CN103539327B - A kind of manufacture method of derived from sludge artificial soil - Google Patents
A kind of manufacture method of derived from sludge artificial soil Download PDFInfo
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- CN103539327B CN103539327B CN201310461474.1A CN201310461474A CN103539327B CN 103539327 B CN103539327 B CN 103539327B CN 201310461474 A CN201310461474 A CN 201310461474A CN 103539327 B CN103539327 B CN 103539327B
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- sludge
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Abstract
The present invention relates to a kind of manufacture method of derived from sludge artificial soil, first mud dilution, strengthens mobility; Then add deodorizing, sterilization and improve conditioning improved chemical and the auxiliary material of dewatering performance of sludge, and fully stir, carry out stabilization treatment; Finally the mud after stabilization treatment is carried out mechanical dehydration, reduce water ratio, form artificial soil.This artificial soil Stability Analysis of Structures, good hydrophilic property, minimizing is obvious, convenient transportation, and meet the standard of country about Sludge landfill, can be used as landfill yard overburden soil, engineering backfill soil etc., purposes is very extensive; And the investment of this manufacture method is less, running cost is lower, and equipment layout is simple, flexible, stable.In addition, be delivered to the recycle of mud dilution link after also mechanical dehydration sewage effluent can being processed, reach good energy-saving and emission-reducing effect, environmental protection.
Description
[technical field]
The invention belongs to technical field of sludge treatment, particularly a kind of manufacture method of derived from sludge artificial soil.
[background technology]
Municipal sludge is the different semi-solid state sedimentable matter of water ratio that municipal sewage plant's purification of water quality treating processes produces.Its comparison of ingredients of municipal sludge is complicated, and water content is high, perishable, has strong stink, and containing parasitic ovum, pathogenic micro-organism, heavy metal and a large amount of organic matters.
At present, China's mud year generation more than 3,000 ten thousand tons, only account for about 30% to the process disposal rate of sewage sludge harmlessness, resource utilization, major part is not effectively addressed.In China, main or landfill, compost, burning etc. to the process of mud.Landfill needs to take a large amount of land resources, also inevitably produces secondary pollution; Compost needs a large amount of places, curing time is long, and mud heavy metal content of making into fertilizer is high, if control bad in use intermediate links, live and closely bound up food just exists these heavy metal ion by food chain for cultivating veterinary antibiotics etc. and people and enter human body, the health of the mankind is constituted a threat to; Sludge incineration somewhat expensive, and the risk that there is dioxin.
According to " " 12 " national urban wastewater treatment and the planning of regeneration Facilities Construction ", require the sludge disposal technology that various places are suitable for according to urban wastewater treatment firm specific resistance to filtration technology relevant requirements and shale Standard Selection.Adopt multiple technologies process disposing sludge, reclaim as far as possible and utilize the energy in mud and resource.
Sludge treatment should realize recycling on minimizing, stabilization, innoxious basis, makes full use of nutrient and calorific value in mud, but does not up to the present still have a kind of effective treatment process.
[summary of the invention]
The present invention is the above-mentioned technical problem solved, and providing one can stablize by derived structure, good hydrophilic property, minimizing is obvious, convenient transportation, meet the standard of country about Sludge landfill, purposes is artificial soil very widely, and invest less, running cost is lower, and equipment layout is simple, flexible, stable, energy-saving and emission-reducing, the manufacture method of environmental protection.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A manufacture method for derived from sludge artificial soil, includes following steps:
A. mud dilution, strengthens mobility;
B. add deodorizing, sterilization and improve conditioning improved chemical and the auxiliary material of dewatering performance of sludge, and fully stir, carry out stabilization treatment;
C. the mud after stabilization treatment is carried out mechanical dehydration, reduce water ratio, form artificial soil.
Further, described mud dilution, is specially: the municipal sludge of moisture 80% is diluted to moisture 92%.
Further, described interpolation deodorizing, sterilization and improve conditioning improved chemical and the auxiliary material of dewatering performance of sludge, and fully stir, carry out stabilization treatment, be specially: the mud after dilution loaded conditioning modified tank and adds sludge conditioning improved chemical and auxiliary material, and fully stirring, to improve dewatering performance of sludge, consume organic matter in mud and heavy metal-passivated simultaneously, and reach good deodorizing effect.
Further, described improved chemical is mixed and modified liquid medicine and unslaked lime, and the weight percent of its butt is 3% of municipal sludge; Auxiliary material is flyash, and the weight percent of its butt is 20% of municipal sludge.
Further, described mud after stabilization treatment is carried out mechanical dehydration, be specifically as follows: the mud after stabilization treatment is delivered to membrane pressure filter, and membrane pressure filter dewaters to mud, export the stable artificial soil that water ratio is reduced to less than 40%.
Further, this manufacture method also includes sewage disposal, and the sewage effluent described mud being carried out to mechanical dehydration processes, and is delivered to mud dilution link, recycle.
The invention has the beneficial effects as follows:
The present invention passes through technique scheme, derivative artificial soil Stability Analysis of Structures, good hydrophilic property, and minimizing is obvious, convenient transportation, and meet the standard of country about Sludge landfill, can be used as landfill yard overburden soil, engineering backfill soil etc., purposes is very extensive; And the investment of this manufacture method is less, running cost is lower, and equipment layout is simple, flexible, stable.
In addition, be delivered to the recycle of mud dilution link after also mechanical dehydration sewage effluent can being processed, reach good energy-saving and emission-reducing effect, environmental protection.
[accompanying drawing explanation]
Fig. 1 is the schema of the manufacture method embodiment of a kind of derived from sludge artificial soil of the present invention.
[embodiment]
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in fig. 1:
The manufacture method of a kind of derived from sludge artificial soil of the present invention, includes following steps:
Steps A 1. mud dilutes, and strengthens mobility.
Steps A 2. is added deodorizing, sterilization and is improved conditioning improved chemical and the auxiliary material of dewatering performance of sludge, and fully stirs, and carries out stabilization treatment.
Mud after stabilization treatment is carried out mechanical dehydration by steps A 3., reduces water ratio, forms artificial soil.
Wherein, described mud dilution, is specifically as follows: the municipal sludge of moisture 80% is diluted to moisture 92%.Described interpolation deodorizing, sterilization and improve conditioning improved chemical and the auxiliary material of dewatering performance of sludge, and fully stir, carry out stabilization treatment, be specifically as follows: the mud after dilution is loaded conditioning modified tank and adds sludge conditioning improved chemical and auxiliary material, and fully stir, to improve dewatering performance of sludge, consume organic matter in mud and heavy metal-passivated simultaneously, and reach good deodorizing effect; Described improved chemical is mixed and modified liquid medicine and unslaked lime, and the weight percent of its butt is 3% of municipal sludge; Auxiliary material is flyash, and the weight percent of its butt is 20% of municipal sludge.Described mud after stabilization treatment is carried out mechanical dehydration, be specifically as follows: the mud after stabilization treatment is delivered to membrane pressure filter by spiral pump (pumping pressure is about 0.8MPa), membrane pressure filter dewaters to mud, and namely exportable water ratio is reduced to the stable artificial soil of less than 40%; After testing, its technical parameter is as following table one for this artificial soil.
Table one:
| Sequence number | Content | Index number | Remarks |
| 1 | PH value | 6～8 | |
| 2 | Water ratio | ≤40% | Also mummification can be continued under field conditions (factors) |
| 3 | Dry density | 1.4～1.7t/m 3 | |
| 4 | Organic content | ≤8% |
In sum, from the artificial soil of derived from sludge, there is following characteristics by manufacture method of the present invention:
1, Stability Analysis of Structures, places in the Nature and does not return raw (not continuing fermentation);
2, good hydrophilic property, is immersed in water and does not feel like jelly, and leaches pollutent low;
3, the standard of country about Sludge landfill is met;
4, finishing applications is wide: can be used as landfill yard overburden soil, engineering backfill soil etc.;
5, sludge reduction is obvious, convenient transportation;
And the investment of this manufacture method is less, and running cost is lower, equipment layout is simple, flexible, stable.
In addition, the manufacture method of derived from sludge artificial soil of the present invention, also includes steps A 4 sewage disposal, the sewage effluent described mud being carried out to mechanical dehydration processes, and be delivered to steps A 1 as mud dilution raw material, reach good energy-saving and emission-reducing effect, environmental protection.
Above content is in conjunction with concrete optimal technical scheme further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (1)
1. a manufacture method for derived from sludge artificial soil, is characterized in that, includes following steps:
A. mud dilution, is diluted to moisture 92% by the municipal sludge of moisture 80%, strengthens mobility;
B. add deodorizing, sterilization and improve conditioning improved chemical and the auxiliary material of dewatering performance of sludge, and fully stir, carry out stabilization treatment;
C. the mud after stabilization treatment is carried out mechanical dehydration, reduce water ratio, form artificial soil;
Described interpolation deodorizing, sterilization and improve conditioning improved chemical and the auxiliary material of dewatering performance of sludge, and fully stir, carry out stabilization treatment, be specially: the mud after dilution is loaded conditioning modified tank and adds sludge conditioning improved chemical and auxiliary material, and fully stir, to improve dewatering performance of sludge, consume organic matter in mud and heavy metal-passivated simultaneously, and reach good deodorizing effect, and described improved chemical is mixed and modified liquid medicine and unslaked lime, the weight percent of its butt is 3% of municipal sludge; Auxiliary material is flyash, and the weight percent of its butt is 20% of municipal sludge;
Described mud after stabilization treatment is carried out mechanical dehydration, be specially: the mud after stabilization treatment is delivered to membrane pressure filter, and membrane pressure filter dewaters to mud, export the stable artificial soil that water ratio is reduced to less than 40%; Sewage disposal is carried out to the sewage effluent that described mud carries out mechanical dehydration simultaneously, and be delivered to mud dilution link, recycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310461474.1A CN103539327B (en) | 2013-09-30 | 2013-09-30 | A kind of manufacture method of derived from sludge artificial soil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310461474.1A CN103539327B (en) | 2013-09-30 | 2013-09-30 | A kind of manufacture method of derived from sludge artificial soil |
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| Publication Number | Publication Date |
|---|---|
| CN103539327A CN103539327A (en) | 2014-01-29 |
| CN103539327B true CN103539327B (en) | 2015-11-25 |
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| CN201310461474.1A Expired - Fee Related CN103539327B (en) | 2013-09-30 | 2013-09-30 | A kind of manufacture method of derived from sludge artificial soil |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786777A (en) * | 2010-03-19 | 2010-07-28 | 东莞市绿适环保科技有限公司 | The prescription that is used to handle domestic sludge or animal excrement based on nanotechnology |
| CN102322642A (en) * | 2011-06-07 | 2012-01-18 | 创冠环保(中国)有限公司 | Sludge drying and incinerating system on basis of incineration of waste grate furnace and treatment method thereof |
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2013
- 2013-09-30 CN CN201310461474.1A patent/CN103539327B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786777A (en) * | 2010-03-19 | 2010-07-28 | 东莞市绿适环保科技有限公司 | The prescription that is used to handle domestic sludge or animal excrement based on nanotechnology |
| CN102322642A (en) * | 2011-06-07 | 2012-01-18 | 创冠环保(中国)有限公司 | Sludge drying and incinerating system on basis of incineration of waste grate furnace and treatment method thereof |
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| CN103539327A (en) | 2014-01-29 |
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Effective date of registration: 20160929 Address after: 519000 Zhuhai, Xiangzhou, Xiangzhou District, No. 313 Lion Hill Road, No. Patentee after: Rong Wenyu Address before: 519000 Guangdong city of Zhuhai province Jinding gate Wu Ling Industrial Zone Sheng Hui Street No. 16 Patentee before: The high bio tech ltd of Zhuhai City's mighty force |
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Effective date of registration: 20170213 Address after: 519000 Guangdong city of Zhuhai province Jinding gate Wu Ling Industrial Zone Sheng Hui Street No. 16 Patentee after: The high bio tech ltd of Zhuhai City's mighty force Address before: 519000 Zhuhai, Xiangzhou, Xiangzhou District, No. 313 Lion Hill Road, No. Patentee before: Rong Wenyu |
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