Based on a comprehensive examination of land area, civil engineering investment, maintenance management, operating costs, and system stability, the two-stage DTRO landfill leachate treatment process is mainly based on the following points:
(1) Adopting two-stage DTRO, it can operate stably and meet the discharge standards, suitable for the treatment of leachate in the entire life cycle of landfill sites;
(2) Make full use of landfill resources, use landfill sites as the final disposal sites for pollutants, save construction investment and land occupation, and avoid pollution diffusion;
(3) The two-level DTRO is easy to operate and maintain, with standardized maintenance operations, making it easy for maintenance personnel to manage, reducing the need for operators, and saving labor costs;