亚洲一区在线日韩在线深爱,极品少妇高潮啪啪av无码,久久婷婷无码欧美日韩,秋霞在线看片无码免费

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!