CN105110474A - Landscape type village sewage collecting and treating system - Google Patents
Landscape type village sewage collecting and treating system Download PDFInfo
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- CN105110474A CN105110474A CN201510483542.3A CN201510483542A CN105110474A CN 105110474 A CN105110474 A CN 105110474A CN 201510483542 A CN201510483542 A CN 201510483542A CN 105110474 A CN105110474 A CN 105110474A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The present invention discloses a landscape type village sewage collecting and treating system. The system comprises a village-surrounding landscape riverway and a bio-trickling filter treating unit; wherein village domestic sewage and livestock and poultry breeding wastewater drain into a landscape riverway sewage canal, and then flow together to the bio-trickling filter treating unit and undergo a biochemical reaction, and after the reaction, the sewage is discharged into a main canal of the landscape riverway; and cross sections of the main canal of the landscape riverway is provided with a multi-stepped shape, and each step is planted respectively with submerged plants and emerged plants that have a purification effect of contaminations. According to the system provided by the present invention, all links of generating, discharging, collecting, and treating of regional village comprehensive pollution are incorporated into a pollution control system, the farmer domestic sewage and the livestock and poultry breeding wastewater with a high concentration are treated by a sewage intensifying treating facility, slightly-polluted water of rainfall runoff that carries village surface pollution is treated by the village-surrounding landscape riverway, and an operating performance of the sewage treating facility is effectively optimized by the combination of the two, and meanwhile a liquidity of the village-surrounding landscape riverway is improved, and a preferable environmental benefit and a preferable ecological benefit are achieved.
Description
Technical field
The present invention relates to water-treatment technology field, be specifically related to a kind of landscape type village sewage and collect and treatment system.
Background technology
China is large agricultural country, and rural area area accounts for 60% of territory total area.The pollution that current cities and towns produce is controlled substantially, and downtown areas rain dirt shunting, town sewage enters sewage network, and by cities and towns, centralized sewage work processes, and rainwater then enters Storm Sewer Network and carries out reuse.And nowadays the pollution that village, rural area produces also is paid attention to gradually, the processing mode of general village sewage utilizes decentralized type sewage treatment facility to process, as soil sanitation groove, BAF, contact-oxidation pool, oxidation pond etc.
But rural pollution control in still there are problems, mainly comprise following some:
(1) country practical sanitary sewage quantity discharged is unstable.Rural area migrant worker is more on the one hand, and mobility of people is comparatively strong, presents the phenomenon that quantity discharged is irregular, unstable; On the other hand the general economic condition in rural area is poor, especially more remote village, and the use in the non-irrigated lavatory waste water that causes flushing the toilet is less, and the consciousness of saving water of peasant household is higher, and bath wastewater and kitchen waste water are also quite less; Then sanitary sewage quantity discharged is larger in relatively rich peasant household.Quantity discharged instability easily causes decentralized type sewage treatment facility actual treatment amount be far smaller than or exceed design loading, and processing efficiency all can be caused to decline, and effluent quality worsens.
(2) all for sewage disposal itself when decentralized type sewage treatment facility designs, simple consideration sewage feature (as influent quality, the sewage water yield etc.) carrys out choice and optimization treatment process, to reach good wastewater treatment efficiency.And in a practical situation, part livestock cultivation ight soil and domestic sewage in rural areas often enter sewage collecting channel simultaneously, the water quantity reduction of sewage there occurs change, and these all can affect sewage treating efficiency and decline.
(3) there are the custom of raise livestock, poultry in many peasant households, feces of livestock and poultry often discharges with sanitary sewage with urine, also in village and neighboring area is often scattered in, pollutant load in Animal fecal pollution even exceedes rural household's life pollutent, and this type of is raised Pollution from livestock and poultry scattered on a small scale and is ignored always.
(4) village economic condition is relatively poor, and sewage collecting pipe-line construction cost is higher, and the rural area finance of remote backwardness is more difficult bears.
(5) poor for geologic condition, as the rural area of settlement of foundation district, Mountainous Regions, be difficult to lay sewage collecting pipeline, constrain the Environmental capacity in its village.
Summary of the invention
The object of the invention is to the defect overcoming the existence of above-mentioned prior art, provide a kind of landscape type village sewage to collect and treatment system.The present invention innovates from thinking, regional rural comprehensive is polluted and produces, discharge, collect, process each link and bring in Environmental capacity system, the rural household's life sewage of high density and livestock breeding wastewater by the process of reinforced sewage treatment facility, carried the rainfall runoff low-pollution water of village pollution of area source by the river course process of ring village landscape, again by both running usefulness effectively optimizing sewage treatment facility, improve the mobility in ring village landscape river course simultaneously, reach good environmental benefit and ecological benefits.
The object of the invention is to be achieved through the following technical solutions:
The present invention relates to a kind of landscape type village sewage to collect and treatment system, described system comprises ring village Landscape River and bio-trickling filter processing unit, and described ring village Landscape River comprises Landscape River sewer and the main canal of Landscape River (the main canal of low-pollution water process); Village sanitary sewage and livestock breeding wastewater enter after Landscape River sewer through effluent outfall, and converge to bio-trickling filter processing unit and carry out biochemical reaction, the water outlet of bio-trickling filter processing unit enters the main canal of Landscape River; The section of the main canal of described Landscape River is taked multistage stepped, and on the ladder wherein below pollution water surfaces, plantation has submerged plant, the emergent of pollutant purification effect respectively.
Preferably, the section of the main canal of described Landscape River take three grades stepped, lowest layer ladder plants planting submerged plant, middle layer ladder plants emergent, top ladder is planted arbor, shrub or flowers.
Preferably, described submerged plant comprises hornwort or water caltrop; Described emergent comprises reed or hay grass.
Preferably, fix soil layer by geotextile inside three grades of ladders of the main canal of described Landscape River, every level width is 0.3 ~ 0.5m, adopts timber or imitative timber shore protection, carries pile spacing 0.5 ~ 1m.
Preferably, the low-pollution water in the main canal of described Landscape River can be introduced into bio-trickling filter processing unit, to dilute the high density village sanitary sewage and livestock breeding wastewater that import bio-trickling filter processing unit.
Preferably, the COD of the former water of described bio-trickling filter processing unit processes
crconcentration is 300 ~ 600mg/L.When importing village sanitary sewage and the livestock breeding wastewater COD of bio-trickling filter processing unit through Landscape River sewer
crduring excessive concentration, the low-pollution water introduced in the main canal of Landscape River dilutes by bio-trickling filter processing unit.
Preferably, the rainfall runoff low-pollution water carrying village pollution of area source imports the main canal of described Landscape River.
Preferably, described Landscape River sewer and the main canal of Landscape River are disposed in parallel in ring village Landscape River, and sewer is arranged on the inner side of the main canal of Landscape River.
Preferably, in the main canal of described Landscape River, be provided with waterpower plug flow device, control low-pollution water and flow with the speed of 0.1 ~ 0.2m/s in channel.
Preferably, the gate that described system also comprises and connects canal, the adjustment be arranged on the main canal of Landscape River connects canal; Low-pollution water, after the heavy water in the main canal of Landscape River, emergent purify further, enters original natural river through described gate, connection canal.
Compared with prior art, the present invention has following beneficial effect:
1) village sewage of the present invention is collected and is controlled to have in mind from regional pollution with treatment system, by completely isolated for village presence of pollution sources and control, avoids the pollutant effect periphery water surrounding that village produces, solves zonal environmental problem.
2) the Pollutant Treatment efficiency of native system is high, bio-trickling filter can will reach one-level B (GB18918-2002) level after sewage disposal, then by the cleaning action of Landscape River three grades of ecological revetments, low-pollution water is purified further, and final outflow water can be made to reach surface water III ~ IV class (GB3838-2002) level.
3) native system have employed less energy-consumption treatment facility--and bio-trickling filter, bio-trickling filter during-operation service only needs a hydraulic hoist, ton water consumption only 0.1kWh.
4) native system Landscape River form of fracture have employed multistage aquatic heavy water, the emergent collocation with pollutant fluxes cleaning action, add water body self-purification ability, and can fish and other animal predations be supplied, improve species diversity, enrich river channel ecology system.
5) native system laid down cost is lower.Ring village Landscape River can be transformed and form on farmland discharging-irrigating canal basis, original village, trickling filter treatment station laid down cost is cheap, without the need to laying sewage collecting pipe network in village, greatly reduce sewage collection system construction cost, be suitable for area, more remote poor countryside, be also suitable for the area that geologic condition should not lay pipe network.
6) bio-trickling filter of native system and channel waterpower plug flow device can realize automatic operation, and without the need to personal management, only need make regular check on, the area being easy to comparatively lack technician such as Rural areass popularizes.
7) in the form of landscape type shore protection that sewage collecting of the present invention and treatment system are taked, arbor, shrub, flowers, very water, submerged plant are interlocked, the process of sewage, improving of pumping equipment are organically combined with the lifting of environmental ecology view, meet the thought connotation of state socialism new countryside construction, solve rural areas dirty, random, difference while, perfect pumping equipment, change look of a village village looks, by building foot bridge, flowing water, other ecoscape, improve the humanities of Rural areas effectively.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is that the process flow sheet collected with treatment system is polluted in landscape type village of the present invention;
Fig. 2 is that village sewage is collected and treatment 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, edge, village peasant household, 6, Landscape River sewer, 7, the connection canal of band gate, 8, original natural river, 9, bio-trickling filter rising pipe, 10, timber or imitative timber, 11, gravel corner protector, 12, river bed, 13, embankment, 14, arbor, 15, reed or hay grass, 16, hornwort or water caltrop, 17, edge, village rural household's life sewage and livestock breeding wastewater discharge outlet, 19, communicating pipe, 20, cover plate.
Embodiment
Below in conjunction with embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make certain adjustments and improvements.These all belong to protection scope of the present invention.
embodiment 1
The landscape type village pollution collection that the present invention relates to and treatment system as shown in Figure 1, primarily of three parts composition, are that village sanitary sewage and livestock breeding wastewater collecting region, bio-trickling filter treatment station, low-pollution water are regulated and stored and landscape ecological treatment zone respectively.Sanitary sewage and the livestock breeding wastewater of village fringe region peasant household enter sewer nearby, the bio-trickling filter that sewer imports low operation energy consumption carries out biochemical treatment, sewage distributing canal and the main canal of low-pollution water process is comprised in ring village Landscape River, the pollution that inside, village produces is carried through rainfall runoff and is entered into the main canal of low-pollution water process, is removed by the self purification of water body in main canal and submerged plant, the absorption of emergent to pollutent.
The Environmental capacity object of native system is that the fecaluria that village rural household's life sewage and domestic livestock and poultry produce pollutes.Build ring village view channel along edge, village peasant household residential district, this channel utilizes original irrigation canal in village as far as possible, blowdown canal is transformed forms, and save laid down cost, specific form is shown in Fig. 2.Ring village Landscape River comprises the main canal 4 of Landscape River and Landscape River sewer 6.The sanitary sewage that edge, village peasant household 5 produces enters into Landscape River sewer 6 by effluent outfall 2 nearby, wrapper plate on sewer, avoids sewage peculiar smell to grow mosquitos and flies.Yu Huan village region topography lowest part builds a bio-trickling filter 1, and the sewage natural in Landscape River sewer 6 converges to bio-trickling filter 1 place, and bio-trickling filter only needs a hydraulic hoist can drip filter generation biochemical reaction, and operation energy consumption is lower.Bio-trickling filter 1 water outlet is drained in the main canal 4 of Landscape River through bio-trickling filter rising pipe 9, and the low-pollution water in main canal 4 also can be introduced sewer 6 and come diluting high-concentration sanitary sewage and livestock breeding wastewater (COD by bio-trickling filter 1
cr> 1000mg/L) to ensure bio-trickling filter running usefulness.The pollution that inside, village produces finally also is imported in the main canal 4 of Landscape River by rainfall runoff, store in the main canal of Landscape River together with the tail water of trickling filter process, some waterpower plug flow devices 3 are set in main canal, make low-pollution water in main canal be in the state circulated.Purified further low-pollution water by water heavy in main canal, emergent, the connection canal 7 eventually through band gate enters original natural river 8.The Pollutant Treatment efficiency of native system is high, bio-trickling filter can will reach one-level B (GB18918-2002) level after sewage disposal, then by the cleaning action of Landscape River three grades of ecological revetments, low-pollution water is purified further, and final outflow water can be made to reach surface water III ~ IV class (GB3838-2002) level.
The construction form schematic diagram of the section of the main canal of Landscape River of the present invention as shown in Figure 3, edge, village rural household's life sewage and livestock breeding wastewater are discharged into Landscape River sewer 6 by edge, village rural household's life sewage and livestock breeding wastewater discharge outlet 17, Landscape River sewer 6 are stamped cover plate 20, sewage in Landscape River sewer 6 is after bio-trickling filter process, by communicating pipe 19, the tail water after sewage works process is incorporated in the main canal of Landscape River, according to ordinary water level and flood stage situation, the complete ecological revetment plants configuration scheme that have employed submerged plant-emergent-shrub-arbor from water body to bank, hornwort or water caltrop 16 is planted in minimum one-level soil layer, can be used as the food of fish and zooplankton, second stage plantation reed or hay grass 15, all there is the function of good pollutant removal, especially the nitrogen pollutant in river can effectively be cut down, the third stage is embankment more than 13, view plant can be planted, as arbor, shrub etc. 14, the soil layer of every one-level utilizes geotextile to carry out isolating and is fixed with timber or imitative timber 10, river bed 12 spats adopts gravel 11, space is perched for hydrobiont provides.Low-pollution water slowly flows in river course, and water pollutant is by plant absorption, absorption, and fish, zooplankton predation, microbiological deterioration in water, the processes such as self purification of water body are cut down removal.
Landscape type village of the present invention is polluted to collect and is mainly contained with treatment system main points:
A. the form of fracture of ring village Landscape River take three grades stepped, inner side geotextile fixes soil layer, every level width 0.3 ~ 0.5m, adopts timber or imitative timber shore protection, carries pile spacing 0.5 ~ 1m.
B. Landscape River vegetation selection aspect, first step kind planting submerged plant, optional hornwort or water caltrop, purify water in water-bed enrichment pollutent, second stage plantation emergent, optional reed or hay grass, can adsorb further and enrichment hazardous and noxious substances, can according to view needs on third stage embankment, collocation plantation arbor, shrub or flowers etc., form in picturesque disorder ring village view " moat ".
C. in the main canal of ring village view, some waterpower plug flow devices are set, the speed of low-pollution water with 0.1 ~ 0.2m/s in channel is slowly flowed.
D. the former water of bio-trickling filter process should ensure COD
crconcentration 300 ~ 600mg/L range level, the sanitary sewage of high density and livestock breeding wastewater should be introduced low-pollution water and carry out dilution and can introduce bio-trickling treatment system.
E., when the main channel water amount of Landscape River is comparatively large or rainy season arrives, by regulating the timely overflow of gate connecting canal to natural river course, flood passage safety is ensured.
F. sewer collects edge, village sewage that peasant household produces, and village is inner without the need to laying collection pipe network, and by open channel, closed conduit various forms, wrapper plate on sewer, prevents sewage stink from faling apart, growing mosquitos and flies outward.
In sum, there is following problem in controlling for existing rural pollution: 1. the discharge of village sanitary sewage unstable, 2. village sewage conduit cost high, 3. raise Pollution from livestock and poultry on a small scale scattered and do not include that treatment system, 4. existing sewage treatment facility running usefulness are poor, 5. village pollution of area source is easily with rainwater runoff pollution periphery water surrounding in; The present invention innovates from thinking, regional rural comprehensive is polluted and produces, discharge, collect, process each link and bring in Environmental capacity system, the rural household's life sewage of high density and livestock breeding wastewater by the process of reinforced sewage treatment facility, carried the rainfall runoff low-pollution water of village pollution of area source by the river course process of ring village landscape, again by both running usefulness effectively optimizing sewage treatment facility, improve the mobility in ring village landscape river course simultaneously, reach good environmental benefit and ecological benefits.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (10)
1. landscape type village sewage is collected and a treatment system, and it is characterized in that, described system comprises ring village Landscape River and bio-trickling filter processing unit, and described ring village Landscape River comprises Landscape River sewer and the main canal of Landscape River; Village sanitary sewage and livestock breeding wastewater enter after Landscape River sewer through effluent outfall, and converge to bio-trickling filter processing unit and carry out biochemical reaction, the water outlet of bio-trickling filter processing unit enters the main canal of Landscape River; The section of the main canal of described Landscape River is taked multistage stepped, and on the ladder wherein below pollution water surfaces, plantation has submerged plant, the emergent of pollutant purification effect respectively.
2. landscape type village sewage according to claim 1 is collected and treatment system, it is characterized in that, the section of the main canal of described Landscape River take three grades stepped, lowest layer ladder plants planting submerged plant, middle layer ladder plants emergent, top ladder is planted arbor, shrub or flowers.
3. landscape type village sewage according to claim 2 is collected and treatment system, and it is characterized in that, described submerged plant comprises hornwort or water caltrop; Described emergent comprises reed or hay grass.
4. landscape type village sewage according to claim 1 is collected and treatment system, it is characterized in that, fix soil layer by geotextile inside three grades of ladders of the main canal of described Landscape River, every level width is 0.3 ~ 0.5m, adopt timber or imitative timber shore protection, carry pile spacing 0.5 ~ 1m.
5. landscape type village sewage according to claim 1 is collected and treatment system, it is characterized in that, low-pollution water in the main canal of described Landscape River can be introduced into bio-trickling filter processing unit, to dilute the high density village sanitary sewage and livestock breeding wastewater that import bio-trickling filter processing unit.
6. landscape type village sewage is collected and treatment system according to claim 1 or 5, it is characterized in that, the COD of the former water of described bio-trickling filter processing unit processes
crconcentration is 300 ~ 600mg/L.
7. landscape type village sewage according to claim 1 is collected and treatment system, and it is characterized in that, the rainfall runoff low-pollution water carrying village pollution of area source imports the main canal of described Landscape River.
8. landscape type village sewage according to claim 1 is collected and treatment system, and it is characterized in that, described Landscape River sewer and the main canal of Landscape River are disposed in parallel in ring village Landscape River, and sewer is arranged on the inner side of the main canal of Landscape River.
9. landscape type village sewage according to claim 1 is collected and treatment system, it is characterized in that, is provided with waterpower plug flow device in the main canal of described Landscape River, controls low-pollution water and flows with the speed of 0.1 ~ 0.2m/s in channel.
10. landscape type village sewage according to claim 1 is collected and treatment system, it is characterized in that, the gate that described system also comprises and connects canal, the adjustment be arranged on the main canal of Landscape River connects canal; Low-pollution water, after the heavy water in the main canal of Landscape River, emergent purify further, enters original natural river through described gate, connection canal.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108706740A (en) * | 2018-07-20 | 2018-10-26 | 上海交通大学 | A kind of technical method improving estuarine wetland denitrification efficiency |
| CN109763560A (en) * | 2019-03-12 | 2019-05-17 | 中铁四川生态城投资有限公司 | Terrace-type ecoscape lake and its construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870519A (en) * | 2010-05-06 | 2010-10-27 | 同济大学 | Nitrogen and phosphorus removal bio-trickling filter by artificially strengthening natural ventilation |
| CN102020395A (en) * | 2009-09-11 | 2011-04-20 | 上海浩为环境工程有限公司 | Decentralized sewage treatment method |
| CN102561254A (en) * | 2012-01-12 | 2012-07-11 | 上海交通大学 | River course ecological system for treating non-point source low-pollution water |
| CN103161215A (en) * | 2011-12-08 | 2013-06-19 | 中国科学院生态环境研究中心 | Design and construction of village ecotype drainage system |
| CN103466899A (en) * | 2013-09-30 | 2013-12-25 | 武汉大学 | Blocking and controlling system for non-point source pollution in middle water network zone and construction method thereof |
| CN104817180A (en) * | 2015-04-02 | 2015-08-05 | 苏州农业职业技术学院 | Three-level prevention and control method of non-point source pollution in natural villages on lake island shore |
-
2015
- 2015-08-07 CN CN201510483542.3A patent/CN105110474B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020395A (en) * | 2009-09-11 | 2011-04-20 | 上海浩为环境工程有限公司 | Decentralized sewage treatment method |
| CN101870519A (en) * | 2010-05-06 | 2010-10-27 | 同济大学 | Nitrogen and phosphorus removal bio-trickling filter by artificially strengthening natural ventilation |
| CN103161215A (en) * | 2011-12-08 | 2013-06-19 | 中国科学院生态环境研究中心 | Design and construction of village ecotype drainage system |
| CN102561254A (en) * | 2012-01-12 | 2012-07-11 | 上海交通大学 | River course ecological system for treating non-point source low-pollution water |
| CN103466899A (en) * | 2013-09-30 | 2013-12-25 | 武汉大学 | Blocking and controlling system for non-point source pollution in middle water network zone and construction method thereof |
| CN104817180A (en) * | 2015-04-02 | 2015-08-05 | 苏州农业职业技术学院 | Three-level prevention and control method of non-point source pollution in natural villages on lake island shore |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108706740A (en) * | 2018-07-20 | 2018-10-26 | 上海交通大学 | A kind of technical method improving estuarine wetland denitrification efficiency |
| CN108706740B (en) * | 2018-07-20 | 2021-06-29 | 上海交通大学 | Technical method for improving denitrification efficiency of estuary wetland |
| CN109763560A (en) * | 2019-03-12 | 2019-05-17 | 中铁四川生态城投资有限公司 | Terrace-type ecoscape lake and its construction method |
| 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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