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A platform for research: civil engineering, architecture and urbanism
Method for repairing side slope soil in subsidence area by converting open-pit mining into underground mining
The invention discloses a method for repairing side slope soil in a subsidence area by converting open-pit mining into underground mining. The method comprises the following steps of stripping soil inthe subsidence area to form a stripped subsidence pit; filling a mixture of EDTA, talcum powder and zeolite powder into the stripped subsidence pit, and uniformly covering the bottom of the strippedsubsidence pit with the mixture; filling the stripped subsidence pit with high-quality soil, and conducting treading; and planting sticktight to cover the surface of the high-quality soil. The methodhas the beneficial effects that the contaminated soil is treated by a physical-chemical-plant co-treatment mechanism, the activity and toxicity of heavy metal ions can be effectively reduced, the absorption of plants to heavy metals is reduced, rich nutritional ingredients are provided for growth of the sticktight by high-quality soil, absorption of the sticktight to the composite heavy metal is promoted, and the physicochemical property of the soil can be improved through microorganisms; and by the adoption of the soil remediation method, conversion of the contaminated soil can be rapidly achieved, and secondary pollution is avoided.
本申请公开了一种露天转地下开采塌陷区边坡土壤修复的方法，包括以下步骤：剥离塌陷区域土壤，形成剥离塌陷坑；向剥离塌陷坑内填入EDTA、滑石粉和沸石粉的混合物，并使所述混合物均匀地覆盖剥离塌陷坑的底部；再使用高质量土壤填满剥离塌陷坑，并踩实；种植鬼针草覆盖高质量土壤的表面。本申请的有益效果为：本发明土壤修复的方法以物理‑化学‑植物的协同处理的机制对受污染土壤进行处理，可有效降低重金属离子的活性和毒性，减少植物对重金属的吸收，高质量土壤对鬼针草的生长提供丰富的营养成分，促进鬼针草对复合重金属的吸收，微生物可提高土壤的理化性质；采用本发明土壤修复的方法能快速地实现对污染土壤的转化，且不会产生二次污染。
Method for repairing side slope soil in subsidence area by converting open-pit mining into underground mining
The invention discloses a method for repairing side slope soil in a subsidence area by converting open-pit mining into underground mining. The method comprises the following steps of stripping soil inthe subsidence area to form a stripped subsidence pit; filling a mixture of EDTA, talcum powder and zeolite powder into the stripped subsidence pit, and uniformly covering the bottom of the strippedsubsidence pit with the mixture; filling the stripped subsidence pit with high-quality soil, and conducting treading; and planting sticktight to cover the surface of the high-quality soil. The methodhas the beneficial effects that the contaminated soil is treated by a physical-chemical-plant co-treatment mechanism, the activity and toxicity of heavy metal ions can be effectively reduced, the absorption of plants to heavy metals is reduced, rich nutritional ingredients are provided for growth of the sticktight by high-quality soil, absorption of the sticktight to the composite heavy metal is promoted, and the physicochemical property of the soil can be improved through microorganisms; and by the adoption of the soil remediation method, conversion of the contaminated soil can be rapidly achieved, and secondary pollution is avoided.
本申请公开了一种露天转地下开采塌陷区边坡土壤修复的方法，包括以下步骤：剥离塌陷区域土壤，形成剥离塌陷坑；向剥离塌陷坑内填入EDTA、滑石粉和沸石粉的混合物，并使所述混合物均匀地覆盖剥离塌陷坑的底部；再使用高质量土壤填满剥离塌陷坑，并踩实；种植鬼针草覆盖高质量土壤的表面。本申请的有益效果为：本发明土壤修复的方法以物理‑化学‑植物的协同处理的机制对受污染土壤进行处理，可有效降低重金属离子的活性和毒性，减少植物对重金属的吸收，高质量土壤对鬼针草的生长提供丰富的营养成分，促进鬼针草对复合重金属的吸收，微生物可提高土壤的理化性质；采用本发明土壤修复的方法能快速地实现对污染土壤的转化，且不会产生二次污染。
Method for repairing side slope soil in subsidence area by converting open-pit mining into underground mining
一种露天转地下开采塌陷区边坡土壤修复的方法
XIE CHENGYU (author) / CAO JIE (author) / CHAO LEI (author) / SHI DONGPING (author) / ZHANG XIAOQIANG (author) / LIU GUOJUN (author) / WANG XINFENG (author) / HE LIWEN (author) / NI ZHOU (author) / LI YUHAO (author)
2020-10-09
Patent
Electronic Resource
Chinese
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