Shandong Chuangwei Concrete Blanket—Drainage Project of a US Mine Waste Dump

Due to long - term mineral mining, the mining area has left serious environmental legacy issues. The open - pit mine is dotted with more than 70 shafts and tunnels, countless disorderly waste dumps, and dilapidated buildings of abandoned copper and sulfur mines. More severely, the wastewater discharged from the abandoned mines contains a large amount of acidic substances and metal elements, posing a serious threat to the water quality of downstream rivers.

At the end of 2018, the environmental governance project of the waste dump area in this mining area was launched. The project team redesigned the drainage channels, enabling the upstream drainage system to bypass the waste dump site, reducing the risk of wastewater pollution from the source. Meanwhile, special anti - corrosion concrete blankets were used for the laying construction of the waste dump area.

The concrete blankets of Shandong Chuangwei fully utilized their characteristics of resistance to acid and alkali corrosion, demonstrating excellent durability in the harsh mining environment. They are also environmentally friendly, ensuring no secondary pollution to the surrounding ecosystem, and their designed service life is as long as 40 years.

Through this governance, the environmental conditions of the abandoned mine have been significantly improved, effectively blocking the pollution of downstream water bodies by wastewater and laying a solid foundation for regional ecological restoration.