CN105110474B - A kind of landscape type village sewage is collected and processing system - Google Patents

A kind of landscape type village sewage is collected and processing system Download PDF

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CN105110474B
CN105110474B CN201510483542.3A CN201510483542A CN105110474B CN 105110474 B CN105110474 B CN 105110474B CN 201510483542 A CN201510483542 A CN 201510483542A CN 105110474 B CN105110474 B CN 105110474B
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village
landscape
landscape river
river
water
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CN105110474A (en
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王欣泽
沈剑
李旭东
何小娟
吴海露
张盛博
吴阳
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The invention discloses a kind of collection of landscape type village sewage and processing systems;Including ring village Landscape River and bio-trickling filter processing unit;It after village sanitary sewage and livestock breeding wastewater enter Landscape River sewer, converges and carries out biochemical reaction to bio-trickling filter processing unit, water outlet is discharged into the main canal of Landscape River after reaction;The section of the main canal of Landscape River takes multistage ladder-like, and plantation has submerged plant, the emergent aquactic plant of pollutant purification effect respectively on each ladder.The pollution of regional rural comprehensive is generated, discharges, collects, handles each link and bring into contamination control system by the present invention, the rural household's life sewage and livestock breeding wastewater of high concentration have been handled by reinforced sewage treatment facility, the rainfall runoff low-pollution water for carrying village pollution of area source has been handled by ring village landscape river, pass through the operating efficiency for effectively optimizing sewage treatment facility of the two again, the mobility for improving ring village landscape river simultaneously, has reached preferable environmental benefit and ecological benefits.

Description

A kind of landscape type village sewage is collected and processing system
Technical field
The present invention relates to water-treatment technology fields, and in particular to a kind of landscape type village sewage is collected and processing system.
Background technique
China is large agricultural country, and rural area area accounts for about the 60% of territory total area.The pollution that cities and towns generate at present is basic It is controlled, downtown areas rain sewage diversion, town sewage enters sewage network, at the centralization sewage treatment plant of cities and towns Reason, rainwater then enter Storm Sewer Network and carry out reuse.And nowadays the pollution that rural area village generates also gradually is paid attention to, universal village The processing mode for falling sewage is handled using decentralized type sewage treatment facility, and such as soil sanitation slot, connects biological aerated filter Touch oxidation pond, oxidation pond etc..
But there are still problems in rural pollution control, mainly include the following:
(1) country practical sanitary sewage discharge amount is unstable.One side rural area migrant worker is more, mobility of people It is relatively strong, show the phenomenon that discharge amount is irregular, unstable;The universal economic condition in another aspect rural area is poor, especially relatively partially Remote village, the use of dry pail latrine causes to flush the toilet, and waste water is less, and the consciousness of saving water of peasant household is higher, bath wastewater and kitchen waste water also phase When less;And then sanitary sewage discharge amount is larger for relatively rich peasant household.Discharge amount is unstable to easily lead to decentralized type sewage processing Facility actual treatment amount can all cause treatment effeciency to decline far smaller than or more than Design cooling load, and effluent quality deteriorates.
(2) it is directed to sewage treatment itself when decentralized type sewage treatment facility designs, it is simple to consider sewage feature (as intake Water quality, sewage water etc.) come select with optimization processing technique, to reach preferable wastewater treatment efficiency.And in a practical situation, Part livestock cultivation excrement and domestic sewage in rural areas often enter sewage collecting channel simultaneously, and the water and water quality of sewage occur Variation, these can all influence sewage treating efficiency decline.
(3) there are the habit of raise livestock, poultry in many peasant households, and feces of livestock and poultry and urine tend to vary with sanitary sewage and arrange together It puts, is also often scattered in village and neighboring area, the pollutant load in Animal fecal pollution is even more than rural household's life pollutant, Such small-scale free-ranging Pollution from livestock and poultry is constantly subjected to ignore.
(4) village economic condition is relatively poor, and sewage collecting pipe-line construction cost is higher, the rural area finance of remote backwardness compared with Hardly possible is born.
(5) poor for geological conditions, such as settlement of foundation area, the rural area of Mountainous Regions, it is difficult to sewage collecting pipeline is laid, Constrain the contamination control in its village.
Summary of the invention
It is an object of the invention to overcome the problems of the above-mentioned prior art, a kind of landscape type village sewage collection is provided With processing system.The present invention is innovated from thinking, and the pollution of regional rural comprehensive is generated, discharge, collect, handles each ring Section is brought into contamination control system, has handled the rural household's life sewage of high concentration by reinforced sewage treatment facility and livestock and poultry are supported Both waste water is grown, the rainfall runoff low-pollution water for carrying village pollution of area source has been handled by ring village landscape river, then has been passed through The operating efficiency for effectively optimizing sewage treatment facility, while improving the mobility in ring village landscape river, reach Preferable environmental benefit and ecological benefits are arrived.
The purpose of the present invention is be achieved through the following technical solutions:
Collected the present invention relates to a kind of landscape type village sewage and processing system, the system comprises ring village Landscape River and Bio-trickling filter processing unit, ring village Landscape River include Landscape River sewer and the main canal (low-pollution water of Landscape River Handle main canal);Village sanitary sewage and livestock breeding wastewater converge after effluent outfall enters Landscape River sewer to biology Trickling filter processing unit carries out biochemical reaction, and the water outlet of bio-trickling filter processing unit is discharged into the main canal of Landscape River;The Landscape River The section of the main canal in road takes multistage ladder-like, and wherein plantation has pollutant purification effect respectively on pollution water surfaces ladder below Submerged plant, emergent aquactic plant.
Preferably, the section of the main canal of the Landscape River takes three-level ladder-like, plants planting submerged plant on bottom ladder, Emergent aquactic plant is planted on middle layer ladder, plants arbor, shrub or flowers on top ladder.
Preferably, the submerged plant includes hornwort or water caltrop;The emergent aquactic plant includes reed or hay grass.
Preferably, soil layer is fixed with geotextiles on the inside of the three-level ladder of the main canal of the Landscape River, every level width is 0.3~ 0.5m carries 0.5~1m of stake spacing using timber or imitation wood stake shore protection.
Preferably, the low-pollution water in the main canal of the Landscape River can be introduced to bio-trickling filter processing unit, with dilution Import the high concentration village sanitary sewage and livestock breeding wastewater of bio-trickling filter processing unit.
Preferably, the COD of the bio-trickling filter processing unit processes raw waterCrConcentration is 300~600mg/L.When through scape See village sanitary sewage and livestock breeding wastewater COD that river sewage canal imports bio-trickling filter processing unitCrWhen excessive concentration, The low-pollution water being introduced into the main canal of Landscape River is diluted by bio-trickling filter processing unit.
Preferably, the rainfall runoff low-pollution water for carrying village pollution of area source imports the main canal of Landscape River.
Preferably, the Landscape River sewer and the main canal of Landscape River are disposed in parallel in ring village Landscape River, and dirty The inside of the main canal of Landscape River is arranged in water channel.
Preferably, waterpower plug flow device is equipped in the main canal of the Landscape River, control low-pollution water in channel with 0.1~ The speed of 0.2m/s flows.
Preferably, the system also includes connection canals, the gate for the adjusting connection canal being arranged on the main canal of Landscape River;It is low Contaminant water after the heavy water in the main canal of Landscape River, emergent aquactic plant further purify, through the gate, connection canal be discharged into it is original from Right river.
Compared with prior art, the invention has the following beneficial effects:
1) village sewage of the invention is collected and processing system is had in mind from regional pollution control, and village presence of pollution sources is complete Full isolation and control, avoid the pollutant effect periphery water environment of village generation, solve zonal environmental problem.
2) pollutant process of this system is high-efficient, and bio-trickling filter can will reach level-one B (GB18918- after sewage treatment 2002) horizontal, then pass through the catharsis of Landscape River three-level ecological revetment, low-pollution water is further purified, can be made Final outflow water reaches surface water III~IV class (GB3838-2002) level.
3) this system uses low energy consumption treatment facility -- bio-trickling filter, and bio-trickling filter during-operation service only needs a water Power is promoted, ton water consumption only 0.1kWh.
4) this system Landscape River form of fracture uses the multistage aquatic heavy water with pollutant fluxes catharsis, endures The collocation of water plant, increases water body self-purification ability, and for fish and other animal predations, improve bio-diversity, rich Rich river channel ecology system.
5) this system construction cost is lower.Ring village Landscape River can be transformed on the basis of original village farmland discharging-irrigating canal and At trickling filter treating stations construction cost is cheap, without laying sewage collecting pipe network in village, greatly reduces sewage collection system Construction cost is suitable for more remote poor countryside area, and the area of pipe network should not be laid by being also adapted for geological conditions.
6) bio-trickling filter of this system and channel waterpower plug flow device can realize automatic running, be not necessarily to personal management, only It need to inspect periodically, be easy to popularize in technical staff such as rural areas compared with the area of shortage.
7) in the form for the landscape type shore protection that sewage collecting of the invention and processing system are taken, arbor, shrub, flowers, Very water, submerged plant are interlocked, and the promotion of the processing of sewage, pumping equipment improved with environmental ecology landscape are organically combined, symbol The thought connotation for closing state socialism new countryside construction, while solving dirty rural areas, unrest, difference, perfect draining is set It applies, changes look of a village village looks, by building foot bridge, flowing water, other ecoscape, effectively improve the humane feelings of rural area Bosom.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention, Objects and advantages will become more apparent upon:
Fig. 1 is the process flow chart of landscape type village pollution collection and processing system of the invention;
Fig. 2 is that village sewage is collected and processing system figure;
Fig. 3 is the construction form schematic diagram of main canal section;
Wherein, 1, bio-trickling filter, 2, effluent outfall, 3, waterpower plug flow device, 4, the main canal of Landscape River, 5, village side Edge peasant household, 6, Landscape River sewer, 7, the connection canal with gate, 8, original natural river, 9, bio-trickling filter outlet pipe, 10, timber or imitation wood stake, 11, gravel corner protector, 12, river bed, 13, embankment, 14, arbor, 15, reed or hay grass, 16, hornwort or Water caltrop, 17, village edge rural household's life sewage and livestock breeding wastewater discharge outlet, 19, communicating pipe, 20, cover board.
Specific embodiment
The following describes the present invention in detail with reference to examples.Following embodiment will be helpful to those skilled in the art The present invention is further understood, but the invention is not limited in any way.It should be pointed out that those skilled in the art For, without departing from the inventive concept of the premise, it can also make certain adjustments and improvements.These belong to guarantor of the invention Protect range.
Embodiment 1
Landscape type village of the present invention pollution is collected with processing system as shown in Figure 1, be mainly made of three parts, It is that village sanitary sewage and livestock breeding wastewater collecting region, bio-trickling filter treating stations, low-pollution water are regulated and stored and landscape life respectively State treatment region.The sanitary sewage and livestock breeding wastewater of village fringe region peasant household enter sewer nearby, and sewer imports low The bio-trickling filter of operation energy consumption carries out biochemical treatment, includes sewage distributing canal and low-pollution water processing master in ring village Landscape River Canal, the pollution that village inside generates are carried along into low-pollution water through rainfall runoff and handle main canal, certainly by the water body in main canal Net and submerged plant, emergent aquactic plant remove the absorption of pollutant.
The contamination control object of this system is village rural household's life sewage and the fecaluria pollution that domestic livestock and poultry generate.Along village Peasant household's inhabitation area edge builds ring village landscape channel, which utilizes original irrigation canal in village, blowdown canal to be transformed as far as possible It forms, saves construction cost, concrete form is shown in Fig. 2.Ring village Landscape River includes the main canal 4 of Landscape River and Landscape River sewer 6.Sanitary sewage caused by village edge peasant household 5 can enter Landscape River sewer 6 by effluent outfall 2 nearby, dirty Cover plate on water channel avoids sewage peculiar smell from breeding mosquitos and flies.The village Yu Huan builds region topography lowest point a bio-trickling filter 1, Landscape River Sewage natural in road sewer 6 converges to bio-trickling filter 1, and bio-trickling filter only needs a hydraulic hoisting that can drip filter Biochemical reaction, operation energy consumption are lower.The water outlet of bio-trickling filter 1 is drained into the main canal 4 of Landscape River through bio-trickling filter outlet pipe 9 In, bio-trickling filter 1 the introducing sewer 6 of the low-pollution water in main canal 4 can also be carried out diluting high-concentration sanitary sewage and livestock and poultry are supported Grow waste water (CODCr> 1000mg/L) so as to ensure bio-trickling filter operate efficiency.The pollution generated inside village passes through rainwater diameter Stream is final also to be imported in the main canal 4 of Landscape River, is stored in the main canal of Landscape River together with the tail water of trickling filter processing, in main canal Several waterpower plug flow devices 3 are set, low-pollution water in main canal is made to be in the state circulated.Pass through water, very water heavy in main canal Plant further purifies low-pollution water, is discharged into original natural river 8 eventually by the connection canal 7 with gate.The dirt of this system It is high to contaminate object treatment effeciency, bio-trickling filter can will reach level-one B (GB18918-2002) level after sewage treatment, then pass through scape The catharsis of river three-level ecological revetment is seen, low-pollution water is further purified, and final outflow water can be made to reach surface water III ~IV class (GB3838-2002) is horizontal.
The construction form schematic diagram of the section of the main canal of Landscape River of the invention is as shown in figure 3, village edge rural household's life Sewage and livestock breeding wastewater pass through village edge rural household's life sewage and livestock breeding wastewater discharge outlet 17 is discharged into Landscape River Road sewer 6 is stamped cover board 20 on Landscape River sewer 6;Sewage in Landscape River sewer 6 is handled through bio-trickling filter Afterwards, by communicating pipe 19, by Sewage Disposal, treated that tail water is introduced into the main canal of Landscape River, according to ordinary water level and flood Position situation uses submerged plant-complete ecological revetment plants configuration of emergent aquactic plant-shrub-arbor from water body to bank Scheme plants hornwort or water caltrop 16 in minimum level-one soil layer, can be used as the food of fish and zooplankter, and reed is planted in the second level Reed or hay grass 15 all have the function of preferable pollutant removal, especially can effectively cut down the nitrogen pollutant in river water, third Grade is 13 or more embankment, can plant landscape plant, such as arbor, shrub 14, the soil layer of every level-one using geotextiles progress every It is fixed from and with timber or imitation wood stake 10,12 spats of river bed uses gravel 11, provides for aquatile and inhabites space.Low dirt Dye water slowly flows in river, and water pollutant is adsorbed by plant, absorbed, fish, zooplankter predation, microorganism in water Degradation, the processes such as self-purification of water are cut down removal.
Landscape type village pollution of the invention is collected mainly to be had with processing system main points:
A. the form of fracture of ring village Landscape River takes three-level ladder-like, and soil layer, every level width are fixed with geotextiles in inside 0.3~0.5m carries 0.5~1m of stake spacing using timber or imitation wood stake shore protection.
B. Landscape River vegetation selection aspect, first order kind planting submerged plant, optional hornwort or water caltrop, are enriched in the bottom Pollutant simultaneously purifies water, and emergent aquactic plant, optional reed or hay grass are planted in the second level, further can adsorb and be enriched with and is poisonous and harmful Substance, can be according to landscape needs on third level embankment, and arrange in pairs or groups plantation arbor, shrub or flowers etc. form in picturesque disorder ring village Landscape " moat ".
C. several waterpower plug flow devices are set in the main canal of ring village landscape, make low-pollution water in channel with 0.1~0.2m/s Speed slowly flow.
D. bio-trickling filter processing raw water should ensure that CODCrThe life of concentration 300~600mg/L range level, high concentration is dirty Water and livestock breeding wastewater, which should introduce low-pollution water and be diluted, can introduce bio-trickling processing system.
E. when the main channel water amount of Landscape River is larger or rainy season arrive when, by adjust connection canal the timely overflow of gate to In natural river, flood passage safety is ensured.
F. sewer collects sewage produced by village edge peasant household, is not necessarily to lay inside village and collects pipe network, can be by bright Canal, closed conduit various forms, cover plate on sewer prevent from dissipating outside sewage stink, breed mosquitos and flies.
In conclusion for existing rural pollution control in have the following problems: 1. village sanitary sewage discharge it is unstable, 2. village sewage collection conduit cost is high, 3. small-scale free-ranging Pollution from livestock and poultry is not included in processing system, 4. existing sewage Treatment facility operates that efficiency is poor, 5. village pollution of area source is easily with rainwater runoff pollution periphery water environment;The present invention is from thinking It is innovated, the pollution of regional rural comprehensive is generated, discharge, collect, handles each link and brings into contamination control system, it is logical Rural household's life sewage and livestock breeding wastewater that reinforced sewage treatment facility has handled high concentration are crossed, ring village landscape river is passed through The rainfall runoff low-pollution water for carrying village pollution of area source has been handled, then sewage treatment is effectively optimized by the two The operating efficiency of facility, while the mobility in ring village landscape river is improved, reach preferable environmental benefit and Ecological Effect Benefit.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow Ring substantive content of the invention.

Claims (4)

1. a kind of landscape type village sewage is collected and processing system, which is characterized in that the system comprises ring village Landscape River and Bio-trickling filter processing unit, ring village Landscape River include Landscape River sewer and the main canal of Landscape River;Village life Sewage and livestock breeding wastewater converge to bio-trickling filter processing unit and carry out after effluent outfall enters Landscape River sewer Biochemical reaction, the water outlet of bio-trickling filter processing unit are discharged into the main canal of Landscape River;The section of the main canal of Landscape River is taken more Grade is ladder-like, and wherein there is the submerged plant of pollutant purification effect, very water to plant for plantation respectively on pollution water surfaces ladder below Object;
Ring village Landscape River can be transformed on the basis of original village farmland discharging-irrigating canal;The Landscape River sewer and The main canal of Landscape River is disposed in parallel in ring village Landscape River, and the inside of the main canal of Landscape River is arranged in sewer;
The COD of the bio-trickling filter processing unit processes raw waterCrConcentration is 300~600mg/L;When through Landscape River sewer Import the village sanitary sewage and livestock breeding wastewater COD of bio-trickling filter processing unitCrWhen excessive concentration, at bio-trickling filter The low-pollution water being introduced into the main canal of Landscape River is diluted by reason unit;
The rainfall runoff low-pollution water for carrying village pollution of area source imports the main canal of Landscape River;
It is equipped with waterpower plug flow device in the main canal of Landscape River, controls low-pollution water in channel with the speed of 0.1~0.2m/s Degree flowing;
The system also includes connection canals, the gate for the adjusting connection canal being arranged on the main canal of Landscape River;Low-pollution water is through scape After heavy water, emergent aquactic plant in the sight main canal in river further purify, original natural river is discharged into through the gate, connection canal.
2. landscape type village sewage according to claim 1 is collected and processing system, which is characterized in that the Landscape River The section of main canal takes three-level ladder-like, and planting submerged plant is planted on bottom ladder, emergent aquactic plant is planted on middle layer ladder, most Arbor, shrub or flowers are planted on high-rise ladder.
3. landscape type village sewage according to claim 2 is collected and processing system, which is characterized in that the submerged plant Including hornwort or water caltrop;The emergent aquactic plant includes reed or hay grass.
4. landscape type village sewage according to claim 1 is collected and processing system, which is characterized in that the Landscape River Soil layer is fixed with geotextiles on the inside of the three-level ladder of main canal, every level width is 0.3~0.5m, using timber or imitation wood stake shore protection, Carry 0.5~1m of stake spacing.
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CN108706740B (en) * 2018-07-20 2021-06-29 上海交通大学 Technical method for improving denitrification efficiency of estuary wetland
CN109763560B (en) * 2019-03-12 2023-12-08 中铁四川生态城投资有限公司 Terrace type ecological landscape lake and construction method thereof

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