CN202201785U - Safety landfill site for sludge immobilization - Google Patents
Safety landfill site for sludge immobilization Download PDFInfo
- Publication number
- CN202201785U CN202201785U CN2011203451211U CN201120345121U CN202201785U CN 202201785 U CN202201785 U CN 202201785U CN 2011203451211 U CN2011203451211 U CN 2011203451211U CN 201120345121 U CN201120345121 U CN 201120345121U CN 202201785 U CN202201785 U CN 202201785U
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- displacement
- landfill
- sludge
- transudate
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Abstract
The utility model relates to a safety landfill site for sludge immobilization, which comprises a foundation, a seepage-proofing layer and a sludge dumping system, wherein the seepage-proofing layer is arranged between the foundation sludge dumping system; the sludge landfill system comprises dumped sludge, a drainage layer, a leachate collection trough and leachate guide-out equipment; the drainage layer is laid on the seepage-proofing layer; the dumped sludge is placed on the drainage layer; the leachate collection trough is communicated with the drainage layer and is lower than the drainage layer; and the leachate guide-out equipment is communicated with the leachate collection trough. The landfill site has high dehydration efficiency and simple operation; and soil engineering filter bags are piled up, thereby greatly reducing the problem that the occupied area for the natural drying treatment for the sludge is large.
Description
Technical field
The utility model relates to the environmental improvement field, especially relates to a kind of sludge immobilization security landfill field.
Background technology
Along with the develop rapidly of China's economic construction, requirement on environmental protection to be paid attention to day by day, the construction of municipal sewage plant is increasing, and the sludge quantity that correspondingly sewage work produced is also increasing.Mud be a kind of water ratio of in sewage treatment process, forming high contain the solid-liquid body, volume can reach its contained solid volumetrical several times.Sludge from wastewater treatment plant have water ratio height, volume big, be prone to corruption, cacodorous characteristics, the purpose that sludge treatment is disposed be with subtract appearanceization, stabilization, innoxious, resource turns to principle.The key of mud landfill is to reduce sludge moisture content, reduces the volume of mud, reduces the pressure of follow-up structures and processing unit.
Sludge dewatering technology of the prior art has: belt pressure filtering technique, centrifuge dehydration technology, filter press is technological and natural drying technique.First three is a mechanical dehydration, but its moisture percentage in sewage sludge is still higher, and usually between 78%-83%, and energy consumption is higher; Latter's nature mummification floor space is big, receives weather effect big, can produce stench, and because the bed mud in the stockyard is exposed, directly contacts with surrounding environment, if the surplus water treatment in stockyard is not up to standard, will cause secondary pollution to peripheral water body.
The utility model content
The purpose of the utility model provides a kind of sludge immobilization security landfill field, so that address the above problem.
In order to realize the foregoing invention purpose, the technical scheme that the utility model adopts is following:
A kind of sludge immobilization security landfill field; Comprise ground, impervious barrier and mud landfill system; Said impervious barrier is arranged between said ground and the said mud landfill system; Said mud landfill system comprises by landfill mud, layer of displacement, transudate collects ditch and transudate is derived equipment, and said layer of displacement is laid on the said impervious barrier, saidly is placed on the said layer of displacement by landfill mud; Said transudate collection ditch is communicated with said layer of displacement and is lower than said layer of displacement setting, and the said transudate equipment of deriving is collected ditch with said transudate and is connected.
Said impervious barrier comprises geotechnological filter screen, underground water lead layer, geotechnological filter screen, clay seam, sodium bentonite pad GCL, HDPE geomembrane, non-woven geotextile and the geotechnological drainage network of upwards laying successively from said ground.
The thickness of said clay seam is not less than 50cm, and PQ is not more than 1.0 * 10
-7Cm/s.
Said layer of displacement comprises gravel layer of displacement and geotechnological filter screen, and said gravel layer of displacement thickness is more than or equal to 50cm.
The direction that said impervious barrier is collected ditch from its position of collecting ditch away from said transudate to said transudate keeps being not less than 2% the gradient.
Saidly placed geotechnological filter bag by landfill mud, said geotechnological filter bag is placed on the said layer of displacement.
Said geotechnological filter bag piles up placement, in lower floor, faces mutually in two slits between the said geotechnological filter bag to be filled with the support pad that prevents said geotechnological filter bag unbalance stress.
Sodium bentonite pad in the utility model is GCL.
Compared with prior art, the advantage of the utility model is:
1. the dewatering efficiency of the utility model landfill yard is high, simple to operate;
2. geotechnological filter bag piles up the big problem of the mud nature required floor space of drying and other treatment that greatly reduces of placing in the utility model.
Description of drawings
Fig. 1 is the synoptic diagram of the utility model;
Fig. 2 is the partial enlarged drawing of impervious barrier among Fig. 1;
Synoptic diagram when Fig. 3 piles up for geotechnological filter bag.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with accompanying drawing and embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
A kind of sludge immobilization security landfill field as shown in Figure 1; Comprise ground 5, impervious barrier 1 and mud landfill system; Said impervious barrier 1 is arranged between said ground 5 and the said mud landfill system; Said impervious barrier 1 comprises underground water lead layer (geotechnological filter screen, underground water lead layer, geotechnological filter screen) and clay seam 2, sodium bentonite pad (GCL) and HDPE geomembrane 3, non-woven geotextile and the geotechnological drainage network 4 of upwards laying successively from said ground 5; The thickness of wherein said clay seam is not less than 50cm, and PQ is not more than 1.0 * 10
-7Cm/s; Said mud landfill system comprises by landfill mud 6, layer of displacement and geotechnological filter screen 8, transudate collects ditch 7 and transudate is derived the equipment (not shown); Said layer of displacement is the gravel layer of displacement, and its thickness is laid on the said impervious barrier 1 more than or equal to 50cm and said layer of displacement; Saidly placed geotechnological filter bag 9 by landfill mud 6, said geotechnological filter bag 9 piles up and is placed on the said layer of displacement, in lower floor, faces mutually in the slit between the two said geotechnological filter bags 9 to be filled with the support pad 11 that prevents said geotechnological filter bag 9 unbalance stress; Said transudate is collected ditch 7 and is communicated with and is lower than direction that said layer of displacement setting and said impervious barrier 1 collect ditch 7 from its position of collecting ditch 7 away from said transudate to said transudate with said layer of displacement and keep being not less than 2% the gradient, and said transudate derivation equipment is connected with said transudate collection ditch 7.
As shown in Figure 1, leached after said layer of displacement and geotechnological filter screen 8 get into said transudate collection ditch 7 from said geotechnological filter bag 9 by the transudate in the landfill mud 10, discharge by said transudate derivation equipment then.
More than through the detailed description of concrete and preferred embodiment the utility model; But those skilled in the art should be understood that; The utility model is not limited to the above embodiment; All within the spirit and principle of the utility model, any modification of being done, be equal to replacement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. sludge immobilization security landfill field; It is characterized in that; Comprise ground, impervious barrier and mud landfill system, said impervious barrier is arranged between said ground and the said mud landfill system, and said mud landfill system comprises by landfill mud, layer of displacement, transudate collects ditch and transudate is derived equipment; Said layer of displacement is laid on the said impervious barrier; Saidly be placed on the said layer of displacement by landfill mud, said transudate is collected ditch and is communicated with said layer of displacement and is lower than said layer of displacement setting, and said transudate derivation equipment is connected with said transudate collection ditch.
2. sludge immobilization security landfill according to claim 1 field is characterized in that: said impervious barrier comprises geotechnological filter screen, underground water lead layer, geotechnological filter screen, clay seam, sodium bentonite pad GCL, HDPE geomembrane, non-woven geotextile and the geotechnological drainage network of upwards laying successively from said ground.
3. sludge immobilization security landfill according to claim 2 field, it is characterized in that: the thickness of said clay seam is not less than 50cm, and PQ is not more than 1.0 * 10
-7Cm/s.
4. sludge immobilization security landfill according to claim 1 field is characterized in that: said layer of displacement comprises gravel layer of displacement and geotechnological filter screen, and said gravel layer of displacement thickness is more than or equal to 50cm.
5. sludge immobilization security landfill according to claim 1 field is characterized in that: the direction that said impervious barrier is collected ditch from its position of collecting ditch away from said transudate to said transudate keeps being not less than 2% the gradient.
6. sludge immobilization security landfill according to claim 1 field is characterized in that: saidly placed geotechnological filter bag by landfill mud, said geotechnological filter bag is placed on the said layer of displacement.
7. sludge immobilization security landfill according to claim 6 field is characterized in that: said geotechnological filter bag piles up placement, in lower floor, faces mutually in two slits between the said geotechnological filter bag to be filled with the support pad that prevents said geotechnological filter bag unbalance stress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203451211U CN202201785U (en) | 2011-09-13 | 2011-09-13 | Safety landfill site for sludge immobilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203451211U CN202201785U (en) | 2011-09-13 | 2011-09-13 | Safety landfill site for sludge immobilization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202201785U true CN202201785U (en) | 2012-04-25 |
Family
ID=45965918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203451211U Expired - Lifetime CN202201785U (en) | 2011-09-13 | 2011-09-13 | Safety landfill site for sludge immobilization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202201785U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801530A (en) * | 2015-04-24 | 2015-07-29 | 吉晋兰 | Process for landfill of sludge and coal gangue together |
| WO2022256472A1 (en) * | 2021-06-02 | 2022-12-08 | Mega Drain Gp Llc | Fluid collection system |
-
2011
- 2011-09-13 CN CN2011203451211U patent/CN202201785U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801530A (en) * | 2015-04-24 | 2015-07-29 | 吉晋兰 | Process for landfill of sludge and coal gangue together |
| WO2022256472A1 (en) * | 2021-06-02 | 2022-12-08 | Mega Drain Gp Llc | Fluid collection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120425 |