A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Self-repairing anti-seepage liner as well as preparation method and application thereof
The invention belongs to the field of anti-seepage materials, and particularly relates to a self-repairing anti-seepage liner as well as a preparation method and application thereof. The invention provides a self-repairing anti-seepage liner. The self-repairing anti-seepage liner comprises bentonite, a self-repairing agent, a non-woven fabric, a woven fabric and a covering film. According to the anti-seepage liner with the intrinsic repairing function, when a geomembrane generates cracks and leachate of a refuse landfill permeates into the anti-seepage liner, the preset microbial repairing agent starts to react under the action of a nitrogen source provided in the leachate to generate calcium carbonate precipitates to repair the cracks, and therefore the cracks are repaired; the method is simple to operate and belongs to a pre-prevention measure for preventing leakage of the refuse landfill. The pollution of heavy metals, organic matters and the like is adsorbed while further occurrence of leakage is prevented.
本发明属于防渗材料领域，具体涉及一种自修复防渗衬垫及其制备方法和应用。本发明提供一种自修复防渗衬垫，包括膨润土、自修复剂、无纺织物、有纺织物、覆膜。本发明是一种具有本征修复防渗衬垫，当土工膜产生裂缝时，垃圾填埋场的渗滤液渗入防渗衬垫时，预置的微生物修复剂就会利用渗滤液中提供氮源的作用下开始反应生成碳酸钙沉淀修复裂缝，在阻止渗漏的进一步发生的同时达到吸附重金属、有机质等污染，该方法操作简单，属于垃圾填埋场防渗漏的一种事先预防型措施。
Self-repairing anti-seepage liner as well as preparation method and application thereof
The invention belongs to the field of anti-seepage materials, and particularly relates to a self-repairing anti-seepage liner as well as a preparation method and application thereof. The invention provides a self-repairing anti-seepage liner. The self-repairing anti-seepage liner comprises bentonite, a self-repairing agent, a non-woven fabric, a woven fabric and a covering film. According to the anti-seepage liner with the intrinsic repairing function, when a geomembrane generates cracks and leachate of a refuse landfill permeates into the anti-seepage liner, the preset microbial repairing agent starts to react under the action of a nitrogen source provided in the leachate to generate calcium carbonate precipitates to repair the cracks, and therefore the cracks are repaired; the method is simple to operate and belongs to a pre-prevention measure for preventing leakage of the refuse landfill. The pollution of heavy metals, organic matters and the like is adsorbed while further occurrence of leakage is prevented.
本发明属于防渗材料领域，具体涉及一种自修复防渗衬垫及其制备方法和应用。本发明提供一种自修复防渗衬垫，包括膨润土、自修复剂、无纺织物、有纺织物、覆膜。本发明是一种具有本征修复防渗衬垫，当土工膜产生裂缝时，垃圾填埋场的渗滤液渗入防渗衬垫时，预置的微生物修复剂就会利用渗滤液中提供氮源的作用下开始反应生成碳酸钙沉淀修复裂缝，在阻止渗漏的进一步发生的同时达到吸附重金属、有机质等污染，该方法操作简单，属于垃圾填埋场防渗漏的一种事先预防型措施。
Self-repairing anti-seepage liner as well as preparation method and application thereof
一种自修复防渗衬垫及其制备方法和应用
FU FENG (author) / WANG XIAO (author) / ZHANG PENGCHENG (author) / FANG YUANYUAN (author) / QI JINGLEI (author) / LI BIN (author)
2024-03-26
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
/
B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
,
Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse
/
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
/
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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