Optimization of Leachate Treatment in Low Temperature by DTRO

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Long, Tao^1 ; Xu, Xiaojun^1

Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Yunnan, China^1

关键词: Heating system;    Landfill gas;    Landfill leachate treatment;    Low temperatures;    Operating condition;    Operating pressure;    Optimization method;    Southwest China;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/3/032064/pdf
DOI  :  10.1088/1755-1315/300/3/032064

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The operating conditions of landfill leachate treatment by DTRO (Disk Tube Reverse Osmosis) was long-term monitored in a plateau area of Southwest China, and low-temperature leachate was preheated by the LFG (Landfill Gas) heating system. DTRO operating pressure was observed, then the mechanism analyzed and optimization methods recommended. The results show that the operating pressure reached the highest value of 57.87 bar when the leachate temperature is lower than 14°C. And the pressure dropped from 56.2 bar to 49.5 bar when the leachate was heated by LFG heater from 14°C to 22°C. The system performance can be improved by adjusting the temperature into a proper range. And leachate concentrate treatment by afterheat of the burner is also discussed.