CN203440221U - Artificial wetland system for sludge drying and stabilizing treatment - Google Patents
Artificial wetland system for sludge drying and stabilizing treatment Download PDFInfo
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- CN203440221U CN203440221U CN201320397350.7U CN201320397350U CN203440221U CN 203440221 U CN203440221 U CN 203440221U CN 201320397350 U CN201320397350 U CN 201320397350U CN 203440221 U CN203440221 U CN 203440221U
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Abstract
The utility model discloses an artificial wetland system for sludge drying and stabilizing treatment. The artificial wetland system comprises a sludge water inlet pipe, a regulating tank and at least one artificial wetland sludge treating tank, wherein an impermeable membrane, a gravel drainage layer for collecting sludge leachate, a gravel filter layer for purifying the sludge leachate and a sand bed for separating mud from water are sequentially laid in the body of the artificial wetland sludge treating tank from the bottom to top; a mud cake layer formed by dried sludge is arranged on the sand bed, and a to-be-treated sludge layer is arranged on the mud cake layer; wetland plants are planted inside the body of the artificial wetland sludge treating tank. Through the transpiration of the plants and the percolation of the substrate fillers, the sludge can be completely dried and stabilized. The volume of the treated sludge can be decreased to be 4-30% of the original volume; the contents of volatile organic compounds in the sludge can be reduced by 20-30%. The artificial wetland treatment technology has the advantages of significant sludge reducing and stabilizing treatment effects, low construction and operation costs, environmental friendliness and the like.
Description
Technical field
The utility model relates to a kind of artificial wet land system for sludge treatment.
Background technology
The Eleventh Five-Year Plan period, wastewater treatment in China industry has obtained developing rapidly, and sewage treatment capacity and processing rate rapid development, brought sludge yield rapid growth.Ended for the end of the year 2012, more than 3300 of national sewage work, day amount of disposing of sewage reaches 1.42 hundred million tons, and sludge creation amount surpasses 3,000 ten thousand ton per days.If a large amount of mud is without dealing carefully with, arbitrarily stacking can cause serious secondary pollution problem.
Conventionally the mud main component that sewage work produces is water, with fluid state, exists, and wherein solids content only accounts for 0.5～2%, and in solid, major part is the residual body of microorganism, and in solid, organic constituent accounts for 50～80%.Therefore, during the main purpose of sludge treatment, reduce the moisture in mud, reduce mud cumulative volume, and by organic constituent stabilization treatment in mud.The existing sludge treatment technique of sewage work generally comprises concentrated (patent No. CN 100579924C), dehydration (CN 101784490 B), anaerobic digestion (CN 100351187C), aerobic sigestion (CN101717173B) etc., sludge treatment somewhat expensive, generally can account for 20%～60% of whole sewage work working cost.
Utility model content
The utility model provides a kind of artificial wet land system for sludge drying and stabilization treatment, solve sludge treatment expense high, and processing efficiency is low, and a large amount of mud must not obtain the technical problem of immediately effectively processing.
The utility model solves the technical scheme that its technical problem adopts:
This artificial wet land system for sludge drying and stabilization treatment, comprises mud water inlet pipe, equalizing tank and at least one artificial swamp sludge treatment pond;
The body inside, pond of described artificial swamp sludge treatment pond is equipped with gravel layer of displacement for collecting mud percolate from bottom to top successively, for purifying the gravel packing of mud percolate, and for the sand bed of mud-water separation, the cake layer forming for dewatered sludge on sand bed is pending sludge blanket on cake layer; Body inner kind in pond is implanted with wetland plant; Body top, pond is provided with mud water distributor, and the water inlet of mud water distributor is connected with equalizing tank by pipeline, and water outlet is in pond; In the gravel layer of displacement of body bottom, pond, be laterally provided with percolate header, on percolate header, be distributed with perforation, percolate header one end is connected with the percolate vent pipe of protruding pond body, and one end is connected with the ventpipe that protrudes upward pond body.
Described artificial swamp sludge treatment pond is more than two, and two above artificial swamp sludge treatment ponds are parallel with one another by pipeline, and are connected with equalizing tank.
The total area of described artificial swamp sludge treatment pond determined by lignin-sludge amount or is responsible for population and determines, single pond bulk area is 5～1000 m
2, the pond body degree of depth is 2～5m, has at least 1% the gradient at the bottom of pond.
Described pond body is rectangle, and mud water distributor, along pond body length to layout, is intervally distributed with water outlet on mud water distributor.
The material of described pond body is concrete, earth, plastics or metal.
Body bottom, described pond is equipped with anti seepage membrane, and anti seepage membrane is geomembrane or water-proof coating.
Described gravel layer of displacement, gravel packing and sand bed are respectively the sand of the gravel of particle diameter 30～60mm, the gravel of particle diameter 2～10mm and particle diameter 0.5～1mm, and its laying depth is respectively 10～25cm, 10～80cm, 10～30cm.
Described percolate header can be pvc pipe, and the piercing aperture on it is 5～50mm, and pitch of holes is 2～10cm, and two rounds are respectively horizontal by 45° angle; Or percolate header is unglazed vitrified-clay pipe.
Described wetland plant is reed, cattail, Scirpus tabernaemontani, yellow flag or Spiked Loosestrife.
The beneficial effects of the utility model are as follows:
Composition structure of the present utility model comprises mud water inlet pipe, equalizing tank, artificial swamp sludge treatment pond, and mud enters equalizing tank by water inlet pipe, then through water distributor, enters in artificial swamp sludge treatment pond.Mud carries out mud-water separation by sand bed in artificial swamp sludge treatment pond, and percolate enters filtering layer by sand bed and purifies, and in layer of displacement, by header, collects, and discharges afterwards through water shoot.And mud deposits on sand bed, form the cake layer of mummification, through several, to take turns after sludge treatment, final cake layer transports with forklift.
Impervious barrier at the bottom of artificial swamp sludge treatment pond pond is used for preventing leachate contamination Soil Surrounding, when artificial swamp is native pond, by geomembrane, carries out antiseepage, if artificial swamp pond is concrete structure, applies water-proof coating.Gravel layer of displacement is used for collecting mud percolate.Gravel packing is used for purifying percolate.Sand bed, for mud-water separation, is isolated in mud on sand bed, and mud percolate can penetrate into by sand bed the gravel packing of below.Cake layer is not laid, but takes turns after sludge treatment through several, by the mud of mummification, is piled up and is formed.The formation of cake layer can promote the filtration mummification of follow-up mud and the degraded of organic constituent.Percolate header is laid in gravel layer of displacement, for perforation floral tube, for collecting mud percolate.Ventpipe one end communicates with atmosphere, and one end connects percolate header, for passing into oxygen to wetland inside, there to be the degraded that is easy to pollutent.
The utility model is by the transpiration of plant and the transudation of matrix fill, make mud obtain sufficient mummification and stabilization treatment, it is original 4%～30% that sludge volume after processing can taper to, and in mud, volatile organic matter content can reduce 20%～30%.Compare with existing sludge disposal technology, this artificial swamp sludge disposal technology has sludge reduction and stabilization treatment effect is remarkable, Construction and operation expense is low, advantages of environment protection.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is plot plan of the present utility model.
Fig. 2 is the structural representation of artificial swamp sludge treatment pond.
Fig. 3 is the structural representation of percolate header cross section.
Reference numeral: 1-mud water inlet pipe, 2-equalizing tank, 3-artificial swamp sludge treatment pond, 4-mud water distributor, 5-percolate vent pipe, 6-anti seepage membrane, 7-gravel layer of displacement, 8-gravel packing, 9-sand bed, 10-cake layer, 11-sludge blanket, 12-percolate header, 13-ventpipe, 14-wetland plant, 15-perforation, 16-pond body.
Embodiment
Embodiment mono-, shown in Figure 1, and this artificial wet land system for sludge drying and stabilization treatment comprises mud water inlet pipe 1, equalizing tank 2 and four artificial swamp sludge treatment ponds 3.Four artificial swamp sludge treatment ponds 3 are parallel with one another by pipeline, and are connected with equalizing tank 2.
Shown in Figure 2, pond body 16 inside of described artificial swamp sludge treatment pond 3 are equipped with anti seepage membrane 6 from bottom to top successively, for collecting the gravel layer of displacement 7 of mud percolate, for purifying the gravel packing 8 of mud percolate, and for the sand bed 9 of mud-water separation.Gravel layer of displacement 7, gravel packing 8 and sand bed 9 are respectively the sand of the gravel of particle diameter 30～60mm, the gravel of particle diameter 2～10mm and particle diameter 0.5～1mm, and its laying depth is respectively 10～25cm, 10～80cm, 10～30cm.The cake layer 10 forming for dewatered sludge on sand bed 9 is pending sludge blanket 11 on cake layer 10; The inner kind of pond body 16 is implanted with wetland plant 14, and described wetland plant 14 is reed, cattail, Scirpus tabernaemontani, yellow flag or Spiked Loosestrife.Body 16 tops in pond are provided with mud water distributor 4, and the water inlet of mud water distributor 4 is connected with equalizing tank 2 by pipeline, and water outlet is in pond; The interior percolate header 12 that is laterally provided with of gravel layer of displacement 7 of pond body 16 bottoms, on percolate header 12, be distributed with perforation 15, percolate header 12 one end are connected with the percolate vent pipe 5 of protruding pond body, and one end is connected with the ventpipe 13 that protrudes upward pond body.
The total area of described artificial swamp sludge treatment pond 3 determined by lignin-sludge amount or is responsible for population and determines, single pond bulk area is 5～1000 m
2, the pond body degree of depth is 2～5m, has at least 1% the gradient at the bottom of pond.Pond body 16 is rectangle, and mud water distributor 4, along pond body length to layout, is intervally distributed with water outlet on mud water distributor 4.The material of described pond body 16 is concrete, earth, plastics or metal.The anti seepage membrane 6 of concrete basin can adopt water-proof coating.The anti seepage membrane 6 of earth pond body can adopt geomembrane.
Shown in Figure 3, described percolate header 12 can be pvc pipe, and perforation 15 apertures on it are 5～50mm, and pitch of holes is 2～10cm, and two rounds are respectively horizontal by 45° angle.Percolate header is also unglazed vitrified-clay pipe.
Embodiment bis-, the pond body of artificial swamp sludge treatment pond 3 is diameter 0.82m, and the plastic tank of high 1.5m is equipped with the gravel 15cm of diameter 50mm as gravel layer of displacement, it on it, is the gravel packing of diameter 10mm, thickness is 10cm, then top be the sand bed of diameter 1mm, thickness is 15cm, sand bed top is cake layer, plantation reed and cattail, plastic tank bottom is provided with percolate relief outlet, and has ventpipe to wetland bottom gas-feeding.The excess sludge of sewage work is after 2 months process, and sludge volume reduces 68%, and in mud, organic content reduces 23%.
The sludge drying of this employing artificial wet land system and stabilization treatment method, treatment step is as follows:
Step 1, the mud that sewage work produces is in mud water inlet pipe 1 enters equalizing tank 2, from equalizing tank 2, in artificial swamp sludge treatment pond 3, be continuously pumped into mud, to pond body maximum capacity or designated water level, stop subsequently the pump people of mud, the treatment stage of entering, treatment time cake layer thickness and moisture percentage in sewage sludge of entering in local climate, artificial swamp pond determine, be generally several days to several weeks not etc.;
Claims (9)
1. for an artificial wet land system for sludge drying and stabilization treatment, it is characterized in that: comprise mud water inlet pipe (1), equalizing tank (2) and at least one artificial swamp sludge treatment pond (3);
The pond body (16) of described artificial swamp sludge treatment pond (3) is inner is equipped with gravel layer of displacement (7) for collecting mud percolate from bottom to top successively, for purifying the gravel packing (8) of mud percolate, and for the sand bed (9) of mud-water separation, the cake layer (10) forming for dewatered sludge on sand bed (9) is pending sludge blanket (11) on cake layer (10); The inner kind of pond body (16) is implanted with wetland plant (14); Pond body (16) top is provided with mud water distributor (4), and the water inlet of mud water distributor (4) is connected with equalizing tank (2) by pipeline, and water outlet is in pond; In the gravel layer of displacement (7) of pond body (16) bottom, be laterally provided with percolate header (12), on percolate header (12), be distributed with perforation (15), percolate header (12) one end is connected with the percolate vent pipe (5) of protruding pond body, and one end is connected with the ventpipe (13) that protrudes upward pond body.
2. the artificial wet land system for sludge drying and stabilization treatment according to claim 1, it is characterized in that: described artificial swamp sludge treatment pond (3) is more than two, two above artificial swamp sludge treatment ponds (3) are parallel with one another by pipeline, and are connected with equalizing tank (2).
3. the artificial wet land system for sludge drying and stabilization treatment according to claim 1, it is characterized in that: the total area of described artificial swamp sludge treatment pond (3) determined by lignin-sludge amount or be responsible for population and determine, single pond bulk area is 5～1000 m
2, the pond body degree of depth is 2～5m, has at least 1% the gradient at the bottom of pond.
4. the artificial wet land system for sludge drying and stabilization treatment according to claim 1, is characterized in that: described pond body (16) is rectangle, and mud water distributor (4) is along pond body length to layout, and mud water distributor is intervally distributed with water outlet on (4).
5. the artificial wet land system for sludge drying and stabilization treatment according to claim 1, is characterized in that: the material of described pond body (16) is concrete, earth, plastics or metal.
6. the artificial wet land system for sludge drying and stabilization treatment according to claim 1, is characterized in that: described pond body (16) bottom is equipped with anti seepage membrane (6), and anti seepage membrane (6) is geomembrane or water-proof coating.
7. the artificial wet land system for sludge drying and stabilization treatment according to claim 1, it is characterized in that: described gravel layer of displacement (7), gravel packing (8) and sand bed (9) are respectively the sand of the gravel of particle diameter 30～60mm, the gravel of particle diameter 2～10mm and particle diameter 0.5～1mm, and its laying depth is respectively 10～25cm, 10～80cm, 10～30cm.
8. the artificial wet land system for sludge drying and stabilization treatment according to claim 1, it is characterized in that: described percolate header (12) is pvc pipe, perforation on it (15) aperture is 5～50mm, and pitch of holes is 2～10cm, and two rounds are respectively horizontal by 45° angle; Or percolate header is unglazed vitrified-clay pipe.
9. the artificial wet land system for sludge drying and stabilization treatment according to claim 1, is characterized in that: described wetland plant (14) is reed, cattail, Scirpus tabernaemontani, yellow flag or Spiked Loosestrife.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320397350.7U CN203440221U (en) | 2013-07-05 | 2013-07-05 | Artificial wetland system for sludge drying and stabilizing treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320397350.7U CN203440221U (en) | 2013-07-05 | 2013-07-05 | Artificial wetland system for sludge drying and stabilizing treatment |
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| CN203440221U true CN203440221U (en) | 2014-02-19 |
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| CN201320397350.7U Expired - Fee Related CN203440221U (en) | 2013-07-05 | 2013-07-05 | Artificial wetland system for sludge drying and stabilizing treatment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107216009A (en) * | 2017-07-07 | 2017-09-29 | 陕西省环境科学研究院 | A kind of plant bed apparatus of processing small towns sewage plant sludge |
| CN108383324A (en) * | 2018-02-13 | 2018-08-10 | 贵州民族大学 | Utilize the distillery waste processing method of artificial swamp and the preparation method of artificial swamp |
| CN108751649A (en) * | 2018-08-07 | 2018-11-06 | 郑州大学环境技术咨询工程有限公司 | A kind of processing system having to rural sewage treatment excess sludge |
| CN109592856A (en) * | 2019-01-26 | 2019-04-09 | 浙江水利水电学院 | A kind of environment-friendly type river sewage treatment process |
| CN111908617A (en) * | 2020-09-08 | 2020-11-10 | 中国电建集团成都勘测设计研究院有限公司 | Substrate filler for strengthening constructed wetland dephosphorization by utilizing wetland plant reinvigoration flowers and method |
| CN114620912A (en) * | 2022-03-28 | 2022-06-14 | 同济大学 | Rural sludge treatment method and sludge treatment resource tank |
-
2013
- 2013-07-05 CN CN201320397350.7U patent/CN203440221U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107216009A (en) * | 2017-07-07 | 2017-09-29 | 陕西省环境科学研究院 | A kind of plant bed apparatus of processing small towns sewage plant sludge |
| CN108383324A (en) * | 2018-02-13 | 2018-08-10 | 贵州民族大学 | Utilize the distillery waste processing method of artificial swamp and the preparation method of artificial swamp |
| CN108751649A (en) * | 2018-08-07 | 2018-11-06 | 郑州大学环境技术咨询工程有限公司 | A kind of processing system having to rural sewage treatment excess sludge |
| CN109592856A (en) * | 2019-01-26 | 2019-04-09 | 浙江水利水电学院 | A kind of environment-friendly type river sewage treatment process |
| CN111908617A (en) * | 2020-09-08 | 2020-11-10 | 中国电建集团成都勘测设计研究院有限公司 | Substrate filler for strengthening constructed wetland dephosphorization by utilizing wetland plant reinvigoration flowers and method |
| CN114620912A (en) * | 2022-03-28 | 2022-06-14 | 同济大学 | Rural sludge treatment method and sludge treatment resource tank |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20180705 |