Waste Body Investigation and Design of Mining and Environmental Remediation Engineering for a Large-scale Simple Landfill
A large-scale simple landfill built in the early days in south of China occupied a large amount of urban land and caused environmental effect to the surrounding areas.In 2022,the land occupied by the landfill was incorporated into the planning of the industrial land planning.So it was decided to carry out mining and environmental remediation.According to the governance objective,waste body investigation and design of mining and screening engineering were conducted.During the waste body investigation,traditional small-bore drilling for surveying the waste distribution and large-diameter rotary drilling for sampling and testing was used to determine the stock of various types of waste,the quality proportion and characteristics of various screened products from municipal solid waste.In the design of mining and screening engineering,a refined screening process that including three-stage trommel was adopted based on the pollution characteristics of various screened products,achieving the reduction of humus and enhancing its resource utilization.Meanwhile,a rapid detection and quality assessment system for humus based on image recognition and impeller TDR probes was set up for real-time monitoring of the screening performance.Through landfill mining and environmental remediation,about 500 acres of land will be revitalized,promoting the construction of the first urban center development model in China that integrating"environmental remediation-development and construction-industry and city integration-innovation-driven".
simple landfillwaste body investigationrotary drillingmining and screening engineeringhumus quality assessment
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