国产又粗又猛又大爽又黄,国产午夜精品av一区二区麻豆,国产精品99久久久久久人,国产日韩精品中文字无码

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!