嫩草日韩无码_蜜芽av日韩国产青青草_亚洲国产视频一二三_亚洲中文AV网站

CN

  UASB and Application-In the UASB, sewage flow from bottom to top. The bottom of the UASB has a high concentration and active sludge bed. Most of the organic pollutants in wastewater go through anaerobic fermentation here to be degraded into methane and carbon dioxide. UASB has high load capacity and is suitable for high concentration organic wastewater treatment.

data sorting.....