CN102583950A - Mobile contaminated bottom mud bag pocket dewatering and volume reduction treatment method - Google Patents

Mobile contaminated bottom mud bag pocket dewatering and volume reduction treatment method Download PDF

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Publication number
CN102583950A
CN102583950A CN2012100384731A CN201210038473A CN102583950A CN 102583950 A CN102583950 A CN 102583950A CN 2012100384731 A CN2012100384731 A CN 2012100384731A CN 201210038473 A CN201210038473 A CN 201210038473A CN 102583950 A CN102583950 A CN 102583950A
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CN
China
Prior art keywords
mud
bed mud
bag
dehydration
portable
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CN2012100384731A
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Chinese (zh)
Inventor
张景辉
刘朝辉
邵兆俊
李野
王文茜
杨伟
卢丹
西伟力
王旭东
毕涛
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天津生态城环保有限公司
天津生态城水务有限公司
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Application filed by 天津生态城环保有限公司, 天津生态城水务有限公司 filed Critical 天津生态城环保有限公司
Priority to CN2012100384731A priority Critical patent/CN102583950A/en
Publication of CN102583950A publication Critical patent/CN102583950A/en

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Abstract

The invention discloses a mobile contaminated bottom mud bag pocket dewatering and volume reduction treatment method which is characterized by comprising the following steps of: transporting contaminated bottom mud in a river or water reservoir to closed pipeline mixers via an environment-friendly sand dredger or mud pump, throwing a stabilizing and curing agent into the first pipeline mixer, throwing a flocculating and conditioning agent into the second pipeline mixer, finally dewatering and reducing volume of bottom mud in geotex pipe pockets, and curing and stabilizing bottom mud contaminates. After the bottom mud in the geotex pipe pockets is solidified for 7-50 days, the moisture content of the bottom mud reaches less than 55%. The bottom mud in the bag pockets is transported off the site by using a mobile car body. Treatment or resource utilization reaches national relative standards. The technological innovation bridge spot of the method is 'environment-friendly sand dredging + agent + geotex bag pocket dewatering + natural drying of bottom mud + mobile car body'. Not only is the sludge treatment amount large during project implementation process, but also no site area is occupied, the technology is simple, and the operating cost is low. Good economic benefits are achieved.

Description

A kind of portable polluted bed mud pipe bag dehydration subtracts holds the improvement method
Technical field
The invention belongs to environmental technology field, relate to a kind of portable polluted bed mud pipe bag dehydration and subtract and hold the improvement method, a kind of specifically adopt environmental dredging to combine the geotextile tube bag dehydration subtracts and holds the method for administering to polluted bed mud.
Background technology
Since the reform and opening-up, the industrial production of China has obtained develop rapidly, but the environmental problem that causes thus is also more and more serious.The effluent sewage that produces in some industrial and mining enterprises' production process is often unprocessed and directly be discharged in river course, the reservoir, causes the pollutent severe overweight in the bed mud, causes serious environmental to pollute.At present, the domestic disposal technology that is used for polluted bed mud mainly contains mikrobe reparation, chemical leaching, elevated temperature heat desorption etc., but such technology often running cost is higher, have the risk of secondary pollution in the governance process.And environmental dredging combines the geotextile tube bag dehydration subtracts and holds that to administer be a kind of new technique to polluted bed mud, to this domestic existing successful case.But; A precondition implementing this technology is to have a large-area pipe bag to stack the place; To some polluted place; Like city inland river or peripheral river course, such place surrounding building is more, land used is nervous, available storage space is less, and common geotextile tube bag dehydration subtracts appearance technology and is difficult to carry out.Patent publication No. is that CN101693590B proposes the method that a kind of heavy metal polluted sludge is handled; Through the environmental dredging adding medicine again with geotextile tube bag combination treatment polluted sludge; This technology not only can make the polluted sludge high-efficiency dehydration subtract appearance, and guarantees polluted sludge ability solidification and stabilization; Shortcoming is big for taking storage space.Patent publication No. is the local dewatered process that CN100413795C proposes urban waters mud; Both mud was transported in the pipe bag through dredging plant; This method facility investment is few, and dehydration is mainly by means of bag wall pressure power and deadweight effect, but the flocculation conditioning of not considering mud is with the reinforcement dehydrating effect; Do not relate to portable transportation problem behind the sludge dewatering in the pipe bag yet, can't resolve a surrounding city land used difficult problem.Utility model patent CN201525797U discloses a kind of portable mud electric osmose dewatering unit; Handle mud through mechanical presses and electric osmose dehydration technique combining method; Though solved portable mud transportation problem and need not to take the stacking place; But mud handling capacity is little, dehydrating effect is bad, directly causes Financial cost height, high, the complex process of energy consumption, and this patent does not relate to the improvement technology of polluted bed mud.Above-mentioned patented technology still exists many deficiencies and shortcoming, is badly in need of the dehydration of a kind of convenient, flexible packaged type polluted bed mud pipe bag at present and subtracts and hold the improvement method, bed mud is carried out environmental dredging, pollutent control and bottom-mud dewatering subtract appearances, the portable transportation is together with each other; Guarantee that not only deposit environment-friendly dredging and high-efficiency dehydration process do not produce secondary pollution; And the equipment one-time investment is few, and technology is simple, need not the occupied ground area; The treating processes energy consumption is low, but recycling.
A kind of portable polluted bed mud pipe bag dehydration of the present invention subtracts to be held the control measures that the improvement method relates to and is " the natural mummification of environmental dredging+medicament+geotextile tube bag dehydration+bed mud+portable car body "; Specifically exactly the geotextile tube bag is placed on the packaged type car body, treat to be transported to outside the venue after bed mud is administered.This method flexible operation, the engineering construction floor space is little, no secondary environmental pollution, improvement time weak point, economically feasible, the bed mud after the treatment and disposal can be realized recycling.
Summary of the invention
The objective of the invention is: to the weak point of existing bed mud pipe bag dewatering; Provide a kind of portable polluted bed mud pipe bag dehydration to subtract and hold the improvement method; Both adopted environmental dredging to be transported to polluted bed mud in the geotextile tube bag that is placed on the removable car body through closed conduit; Through add a certain amount of stabilizing and curing agent and flocculation amendment in the pipeline to dredging, make medicament and bed mud thorough mixing, reaction before getting into the geotextile tube bag, to realize polluted bed mud maximum stability of dehydrating effect and processing pollutent in the geotextile tube bag; At last the bed mud after the geotextile tube bag dehydration on the portable car body is moved to outside the venue, realize the recycling of bed mud.
Above-mentioned purpose of the present invention is to realize through following technical scheme: a kind of portable polluted bed mud pipe bag dehydration subtracts holds the improvement method; It is characterized in that to contaminated bed mud in river course or the reservoir; Through sand dredger or steam piano it is transported in the closed pipeline mixing tank, dredging back bed mud water ratio is about more than 90%; In 2 different line mixers, add a certain proportion of stable curing agent solution and mud flocculation agent conditioning solution through volume pump then; Be transported to dewater in one or more geotextile tube bags after making stabilizing and curing agent and flocculation agent fully mix, react with bed mud and subtract appearance, treat that the geotextile tube bag is filled with back fixed 7~50 days, the processing afterwards water ratio of bed mud is lower than 55%.At last the pipe bag bed mud after fixed on the portable car body is transported to outside the venue, handles or the bed mud recycling according to relevant national standard.
Aforesaid a kind of portable polluted bed mud pipe bag dehydration subtracts holds the improvement method, through sand dredger or steam piano bed mud is transported in the closed conduit mixing tank; Adopting sand dredger is the reamer type environmental dredging.
Aforesaid a kind of portable polluted bed mud pipe bag dehydration subtracts holds the improvement method, and the stable curing agent solution of employing has control pollutent function, and its dosage is 1 ‰~50 ‰ (in butt mud, weight ratios).
Aforesaid a kind of portable polluted bed mud pipe bag dehydration subtracts holds the improvement method; The flocculation amendment that adopts has the flocculation conditioning functions; Comprise a kind of in cationic polyacrylamide, anionic polyacrylamide, the polymeric aluminum etc.; Preferred cationic SEPIGEL 305, its dosage are 1 ‰~5 ‰ (in butt mud, weight ratios).
Aforesaid a kind of portable polluted bed mud pipe bag dehydration subtracts holds the improvement method,, the geotextile tube bag of employing is that monofilament or split yarn or monofilament-split yarn combination of raw material weaves to sew up and form by Vestolen PP 7052 or polythylene resin.The geotextile tube bag of design is wide 2m thus, long 3.5m.
Aforesaid a kind of portable polluted bed mud pipe bag dehydration subtracts holds the improvement method; At first the geotextile tube bag being placed in portable car body fixes; The geotextile tube bag is filled with fixed 7~50 days of back then; Water ratio is lower than 55% behind the geotextile tube bag bottom-mud dewatering, is transported to outside the venue safe handling disposal or recycling at last.
The present invention can be adaptable across portable bed mud pipe bag dehydration; Through using " environmental dredging+medicament+geotextile tube bag dehydration+bed mud nature mummification+portable car body " this technology; To have advantage following in institute: can not cause that secondary pollution, technology are simple, equipment input and working cost be lower; Dehydrating effect is better than traditional mechanical dewatering type, and bed mud is transported to outside the venue to utilize portable car body will dewater afterwards, has solved surrounding city land occupation difficult problem; And carry out treatment and disposal or recycling according to relative national standards.
Description of drawings
The dehydration of the portable polluted bed mud pipe of Fig. 1 bag subtracts holds improvement method synoptic diagram
Embodiment
As shown in Figure 1: as to utilize reamer type environmental dredging ship or steam piano that the bed mud that pollutes in river course or the reservoir is transported in the closed conduit mixing tank; According to 1 ‰~50 ‰ (in butt mud; Weight ratio) dosage utilizes volume pump in the 1st line mixer, to add stabilizing and curing agent, makes to dredge pollutent thorough mixing, reaction in the bed mud.The residence time is greater than stabilizing and curing agent and pollutant reaction time in getting into the 2nd line mixer.Utilize volume pump in the 2nd line mixer, to add bed mud flocculation amendment according to 1 ‰~5 ‰ (in butt mud, weight ratio) dosage then, make bed mud flocculation amendment and dredging bed mud thorough mixing to form floc sedimentation.The residence time is greater than the bed mud flocculation reaction time between the 2nd line mixer of arrival and geotextile tube bag filling mouth.Dredging bed mud after last stable curing and the flocculation treatment charges in one or more geotextile tube bags simultaneously, treat that these geotextile tube bags are full of bed mud after, switch in other geotextile tube bag that does not charge into.Bottom-mud dewatering is after fixed 7~50 days in the geotextile tube bag, and dehydration back bed mud water ratio reaches below 55%, will be transported to outside the venue with bed mud in the pipe bag on the portable car body.
Embodiment 1: certain sewage reservoir polluted bed mud is transported in the line mixer through sand dredger or steam piano, and dredging bed mud water ratio is 93%, and the dredging flow is 450m 3/ h adopts volume pump in different line mixers, to add a certain proportion of stable curing agent solution and flocculant solution; In first line mixer, add a certain amount of stable curing agent solution (dosage is about 3 ‰) earlier through volume pump and mix, react greater than 1min the above time with the dredging bed mud; Volume pump adds flocculant solution (dosage is about 3 ‰) reaction and is about the 1min time in second line mixer again, makes it form floc sedimentation.Through bed mud in the filling pipe bag repeatedly, the fixed dehydration of its geotextile tube bag bed mud is after 10 days, and the bed mud average moisture content is about 53%, and its pollutent control degree is lower than national standard.
Embodiment 2: the geotextile tube bag is designed to: long 3.5m, and wide 2m, design pipe bag can be placed on the portable car body easily like this, its convenient transportation, no floor space, the bed mud storage capacity behind the pipe bag dewatering and coagulating is big; But and bed mud recycling in the pipe bag, as be fired into haydite, brickmaking.

Claims (6)

1. a portable polluted bed mud pipe bag dehydration subtracts appearance improvement method; It is characterized in that concrete steps are: to contaminated bed mud in river course or the reservoir; Through sand dredger or steam piano it is transported in the closed conduit mixing tank, dredging back mud water ratio is about more than 90%; In 2 different line mixers, add a certain proportion of stable curing agent solution and mud flocculation agent conditioning solution through volume pump then; Make stabilizing and curing agent and flocculation agent fully with the dredging pipeline in bed mud be transported to dewater in one or more geotextile tube bags after mixing, reacting and subtract appearance, and make pollutent formation stable state; Treat that the geotextile tube bag is filled with fixed 7~50 days of back, the water ratio of handling the back bed mud is lower than 55%.At last the pipe bag bed mud after the dehydration on the portable car body is transported to outside the venue, handles or the bed mud recycling according to relevant national standard.
2. a kind of portable polluted bed mud pipe bag dehydration according to claim 1 subtracts holds the improvement method, it is characterized in that through sand dredger or steam piano bed mud being transported in the closed conduit mixing tank; Adopting sand dredger is the reamer type environmental dredging.
3. a kind of portable polluted bed mud pipe bag dehydration according to claim 1 subtracts holds the improvement method, it is characterized in that the stable curing agent solution that adopts has control pollutent function, and its dosage is 1 ‰~50 ‰ (in butt mud, weight ratios).
4. a kind of portable polluted bed mud pipe bag dehydration according to claim 1 subtracts holds the improvement method; It is characterized in that the flocculation amendment that adopts has the flocculation conditioning functions; Comprise a kind of in cationic polyacrylamide, anionic polyacrylamide, the polymeric aluminum etc.; Preferred cationic SEPIGEL 305, its dosage are 1 ‰~5 ‰ (in butt mud, weight ratios).
5. said a kind of portable polluted bed mud pipe bag dehydration subtracts and holds the improvement method according to claim 1, and the geotextile tube bag that it is characterized in that adopting is that monofilament or split yarn or monofilament-split yarn combination of raw material weaves to sew up and form by Vestolen PP 7052 or polythylene resin.The geotextile tube bag of design is wide 2m thus, long 3.5m.
6. said a kind of portable polluted bed mud pipe bag dehydration subtracts appearance improvement method according to claim 1; It is characterized in that at first the geotextile tube bag being placed in portable car body fixes; The geotextile tube bag is filled with fixed 7~50 days of back then; Water ratio is lower than 55% behind the geotextile tube bag bottom-mud dewatering, is transported to outside the venue safe handling disposal or recycling at last.
CN2012100384731A 2012-02-21 2012-02-21 Mobile contaminated bottom mud bag pocket dewatering and volume reduction treatment method CN102583950A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102767156A (en) * 2012-08-06 2012-11-07 南京瑞迪建设科技有限公司 Diking method through filling sludge and curing agent into mold bags
CN103894390A (en) * 2013-10-12 2014-07-02 南京科盛环保科技有限公司 Process for governing and repairing polluted sediments of water area
CN104478193A (en) * 2014-12-11 2015-04-01 北京建工环境修复股份有限公司 Efficient dehydration system and dehydration method of soil washing slurry
CN104674814A (en) * 2014-12-30 2015-06-03 河海大学 Construction method for efficient dehydration of geo-tube filled high adhesive content mud
CN105399290A (en) * 2015-11-30 2016-03-16 江苏青禾环境修复有限公司 Rural river channel dredging construction method
CN106495422A (en) * 2016-12-14 2017-03-15 河海大学 A kind of processing method of high organic bed mud and its application of aqueous solution
CN106587566A (en) * 2016-12-14 2017-04-26 河海大学 Treating method for high organic matter bottom mud and application of water solution of high organic matter bottom mud
EP3301078A1 (en) * 2016-09-29 2018-04-04 Vesirakennus Ojanen Oy Method for treating dredged material or sludge and use of the method
CN107973515A (en) * 2017-11-22 2018-05-01 煤科集团杭州环保研究院有限公司 A kind of river environment-protective desilting and movable type sludge thickening system
CN111302587A (en) * 2020-02-21 2020-06-19 宁夏水投环保发展有限公司 Process for treating dredging bottom mud and tail water of lakes, lakes and fish ponds

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1552646A (en) * 2003-06-04 2004-12-08 清华同方股份有限公司 Movable mud mummification treatment system
CN101693590A (en) * 2009-10-12 2010-04-14 天津生态城环保有限公司 Heavy metal polluted sludge treatment method
CN201525797U (en) * 2009-09-11 2010-07-14 宇星科技发展(深圳)有限公司 Movable type sludge electroosmotic dehydration device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1552646A (en) * 2003-06-04 2004-12-08 清华同方股份有限公司 Movable mud mummification treatment system
CN201525797U (en) * 2009-09-11 2010-07-14 宇星科技发展(深圳)有限公司 Movable type sludge electroosmotic dehydration device
CN101693590A (en) * 2009-10-12 2010-04-14 天津生态城环保有限公司 Heavy metal polluted sludge treatment method

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102767156A (en) * 2012-08-06 2012-11-07 南京瑞迪建设科技有限公司 Diking method through filling sludge and curing agent into mold bags
CN102767156B (en) * 2012-08-06 2014-12-03 南京瑞迪建设科技有限公司 Diking method through filling sludge and curing agent into mold bags
CN103894390A (en) * 2013-10-12 2014-07-02 南京科盛环保科技有限公司 Process for governing and repairing polluted sediments of water area
CN103894390B (en) * 2013-10-12 2015-02-04 南京科盛环保科技有限公司 Process for governing and repairing polluted sediments of water area
CN104478193A (en) * 2014-12-11 2015-04-01 北京建工环境修复股份有限公司 Efficient dehydration system and dehydration method of soil washing slurry
CN104674814A (en) * 2014-12-30 2015-06-03 河海大学 Construction method for efficient dehydration of geo-tube filled high adhesive content mud
CN104674814B (en) * 2014-12-30 2016-05-25 河海大学 The high construction method containing the slurry dewatering of sticky amount of a kind of geo-tube filling
CN105399290A (en) * 2015-11-30 2016-03-16 江苏青禾环境修复有限公司 Rural river channel dredging construction method
CN105399290B (en) * 2015-11-30 2018-03-13 江苏青禾环境修复有限公司 A kind of rural area channel cleanout construction method
EP3301078A1 (en) * 2016-09-29 2018-04-04 Vesirakennus Ojanen Oy Method for treating dredged material or sludge and use of the method
CN106495422A (en) * 2016-12-14 2017-03-15 河海大学 A kind of processing method of high organic bed mud and its application of aqueous solution
CN106587566A (en) * 2016-12-14 2017-04-26 河海大学 Treating method for high organic matter bottom mud and application of water solution of high organic matter bottom mud
CN107973515A (en) * 2017-11-22 2018-05-01 煤科集团杭州环保研究院有限公司 A kind of river environment-protective desilting and movable type sludge thickening system
CN111302587A (en) * 2020-02-21 2020-06-19 宁夏水投环保发展有限公司 Process for treating dredging bottom mud and tail water of lakes, lakes and fish ponds

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Application publication date: 20120718