Numerical simulation and analysis of coupled Thermal-Hydrological-Mechanical in coalbed methane heating mining

Abstract

There are widespread eutrophication problems in lakes and rivers in China. Eutrophication means that the water body receives too much nutrients such as nitrogen and phosphorus, and the organic matter is excessive. When the algae dies, it rots, causing the water quality to deteriorate, thereby causing damage and destruction of the ecological functions of the water, bringing huge use of water resources. loss. While a considerable number of countries or regions use lakes, rivers, etc. as drinking water sources, the problems caused by eutrophication cannot be ignored, and it is urgent to find a reliable and effective method to provide safe water supply. The combination process with ultrafiltration as the core removes algae and has good effects, low energy consumption, simple process and easy control, and has broad application prospects in the future water treatment industry. However, the problem of membrane fouling is still seriously hindering the further development of membrane technology in the water treatment industry.