CN100402447C - Ecological treatment method for sewage subsidiary region and equipment - Google Patents

Ecological treatment method for sewage subsidiary region and equipment Download PDF

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Publication number
CN100402447C
CN100402447C CNB2006100107860A CN200610010786A CN100402447C CN 100402447 C CN100402447 C CN 100402447C CN B2006100107860 A CNB2006100107860 A CN B2006100107860A CN 200610010786 A CN200610010786 A CN 200610010786A CN 100402447 C CN100402447 C CN 100402447C
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China
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water
unit
motorway
plant
processing unit
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Expired - Fee Related
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CNB2006100107860A
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CN1830843A (en
Inventor
陈汝才
邓辅唐
卿小燕
邓辅商
吴广
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Yunnan Jinye Ecological Construction Group Co., Ltd.
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Ecological Technology Research Co Ltd Yunnan Kingyear Ecological Constructio
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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 present invention relates to a method for the ecological treatment of domestic sewage in highway dependent areas (toll stations, service areas and monitoring centers) and a facility thereof, which belongs to the technical field of environmental protection engineering and water treatment. The method comprises the following main treatment steps: (1) putting domestic sewage in a septic tank, and arranging a fine-mesh fence in the septic tank for the primary treatment to remove impurities and suspended substances; (2) making the domestic sewage flow in a regulation pool for regulating flow speed, and further treating the solid suspended substances in the water; (3) making the water treated in the previous step enter a composite ecological soil treating unit through a water-distributing pipe for the second stage purifying treatment; (4) making the purified water flow into a water collecting tank through a water distributing ditch, and carrying out green reuse by using a water pump. A degreasing device can be added to treat the sewage water according to the needs of the service areas after the second step is finished. The technology of the present invention has the characteristics of small occupying area, high purification efficiency, high system stability, simple treating technology and low investment cost and operation cost. The treated water can reach the standards of reuse water, and can be used for green irrigation or vehicle cleaning. Simultaneously, since the whole technological process belongs to a buried type, green landscape plants can be planted on the surface of the ground to reduce the damage of highway development to natural environment.

Description

A kind of motorway satellite regions ecological treatment method for sewage and facility
Technical field:
The present invention relates to a kind of motorway sewage disposal technology and environment-friendly engineering, and especially the Ecological Disposal technology of carrying out at motorway satellite regions (as service station, charge station, Surveillance center etc.) sanitary sewage characteristics belongs to field of environmental engineering.
Technical background: expressway construction was seldom handled and reuse the sanitary sewage of satellite regions along the line except that afforestation project in the past, and great majority directly discharge.In recent years, along with the raising of governments at all levels to highway environment protection construction understanding, existing minority motorway, begin rest room along the line, service area sanitary sewage are handled as the peaceful motorway in Lu in Jiangsu etc., but mainly still continue to use traditional biological contact oxidation process, activated sludge process etc., investment is big, runs and manage and protect the high and operation inconvenience of expense.Few owing to the motorway water yield simultaneously, features such as water quality is unstable, water yield fluctuation changes greatly, unattended, and be difficult to find suitable treatment facility.
Summary of the invention:
Purpose of the present invention mainly solves present motorway life satellite regions (service station, charge station, Surveillance center) domestic sewage processing system fluctuation of service, cost and working cost problem of higher provide a kind of sanitary sewage disposal efficient high combined type soil ecology treatment technology.This method is that a kind of natural, ecological purifies the small-scale sewage disposal technology that combines with manual process,
The technical scheme of motorway satellite regions sanitary sewage ecological treatment method of the present invention is: main treatment step is:
(1) earlier sanitary sewage also is provided with the detailed catalogue barrier therein via septic tank, removal foreign material, suspended substance are handled for the first time,
(2) flow into equalizing tank by sewer line then and carry out the flow velocity adjusting, and again the suspended solid in the water is handled,
(3) water of handling through upper level enters combined type soil ecology processing unit by water distribution pipe and carries out the secondary purification processing,
(4) import water collecting basin through the water after purifying by distributing flue at last, utilize water pump to afforest reuse.
Described sewage also can be according to the service area needs after (2) procedure is finished, and add except that grease equipment to handle again.
The entire sewage treatment facility comprises septic tank unit, detailed catalogue grid, equalizing tank unit, distributing flue, combined type soil ecology processing unit and water collecting basin unit, its each unitary water-in of above-mentioned sewage disposal device and water outlet have certain discrepancy in elevation, entire equipment need not other any mechanical power, water can gently flow through above-mentioned each processing unit in certain setting-up time, final gravity flow arrives the water collecting basin unit; The detailed catalogue grid is housed in the septic tank unit, the grid pore size distribution of detailed catalogue grid is placed in water inlet, septic tank unit and water outlet place respectively with two groups, distributing flue is connected each pond of total system mutually, being filled with in the canal for water distribution is mixed filler and is implanted with the described septic tank of waterplant, equalizing tank unit, unit, combined type soil ecology processing unit and water collecting basin unit equipment in conjunction with the view kind preferably all is positioned under the face of land, the water collecting basin unit is equipped with lift pump, is used for the middle water that water collecting basin was handled is extracted into ground reuse or greenery patches sprinkling irrigation; Combined type soil ecology processing unit has impervious barrier, water distribution layer, main reaction layer, taste removal filter layer, pedosphere, six layers of structure of layer of plants in regular turn, and the main reaction layer is by the active filler of forming through the biological inoculum and the biologic packing material of engineering domestication cultivation; Pedosphere is made of detritus soil, has soil permeability preferably, as the matrix of plant-growth, plants and is implanted with plant; Water distribution layer is built collection mutually by gravel not of uniform size and is formed; Water distributor is distributed in sewage in the water distribution layer equably, has aperture on the water distributor; Active filler in the combined type soil ecology processing unit mainly is made up of for four layers gravel, biologic packing material, engineering strain and detritus soil, and kind is implanted with plant on the pedosphere top layer, and plant absorbs the N in the soil, P organism.Anticlogging back flushing equipment is housed in combined type soil ecology processing unit, and back flushing equipment comprises backwash tube; In the combined type soil ecology processing unit the plant of matrix section plantation mainly be view and admire by having necessarily, economic worth plant, the comparatively flourishing different combinations of plant of root system form; The middle water that flows to water collecting basin after the processing can be used for green area irrigation or carwash, and its entire treatment system all is positioned under the face of land, and the plant that the ground matrix section is strong by the soil pick-up ability, ornamental value is high covers.
Principle of work: sanitary sewage at first also is provided with barrier therein via septic tank, removal foreign material, suspended substance are handled for the first time, flow into equalizing tank by sewer line then and carry out the flow velocity adjusting, and again the suspended solid in the water is handled, and waste-oil scavenger is set according to the needs of service area, 95% suspended solid in the water can be removed by pre-treatment.Water through one-level is handled enters combined type soil ecology processing unit by distributing flue and water distribution pipe and carries out the secondary purification processing, imports water collecting basin through the water after purifying at last, utilizes water pump to afforest reuse.
This sanitary sewage disposal facility comprises septic tank, detailed catalogue grid, equalizing tank, distributing flue, combined type soil ecology processing unit, reuse and greenery patches irrigating unit.The detailed catalogue grid: the grid pore size distribution is placed in the septic tank entery and delivery port respectively with two groups.Equalizing tank: the equalizing tank specification is looked design day maximum throughput affirmation, is reverse taper at the bottom of the pond; Adopt the common brick masonry, do waterproof; The water outlet absolute altitude is with the border situation is fixed factually.95% left and right sides suspended solid (then SS) is held back by this system in the sanitary sewage, and remaining 5% left and right sides suspended solid (then SS) is removed in distributing flue and soil system.Distributing flue: water distribution width of the channel 500mm, dark 600mm does WATER REPELLENT, can be used as the connection canal of each system, also can be used alone as water collecting basin and be connected canal with combined type soil ecology processing unit.Be filled with the filler and of being mixed in the channel in conjunction with the view planting aquatic plants.The soil treatment unit: this unit is one of core of total system, and main physical, chemical transformation all take place in this unit.BOD in the sanitary sewage 5, COD MN, indexs such as T-N, T-P, intestinal bacteria are through obviously descending behind this unit.Simultaneously, about 80% unwanted bacteria is detained, is eliminated in the sanitary sewage.Reuse and greening unit: mainly be by water collecting basin, utilize fresh water pump or utilize flush the toilet water reservoir or be directly used in the greening water of water reuse that the physical features discrepancy in elevation will be after treatment.By the middle water that Treatment for Reuse is crossed, realize saving clean water resources, reach the purpose of " zero release ".Soil combined type processing unit comprises 6 layers of structure, comprises impervious barrier, water distribution layer, main reaction layer, taste removal filter layer, pedosphere, layer of plants.The soil treatment unit is followed successively by layer of plants from top to bottom, improve the soil layer, taste removal filter layer, main reaction layer, water distribution layer, impervious barrier.It is that control sewage directly down oozes that impervious barrier, the impervious barrier that is positioned at lowermost layer mainly act on, and directly enters at the sewage of this layer through the distribution reservoir processing, has formed the highest place of the flow of water at this layer.Water distribution layer is made up of gravel, and is main with being support whole unit water distribution uniformity, and the space of growth is provided for the microorganism of carrier suspension growth as microbial film.The main reaction layer is made up of biological inoculum and biologic packing material that the domestication through engineering is cultivated, and its effect mainly is to stop that the suspended substance in the sewage enters the main reaction layer, and responding layer and water distribution layer constitute unitary preliminary oxygen and the anaerobic reaction layer of holding concurrently of soil treatment together thus.The taste removal filter layer plays the effect of removing peculiar smell and stops that simultaneously edaphic earth enters the main reaction layer with rainwater.Pedosphere is made of detritus soil, has soil permeability preferably, as the matrix of plant-growth.Layer of plants, select for use have necessarily view and admire, different combinations of plant that the economic worth root system of plant is comparatively flourishing form, these plants are because well developed root system gos deep into soil, absorb nitrogen, the phosphoric of plant-growth necessity by root system, and reach the purpose of further purifying waste water.
Combined type soil ecology processing unit is by the oxygen of secreting of root system of plant simultaneously, solved the difficulty that present buried sewage treatment process can not solve aerobic degradation, use the problem of the reoxygenation of ecological way underground unit first, increase the operating performance of combined type soil ecology processing unit.
Combined type soil ecology processing unit can possess backwashing function simultaneously, can effectively prevent system jams.
Combined type soil ecology processing unit of the present invention top pedosphere can regularly turn over does improvement (upgrade or safeguard needs according to plant), with the negative impact of decontamination retentate to system.
Sewage treatment technology of the present invention is based on ecological principle, by physical adsorption, decomposition and the bio-absorbable utilization of soil and biologic packing material to sewage disposal, a kind of brand-new combined type soil ecology sewage disposal technology is proposed, its initial cost is low, energy consumption is few and reclaimed water reuse is main characteristic, can be widely used in the processing of the point-source pollution far away, can save sewage and focus on needed a large amount of handling charges from the city; In the water rate of recovery reach more than 80%, water quality standard during water quality satisfies can be used for greening, carwash etc., alleviates the insufficient contradiction of water resources to a certain extent, owing to it is positioned at undergroundly, sewage disposal and landscape planting can be combined, and surrounding environment is not had secondary influence.
Description of drawings:
Fig. 1 sewage soil ecology of the present invention treatment system process flow sheet.
Fig. 2. be motorway sewage treatment facility example structure synoptic diagram of the present invention.The structural representation of motorway sewage treatment facility of the present invention.Among the figure: the 10-septic tank; The 20-equalizing tank; 30-combined type soil ecology processing unit; The 40-water collecting basin.
Fig. 3 is the structural representation of each layer of combined type sewage soil ecology processing unit of the present invention (30).Among the figure, the 1-impervious barrier; The 2-water distribution layer; 3-main reaction layer; 4-taste removal filter layer; The 5-pedosphere; The 6-layer of plants; 7-goes out water channel; 8-water outlet drain cover plate.
Embodiment:
Embodiment 1: this treatment system has been used the sanitary sewage disposal of the little motorway satellite regions of full of beard, and 200 people's of Surveillance center sanitary sewage produces sanitary sewage and be about 60 cubic metres Surveillance center's day of 200 people, designs day to handle 100 cubes of sink drainages for this reason.Sewage flows into septic tank (10) by water channel, and the specification length and width height of septic tank (10) is respectively 5.8m * 2.9m * 2.35m, and septic tank (10) tentatively plays excrement slag, fermentation and the effect of precipitation worm's ovum of holding back.The water of handling via septic tank is respectively 5mm by two groups of apertures, 2mm, 1mm, 0.5mm, 0.1mm the detailed catalogue barrier import the equalizing tank (20) of 6.7m * 2m, flow velocity is played certain regulating effect, sewage enters the combined type soil ecology processing unit (30) of two 10m * 2m respectively then, the water quality of sewage disposal this moment water quality after testing reaches national reclaimed water standard (CJ25.1-89), import 6m * 4m water collecting basin (40) again through the water of handling the standard that reaches, the water that concentrates on water collecting basin is transported to the green land or the extraction that need water through water pump and is used for carwash etc.
Soil combined type processing unit (30) comprises 6 layers of structure, and the lowest layer is an impervious barrier, and the superiors are layer of plants.Impervious barrier adopts concrete spouting to form, and its antiseepage bed thickness is 200mm.Water distribution layer is built collection mutually by gravel not of uniform size, a dog stone and is formed, and is evenly distributed with the water pipe that diameter is a 110mm rice in the middle of the water distribution layer, and water pipe evenly injects water distribution layer with sewage.Bacteria agent and biologic packing material that the main reaction layer is cultivated by the domestication through engineering are formed, the biological inoculum that the engineering domestication is cultivated is that the dominant microflora that company screens and tames out comprises multiple effective microbes such as milk-acid bacteria, yeast, actinomycetes, additive capacity is 1000mg/L, biologic packing material is active haydite, and throwing in thickness is set is 100mm.
The taste removal filter layer is made up of gac, plays the effect of removing peculiar smell and stops that simultaneously edaphic earth enters the main reaction layer with rainwater.Pedosphere is made of detritus soil, has soil permeability preferably, as the matrix of plant-growth.Layer of plants is selected Canna generalis Bailey, Flower of Hairyfruit Musella etc. for use, the comparatively flourishing different combinations of plant of this root system of plant form, these plants are because well developed root system, go deep into soil, absorb nitrogen, the phosphoric of plant-growth necessity by root system, have and necessarily view and admire and economic worth, simultaneously combined type soil treatment unit underground part is secreted oxygen, increase this unitary treatment effect.
Equalizing tank (20) is a reverse taper at the bottom of the pond, and equalizing tank is done WATER REPELLENT; The discrepancy in elevation was set to 10cm between each unit of system handles of the present invention comprised, guaranteed under the unpowered condition of current smoothly through each processing unit.
The water that soil combined type processing unit of the present invention (30) is handled can flow to next treatment system water collecting basin (40) unit by going out water channel (7).

Claims (9)

1. motorway satellite regions sanitary sewage ecological treatment method is characterized in that treatment step is:
(1) earlier sanitary sewage also is provided with the detailed catalogue barrier therein via septic tank (10), removal foreign material, suspended substance are handled for the first time,
(2) flow into equalizing tank (20) by sewer line then and carry out the flow velocity adjusting, and again the suspended solid in the water is handled,
(3) water of handling through upper level enters combined type soil ecology processing unit (30) by water distribution pipe and carries out the secondary purification processing,
(4) import water collecting basin (40) through the water after purifying by distributing flue at last, utilize water pump to afforest reuse.
2. motorway satellite regions sanitary sewage ecological treatment method according to claim 1 is characterized in that described sewage after (2) procedure is finished, also can be according to the service area needs, and add again except that grease equipment and handle.
3. according to claim 1 or the used facility of 2 described motorway sanitary sewage ecological treatment methods, it is characterized in that the entire sewage treatment facility comprises septic tank (10) unit, the detailed catalogue grid, equalizing tank (20) unit, distributing flue, combined type soil ecology processing unit (30) and water collecting basin (40) unit, its each unitary water-in of above-mentioned sewage disposal device and water outlet have certain discrepancy in elevation, entire equipment need not other any mechanical power, water can gently flow through above-mentioned each processing unit in certain setting-up time, final from being flowed to water collecting basin (40) unit.
4. the used facility of motorway sanitary sewage ecological treatment method according to claim 3, it is characterized in that in septic tank (10) unit detailed catalogue grid being housed, the grid pore size distribution of detailed catalogue grid is placed in septic tank (10) water inlet, unit and water outlet place respectively with two groups, distributing flue is connected each pond of total system mutually, be filled with in the canal for water distribution and be mixed filler and be implanted with waterplant in conjunction with the view kind, described septic tank (10), unit equalizing tank (20) unit, combined type soil ecology processing unit (30) and water collecting basin (40) unit equipment preferably all are positioned under the face of land, water collecting basin (40) unit is equipped with lift pump, is used for the middle water that water collecting basin (40) was handled is extracted into ground reuse or greenery patches sprinkling irrigation.
5. the used facility of motorway sanitary sewage ecological treatment method according to claim 3, it is characterized in that combined type soil ecology processing unit (30) has impervious barrier (1), water distribution layer (2), main reaction layer (3), taste removal filter layer (4), pedosphere (5), (6) six layers of structure of layer of plants in regular turn, main reaction layer (3) is by the active filler of forming through the biological inoculum and the biologic packing material of engineering domestication cultivation; Pedosphere (5) is made of detritus soil, has soil permeability preferably, as the matrix of plant-growth, plants and is implanted with plant; Water distribution layer (2) is built collection mutually by gravel not of uniform size and is formed; Water distributor is distributed in sewage in the water distribution layer equably, has aperture on the water distributor.
6. the used facility of motorway sanitary sewage ecological treatment method according to claim 3, it is characterized in that the active filler in the combined type soil ecology processing unit (30) mainly is made up of for four layers gravel, biologic packing material, engineering strain and detritus soil, kind is implanted with plant on pedosphere (5) top layer, and plant absorbs the N in the soil, P organism.
7. the used facility of motorway sanitary sewage ecological treatment method according to claim 6 is characterized in that anticlogging back flushing equipment is housed in combined type soil ecology processing unit (30), and back flushing equipment comprises backwash tube.
8. the used facility of motorway sanitary sewage ecological treatment method according to claim 5, the plant that it is characterized in that matrix section plantation in ground in the combined type soil ecology processing unit (30) mainly be view and admire by having necessarily, economic worth plant, the comparatively flourishing different combinations of plant of root system form.
9. the used facility of motorway sanitary sewage ecological treatment method according to claim 3, the middle water that flows to water collecting basin after it is characterized in that handling can be used for green area irrigation or carwash, its entire treatment system all is positioned under the face of land, and the plant that the ground matrix section is strong by the soil pick-up ability, ornamental value is high covers.
CNB2006100107860A 2006-03-31 2006-03-31 Ecological treatment method for sewage subsidiary region and equipment Expired - Fee Related CN100402447C (en)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101200341B (en) * 2007-10-26 2010-06-09 江苏省交通科学研究院股份有限公司 High road service area sewage water treating process and dynamic membrane bioreactor
CN101659501B (en) * 2009-04-07 2011-10-05 环境保护部华南环境科学研究所 Artificial ecological wastewater treatment unit in expressway service areas

Citations (2)

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Publication number Priority date Publication date Assignee Title
CN2547722Y (en) * 2002-05-29 2003-04-30 周一凡 Community domestic sewage treating and reusing apparatus
CN1524810A (en) * 2003-02-28 2004-09-01 杭玉君 Method for cyclically utilizing middle water of public toilet sewage and specialized equipment therefor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2547722Y (en) * 2002-05-29 2003-04-30 周一凡 Community domestic sewage treating and reusing apparatus
CN1524810A (en) * 2003-02-28 2004-09-01 杭玉君 Method for cyclically utilizing middle water of public toilet sewage and specialized equipment therefor

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