CN102267793A - Dehydrating method for sludge - Google Patents
Dehydrating method for sludge Download PDFInfo
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- CN102267793A CN102267793A CN2011102221306A CN201110222130A CN102267793A CN 102267793 A CN102267793 A CN 102267793A CN 2011102221306 A CN2011102221306 A CN 2011102221306A CN 201110222130 A CN201110222130 A CN 201110222130A CN 102267793 A CN102267793 A CN 102267793A
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- mud
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- sludge sump
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- sludge
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Abstract
The invention relates to treatment of sludge, in particular to a dehydrating method for sludge, belonging to the technical field of environmental protection. The method comprises the following steps of: excavating a chuck hole, setting a dewatering well, arranging an electrode in the middle of the chuck groove, draining water in the sludge into a water well pipe for dehydrating by using an electrophoresis method; and forming a reinforced concrete chuck hole, draining moisture in the sludge by using a vacuum dewatering method, and extracting moisture from the sludge by using a gravity method or a vacuum method. The method is a most effective, cheapest and most complete sludge dehydrating method; and according to the method, waste is utilized, and harmful substances are changed into valuable.
Description
Technical field
The present invention relates to a kind of processing of mud, be specifically related to a kind of dewatering of mud, belong to environmental protection technical field.
Background technology
The looks that modernization construction progressively is being lifted oneself out of poverty and backwardness China, but also made a large amount of sewage and mud for us.The nineties in last century, there are 78 sewage works in 40 cities of China, and nineteen ninety-five, sewage work is increased to 122, and 2000, surpass 400 sewage works, in June, 2010, sewage work has become 2389.After sewage load increased, the consequent was a large amount of mud that produce.Mud is the product after the sewage disposal, is a kind of extremely complicated heterogeneous body of being made up of organic relic, bacterium thalline, inorganic particle, colloid etc.The main characteristic of mud is water ratio height (can up to more than 99%), and the organic content height is degenerated smellyly easily, and particle is thinner, and proportion is less, is gluey liquid.It is the concentrated thing between liquid and solid, can transport with pump, but it is difficult to carry out solid-liquid separation by sedimentation.As the saying goes " messy ", no matter take which kind of mode, dehydration all is the prerequisite that sludge treatment is disposed.Yet " moisture of the squeezing out " not a duck soup also of trying every possible means from mud as far as possible.The relative merits of existing mud dewatering method: 1, heat energy method of evaporation, this is the most flat-footed a kind of method, simple and easy to do, but it is too high to consume energy, the mud of 1 ton of 80% water ratio of every processing will be deviate from the mud that 200 kilograms of moisture just can become 75% water ratio, and adopts the method for heat energy evaporation, just need to consume 25 kilograms of coals, perhaps 18.3 cubic metres of Sweet natural gases.Adopt main drying technique such as Sweet natural gas mummification, steam mummification, lime mummification, so that mud finally can be used in landfill or burning, though this is available for the little fowl and animal excrement of treatment capacity, cost is too high.The sludge of sewage treatment plants and the river embankment mud that have a large capacity and a wide range for China may not solve; 2, utilize water extracter to handle, main sludge dewatering facility has: plate-and-frame filter press, belt water extracter and centrifuge.Because of needs and concentration basin are used, these facilities are usually fixing to be built in the sludge treatment field, and has that energy consumption height, noise are big, drawback such as big takes up room more.
Summary of the invention
The objective of the invention is provides a kind of dewatering of mud for overcoming above-mentioned the deficiencies in the prior art part.This method comprises excavation hole groove, the precipitation well is set, and in the middle of groove electrode is set, and adopts electrophoretic method to make the water drive in the mud arrive in the dehydration of well pipe; Reinforced concrete heatable adobe sleeping platform groove is set, and the method that adopts vacuum-dewatering is got rid of the moisture content in the mud, utilize gravity dehydration method and vacuum dehydration method to solve the sludge dewatering problem, the mud actual constituent is the fluid substance of solid, liquid, gas unification, taking gravity method or vacuum method that moisture in the mud is extracted out, is the most effective, the most cheap, mud dewatering method the most completely, accomplish utilization of waste material, change harmful to treasure.
The present invention realizes with following technical scheme: a kind of dewatering of mud is characterized in that: this method comprises excavation hole groove, the precipitation well is set, and in the middle of groove electrode is set, and adopts electrophoretic method that the water drive in the mud is arrived in the dehydration of well pipe; Reinforced concrete heatable adobe sleeping platform groove is set, and the moisture content in the method eliminating mud of employing vacuum-dewatering, specifically carry out as follows:
(1) soil layer of good water permeability area blowdown mud: directly excavation is cheated groove, hole groove depth 4-5 rice, and width 4-5 rice injects the hole groove with mud, the guard rail rod of setting up defences all around, and hang the safety notice board;
(2) the bad soil layer area blowdown mud of water-permeable: the brick barricade of hole trough rim in step (1), fill filter sand layer (500-1000mm is thick), mud is injected the hole groove, the guard rail rod of setting up defences all around, and hang the safety notice board;
(3) mud is injected the hole groove, light-duty precipitation well point is set in groove one side (or both sides); The guard rail rod of setting up defences all around is provided with electrode in the middle of groove, with electrophoretic method the water drive in the mud is arrived in the well point and manage; The guard rail rod of setting up defences all around, and hang the safety notice board;
(4) be arranged on Steel Concrete sludge sump on the support: sludge sump degree of depth 4-5 rice, sludge sump in length and breadth to pump well being set every 2.4 meters, pump well diameter 500-600mm, the pump well degree of depth by sludge sump at the bottom of downward 500mm;
(5) chimney filter is set in the pump well of sludge sump: chimney filter is length 500mm (at the bottom of being no more than sludge sump) in pump well, makes with the weldless steel tube of diameter 48mm or 51mm; Bore the circular hole of 8-10mm diameter on the chimney filter every 50mm, become quincuncial arrangement; Around the chimney filter with parcels such as burlaps as filter screen, fill the medium coarse sand filtering layer in the pump well around the chimney filter; The weldering of chimney filter upper port is dead, lower end and well point pipe coupling, well point pipe pass and are embedded in the Steel Concrete middle sleeve, are connected with transparent tube with the underfloor water header of sludge sump, use the bitumen-dipped hemp jam-pack between well point pipe and the sleeve pipe, be connected with transparent tube with the underfloor water header of sludge sump;
(6) on same direction, open the hole of diameter 40-42mm on the water header every 2.4m, weld same towards, diameter 48mm, the short tube of length 150mm, link to each other with the transparent plastics short tube between short tube and the well point pipe, firm with the iron wire colligation, the weldering of water header one end is dead, and the other end links to each other with vacuum pump, water pump;
(7) before injecting sludge sump, be not less than the thick medium coarse sand of 500mm at the full bedding thickness in sludge sump bottom earlier.
Advantage of the present invention is: this method comprises excavation hole groove, the precipitation well is set, and in the middle of groove electrode is set, and adopts electrophoretic method to make the water drive in the mud arrive in the dehydration of well pipe; Reinforced concrete heatable adobe sleeping platform groove is set, and the method that adopts vacuum-dewatering is got rid of the moisture content in the mud, utilize gravity dehydration method and vacuum dehydration method to solve the sludge dewatering problem, take gravity method or vacuum method that moisture in the mud is extracted out, be the most effective, the most cheap, mud dewatering method are the most completely accomplished utilization of waste material, change harmful to treasure.
Embodiment
Embodiment,
This method comprises excavation hole groove, the precipitation well is set, and in the middle of groove electrode is set, and adopts electrophoretic method that the water drive in the mud is arrived in the dehydration of well pipe; Reinforced concrete heatable adobe sleeping platform groove is set, and the moisture content in the method eliminating mud of employing vacuum-dewatering, specifically carry out as follows:
(1) soil layer of good water permeability area blowdown mud: directly excavation is cheated groove, hole groove depth 4-5 rice, and width 4-5 rice injects the hole groove with mud, the guard rail rod of setting up defences all around, and hang the safety notice board;
(2) the bad soil layer area blowdown mud of water-permeable: the brick barricade of hole trough rim in step (1), fill filter sand layer (500-1000mm is thick), mud is injected the hole groove, the guard rail rod of setting up defences all around, and hang the safety notice board;
(3) mud is injected the hole groove, light-duty precipitation well point is set in groove one side (or both sides); The guard rail rod of setting up defences all around is provided with electrode in the middle of groove, with electrophoretic method the water drive in the mud is arrived in the well point and manage; The guard rail rod of setting up defences all around, and hang the safety notice board;
(4) be arranged on Steel Concrete sludge sump on the support: sludge sump degree of depth 4-5 rice, sludge sump in length and breadth to pump well being set every 2.4 meters, pump well diameter 500-600mm, the pump well degree of depth by sludge sump at the bottom of downward 500mm;
(5) chimney filter is set in the pump well of sludge sump: chimney filter is length 500mm (at the bottom of being no more than sludge sump) in pump well, makes with the weldless steel tube of diameter 48mm or 51mm; Bore the circular hole of 8-10mm diameter on the chimney filter every 50mm, become quincuncial arrangement; Around the chimney filter with parcels such as burlaps as filter screen, fill the medium coarse sand filtering layer in the pump well around the chimney filter; The weldering of chimney filter upper port is dead, lower end and well point pipe coupling, well point pipe pass and are embedded in the Steel Concrete middle sleeve, are connected with transparent tube with the underfloor water header of sludge sump, use the bitumen-dipped hemp jam-pack between well point pipe and the sleeve pipe, be connected with transparent tube with the underfloor water header of sludge sump;
(6) on same direction, open the hole of diameter 40-42mm on the water header every 2.4m, weld same towards, diameter 48mm, the short tube of length 150mm, link to each other with the transparent plastics short tube between short tube and the well point pipe, firm with the iron wire colligation, the weldering of water header one end is dead, and the other end links to each other with vacuum pump, water pump;
(7) before injecting sludge sump, be not less than the thick medium coarse sand of 500mm at the full bedding thickness in sludge sump bottom earlier.
Claims (1)
1. the dewatering of a mud is characterized in that: this method comprises excavation hole groove, the precipitation well is set, and in the middle of groove electrode is set, and adopts electrophoretic method that the water drive in the mud is arrived in the dehydration of well pipe; Reinforced concrete heatable adobe sleeping platform groove is set, and the moisture content in the method eliminating mud of employing vacuum-dewatering, specifically carry out as follows:
(1) soil layer of good water permeability area blowdown mud: directly excavation is cheated groove, hole groove depth 4-5 rice, and width 4-5 rice injects the hole groove with mud, the guard rail rod of setting up defences all around, and hang the safety notice board;
(2) the bad soil layer area blowdown mud of water-permeable: the brick barricade of hole trough rim in step (1), fill filter sand layer (500-1000mm is thick), mud is injected the hole groove, the guard rail rod of setting up defences all around, and hang the safety notice board;
(3) mud is injected the hole groove, light-duty precipitation well point is set in groove one side (or both sides); The guard rail rod of setting up defences all around is provided with electrode in the middle of groove, with electrophoretic method the water drive in the mud is arrived in the well point and manage; The guard rail rod of setting up defences all around, and hang the safety notice board;
(4) be arranged on Steel Concrete sludge sump on the support: sludge sump degree of depth 4-5 rice, sludge sump in length and breadth to pump well being set every 2.4 meters, pump well diameter 500-600mm, the pump well degree of depth by sludge sump at the bottom of downward 500mm;
(5) chimney filter is set in the pump well of sludge sump: chimney filter is length 500mm (at the bottom of being no more than sludge sump) in pump well, makes with the weldless steel tube of diameter 48mm or 51mm; Bore the circular hole of 8-10mm diameter on the chimney filter every 50mm, become quincuncial arrangement; Around the chimney filter with parcels such as burlaps as filter screen, fill the medium coarse sand filtering layer in the pump well around the chimney filter; The weldering of chimney filter upper port is dead, lower end and well point pipe coupling, well point pipe pass and are embedded in the Steel Concrete middle sleeve, are connected with transparent tube with the underfloor water header of sludge sump, use the bitumen-dipped hemp jam-pack between well point pipe and the sleeve pipe, be connected with transparent tube with the underfloor water header of sludge sump;
(6) on same direction, open the hole of diameter 40-42mm on the water header every 2.4m, weld same towards, diameter 48mm, the short tube of length 150mm, link to each other with the transparent plastics short tube between short tube and the well point pipe, firm with the iron wire colligation, the weldering of water header one end is dead, and the other end links to each other with vacuum pump, water pump;
(7) before injecting sludge sump, be not less than the thick medium coarse sand of 500mm at the full bedding thickness in sludge sump bottom earlier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110222130.6A CN102267793B (en) | 2011-07-28 | 2011-07-28 | Dehydrating method for sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110222130.6A CN102267793B (en) | 2011-07-28 | 2011-07-28 | Dehydrating method for sludge |
Publications (2)
| Publication Number | Publication Date |
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| CN102267793A true CN102267793A (en) | 2011-12-07 |
| CN102267793B CN102267793B (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110222130.6A Expired - Fee Related CN102267793B (en) | 2011-07-28 | 2011-07-28 | Dehydrating method for sludge |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814079A (en) * | 2012-08-31 | 2012-12-12 | 河海大学 | Concentration system for rapidly concentrating slurry |
| CN105036508A (en) * | 2015-06-12 | 2015-11-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for solidifying sludge by virtue of vacuum electric osmosis combined dynamic load |
| CN109179966A (en) * | 2018-09-18 | 2019-01-11 | 北京中岩大地科技股份有限公司 | A kind of apparatus and method that direct current decontaminates the dehydration of factory's waste residue in conjunction with gravity |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311133A (en) * | 2008-02-05 | 2008-11-26 | 陈江涛 | Tank type electroosmosis sludge soil reproducing method and device thereof |
-
2011
- 2011-07-28 CN CN201110222130.6A patent/CN102267793B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311133A (en) * | 2008-02-05 | 2008-11-26 | 陈江涛 | Tank type electroosmosis sludge soil reproducing method and device thereof |
Non-Patent Citations (1)
| Title |
|---|
| 徐晓军等: "《固体废物污染控制原理与资源化技术》", 31 January 2007, article "污泥处理与资源化", pages: 270-271 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814079A (en) * | 2012-08-31 | 2012-12-12 | 河海大学 | Concentration system for rapidly concentrating slurry |
| CN102814079B (en) * | 2012-08-31 | 2015-03-25 | 河海大学 | Concentration system for rapidly concentrating slurry |
| CN105036508A (en) * | 2015-06-12 | 2015-11-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for solidifying sludge by virtue of vacuum electric osmosis combined dynamic load |
| CN109179966A (en) * | 2018-09-18 | 2019-01-11 | 北京中岩大地科技股份有限公司 | A kind of apparatus and method that direct current decontaminates the dehydration of factory's waste residue in conjunction with gravity |
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| Publication number | Publication date |
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| CN102267793B (en) | 2014-04-16 |
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Granted publication date: 20140416 Termination date: 20180728 |