CN101172749A - Solidifying agent for solidifying and stabilizing treatment of generated dewatered sludge in sewage plant - Google Patents
Solidifying agent for solidifying and stabilizing treatment of generated dewatered sludge in sewage plant Download PDFInfo
- Publication number
- CN101172749A CN101172749A CNA2007101338759A CN200710133875A CN101172749A CN 101172749 A CN101172749 A CN 101172749A CN A2007101338759 A CNA2007101338759 A CN A2007101338759A CN 200710133875 A CN200710133875 A CN 200710133875A CN 101172749 A CN101172749 A CN 101172749A
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- gypsum
- lime
- cement
- curing
- flyash
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Treatment Of Sludge (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention relates to curing agent used for curing and stabilizing dewatered sludge produced by a sewage plant. The invention is characterized in that curing material and assistant curing material bentonite are added by weight in the dewatered sludge, and each component is mixed evenly, and the weight percentage of each component is 30 to 80 percent of sludge, 15 to 30 percent of curing material, and 5 to 40 percent of bentonite. The curing material is formed by concrete, lime, fly ash and gypsum by weight. The invention has the advantages that the disposed sludge can be disposed by burying to be as fillings for the using of renewable recources. The curing agent can improve the high water content and the low intensity of the sewage, and has the advantages of increasing curing effect, reducing curing material use amount and reducing disposal cost. The compositions of the curing agent of concrete, fly ash, lime, gypsum and bentonite have wide distribution and low price with finished produces selling, thereby realizing the industrialization of sludge curing and stabilizing techniques.
Description
Technical field
What the present invention relates to is that a kind of dewatered sludge that Sewage Plant is produced is cured/employed solidifying agent during stabilization treatment.By this solidifying agent be cured/mud after the stabilization treatment can satisfy the requirement that landfill is disposed, and also can be used as general soil material and uses, and belongs to the resource environment field.
Background technology
The disposal of mud at present is mainly agricultural to transfer to, burning disposal and landfill yard landfill.It is agricultural that heavy metals exceeding standard in the mud has limited mud.Burning disposal investment and working cost are bigger.Mud is sent to sanitary filling field carries out the landfill disposal, because water ratio height, the mechanical property of mud are poor, undressed mud directly enters the engineering project disaster that landfill yard tends to cause landfill yards such as landslide.Mud is because the water ratio height, the organic content height, the inorganic solid particles composition is few, and it mainly is the hydrated product that relies on hydrated reaction of cement to form that curing/stabilizing is handled the formed intensity in back, so just need to consume a large amount of cement and could obtain certain intensity, so its processing costs is higher.
Summary of the invention
The objective of the invention is a large amount of mud of producing in the sewage disposal for solving, it is cured/the stabilization treatment solidifying agent, the mud after the processing can satisfy the requirement of landfill disposal or recycling.
Technical scheme of the present invention: it is characterized in that adding by weight proportion in dewatered sludge the auxiliary solidify material wilkinite of solidify material, with each component mixing and stirring, the shared weight percent of each component is:
Mud 30～80%,
Solidify material 15～30%,
Wilkinite 5～40%;
Above-mentioned solidify material is by cement, lime, flyash and gypsum, and each moiety mass ratio is a cement: lime: flyash: gypsum=(13-18): (1-4): (1-3): (1-3).
Advantage of the present invention and effect are: in dewatered sludge, add a certain proportion of solidify material, and
Add a certain proportion of wilkinite as auxiliary solidify material, the hydrate that the solidify material hydration reaction produces and the cementation of wilkinite mineral form skeleton in mud, improve the intensity of solidification sludge, utilize the stable and sealing process of hydrate simultaneously, reduce the harm of mud environment to pollutent.And it specifically also has following characteristics: (1) processing cost significantly reduces: owing to increased the skeleton composition in the mud by adding wilkinite, can significantly reduce the solidify material consumption, thereby reduce the cost of handling; (2) composition cement, lime, flyash, gypsum, the wilkinite of solidifying agent are a kind of mineral wealth of extensive distribution, also have finished product to sell, and are convenient to realize the industrialization of sludge curing technology; (3) the outlet diversification after the sludge treatment: present method can be according to actual needs, makes that by optimizing the material addition both can carry out landfill after the sludge treatment disposes, and also can carry out recycling, as cap rock or the embankment material as landfill yard;
Embodiment
Embodiment 1:
Each component of the present invention mixes by following weight percent and forms:
Mud 65%
Solidify material 15%
Wilkinite 20%
Above-mentioned solidify material is by cement, lime, flyash and gypsum, and the weight ratio between them is a cement: lime: flyash: gypsum=14: 3: 2: 1.
According to this proportioning, in mud per ton, add the solidify material of 142.9kg, the wilkinite mixing and stirring of 285.7kg, 7 days unconfined compression strengths of the mud after the processing can reach 50kPa, and coefficient of permeability is less than 10
-7Cm/s can satisfy and carry out that landfill is disposed or as the needs of landfill yard earthing.Directly adopt the method for handling than not adding wilkinite, reach identical effect and can save nearly 4 times expense.
Embodiment 2:
Each component of the present invention mixes by following weight percent and forms:
Mud 60%
Solidify material 20%
Wilkinite 20%.
Above-mentioned solidify material is by cement, lime, flyash and gypsum, and the weight ratio between them is a cement: lime: flyash: gypsum=16: 2: 1: 1.
Utilize this proportioning, in mud per ton, add the 333.3kg solidify material, the wilkinite mixing and stirring of 333.3kg, 7 days unconfined compression strengths of the mud after the processing can reach 100kPa.Can satisfy the requirement of banketing,, reach identical effect and can save nearly 5 times expense than not adding the method that wilkinite is directly handled as common engineering.
Embodiment 3:
Each component of the present invention mixes by following weight percent and forms:
Mud 30%
Solidify material 30%
Wilkinite 40%
Above-mentioned solidify material is by cement, lime, flyash and gypsum, and the weight ratio between them is a cement: lime: flyash: gypsum=13: 4: 3: 3.
According to this proportioning, get mud 300kg, solidify material 300kg, with wilkinite 400Kg mixing and stirring, 7 days unconfined compression strengths of mud after the processing can reach 50kPa, and coefficient of permeability is less than 10-7cm/s, can satisfy to carry out that landfill is disposed or as the needs of landfill yard earthing.Directly adopt the method for handling than not adding wilkinite, reach identical effect and can save nearly 4 times expense.
Embodiment 4:
Each component of the present invention mixes by following weight percent and forms:
Mud 80%
Solidify material 15%
Wilkinite 5%
Above-mentioned solidify material is by cement, lime, flyash and gypsum, and the weight ratio between them is a cement: lime: flyash: gypsum=18: 1: 1: 3.
Utilize this proportioning, get mud 800kg, solidify material, 15kg and wilkinite 5kg mixing and stirring, 7 days unconfined compression strengths of the mud after the processing can reach 100kPa.Can satisfy the requirement of banketing,, reach identical effect and can save nearly 5 times expense than not adding the method that wilkinite is directly handled as common engineering.
To mud be cured/mechanism that stabilization treatment improves intensity mainly is that the hydrated calcium silicate that hydrated reaction of cement generates produces cementation to solid waste particle.The present invention realizes reducing the solidify material consumption by add a kind of sludge solidifying agent in mud, reduces the target of processing cost.And the solidifying agent that is adopted has wide material sources, cheap, characteristics with moulding product, is convenient to realize the industrialization of sludge curing/stabilizing treatment technology.
Claims (5)
1. the dewatered sludge of Sewage Plant generation is cured/the stabilization treatment solidifying agent, it is characterized in that adding by weight proportion in dewatered sludge solidify material and auxiliary solidify material wilkinite, and with each component mixing and stirring, the shared weight percent of each component is:
Mud 30～80%,
Solidify material 15～30%,
Wilkinite 5～40%;
Above-mentioned solidify material is by cement, lime, flyash and gypsum, and each moiety mass ratio is a cement: lime: flyash: gypsum=(13-18): (1-4): (1-3): (1-3).
2. the dewatered sludge that Sewage Plant according to claim 1 produces is cured/the stabilization treatment solidifying agent, it is characterized in that the shared weight percent of each component:
Mud 65%,
Solidify material 15%,
Wilkinite 20%;
Above-mentioned solidify material is by cement, lime, flyash and gypsum, and the weight ratio between them is a cement: lime: flyash: gypsum=14: 3: 2: 1.
3. the dewatered sludge that Sewage Plant according to claim 1 produces is cured/the stabilization treatment solidifying agent, it is characterized in that the shared weight percent of each component:
Mud 60%,
Solidify material 20%,
Wilkinite 20%;
Above-mentioned solidify material is by cement, lime, flyash and gypsum, and the weight ratio between them is a cement: lime: flyash: gypsum=16: 2: 1: 1.
4. the dewatered sludge that Sewage Plant according to claim 1 produces is cured/the stabilization treatment solidifying agent, it is characterized in that the shared weight percent of each component:
Mud 30%,
Solidify material 30%,
Wilkinite 40%,
Above-mentioned solidify material is by cement, lime, flyash and gypsum, and the weight ratio between them is a cement: lime: flyash: gypsum=13: 4: 3: 3.
5. the dewatered sludge that Sewage Plant according to claim 1 produces is cured/the stabilization treatment solidifying agent, it is characterized in that the shared weight percent of each component:
Mud 80%,
Solidify material 15%,
Wilkinite 5%,
Above-mentioned solidify material is by cement, lime, flyash and gypsum, and the weight ratio between them is a cement: lime: flyash: gypsum=18: 1: 1: 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101338759A CN100522854C (en) | 2007-10-12 | 2007-10-12 | Solidifying agent for solidifying and stabilizing treatment of generated dewatered sludge in sewage plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101338759A CN100522854C (en) | 2007-10-12 | 2007-10-12 | Solidifying agent for solidifying and stabilizing treatment of generated dewatered sludge in sewage plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101172749A true CN101172749A (en) | 2008-05-07 |
| CN100522854C CN100522854C (en) | 2009-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101338759A Expired - Fee Related CN100522854C (en) | 2007-10-12 | 2007-10-12 | Solidifying agent for solidifying and stabilizing treatment of generated dewatered sludge in sewage plant |
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| CN (1) | CN100522854C (en) |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805104A (en) * | 2010-04-27 | 2010-08-18 | 河海大学 | Soil treatment method for dredged sediment |
| CN101955345A (en) * | 2010-09-29 | 2011-01-26 | 江苏艾特克环境工程设计研究院有限公司 | Neutral inorganic composite material for dehydration, solidification and modification of high water content sludge |
| CN101633549B (en) * | 2009-08-31 | 2011-09-07 | 江汉大学 | Sludge conditioner and sludge dewatering method thereof |
| CN102408179A (en) * | 2011-07-25 | 2012-04-11 | 江苏东方生态清淤工程有限公司 | Dewatered sludge solidifying agent |
| CN102424511A (en) * | 2011-09-02 | 2012-04-25 | 重庆大学 | Solidification treatment method for sludge of urban sewage plant |
| CN102659294A (en) * | 2012-05-23 | 2012-09-12 | 重庆大学 | Method for solidifying sludge of urban sewage treatment factory by using ardealite, coal ash and carbide slag |
| WO2013063774A1 (en) * | 2011-11-02 | 2013-05-10 | Empire Technology Development Llc | Solidifying sludge |
| CN103159391A (en) * | 2011-12-08 | 2013-06-19 | 宇星科技发展(深圳)有限公司 | Sludge dewatering solidification treatment method |
| CN103288330A (en) * | 2013-07-10 | 2013-09-11 | 江苏坤泽科技股份有限公司 | Freshwater sludge curing agent |
| CN103979771A (en) * | 2013-02-07 | 2014-08-13 | 株式会社Cmd技术团 | High water-content sludge curing agent using petroleum coke desulfurization gypsum |
| CN104310884A (en) * | 2014-10-08 | 2015-01-28 | 南京大学 | Curing agent for attapulgite reinforced printing and dyeing sludge treatment and curing method thereof |
| CN104478058A (en) * | 2014-11-04 | 2015-04-01 | 沈礼群 | Pond-lake heavy-metal pesticide fertilizer pollutant solidifying removing agent and preparation method thereof |
| CN104609786A (en) * | 2015-01-12 | 2015-05-13 | 枞阳县天筑新型建筑材料有限公司 | Cold-proof outdoor concrete |
| CN105753279A (en) * | 2016-04-15 | 2016-07-13 | 武汉美丽东方环保有限公司 | Silt/sludge solidifying agent and application thereof |
| CN105801056A (en) * | 2016-04-13 | 2016-07-27 | 吴申龙 | Efficient curing agent for treating sewer sludge and preparation method of efficient curing agent |
| CN105819798A (en) * | 2015-01-04 | 2016-08-03 | 三川德青科技有限公司 | Rapid-hardening high-strength sludge consolidation agent and preparation method thereof |
| CN106082903A (en) * | 2016-06-17 | 2016-11-09 | 武汉大学 | A kind of dredging silt composite curing agent |
| CN106277663A (en) * | 2016-04-29 | 2017-01-04 | 天津城建大学 | Sludge solidifying agent and application, sludge curing soil |
| CN107473684A (en) * | 2017-09-11 | 2017-12-15 | 广州中科地化环保工程有限公司 | A kind of creek deposit environment-friendly treatment agent |
| CN107586003A (en) * | 2017-08-22 | 2018-01-16 | 北京融达环科新材料科技有限公司 | Sludge treating agent and method for sludge treatment |
| CN108623233A (en) * | 2018-05-23 | 2018-10-09 | 成都恩承科技股份有限公司 | A kind of curing agent and its application for the processing of sulfonation well drilling detritus |
| CN112390484A (en) * | 2020-11-24 | 2021-02-23 | 肇庆市武大环境技术研究院 | Heavy metal sludge modifier, preparation method thereof and application thereof in heavy metal sludge consolidation |
| CN112408733A (en) * | 2020-11-24 | 2021-02-26 | 肇庆市武大环境技术研究院 | Sludge solidification method |
| CN114940605A (en) * | 2022-06-15 | 2022-08-26 | 河南建博环保科技研究院有限公司 | Method for preparing baking-free lightweight aggregate from papermaking sludge and application |
| CN117049851A (en) * | 2023-06-30 | 2023-11-14 | 山东大卫国际建筑设计有限公司 | Curing agent for building slag water stable layer base material and preparation method thereof |
| CN117819889A (en) * | 2024-01-03 | 2024-04-05 | 中国长江三峡集团有限公司 | Composite bentonite, bentonite pad formed by composite bentonite and river slope protection |
-
2007
- 2007-10-12 CN CNB2007101338759A patent/CN100522854C/en not_active Expired - Fee Related
Cited By (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101633549B (en) * | 2009-08-31 | 2011-09-07 | 江汉大学 | Sludge conditioner and sludge dewatering method thereof |
| CN101805104A (en) * | 2010-04-27 | 2010-08-18 | 河海大学 | Soil treatment method for dredged sediment |
| CN101805104B (en) * | 2010-04-27 | 2012-11-28 | 河海大学 | Soil treatment method for dredged sediment |
| CN101955345A (en) * | 2010-09-29 | 2011-01-26 | 江苏艾特克环境工程设计研究院有限公司 | Neutral inorganic composite material for dehydration, solidification and modification of high water content sludge |
| CN101955345B (en) * | 2010-09-29 | 2013-04-17 | 江苏艾特克环境工程设计研究院有限公司 | Neutral inorganic composite material for dehydration, solidification and modification of high water content sludge |
| CN102408179A (en) * | 2011-07-25 | 2012-04-11 | 江苏东方生态清淤工程有限公司 | Dewatered sludge solidifying agent |
| CN102424511A (en) * | 2011-09-02 | 2012-04-25 | 重庆大学 | Solidification treatment method for sludge of urban sewage plant |
| WO2013063774A1 (en) * | 2011-11-02 | 2013-05-10 | Empire Technology Development Llc | Solidifying sludge |
| US9382143B2 (en) | 2011-11-02 | 2016-07-05 | Empire Technology Development Llc | Solidifying sludge |
| CN103159391A (en) * | 2011-12-08 | 2013-06-19 | 宇星科技发展(深圳)有限公司 | Sludge dewatering solidification treatment method |
| CN102659294A (en) * | 2012-05-23 | 2012-09-12 | 重庆大学 | Method for solidifying sludge of urban sewage treatment factory by using ardealite, coal ash and carbide slag |
| CN103979771B (en) * | 2013-02-07 | 2016-03-30 | 株式会社Cmd技术团 | Utilize the high-moisture-contensludge sludge solidifying agent of petroleum coke desulfurated plaster |
| CN103979771A (en) * | 2013-02-07 | 2014-08-13 | 株式会社Cmd技术团 | High water-content sludge curing agent using petroleum coke desulfurization gypsum |
| CN103288330A (en) * | 2013-07-10 | 2013-09-11 | 江苏坤泽科技股份有限公司 | Freshwater sludge curing agent |
| CN104310884B (en) * | 2014-10-08 | 2017-02-08 | 南京大学 | Curing agent for attapulgite reinforced printing and dyeing sludge treatment and curing method thereof |
| CN104310884A (en) * | 2014-10-08 | 2015-01-28 | 南京大学 | Curing agent for attapulgite reinforced printing and dyeing sludge treatment and curing method thereof |
| CN104478058A (en) * | 2014-11-04 | 2015-04-01 | 沈礼群 | Pond-lake heavy-metal pesticide fertilizer pollutant solidifying removing agent and preparation method thereof |
| CN104478058B (en) * | 2014-11-04 | 2016-03-30 | 沈礼群 | A kind of Gou Tang lake heavy metal agriculture chemical pollutes solidification remover and preparation method thereof |
| CN105819798A (en) * | 2015-01-04 | 2016-08-03 | 三川德青科技有限公司 | Rapid-hardening high-strength sludge consolidation agent and preparation method thereof |
| CN105819798B (en) * | 2015-01-04 | 2018-05-22 | 三川德青科技有限公司 | A kind of quick setting and high strength sludge consolidating agent and preparation method thereof |
| CN104609786A (en) * | 2015-01-12 | 2015-05-13 | 枞阳县天筑新型建筑材料有限公司 | Cold-proof outdoor concrete |
| CN105801056A (en) * | 2016-04-13 | 2016-07-27 | 吴申龙 | Efficient curing agent for treating sewer sludge and preparation method of efficient curing agent |
| CN105753279B (en) * | 2016-04-15 | 2018-05-22 | 武汉美丽东方环保有限公司 | A kind of silt/sludge solidifying agent and its application method |
| CN105753279A (en) * | 2016-04-15 | 2016-07-13 | 武汉美丽东方环保有限公司 | Silt/sludge solidifying agent and application thereof |
| CN106277663A (en) * | 2016-04-29 | 2017-01-04 | 天津城建大学 | Sludge solidifying agent and application, sludge curing soil |
| CN106082903A (en) * | 2016-06-17 | 2016-11-09 | 武汉大学 | A kind of dredging silt composite curing agent |
| CN107586003A (en) * | 2017-08-22 | 2018-01-16 | 北京融达环科新材料科技有限公司 | Sludge treating agent and method for sludge treatment |
| CN107473684A (en) * | 2017-09-11 | 2017-12-15 | 广州中科地化环保工程有限公司 | A kind of creek deposit environment-friendly treatment agent |
| CN108623233A (en) * | 2018-05-23 | 2018-10-09 | 成都恩承科技股份有限公司 | A kind of curing agent and its application for the processing of sulfonation well drilling detritus |
| CN112390484A (en) * | 2020-11-24 | 2021-02-23 | 肇庆市武大环境技术研究院 | Heavy metal sludge modifier, preparation method thereof and application thereof in heavy metal sludge consolidation |
| CN112408733A (en) * | 2020-11-24 | 2021-02-26 | 肇庆市武大环境技术研究院 | Sludge solidification method |
| CN114940605A (en) * | 2022-06-15 | 2022-08-26 | 河南建博环保科技研究院有限公司 | Method for preparing baking-free lightweight aggregate from papermaking sludge and application |
| CN117049851A (en) * | 2023-06-30 | 2023-11-14 | 山东大卫国际建筑设计有限公司 | Curing agent for building slag water stable layer base material and preparation method thereof |
| CN117819889A (en) * | 2024-01-03 | 2024-04-05 | 中国长江三峡集团有限公司 | Composite bentonite, bentonite pad formed by composite bentonite and river slope protection |
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| CN100522854C (en) | 2009-08-05 |
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