少妇人妻精品一区二区三区,亚洲欧洲中文日韩久久av乱码,激情内射亚州一区二区三区爱妻,无套内内射视频网站

A photovoltaic enterprise wastewater denitrification project

時間:2018-03-26

The total amount of wastewater in a photovoltaic enterprise is 1200t/d, of which the total nitrogen content is 1300mg/L. It has been proved by practice that after the wastewater has passed our independent research and development of the Anbang denitrification equipment process, the total nitrogen index is less than 5 mg/L.Below, the system is stable in operation and the water discharge condition is excellent; the local environmental protection department has passed the acceptance and is highly appraised!