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Acid control method for metal mine acid dump slope
According to the acid control method for the metal mine acid waste dump side slope, specifically, rainwater and sewage diversion is achieved by arranging an intercepting ditch and a drainage ditch; planting strip ditches are dug, a lime layer is laid for neutralizing and isolating acid, a soil improvement matrix layer and a nutrient soil layer are laid for preventing air from entering slope soil, and meanwhile nutrients are provided for ecological restoration; a horizontal drainage and seepage pipe is arranged at the slope toe, and the underground water level in the slope is lowered; acid-resistant plants of ligustrum lucidum, robinia pseudoacacia and oleander are planted, sulfuric acid is absorbed by means of plant root systems, the acid environment of soil is continuously improved, and ecological restoration is achieved. According to the method, effective control over acidification of the waste dump can be achieved in a short time through the synergistic effect of sewage disposal diversion, physical blocking, engineering rainfall and ecological restoration, the acid control effect is lasting, and the method is simple, convenient, easy to implement, good in acid control timeliness, low in cost, easy to popularize and suitable for popularization and application. The method has a good application prospect in the field of acid control of the metal mine acid waste dump slope.
本发明一种金属矿山酸性排土场边坡的控酸方法，具体通过设置截水沟和排水沟，实现雨污分流；开挖种植条沟，铺设石灰层用于中和及隔离酸，铺设土壤改良基质层和营养土层用于阻隔空气进入坡面土壤中，同时也为生态恢复提供养分；坡脚处设置水平排渗管，降低边坡内部的地下水位；种植女贞、刺槐和夹竹桃耐酸植物，借助植物根系对硫酸进行吸收，持续改良土壤的酸性环境，实现生态的恢复。本发明通过清污分流、物理阻隔、工程降水及生态恢复的协同作用，能在短时间实现对排土场酸化的有效控制，而且控酸效果持久，发明方法简便易实施，控酸时效性好，成本低，易推广，在金属矿山酸性排土场边坡的控酸领域具有很好的应用前景。
Acid control method for metal mine acid dump slope
According to the acid control method for the metal mine acid waste dump side slope, specifically, rainwater and sewage diversion is achieved by arranging an intercepting ditch and a drainage ditch; planting strip ditches are dug, a lime layer is laid for neutralizing and isolating acid, a soil improvement matrix layer and a nutrient soil layer are laid for preventing air from entering slope soil, and meanwhile nutrients are provided for ecological restoration; a horizontal drainage and seepage pipe is arranged at the slope toe, and the underground water level in the slope is lowered; acid-resistant plants of ligustrum lucidum, robinia pseudoacacia and oleander are planted, sulfuric acid is absorbed by means of plant root systems, the acid environment of soil is continuously improved, and ecological restoration is achieved. According to the method, effective control over acidification of the waste dump can be achieved in a short time through the synergistic effect of sewage disposal diversion, physical blocking, engineering rainfall and ecological restoration, the acid control effect is lasting, and the method is simple, convenient, easy to implement, good in acid control timeliness, low in cost, easy to popularize and suitable for popularization and application. The method has a good application prospect in the field of acid control of the metal mine acid waste dump slope.
本发明一种金属矿山酸性排土场边坡的控酸方法，具体通过设置截水沟和排水沟，实现雨污分流；开挖种植条沟，铺设石灰层用于中和及隔离酸，铺设土壤改良基质层和营养土层用于阻隔空气进入坡面土壤中，同时也为生态恢复提供养分；坡脚处设置水平排渗管，降低边坡内部的地下水位；种植女贞、刺槐和夹竹桃耐酸植物，借助植物根系对硫酸进行吸收，持续改良土壤的酸性环境，实现生态的恢复。本发明通过清污分流、物理阻隔、工程降水及生态恢复的协同作用，能在短时间实现对排土场酸化的有效控制，而且控酸效果持久，发明方法简便易实施，控酸时效性好，成本低，易推广，在金属矿山酸性排土场边坡的控酸领域具有很好的应用前景。
Acid control method for metal mine acid dump slope
一种金属矿山酸性排土场边坡的控酸方法
XIAO HUI (author) / YU GUOPING (author) / CHEN YIMIN (author) / ZENG XIANKUN (author) / WANG JINWEI (author)
2023-07-28
Patent
Electronic Resource
Chinese
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