broken up, and improves the effect and efficiency of the removal of foam, and the effect of the floater shot of setting is that sparge pipe is made to swim in Chi Mianshang, is led to The quantity for crossing setting floater shot is in a part of sparge pipe above the face of pond, and a part is below the face of pond.

The sludge recyclable device includes the sludge collection box that aeration tank bottom is arranged in, and the side of sludge collection box is opened If the sludge import is fixed with sludge into mouth, and the sludge is funnel-shaped into mouth, including import equipped with dewatered sludge import End and outlet end, the diameter of input end are greater than the diameter of outlet end, and the sludge connects into the input end of mouth and the sludge import Lead to and fix, the outlet end of the sludge into mouth is protruded into the cabinet of the sludge collection box, the top of the sludge collection box Water outlet is offered, water outlet is connect by pipeline with a suction pump, is laterally set in the sludge collection box close to water outlet It is equipped with sludge filtration net.Aeration tank during Air Exposure, aerobic bacteria in the activated sludge of aeration tank with it is organic in sewage During object reacts, new activated sludge can be generated, when activated sludge is excessive, aeration reaction is will affect, influences at sewage The effect of reason needs to handle excessive activated sludge.By sludge collection box, excessive sludge is collected, is led to It crosses suction pump to extract the sewage in sludge collection box, the sewage outside sludge collection box is made to enter dirt into mouth by sludge In mud collecting box, the activated sludge that is suspended in sewage is with entering in sludge collection box, under the blocking of sludge filtration net, It is blocked in sludge collection box, sewage enters suction pump from water outlet by sludge filtration net and is discharged in sludge collection box, no It recycles and draws water disconnectedly, sludge is collected into sludge collection box.Sludge is funnel-shaped into mouth, holds that the activated sludge in water relatively It changes places and enters in sludge collection box, while the activated sludge in sludge collection box being made to be not easy to run out of sludge collection box.

Above-mentioned aeration generating device further includes the digging mechanism for keeping aeration tank pool bottom sludge loose, the excavator Structure includes horizontally disposed digging wheel, and the digging wheel includes wheel plate annular in shape, and the circumferential bottom of wheel plate offers tooth, The tooth is contacted with aeration tank bottom, and the part that the bottom end of the digging wheel and the impeller shaft is pierced by angle joint connects It connects.By digging mechanism, the activated sludge for being deposited on bottom of pond is carried out loose, makes it preferably in suspension pool water within, improve dirty The effect of water process, the impeller shaft of driving rotation paddle wheel rotation in the course of rotation, drive digging wheel rotation together, utilize The tooth that digging wheel wheel plate opens up carries out the sludge of deposition loose.

Artificial swamp in above-mentioned post-processing step d includes self-restraint pond, and the self-restraint pond includes the pond being built by concrete Body, the pond body include that the 4th sewage is discharged into mouth and the 4th outfall, the 4th sewage be discharged into mouth by pipeline with it is described The connection of third outfall, the intracorporal upper layer kind in pond is implanted with emergent aquactic plant, and it is heavy that the intracorporal lower layer's kind in pond is implanted with Water plant, the emergent aquactic plant are planted on a raft, and the raft includes successively folding the Buddhist nun set from the bottom up Imperial layer, sand stone layer and dirt bed, the nylon layer include a pair of web plate one arranged in parallel, are pressed between the web plate one It is laminated with nylon wire, the sand stone layer includes a pair of web plate two arranged in parallel, it is filled with sandstone between the web plate two, The dirt bed includes a pair of web plate three arranged in parallel, and soil, the very water are filled between the web plate three On the dirt bed, the periphery of the web plate one, web plate two and web plate three is fixed on a retainer and leads to planting It crosses retainer to be layered on top of each other and fix, several flotation tanks is fixed on the retainer；The bottom of pond in the self-restraint pond, which is filled out, is covered with mud Soil is stamped web plate four on soil upper berth, and the submerged plant planting is in the soil of the self-restraint pond bottom of pond.Traditional Manual moist Ground is when wetland water level is too low, to be easy to cause the self-restraint to emergent aquactic plant directly by planting in the pond of hand digging Insufficient water causes plant drought dead, when wetland water level is excessively high, is easy to flood emergent aquactic plant, emergent aquactic plant is flooded extremely, together When, sewage will also result in certain pollution to the soil of wetland.The emergent aquactic plant of this artificial swamp is planted on raft, no It is influenced by water level height in wetland, by adjusting the quantity of flotation tank, raft is made to be in what emergent aquactic plant preferably grew On water level, floating platform includes the nylon layer successively stacked from lower to upper, sand stone layer and dirt bed, can make moisture preferably from Nylon layer penetrates into sand stone layer, is reinfiltrated into dirt bed, guarantees the water supply of plant growth, and has and prevent dirt bed soil erosion To the effect of bottom of pond, nylon layer is stacked together by nylon wire, prevents sandstone from falling into bottom of pond, while nylon wire has preferable anti-corrosion Property.The bottom of pond in the self-restraint pond, which is filled out, is covered with soil, and submerged plant planting is stamped in the soil of self-restraint pond bottom of pond on soil upper berth The effect of web plate four is that the soil erosion of bottom of pond is prevented during drainage flow.The pond body in self-restraint pond is built by concrete, Have the function of preventing sewage pollution soil.

Hemispherical air conduction cover is provided at the top of above-mentioned self-restraint pond, the bottom end of the air conduction cover is opening End, top is enclosed construction, and the bottom end of the air conduction cover covers the pond body in the self-restraint pond, the air conduction cover Two sides of the bottom offer blow vent, and gas vent is offered at the top of the air conduction cover, and the gas vent passes through pipeline and one The other end of aspiration pump connection, aspiration pump is connect by pipeline with an Odor control case, and the Odor control case includes cabinet, The side of cabinet offers air inlet, and is connect by pipeline with the aspiration pump, and the other side of cabinet offers gas outlet, Several air filtration layers are provided in the cabinet, the air filtration layer includes air filtration folder net, is clamped between the air filtration folder net Active carbon.Artificial swamp can generate certain foul smell during handling sewage, these foul smell can be dirty if not being pocessed Atmosphere is contaminated, the life of neighbouring resident is influenced, air conduction cover surrounds artificial swamp self-restraint pond, enters the foul smell generated and draws In stream cover, under the air-extraction function of foul smell pump, pumping is entered in Odor control case, and several be equipped with is provided in Odor control case The air filtration layer of active carbon adsorbs the foul smell in air, fresh air is discharged in atmosphere, and the layering of air filtration layer is arranged to several Layer, improves the effect of air filtration.Blow vent is offered in the two sides of the bottom of air conduction cover, the purpose is to make external fresh air It enters in air conduction cover, for needed for plant growth.

Clarifier-tank in above-mentioned post-processing step e includes the level-one pond body being distributed step by step in step from top to bottom, second level pond There is the 5th sewage to be discharged into mouth for body, three-level pond body and level Four pond body, the level-one pond body, and the level Four pond body has the 5th sewage Outlet, the level-one pond body offer the first draining hole, and the intracorporal water of low-level culture pool is arranged by the first draining hole to institute The second level pond body stated, the second level pond body offer the second draining hole, and the intracorporal water in second level pond passes through the second draining hole It arranges to the three-level pond body, the three-level pond body offers third draining hole, and the intracorporal water in three-level pond passes through third Draining hole is arranged to the level Four pond body；It is provided with gravel packing in first draining hole, is set in second draining hole It is equipped with sandstone filter layer, is provided with activated carbon adsorption layer in the third draining hole.The sewage after artificial wetland treatment will be passed through By clarifier-tank progress purified treatment, water to be clean is from top to bottom followed by level-one pond body, second level pond body, three on clarifier-tank Grade pond body and level Four pond body, are filtered step by step by gravel packing, sandstone filter layer and activated carbon adsorption layer, gravel packing tool There is biggish gap, filters biggish granule foreign, sandstone filter layer has lesser gap, filters lesser granule foreign, Activated carbon adsorption layer adsorbs the harmful substance in water.

Above-mentioned gravel packing includes several groups gravel folder net, and the gravel folder network folder holds gravel, if described Dry group gravel folder net cuts first draining hole against envelope side by side, and the sandstone filter layer includes several groups sandstone folder net, The sandstone folder network folder holds sandstone, and the several groups sandstone folder net cuts second draining hole, institute against envelope side by side The activated carbon adsorption layer stated includes several groups active carbon folder net, and the active carbon folder network folder holds active carbon, and described is several Group active carbon folder net cuts the third draining hole against envelope side by side.Gravel packing is divided into several groups, is cut side by side against envelope First draining hole, effect are when gravel packing is blocked by more particulate matter during the filtration process, by being grouped to mistake Filtering layer is replaced, and achievees the purpose that replace filter layer, sandstone filter layer and active carbon in the case where not influencing water filtering The purpose that adsorption layer is divided into several groups is identical as gravel packing.

Compared with prior art, the invention has the following advantages that

1. acid sanitary sewage, alkaline sanitary sewage and neutral sanitary sewage are shunted, prevent different lives dirty by the present invention Water mixing, and further polluted caused by filtering residue prevents residue from rotting, reduce the difficulty and complexity of sewage treatment.

2. the present invention, the aeration disperser being arranged in aeration tank, keep bubble sufficiently dirty with the activity that swims in sewage Mud contact, improves bubble residence time, improves the effect and efficiency of sewage treatment.

3. bubble elimination device of the invention, being arranged in aeration tank, is broken up the foam in sewage by the method for physics, Avoid using the chemicals such as froth killer eliminate foam and caused by secondary pollution, while also saving froth killer Use cost.

4. the present invention, the emergent aquactic plant of artificial swamp are planted on raft, are not influenced by water level height in wetland, By adjusting the quantity of flotation tank, it is in raft on the water level that emergent aquactic plant preferably grows.

5. the foul smell of the present invention, artificial swamp discharge are handled by Odor control case, pollution on the environment is reduced.

6. it is of the invention, gravel packing, sandstone filter layer and activated carbon adsorption layer are divided into several groups in clarifier-tank, cleaned Facilitate taking-up when filter layer and adsorption layer, has the advantages that easy to use.

Detailed description of the invention

Fig. 1 is the axis geodesic structure schematic diagram of filter device of the present invention.

Fig. 2 is the schematic cross-sectional view of filter device of the present invention.

Fig. 3 is the structural schematic diagram of part flow arrangement and acid-base neutralization device of the present invention.

Fig. 4 is that generating device, aeration disperser, bubble elimination device and sludge recycling dress are aerated in aeration tank of the present invention The structural schematic diagram set.

Fig. 5 is the axis geodesic structure schematic diagram of bubble elimination device of the present invention.

Fig. 6 is the structural schematic diagram of artificial swamp of the present invention.

Fig. 7 is the structural schematic diagram of raft of the present invention.

Fig. 8 is the structural schematic diagram of clarifier-tank of the present invention.

Fig. 9 is the partial enlargement structural representation in Fig. 8 at A.

In figure, 1, by-pass filtration pipe；2, secondary filtration pipe；3, residue disperses wheel；3a, lautertuns；4, rotation axis；5, level-one Residue collecting box；5a, left half collecting box；5b, right half collecting box；6, the first residue port；7, return port；8, residue drives away roller Cylinder；9, cylinder is cleaned；9a, bristle；10, second level residue collecting box；11, the second residue port；12, residue scraper plate；13, telescopic rod； 14, compressed spring；15, side door；16, the first outfall；17, PH detects bucket；18, the second sewage is discharged into mouth；19, acid solution electricity Magnet valve；20, lye solenoid valve；21, neutral liquid electromagnetic valve；22, acid solution deposit box；23, lye deposit box；24, neutral solution is saved Case；25, electronics PH meter one；26, neutralization reaction bucket；27, acid control solenoid valve；28, alkali control solenoid valve；29, liquid outlet electromagnetic valve；30, Electronics PH meter two；31, agitator arm；32, third sewage is discharged into mouth；33, third outfall；34, paddle wheel is revolved；34a, paddle Leaf；34aa, venthole；34b, wheel hub 34b；34ba, inlet chamber 35, appendix；36, angle joint；37, air pump；38, impeller turns Axis；39, drainage hood；40, folliculus net；41, bubble persists room；42, drainage tube；43, drainage point cover；44, sparge pipe；44a, water spray Hole；45, water delivery general pipeline；46, connecting rod；47, floater shot；48, sludge collection box；49, sludge is into mouth；50, suction pump；51, dirty Mud filter screen；52, digging wheel；52a, wheel plate；52aa, tooth；53, pond is conserved；54, the 4th sewage is discharged into mouth；55, the 4th is dirty Water outlet；56, emergent aquactic plant；57, submerged plant；58, raft；59, nylon layer；60, sand stone layer；61, dirt bed mud Soil layer；62, web plate 1, web plate two；64, web plate three；65, retainer；66, flotation tank；67, web plate four；68, air conduction Cover；68a, blow vent；69, aspiration pump；70, Odor control case；70a, cabinet；70b, air filtration layer；70c, air filtration press from both sides net；71, one Grade pond body；72, second level pond body；73, three-level pond body；74, level Four pond body；75, the 5th sewage is discharged into mouth；76, the 5th sewage is discharged Mouthful；77, the first draining hole；78, the second draining hole；79, third draining hole；80, gravel packing；81, sandstone filter layer；82, Activated carbon adsorption layer；83, gravel presss from both sides net；84, sandstone presss from both sides net；85, active carbon presss from both sides net；86, gib block.

Specific embodiment

Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described, However, the present invention is not limited to these examples.

A kind of rural domestic sewage treatment process, which is characterized in that the treatment process includes carrying out in advance to sanitary sewage Processing and post-processing；

As depicted in figs. 1 and 2, the filter device in pre-treatment step 1 includes the by-pass filtration pipe 1 being vertically arranged and second level Screen pipe 2, secondary filtration pipe 2 are located at the bottom of by-pass filtration pipe 1 and connect with by-pass filtration pipe 1, the top of by-pass filtration pipe 1 It is connected to by pipeline with sewage water discharge mouth, the tapered residue for throwing residue away is provided in by-pass filtration pipe 1 and is dispersed Wheel 3, the vertex of a cone that residue disperses wheel 3 are set up, and the bottom that residue disperses wheel 3 offers tapered hollow opening to cone top part Mouthful, so that residue is dispersed the circular conical surface of wheel 3 is in thin wall shape, and the circular conical surface that residue disperses wheel 3 circumferentially offers several lautertuns 4, The quantity of lautertuns 4 is 20 in the present embodiment, and lautertuns 4 is opened up along the generatrix direction that residue disperses 3 circular conical surfaces of wheel, and is passed through The inside and outside wall of logical circular conical surface, the bottom that residue disperses wheel 3 are fixed with rotation axis 4, the driving machine that rotation axis 4 and one can be such that it rotates Structure one connects；In the present embodiment, which includes servo motor, and the body of servo motor is fixed on by-pass filtration pipe 1 Outer wall, the output shaft of servo motor pierces into by-pass filtration pipe 1, and the free end of servo motor output shaft is fixed with bevel gear, residual The bottom end that slag disperses the fixed rotation axis 4 in 3 bottoms of wheel is also fixed with bevel gear, and fixed bevel gear nibbles with servo motor output shaft It closes, drives residue to disperse 3 rotation of wheel by servo motor, the outer wall of by-pass filtration pipe 1, which is provided with, to be dispersed for collecting from residue The level-one residue collecting box 5 for the residue that wheel 3 is thrown away, level-one residue collecting box 5 is interior to have inner cavity, and level-one residue collecting box 5 is in ring Shape, including half collecting box 5a of a left side and half collecting box 5b of the right side, half collecting box 5a of a left side and half collecting box 5b of the right side distinguish detachable fixation The outer wall of half collecting box 5a of a left side and the right side half collecting box 5b and by-pass filtration pipe 1 are equal in the outer wall of by-pass filtration pipe 1, the present embodiment It is connected using buckle-type, the tube wall of by-pass filtration pipe 1 is offered for will enter level-one residue from dispersing the residue thrown away of wheel First residue port 6 of 5 inner cavity of collecting box, the bottom sidewall of by-pass filtration pipe 1 offer several return ports 7, in the present embodiment The quantity of return port 7 is 15, and several return ports 7 are connected to the inner cavity of level-one residue collecting box 5；

The section of secondary filtration pipe 2 is rectangle, and residue is horizontally arranged in the pipe of secondary filtration pipe 2 and drives away roller 8, residual Slag is driven away roller 8 and is fixed in such a way that axial restraint circumferentially rotates, and is connected in the present embodiment using shaft, and the both ends of shaft are turned The dynamic two sidewalls for being fixed on secondary filtration pipe 2, the outer circumferential walls that residue drives away roller 8 are arranged with cleaning cylinder 9, clean the circle of cylinder 9 Circumferential surface is evenly distributed with bristle 9a, and bristle 9a and the inner wall of secondary filtration pipe 2 are inconsistent, and residue, which drives away roller 8 and one, can make it The driving mechanism two of rotation connects, and in the present embodiment, driving mechanism two includes servo motor, and the body of servo motor is fixed on two The outer wall of grade screen pipe 2, the output shaft of servo motor pierce into secondary filtration pipe 2, and the output shaft and residue of servo motor drive away roller The shaft connection of cylinder 8；The outer wall of secondary filtration pipe 2 is fixed with second level residue collecting box 10, opens up on the side wall of secondary filtration pipe 2 There is the second residue port 11 of connection 10 inner cavity of second level residue collecting box, is provided with residue scraper plate in second level residue collecting box 10 12, the bristle 9a that the second residue port 11 and cleaning 9 outer wall of cylinder are stretched out in the top of residue scraper plate 12 is contradicted, the bottom of residue scraper plate 12 End is fixed by the intracavity bottom of a pre-tightening mechanism and second level residue collecting box 10, and pre-tightening mechanism includes telescopic rod 13 and compression bullet Spring 14, the top of telescopic rod 13 and the bottom end of residue scraper plate 12 are fixed, bottom end and the second level residue collecting box 10 of telescopic rod 13 Intracavity bottom is fixed, and compressed spring 14 is set on telescopic rod 13, bottom end and the second level residue collecting box 10 of compressed spring 14 Intracavity bottom is against the top of compressed spring 14 and the bottom end of residue scraper plate 12 are against the side wall of second level residue collecting box 10 is also It is provided with side door 15, the bottom end of secondary filtration pipe 2 is provided with the first outfall 16.

As shown in figure 3, the part flow arrangement in pre-treatment step 2 includes PH detection bucket 17, the inside of PH detection bucket 17 has Test chamber, the top of PH detection bucket 17 offer the second sewage and are discharged into mouth 18, and the second sewage is discharged into mouth 18 and passes through pipeline and first Outfall 16 is connected to, and the bottom of PH detection bucket 17 offers communication with detection chamber and external acid solution fluid hole, lye go out liquid Hole and neutral solution fluid hole, the bottom of acid solution fluid hole, lye fluid hole and neutral solution fluid hole are disposed with acid solution electromagnetism Valve 19, lye solenoid valve 20 and neutral liquid electromagnetic valve 21, acid solution solenoid valve 19 are connected to by pipeline with an acid solution deposit box 22, alkali Liquid electromagnetic valve 20 is connected to by pipeline with a lye deposit box 23, and neutral liquid electromagnetic valve 21 passes through pipeline and a neutral solution deposit box 24 connections, neutral solution deposit box 24 are connected to by pipeline with extraneous treatment tank, and PH detects setting in the test chamber of bucket 17 There is electronics PH to count 1, electronics PH meter 1, acid solution solenoid valve 19, lye solenoid valve 20 and neutral liquid electromagnetic valve 21 pass through line The connection of Lu Yuyi controller, the controller are PLC programmable controller.

Acid-base neutralization device in post-processing step a includes neutralization reaction bucket 26, has in neutralization reaction bucket 26 and neutralizes instead Chamber is answered, the side of neutralization reaction bucket 26 offers acid solution input hole one, and the other side offers lye input hole, and acid solution input hole is logical It crosses pipeline to connect with an acid control solenoid valve 27, the other end of acid control solenoid valve 27 is connected to by pipeline with acid solution deposit box 22, alkali Liquid input hole is connect by pipeline with an alkali control solenoid valve 28, and the other end of alkali control solenoid valve 28 passes through pipeline and lye deposit box 23 connections, the bottom of neutralization reaction chamber offer fluid hole, and fluid hole has liquid outlet electromagnetic valve 29, neutralization reaction by piping connection Chamber is provided with electronics PH meter 2 30 at fluid hole, and neutralization reaction is intracavitary to be provided with agitator arm 31, agitator arm 31 and one The driving mechanism three that it can be made to rotate connects, and in the present embodiment, driving mechanism three includes servo motor, and the body of servo motor is solid It is scheduled on the top of neutralization reaction bucket 26, the output shaft of servo motor pierces into neutralization reaction bucket 26 and connect with agitator arm 31, electronics PH meter 2 30, acid control solenoid valve 27, alkali control solenoid valve 28 and liquid outlet electromagnetic valve 29 are connect by route with the controller.

As shown in Figure 4 and Figure 5, the aeration tank in post-processing step b includes pond body, and there is pond body third sewage to be discharged into mouth 32 With third outfall 33, third sewage is discharged into mouth 32 and is connect by pipeline with liquid outlet electromagnetic valve 29, neutral solution deposit box 24 Mouth 32 is discharged into third sewage by pipeline to be connected to, and aeration generating device, aeration disperser, the removal of foam are provided in pond body Device and sludge recyclable device, aeration generating device includes the rotation paddle wheel 34 that bottom of pond is arranged in, and rotation paddle wheel 34 includes blade 34a and wheel hub, have inner cavity inside blade 34a, the top surface of blade 34a offer it is several be connected with the inner cavity blade 34a out Stomata 34aa, the quantity of venthole 34aa is 15 in the present embodiment, and blade 34a is fixed with wheel hub, hub interior with into Air cavity 34ba, inlet chamber 34ba are connected with the internal cavities of blade 34a, the bottom of wheel hub have connection inlet chamber 34ba into Port, the bottom of air inlet are provided with appendix 35, the top of appendix 35 be in air inlet and with air inlet clearance fit, The bottom end of appendix 35 is connected with an angle joint 36, and angle joint 36 is connect with an air pump 37 by pipeline, set in appendix 35 It is equipped with impeller shaft 38, top and the wheel hub of impeller shaft 38 are fixed, and the bottom end of impeller shaft 38 is pierced by angle joint 36, and with one The output axis connection of motor；

Aeration disperser includes drainage hood 39, and drainage hood 39 is in inverted funnel shape, and the upper end of drainage hood 39 is closed end, is drawn The upper end side wall of stream cover 39 offers several ports, and the quantity of port is two in the present embodiment, the axis about drainage hood 39 Symmetrical, the lower end of drainage hood 39 is open end, and the top of rotation paddle wheel 34 is arranged in drainage hood 39, makes to revolve at paddle wheel 34 It, should in the opening of 39 lower end of drainage hood, being additionally provided in 39 lower ending opening of drainage hood for by the folliculus net 40 of fining air bubbles Folliculus net 40 can be common iron wire net, be fixed on the inner wall of drainage hood 39, folliculus net 40 is located at the top of blade 34a, drainage hood It is in that olive-shaped bubble persists room 41 that 39 upper end, which is additionally provided with several, and it is two that bubble, which persists room 41, in the present embodiment, about The axisymmetrical of drainage hood 39 is distributed, and bubble persists room 41 and is arranged along its axis horizontal, and the two side ends that bubble persists room 41 have Opening, the opening that bubble persists 41 1 side of room are connected with the port of 39 upper end side wall of drainage hood；It is set vertically in drainage hood 39 It is equipped with spiral drainage tube 42, the bottom end of drainage tube 42 is connected with drainage point cover 43, and bubble is protruded on the top of drainage tube 42 It persists in room 41；

Bubble elimination device includes several sparge pipes 44 for being horizontally installed on aeration tank face, several water sprays in the present embodiment 100mm is divided between pipe 44, for the quantity of sparge pipe 44 depending on the size in pond face, sparge pipe 44 is in the waveform of dipping and heaving One end of shape, sparge pipe 44 is closed end, and the other end is input terminal, and the bottom of sparge pipe 44 offers several water sprays towards bottom of pond The interval of hole 44a, several hole for water spraying 44a can be distributed to the convex portion and negative area of sparge pipe 44, several hole for water sprayings 44a is uniformly distributed along the length direction of sparge pipe 44, and the input terminal of several sparge pipes 44 is connected to a water delivery general pipeline 45, and water delivery is total Pipe 45 is connect with a booster water pump；The closed end of several sparge pipes 44 is fixedly connected with a connecting rod 46, makes several sparge pipes 44 Length direction along connecting rod 46 is uniformly distributed, and water delivery general pipeline 45 and connecting rod 46 are provided with several floater shots along its length 47, the quantity that floater shot 47 is arranged is in a part of sparge pipe 44 above the face of pond, and a part is below the face of pond；

Sludge recyclable device includes the sludge collection box 48 that aeration tank bottom is arranged in, and the side of sludge collection box 48 opens up If there is dewatered sludge import, the quantity of sludge import is 20 in the present embodiment, and sludge import is fixed with sludge into mouth 49, sludge Funnel-shaped into mouth 49, including inlet end and an outlet end, the diameter of input end is greater than the diameter of outlet end, sludge into mouth 49 into Mouth end and sludge inlet communication and fixation, the outlet end of sludge into mouth 49 are protruded into the cabinet 70a of sludge collection box 48, and sludge is received The top of header 48 offers water outlet, and water outlet is connect by pipeline with a suction pump 50, close to out in sludge collection box 48 Sludge filtration net 51 is horizontally arranged at the mouth of a river.

Aeration generating device further includes the digging mechanism for keeping aeration tank pool bottom sludge loose, and digging mechanism includes level The digging wheel 52 of setting, digging wheel 52 include wheel plate 52a annular in shape, and the circumferential bottom of wheel plate 52a offers tooth 52aa, Tooth 52aa is contacted with aeration tank bottom, and digging wheel 52 is connect with the part that the bottom end of impeller shaft 38 is pierced by angle joint 36.

As shown in Figure 6 and Figure 7, the artificial swamp in post-processing step d includes self-restraint pond 53, and self-restraint pond 53 includes by coagulation The pond body that soil is built into, pond body include that the 4th sewage is discharged into mouth 54 and the 4th outfall 55, and the 4th sewage is discharged into mouth 54 and passes through Pipeline is connected to third outfall 33, and the intracorporal upper layer kind in pond is implanted with emergent aquactic plant 56, and it is heavy that the intracorporal lower layer's kind in pond is implanted with Water plant 57, emergent aquactic plant 56 are planted on a raft 58, and raft 58 includes successively folding the nylon set from the bottom up Layer 59, sand stone layer 60 and dirt bed 61, nylon layer 59 include a pair of web plate 1 arranged in parallel, are pressed between web plate 1 It is laminated with nylon wire, sand stone layer 60 includes a pair of web plate 2 63 arranged in parallel, is filled with sandstone, soil between web plate 2 63 Layer 61 includes a pair of web plate 3 64 arranged in parallel, is filled with soil between web plate 3 64, emergent aquactic plant 56 is planted in mud On soil layer 61, the periphery of web plate 1, web plate 2 63 and web plate 3 64 is fixed on a retainer 65 and by 65 phase of retainer Mutually stacking and fixed, is fixed with several flotation tanks 66 on retainer 65, the quantity of flotation tank 66 is according to the weight of required floating heavy object Depending on amount；The bottom of pond in self-restraint pond 53, which is filled out, is covered with soil, is stamped web plate 4 67 on soil upper berth, which uses plastic wire, Submerged plant 57 is planted in the soil of self-restraint 53 bottom of pond of pond.

The top in self-restraint pond 53 is provided with hemispherical air conduction cover 68, and the bottom end of air conduction cover 68 is open end, Top is enclosed construction, and the bottom end of air conduction cover 68 covers the pond body in self-restraint pond 53, the two sides of the bottom of air conduction cover 68 Blow vent 68a is offered, the top of air conduction cover 68 offers gas vent, and gas vent is connected by pipeline and an aspiration pump 69 It connects, the other end of aspiration pump 69 is connect by pipeline with an Odor control case 70, and Odor control case 70 includes cabinet 70a, cabinet The side of 70a offers air inlet, and is connect by pipeline with aspiration pump 69, and the other side of cabinet 70a offers gas outlet, case Several air filtration layer 70b are provided in body 70a, the quantity of air filtration layer 70b is three in the present embodiment, and air filtration layer 70b includes air filtration Active carbon is clamped between folder net 70c, air filtration folder net 70c.

As shown in Figure 8 and Figure 9, the clarifier-tank in post-processing step e includes the level-one being distributed step by step in step from top to bottom There is the 5th sewage to be discharged into mouth 75, level Four for pond body 71, second level pond body 72, three-level pond body 73 and level Four pond body 74, level-one pond body 71 Pond body 74 has the 5th outfall 76, and level-one pond body 71 offers the first draining hole 77, and the water in level-one pond body 71 is logical 77 row of the first draining hole is crossed to second level pond body 72, second level pond body 72 offers the second draining hole 78, the water in second level pond body 72 By 78 row of the second draining hole to three-level pond body 73, three-level pond body 73 offers third draining hole 79, the pond in three-level pond body 73 Water passes through 79 row of third draining hole to level Four pond body 74；Gravel packing 80, the second draining hole are provided in first draining hole 77 It is provided with sandstone filter layer 81 in 78, activated carbon adsorption layer 82 is provided in third draining hole 79.

Gravel packing 80 includes that several groups gravel presss from both sides net 83, and the gravel folder net 83 is clamped with gravel, several groups gravel Stone presss from both sides net 83 and cuts the first draining hole 77 against envelope side by side, and sandstone filter layer 81 includes that several groups sandstone presss from both sides net 84, and sandstone presss from both sides net 84 It is clamped with sandstone, several groups sandstone presss from both sides net 84 and cuts the second draining hole 78 against envelope side by side, and activated carbon adsorption layer 82 includes several groups Active carbon presss from both sides net 85, and active carbon folder net 85 is clamped with active carbon, and several groups active carbon presss from both sides net 85 and cuts third drainage against envelope side by side Mouth 79.In the present embodiment, the width that gravel presss from both sides net 83, sandstone folder net 84 and active carbon folder net 85 is 500mm, and quantity is by first Depending on the width that draining hole 77, the second draining hole 78 and third draining hole 79 actually open up.In the present embodiment, several groups gravel folder Net 83 cuts the first draining hole 77 against envelope side by side with the following method, and gib block 86 is laterally arranged at the first draining hole 77, leads It is divided to two groups to item 86, every group two, forms guide groove between every group of gib block 86, gravel folder net 83 is caught in guide groove, two Group guide groove clamps the top and bottom of gravel folder net 83 respectively, gravel packing 80 is divided into several groups in distribution up and down The mode that forms side by side of gravel folder net 83, convenient and maintenance and cleaning, when need to press from both sides net 83 to gravel clean when, can individually by It is a to be taken out from guide groove, it is very convenient.Gib block 86 can be used common metal bar and be made, and both ends are separately fixed at first In the pond body of 77 two sides of draining hole.Several groups sandstone presss from both sides net 84 and several groups active carbon folder net 85 cuts second against envelope side by side respectively Draining hole 78 and side by side against envelope cut a third draining hole 79, used specific embodiment with several groups gravel press from both sides 83 institute of net The method of use.

Claims

1. a kind of rural domestic sewage treatment process, which is characterized in that the treatment process includes being located in advance to sanitary sewage Reason and post-processing；

Pre-treatment step includes: 1, is filtered by filter device to sanitary sewage, the residue in filter sewage；2, by dividing Stream device is shunted and is saved to sour water, alkaline sewage and neutral sewage；

Post-processing step includes: that a, the sour water for being distributed part flow arrangement by acid-base neutralization device and alkaline sewage carry out It neutralizes, forms neutral sewage；B, neutral sewage is drained to aeration tank and carries out aerobic microbiological decomposition sewage treatment；C, by step Treated in b, and sewage is drained to the progress denitrification processing of denitrification pond；D, by treated in step c, sewage is drained to manually Wetland is handled；E, by treated in step d, sewage is drained to clarifier-tank progress purified treatment；The pre-treatment step 1 In filter device include the by-pass filtration pipe (1) and secondary filtration pipe (2) being vertically arranged, secondary filtration pipe (2) is located at level-one The bottom of screen pipe (1) is simultaneously connect with by-pass filtration pipe (1), and the top of the by-pass filtration pipe (1) is arranged by pipeline and sewage Dirty mouth is connected to, and is provided with the tapered residue for throwing residue away in the by-pass filtration pipe (1) and is dispersed wheel (3), residue The vertex of a cone for dispersing wheel (3) is set up, and the bottom that the residue disperses wheel (3) offers tapered hollow opening to cone top part Mouthful, so that the residue is dispersed the circular conical surface of wheel (3) is in thin wall shape, and the circular conical surface that the residue disperses wheel (3) circumferentially offers Several lautertuns (3a), the lautertuns (3a) opens up along the generatrix direction that residue disperses wheel (3) circular conical surface, and penetrates through circular conical surface Inside and outside wall, the bottom that the residue disperses wheel (3) is fixed with rotation axis (4), and the rotation axis (4) and one can make its rotation Driving mechanism one connect；The outer wall of the by-pass filtration pipe (1) be provided with for collect from residue disperse wheel (3) throw away it is residual The level-one residue collecting box (5) of slag, the level-one residue collecting box (5) is interior to have inner cavity, and the level-one residue collecting box (5) is in Ring-type, including left half collecting box (5a) and right half collecting box (5b), left half collecting box (5a) and right half collecting box (5b) point The not detachable outer wall for being fixed on the by-pass filtration pipe (1), the tube wall of the by-pass filtration pipe (1) are offered for will be from Disperse the first residue port (6) that the residue that wheel is thrown away enters level-one residue collecting box (5) inner cavity, the by-pass filtration pipe (1) bottom sidewall offers several return ports (7), and several return ports (7) are interior with the level-one residue collecting box (5) Chamber connection；

The section of the secondary filtration pipe (2) is rectangle, and residue is horizontally arranged in the pipe of secondary filtration pipe (2) and drives away roller (8), the residue is driven away roller (8) and is fixed in such a way that axial restraint circumferentially rotates, and the residue drives away the circle of roller (8) All outer walls are arranged with cleaning cylinder (9), and the periphery of cleaning cylinder (9) is evenly distributed with bristle (9a), the bristle (9a) Inconsistent with the inner wall of secondary filtration pipe (2), the residue is driven away the driving mechanism two that roller (8) can be such that it rotates with one and is connected It connects；The outer wall of the secondary filtration pipe (2) is fixed with second level residue collecting box (10), on the side wall of the secondary filtration pipe (2) The second residue port (11) of connection second level residue collecting box (10) inner cavity is offered, is set in the second level residue collecting box (10) It is equipped with residue scraper plate (12), the second residue port (11) and the cleaning cylinder (9) are stretched out in the top of residue scraper plate (12) The bristle (9a) of outer wall contradicts, and the bottom end of residue scraper plate (12) passes through a pre-tightening mechanism and the second level residue collecting box (10) Intracavity bottom is fixed, and the pre-tightening mechanism includes telescopic rod (13) and compressed spring (14), the top of telescopic rod (13) and institute The bottom end for stating residue scraper plate (12) is fixed, and the intracavity bottom of the bottom end of telescopic rod (13) and the second level residue collecting box (10) is solid Fixed, the compressed spring (14) is set on the telescopic rod (13), and the bottom end of compressed spring (14) and second level residue are collected The intracavity bottom of case (10) is against the bottom end of the top of compressed spring (14) and the residue scraper plate (12) is against the second level The side wall of residue collecting box (10) is additionally provided with side door (15), and the bottom end of the secondary filtration pipe (2) is provided with the first sewage row It exports (16).

2. a kind of rural domestic sewage treatment process according to claim 1, which is characterized in that the pre-treatment step 2 In part flow arrangement include PH detection bucket (17), PH detect bucket (17) inside have test chamber, PH detect bucket (17) top It offers the second sewage to be discharged into mouth (18), second sewage is discharged into mouth (18) and is discharged by pipeline and first sewage Mouthful (16) connection, the bottom of PH detection bucket (17) offer communication with detection chamber and external acid solution fluid hole, lye fluid hole and The bottom of neutral solution fluid hole, the acid solution fluid hole, lye fluid hole and neutral solution fluid hole is disposed with acid solution electromagnetism Valve (19), lye solenoid valve (20) and neutral liquid electromagnetic valve (21), the acid solution solenoid valve (19) are stored up by pipeline and an acid solution Case (22) connection is stored, the lye solenoid valve (20) is connected to by pipeline with a lye deposit box (23), the neutrality liquid electromagnetic Valve (21) is connected to by pipeline with a neutral solution deposit box (24), and the neutral solution deposit box (24) passes through pipeline and extraneous dirt Water treating pond is connected to, and electronics PH is provided in the test chamber of PH detection bucket (17) and counts one (25), the electronics PH meter one (25), acid solution solenoid valve (19), lye solenoid valve (20) and neutral liquid electromagnetic valve (21) are connect by route with a controller.

3. a kind of rural domestic sewage treatment process according to claim 2, which is characterized in that the post-processing step a In acid-base neutralization device include neutralization reaction bucket (26), there is neutralization reaction chamber, neutralization reaction bucket in neutralization reaction bucket (26) (26) side offers acid solution input hole one, and the other side offers lye input hole, and the acid solution input hole passes through pipeline It is connect with acid control solenoid valve (27), the other end of acid control solenoid valve (27) passes through pipeline and the acid solution deposit box (22) even Logical, the lye input hole is connect by pipeline with an alkali control solenoid valve (28), and the other end of alkali control solenoid valve (28) passes through pipe Road is connected to the lye deposit box (23), and the bottom of the neutralization reaction chamber offers fluid hole, and fluid hole is connected by pipeline It is connected to liquid outlet electromagnetic valve (29), the neutralization reaction chamber is provided with electronics PH at fluid hole and counts two (30), described to neutralize instead Answer it is intracavitary be provided with agitator arm (31), agitator arm (31) with one can make its rotate driving mechanism three connect, the electronics PH counts two (30), acid control solenoid valve (27), alkali control solenoid valve (28) and liquid outlet electromagnetic valve (29) by route and the control Device connection processed.

4. a kind of rural domestic sewage treatment process according to claim 3, which is characterized in that the post-processing step b In aeration tank include pond body, the pond body have third sewage be discharged into mouth (32) and third outfall (33), it is described Third sewage be discharged into mouth (32) and connect with the liquid outlet electromagnetic valve (29) by pipeline, the neutral solution deposit box (24) is led to It crosses pipeline and is discharged into mouth (32) with the third sewage and be connected to, aeration generating device, aeration diffusion dress are provided in the pond body Set, bubble elimination device and sludge recyclable device, the aeration generating device include the rotation paddle wheel (34) that bottom of pond is arranged in, The rotation paddle wheel (34) includes blade (34a) and wheel hub (34b), has inner cavity, blade inside the blade (34a) The top surface of (34a) offers several ventholes (34aa) being connected with the inner cavity blade (34a), the blade (34a) and wheel hub (34b) is fixed, has inlet chamber (34ba) inside the wheel hub (34b), the internal cavities of inlet chamber (34ba) and blade (34a) It is connected, the bottom of the wheel hub (34b) has the air inlet of connection inlet chamber (34ba), and the bottom of the air inlet is provided with Appendix (35), the top of appendix (35) be in the air inlet and with the air inlet clearance fit, appendix (35) bottom end is connected with an angle joint (36), and angle joint (36) is connect by pipeline with an air pump (37), the appendix (35) it is provided with impeller shaft (38) in, the top of impeller shaft (38) and the wheel hub (34b) are fixed, impeller shaft (38) Bottom end is pierced by the angle joint (36), and the output axis connection with a motor；

The aeration disperser includes drainage hood (39), and the drainage hood (39) is in inverted funnel shape, the drainage hood (39) upper end is closed end, and the upper end side wall of drainage hood (39) offers several ports, and the lower end of drainage hood (39) is opening End, drainage hood (39) setting make the rotation paddle wheel (34) be in the drainage in the top of rotation paddle wheel (34) In the opening for covering (39) lower end, it is additionally provided in drainage hood (39) lower ending opening for by the folliculus net of fining air bubbles (40), the folliculus net (40) is located at the top of the blade (34a), and the upper end of the drainage hood (39) is additionally provided with several It is persisted room (41) in olive-shaped bubble, the bubble persists room (41) and is arranged along its axis horizontal, and bubble persists room (41) Two side ends have opening, and the opening that bubble persists (41) one side of room is connected with the port of the drainage hood (39) upper end side wall It is logical；It is vertically arranged with spiral drainage tube (42) in the drainage hood (39), the bottom end of drainage tube (42) is connected with drainage Divide cover (43), the top of drainage tube (42) is protruded into the bubble and persisted in room (41)；

The bubble elimination device includes several sparge pipes (44) for being horizontally installed on aeration tank face, the sparge pipe (44) In the wave-like of dipping and heaving, one end of the sparge pipe (44) is closed end, and the other end is input terminal, the sparge pipe (44) bottom offers several hole for water sprayings (44a) towards bottom of pond, length of several hole for water sprayings (44a) along sparge pipe (44) Direction is uniformly distributed, and the input terminal of several sparge pipes (44) is connected to a water delivery general pipeline (45), water delivery general pipeline (45) and one Booster water pump connection；The closed end of several sparge pipes (44) is fixedly connected with a connecting rod (46), makes several water sprays Pipe (44) is uniformly distributed along the length direction of connecting rod (46), and the water delivery general pipeline (45) and connecting rod (46) are along its length It is provided with several floater shots (47)；

The sludge recyclable device includes the sludge collection box (48) that aeration tank bottom is arranged in, the side of sludge collection box (48) If face offers dewatered sludge import, the sludge import is fixed with sludge into mouth (49), and the sludge is into mouth (49) in leakage It is bucket-shaped, including inlet end and an outlet end, diameter of the diameter greater than outlet end of input end, input end of the sludge into mouth (49) The cabinet of the sludge collection box (48) is protruded into the outlet end of the sludge inlet communication and fixation, the sludge into mouth (49) In (70a), water outlet is offered at the top of the sludge collection box (48), water outlet is connected by pipeline and a suction pump (50) It connects, is horizontally arranged with sludge filtration net (51) close to water outlet in the sludge collection box (48).

5. a kind of rural domestic sewage treatment process according to claim 4, which is characterized in that the aeration generating device It further include the digging mechanism for keeping aeration tank pool bottom sludge loose, the digging mechanism includes horizontally disposed digging wheel (52), the digging wheel (52) includes wheel plate annular in shape (52a), and the circumferential bottom of wheel plate (52a) offers tooth (52aa), the tooth (52aa) are contacted with aeration tank bottom, the digging wheel (52) and the impeller shaft (38) Bottom end is pierced by the part connection of angle joint (36).

6. a kind of rural domestic sewage treatment process according to claim 5, which is characterized in that the post-processing step d In artificial swamp include self-restraint pond (53), the self-restraint pond (53) includes the pond body being built by concrete, the pond body packet It includes the 4th sewage and is discharged into mouth (54) and the 4th outfall (55), the 4th sewage is discharged into mouth (54) and passes through pipeline and described the Three outfalls (33) connection, the intracorporal upper layer kind in pond are implanted with emergent aquactic plant (56), the intracorporal lower layer's plantation in pond Have submerged plant (57), the emergent aquactic plant (56) is planted on a raft (58), and the raft (58) includes Nylon layer (59), sand stone layer (60) and the dirt bed (61) set is successively folded from the bottom up, and the nylon layer (59) includes a pair Web plate one (62) arranged in parallel, laminated has nylon wire between the web plate one (62), and the sand stone layer (60) includes A pair of web plate two (63) arranged in parallel is filled with sandstone, the dirt bed (61) packet between the web plate two (63) A pair of web plate three (64) arranged in parallel is included, is filled with soil, the emergent aquactic plant between the web plate three (64) (56) it is planted on the dirt bed (61), the periphery of the web plate one (62), web plate two (63) and web plate three (64) is fixed It is layered on top of each other and fixes on a retainer (65) and through retainer (65), be fixed with several floatings on the retainer (65) Case (66)；The bottom of pond of self-restraint pond (53), which is filled out, is covered with soil, is stamped web plate four (67), the submerged plant on soil upper berth (57) it is planted in the soil of described self-restraint pond (53) bottom of pond.

7. a kind of rural domestic sewage treatment process according to claim 6, which is characterized in that self-restraint pond (53) Top is provided with hemispherical air conduction cover (68), and the bottom end of the air conduction cover (68) is open end, and top is envelope Structure is closed, the bottom end of the air conduction cover (68) covers the pond body of self-restraint pond (53), the air conduction cover (68) Two sides of the bottom offer blow vent (68a), offer gas vent at the top of the air conduction cover (68), the gas vent is logical It crosses pipeline to connect with an aspiration pump (69), the other end of aspiration pump (69) is connect by pipeline with an Odor control case (70), institute The Odor control case (70) stated includes cabinet (70a), and the side of cabinet (70a) offers air inlet, and by pipeline with it is described Aspiration pump (69) connection, the other side of cabinet (70a) offers gas outlet, is provided with several air filtrations in the cabinet (70a) Layer (70b), the air filtration layer (70b) include air filtration folder net (70c), are clamped between air filtration folder net (70c) active Charcoal.

8. a kind of rural domestic sewage treatment process according to claim 7, which is characterized in that the post-processing step e In clarifier-tank include level-one pond body (71), second level pond body (72), the three-level pond body (73) being distributed step by step in step from top to bottom With level Four pond body (74), there is the level-one pond body (71) the 5th sewage to be discharged into mouth (75), and the level Four pond body (74) has the Five outfalls (76), the level-one pond body (71) offer the first draining hole (77), the pond in the level-one pond body (71) Water is arranged by the first draining hole (77) to the second level pond body (72), and the second level pond body (72) offers the second draining hole (78), the water in the second level pond body (72) is arranged by the second draining hole (78) to the three-level pond body (73), and described three Grade pond body (73) offer third draining hole (79), the water in the three-level pond body (73) by third draining hole (79) arrange to The level Four pond body (74)；It is provided with gravel packing (80) in first draining hole (77), second draining hole (78) it is provided with sandstone filter layer (81) in, is provided with activated carbon adsorption layer (82) in the third draining hole (79).

9. a kind of rural domestic sewage treatment process according to claim 8, which is characterized in that the gravel packing It (80) include several groups gravel folder net (83), gravel folder net (83) is clamped with gravel, and the several groups gravel presss from both sides net (83) first draining hole (77) is cut against envelope side by side, the sandstone filter layer (81) includes several groups sandstone folder net (84), sandstone folder net (84) is clamped with sandstone, and several groups sandstone folder net (84) is side by side against described in envelope section Second draining hole (78), the activated carbon adsorption layer (82) include several groups active carbon folder net (85), the active carbon folder Net (85) is clamped with active carbon, and several groups active carbon folder net (85) cuts the third draining hole against envelope side by side (79)。