The amount of the sludge becomes more and more following the increasing tendency of the domestic wastewatercollection and treatment ratio.
随着城市污水处理率提高导致的污水污泥产量的增长趋势也使得污水污泥的处理问题更为突出。
2
Certification in wastewatercollection and wastewater treatment (level I, II, III or IV depending certification level of the plant) is required for wastewater treatment plant operators.
污水处理厂的运营商要求具备污水收集和污水处理认证(根据工厂认证等级分为i, II, III或IV级)。
3
This paper described generation, characteristics and collection methods of petrochemical enterprises emergency wastewater.