CN101585647A - Capillary tube compound sewage treatment device - Google Patents

Capillary tube compound sewage treatment device Download PDF

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Publication number
CN101585647A
CN101585647A CNA2009100171023A CN200910017102A CN101585647A CN 101585647 A CN101585647 A CN 101585647A CN A2009100171023 A CNA2009100171023 A CN A2009100171023A CN 200910017102 A CN200910017102 A CN 200910017102A CN 101585647 A CN101585647 A CN 101585647A
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China
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sewage treatment
kapillary
water
tank
cell
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CNA2009100171023A
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Chinese (zh)
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王军
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王军
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Priority to CNA2009100171023A priority Critical patent/CN101585647A/en
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Abstract

The invention relates to a capillary tube compound sewage treatment device, which comprises a pretreatment device buried underground, a capillary tube wetting type sewage treatment device and a recycling water tank, and is characterized in that: the pretreatment device comprises a grill tank, an anaerobic tank, a sedimentation tank and a water collecting tank which are communicated through a PVC pipe; the capillary tube wetting type sewage treatment device comprises a tank body and a secondary filtering layer on peripheries of a water inlet pipe and a water outlet pipe on the upper part of the tank body; and a sand and clay layer, a pebble layer, a water distributing pipe network, an active filtering layer, a gravel layer and surface vegetation are orderly arranged from the bottom of the tank body to the upside. The capillary tube compound sewage treatment device has reasonable structure and no energy consumption, does not influence the cultivation on soil of earth surface, does not generate odor, and is convenient to popularize and promote. The disposable investment is only one fourth to one third of the conventional secondary treatment method, and the operating cost is less than one fifth, and even zero. The outlet water quality meets the grade 1 standard A of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002) and the requirement of Water Quality Standard for Urban Miscellaneous Water Consumption (CJ25.1-89); and the outlet water is used for irrigating lawn, farmland and the like.

Description

A kind of kapillary compound sewage treatment device
Technical field
The invention belongs to sewage disposal device, is a kind of kapillary compound sewage treatment device specifically.
Background technology
The processing of domestic sewage in rural areas by using has become one of outstanding environmental problem of Chinese society doctrine new countryside construction with utilization, and in recent years, country has dropped into the construction that a large amount of financial resources are carried out the domestic sewage in rural areas by using treatment facility.Be subjected to the influence of the factors such as the level of economic development, Infrastructure, management system and ability in rural area, the sanitary sewage disposal facility ubiquity operation ratio of having built up is low, working cost is high and one-time investment is excessive, and construction cost is crossed high phenomenon.In addition, though the draining after the existing technical finesse can reach " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) secondary standard requirement substantially, but can not satisfy " miscellaneous domestic water quality standard " requirement (CJ25.1-89), be difficult to realize the sewage recycling utilization, form the waste of regenerated water source, can't effectively solve the shortage of water resources and the water environment pollution problem of sewage treatment facility and neighboring area thereof.
Summary of the invention
In order to overcome the deficiency of existing sewage disposal technology, the invention provides a kind of small-sized sewage treatment unit---kapillary compound sewage treatment device.
It is sparsely populated to The present invention be directed to people in the countryside; quantity of wastewater effluent reaches the present situation away from the municipal drainage pipe network less; be vast Rural areas; the wilderness area; the scenic spot; independent communal facility (freeway toll station; holiday village etc.) and other custom-designed waste disposal plants in dispersion population center away from city planting ductwork; it is little to have floor space; treatment effect is good; the advantage that capital construction and working cost are low; principal pollutant COD in its draining; BOD; SS; ammonia nitrogens etc. can satisfy " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level A standard and " miscellaneous domestic water quality standard " (CJ25.1-89) requirement; has denitrogenation dephosphorizing function preferably simultaneously; when effectively solving the water environment pollution problem; improve water utilization rate, effectively improved the quality of water environment and the shortage of water resources problem of treatment unit neighboring area.
Technical scheme of the present invention, comprise that the pond body is the underground type skeleton construction, the preembedded pvc pipe is communicated with between the body of pond pretreatment unit, kapillary moisture type waste disposal plant and reuse pool three parts is characterized in that pretreatment unit comprises grating tank, anaerobe pond, settling tank and the water collecting basin that is communicated with successively by pvc pipe; Kapillary moisture type waste disposal plant comprises the filter bed of essence around cell body and cell body top water inlet pipe and the rising pipe, and is followed successively by sand and clay seam, pebble bed, and the corresponding water distribution pipe network of cell body size, active filtering layer, metalling, clay seam and surface vegetation from cell body bottom to top layer.
Above-mentioned active filtering layer by sand and clay, cinder, wood chip, empty metal tin by 10: 8: 2: 1 mixes, and thickness is 500~1000mm, and empty metal tin is a right cylinder, diameter 60~80mm, height 120~150mm.
Above-mentioned pebble bed thickness is in 200~300mm scope, and the cobble yardstick of laying is Φ 20~80mm.
Above-mentioned water distribution pipe network is the tubular body arranged inside parallel or staggered connection in the pipe, that some apertures are arranged at top, its caliber D=50~75mm.
Above-mentioned cell body is made by plastic pvc plate or reinforced concrete cast-in-situ plate.
The present invention is rational in infrastructure, basic non-power consumption, and cost is low, and is easy to implement, is beneficial to penetration and promotion.Whole device is embedded in underground, and it is little influenced by external environmental condition, and can move as usual winter, does not influence the use of surface soil, and the surface also can be in conjunction with landscape planting, and turf plant is beautified the environment; Smell is not distributed in the airtight operation of total system.One-time investment only is 1/4~1/3 of a conventional second-stage treatment method, and it is processed conventionally 1/5 that working cost is lower than, even do not have expense, and both alternative conventional processing can be used as the advanced treatment of wastewater technology after the conventional processing again.Principal pollutant COD, BOD, SS, ammonia nitrogen etc. all can satisfy " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level A standard in the draining after the processing, " miscellaneous domestic water quality standard " requirement (CJ25.1-89) has good denitrogenation dephosphorizing function simultaneously.Therefore realize that to abundant the purifications He Shui of sanitary sewage, fertile resource circulation utilization reach the purpose that the processing of sewage combines with utilization, water outlet can be used for watering lawn, farmland etc., for the water-deficient area provides second water source.
Description of drawings
Fig. 1 is an overall structure synoptic diagram of the present invention.
Fig. 2 is a basic structure synoptic diagram of the present invention.
Fig. 3 is a water distributor web frame synoptic diagram of the present invention.
Wherein, 1, pretreatment unit, 2, kapillary moisture type waste disposal plant, 3, reuse pool, 4, grating tank, 5, the anaerobe pond, 6, settling tank, 7, water collecting basin, 8, cell body, 9, water inlet pipe, 10, filter bed of essence, 11, sand and clay seam, 12, pebble bed, 13, the water distribution pipe network, 14, active filtering layer, 15, metalling, 16, clay seam, 17, surface vegetation, 18, plastics tubing, 19, aperture.
Embodiment
As Fig. 1, Fig. 2, the present invention includes the pond body and be pretreatment unit 1, kapillary moisture type waste disposal plant 2 and reuse pool 3 three parts that pre-buried pvc pipe is communicated with between underground type skeleton construction, pond body, it is characterized in that pretreatment unit comprises grating tank 4, anaerobe pond 5, settling tank 6 and the water collecting basin 7 that is communicated with successively by pvc pipe; Kapillary moisture type waste disposal plant 2 comprises cell body 8 and cell body 8 top water inlet pipes 9 and filter bed of essence 10 around the rising pipe, and is followed successively by sand and clay seam 11, pebble bed 12, and the corresponding rectangular cloth grids 13 of cell body 8 sizes (as Fig. 3), active filtering layer 14, metalling 15, clay seam 16 and surface vegetation 17 from cell body 8 bottoms to top layer.Wherein filter bed of essence 10 is mixed with 3: 1 by cinder and wood chip.Above-mentioned settling tank 6 filling plastics tubings 18, model D35, thickness of pipe 0.5mm.
The mechanism of action of above-mentioned pretreatment unit 1 comprises effects such as mechanical retention, acidication, physics sedimentation.Floating matter in the sewage mainly is to be held back removal by the grizzly bar of grid in grating tank 4; The acidication effect by anaerobion in anaerobe pond 5 of larger molecular organics in the sewage is converted into the small organic molecule that can be absorbed by microorganism; Suspended substance in the sewage separates with sewage by the physics sedimentation in settling tank 6 with mud.The part pollutent is removed in pretreatment unit in the sewage, and water quality is purified.
The mechanism of action of above-mentioned kapillary moisture type waste disposal plant 2 comprises that the filtration of soil is held back, the effects such as picked-up of physics and chemisorption, decomposition, bio-oxidation and microorganism.Be evenly distributed on the active filtering layer 14 via water inlet pipe 9 and by rectangular cloth grid 13 through pretreated sewage, active filtering layer 14 suspends being in the sewage and the organic substance of dissolved state is retained down, form one deck film of microorganism abrim on the surface of soil particle, organism in the absorption sewage, and utilize airborne oxygen, under the effect of aerobic bacteria, the organism in the sewage is changed into inorganics, as CO 2, NH 4 +, nitrate and phosphoric acid salt etc.
The active filtering layer 14 of above-mentioned peculiar set-up by sand and clay, cinder, wood chip, empty metal tin by 10: 8: 2: 1 mixed forms, empty metal tin is a right cylinder, diameter 60~80mm, height 120~150mm, active filtering layer 14 thickness are generally 500~1000mm by the decision of water inlet Pollutant levels.Active filtering layer 14 organic content are abundant, the crumb structure prosperity, and infiltration efficient height, capillary action is strong, and loading capacity is big, and permeability is good; Simultaneously, be rich in the necessary energy of microorganism and nutritive substance,, therefore have higher biological activity for soil microorganisms provides good existence developing environment.
The thickness of above-mentioned pebble bed 12 is in 200~300mm scope, and the cobble yardstick of laying is Φ 20~80mm, and its effect is the active filtering layer 14 of support.
Above-mentioned rectangular cloth grid 13 is tubular body arranged insidies that some apertures 19 are arranged at parallel or staggered connection in the rectangular pipe, top, its caliber D=50~75mm.
Above-mentioned aperture 19 is holes downward 45 ° along both sides, and the transverse pitch of aperture 19 is 30~50mm, and the aperture is 3~6mm.
Metalling 15 (thickness 100~the 200mm of above-mentioned water distribution pipe network 13 tops, the also available cobble of rubble replaces) and the combination of the clay seam 16 of top, sewage is risen along kapillary, by physics detention, a series of effects such as absorption absorption, microbiological degradation and plant absorbing of clay seam, remove the organism in the sewage.Wherein microbic activity has a very important role to the removal of organic pollutant, and being decomposed under action of microorganisms by the organic pollutant of detention and absorption changes into inorganics.
The absorption of 17 pairs of nutritive elements of surface vegetation at top is one of important channel of sewage purification.Nitrogen in the sewage, phosphorus etc. are absorbed and used by root system of plant as the necessary for plant growth nutrient, are moved out of system during mowing, reach the purpose of denitrogenation dephosphorizing, and the removal amount that can make nutritive element that often cuts the grass on a lawn reaches maximum.
The cell body 8 of whole kapillary moisture type waste disposal plant is the plastic pvc plate, or the reinforced concrete cast-in-situ plate is made.Also can lay double-deck waterproofing membrane in the cell body 8, can prevent from that sewage from permeating the ground to cause secondary pollution.Above-mentioned cell body 8 is directly to use the displaced cell body of multilayer flashing film.
Consider to reduce cost, the also available plastic pvc plate of the cell body of above-mentioned pretreatment unit 1, or the inner reinforced concrete cast-in-situ plate that lays double-deck waterproofing membrane makes, or directly use the displaced cell body of multilayer flashing film.
The filter bed of essence 10 of kapillary moisture type waste disposal plant 2 outlets, further the pollutent in the planar water makes water outlet limpid.
Non-volatile solids material in the sewage usually can stop up the space between grogs, thereby influences the speed of sewage permeation, hinders entering of air, at this moment because the animal in the soil navigates between grogs as worm and nematode etc., can make loosing soil.Sewage is purified through biotic synergism in physics, chemical action and the soil ecosystem of above mechanical retention, anaerobic hydrolysis-acidification, physics sedimentation and soil, enters reuse pool 3 backs by rising pipe and stores reuse.
Embodiment 1
Build the pond body of underground type skeleton construction, the grating tank length 5m of pretreatment unit wherein, width 3.5m, anaerobe pond length 16m, width 4.5m, settling tank length 3m, width 2.5m, the length 2.5m and the width of water collecting basin are 1m; The length of kapillary moisture type waste disposal plant is 26m, and width is 4.5m; The length and the width of reuse pool are 3.5m; The underlayer thickness of all pond bodies or cell body is 0.3m, lays double-deck waterproofing membrane in the cell body, and pool wall thickness is 0.25m.
Be communicated with grating tank, anaerobe pond, settling tank and water collecting basin and kapillary moisture type waste disposal plant and reuse pool successively with pvc pipe.
The filling model is that D35, thickness of pipe are the plastics tubing of 0.5mm in settling tank.
Lay sand and clay seam, pebble bed successively at the cell body bottom of kapillary moisture type waste disposal plant, with the corresponding water distribution pipe network of cell body size, active filtering layer, metalling, clay seam and at the top turf plant.Wherein, active filtering layer by sand and clay, cinder, wood chip, empty metal tin by 10: 8: 2: 1 mixed forms (wherein the sand of active filtering layer and clay form with 2: 3 mixed), and empty metal tin is a right cylinder, diameter 60mm, height 120mm, the thickness of active filtering layer is 1000mm; The thickness of pebble bed is 250mm, and the cobble yardstick of laying is Φ 20~80mm; Select the rectangular cloth grid, its caliber is 70mm, downward 45 ° of the apertures on the pipe network along both sides, and the transverse pitch of aperture is 40mm, the aperture is 6mm; Metalling thickness is 150mm.
When sewage entered pretreatment unit, the floating matter in the sewage was held back removal by the grizzly bar of grid in grating tank; The acidication effect by anaerobion in the anaerobe pond of larger molecular organics in the sewage is converted into the small organic molecule that can be absorbed by microorganism; Suspended substance in the sewage separates with sewage by the physics sedimentation in settling tank with mud.The part pollutent is removed in pretreatment unit in the sewage.
Be evenly distributed in active filtering layer through pretreated sewage by the rectangular cloth grid, active filtering layer suspends being in the sewage and the organic substance of dissolved state is retained down, form one deck film of microorganism abrim on the surface of soil particle, can adsorb the organism in the sewage, and utilize airborne oxygen, under the effect of aerobic bacteria, the organism in the sewage is changed into inorganics, thus effective decomposing organic pollutant.The sand of metalling and top thereof and clay seam make sewage rise along kapillary, the physics detention by sand and clay seam, absorb a series of effects such as absorption, microbiological degradation, the organism in the removal sewage.The lawn at top can absorb necessary for plant growth nutrients such as nitrogen in the sewage, phosphorus by its root system, and mowing regularly finally reaches the effect of denitrogenation dephosphorizing.
Sewage after purifying step by step by above flow process, entering reuse pool through filter bed of essence of the present invention utilizes again, reach " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level A standard-required, thereby effectively alleviate the water environment pollution problem of facility neighboring area.
Embodiment 2
Build the pond body of underground type PVC plate structure, the grating tank length 4.5m of pretreatment unit wherein, width 3.5m, anaerobe pond length 8m, width 3.5m, settling tank length 3.5m, the length of width 3m, water collecting basin is 3.5m, width 3m; The length of kapillary moisture type waste disposal plant is 28m, and width is 10m; The length and the width of reuse pool are 2m; The underlayer thickness of all pond bodies or cell body is 0.25m, and pool wall thickness is 0.25m.
Lay sand and clay seam, pebble bed successively at the cell body bottom of kapillary moisture type waste disposal plant, with the corresponding water distribution pipe network of cell body size, active filtering layer, metalling, clay seam and at the top turf plant.Wherein, active filtering layer by sand and clay, cinder, wood chip, empty metal tin by 10: 8: 2: 1 mixed forms (wherein the sand of active filtering layer and clay form with 2: 3 mixed), and empty metal tin is a right cylinder, diameter 80mm, height 150mm; The thickness of active filtering layer is 900mm; The thickness of pebble bed is 200mm, and the cobble yardstick of laying is Φ 20~60mm; Select the rectangular cloth grid, its caliber is 50mm; Downward 50 ° of apertures on the pipe network along both sides, the transverse pitch of aperture is 30mm, the aperture is 4mm; Metalling thickness is 200mm.
Sewage after purifying step by step by above flow process enters reuse pool through filter bed of essence of the present invention, reaches " miscellaneous domestic water quality standard " (CJ25.1-89) requirement, thus the shortage of water resources problem of releasing facilities neighboring area.

Claims (9)

1, a kind of kapillary compound sewage treatment device, comprise that the pond body is the underground type skeleton construction, pre-buried pvc pipe is communicated with between the body of pond pretreatment unit (1), kapillary moisture type waste disposal plant (2) and reuse pool (3) three parts is characterized in that pretreatment unit (1) comprises grating tank (4), anaerobe pond (5), settling tank (6) and the water collecting basin (7) that is communicated with successively by pvc pipe; Kapillary moisture type waste disposal plant (2) comprises cell body (8) and cell body (8) top water inlet pipe (9) and filter bed of essence (10) around the rising pipe, and is followed successively by sand and clay seam (11), pebble bed (12), and cell body (8) the corresponding water distribution pipe network of size (13), active filtering layer (14), metalling (15), clay seam (16) and surface vegetation (17) from bottom to top from cell body (8); Wherein filter bed of essence (10) is mixed with 3: 1 by cinder and wood chip.
2, kapillary compound sewage treatment device as claimed in claim 1 is characterized in that filling plastics tubing (18) in the above-mentioned settling tank (6).
3, kapillary compound sewage treatment device as claimed in claim 1, it is characterized in that above-mentioned active filtering layer (14) by sand and clay, cinder, wood chip, empty metal tin by 10: 8: 2: 1 mixed forms, thickness is 500~1000mm, empty metal tin is a right cylinder, diameter 60~80mm, height 120~150mm.
4, kapillary compound sewage treatment device as claimed in claim 1, the thickness that it is characterized in that above-mentioned pebble bed (12) are in 200~300mm scope, and the cobble yardstick of laying is Φ 20~80mm.
5, kapillary compound sewage treatment device as claimed in claim 1 is characterized in that above-mentioned water distribution pipe network (13) is the tubular body arranged inside parallel or staggered connection in the pipe, that some apertures (19) are arranged at top, its caliber D=50~75mm.
6, kapillary compound sewage treatment device as claimed in claim 5 is characterized in that above-mentioned aperture (19) is along downward 45 ° hole, tubular body arranged inside both sides, and the transverse pitch of aperture (19) is 30~50mm, and the aperture is 3~6mm.
7, kapillary compound sewage treatment device as claimed in claim 1 is characterized in that above-mentioned cell body (8) made by plastic pvc plate or reinforced concrete cast-in-situ plate.
8, kapillary compound sewage treatment device as claimed in claim 7 is characterized in that laying double-deck waterproofing membrane in the above-mentioned cell body (8).
9,, it is characterized in that above-mentioned cell body (8) is directly to use the displaced cell body of multilayer flashing film as claim 1 or 7 described kapillary compound sewage treatment devices.
CNA2009100171023A 2009-07-09 2009-07-09 Capillary tube compound sewage treatment device Pending CN101585647A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102241460A (en) * 2011-06-03 2011-11-16 天津万联管道工程有限公司 Modularized underground sewage treating system based on cylindrical precast element
CN102485662A (en) * 2010-12-03 2012-06-06 中国农业科学院农业资源与农业区划研究所 Wastewater processing substrate, water body processing apparatus and wastewater processing method, and application thereof
CN102849854A (en) * 2012-08-27 2013-01-02 北京化工大学 Household miniature integrated device for sewage treatment
CN103880186A (en) * 2014-03-21 2014-06-25 中国环境科学研究院 Treatment device for recycling mini-invasively excavated multi-medium subsurface infiltrate for irrigation water
CN104086055A (en) * 2014-08-01 2014-10-08 袁珩 Assembly type sewage treatment device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102485662A (en) * 2010-12-03 2012-06-06 中国农业科学院农业资源与农业区划研究所 Wastewater processing substrate, water body processing apparatus and wastewater processing method, and application thereof
CN102241460A (en) * 2011-06-03 2011-11-16 天津万联管道工程有限公司 Modularized underground sewage treating system based on cylindrical precast element
CN102849854A (en) * 2012-08-27 2013-01-02 北京化工大学 Household miniature integrated device for sewage treatment
CN102849854B (en) * 2012-08-27 2013-11-20 北京化工大学 Household miniature integrated device for sewage treatment
CN103880186A (en) * 2014-03-21 2014-06-25 中国环境科学研究院 Treatment device for recycling mini-invasively excavated multi-medium subsurface infiltrate for irrigation water
CN103880186B (en) * 2014-03-21 2015-11-18 中国环境科学研究院 A kind of Wicresoft excavation multimedium subsurface infiltration is back to the treatment unit of irrigation water
CN104086055A (en) * 2014-08-01 2014-10-08 袁珩 Assembly type sewage treatment device
CN104086055B (en) * 2014-08-01 2016-03-16 成都大学 A kind of assembly type waste disposal plant

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