The dilution of the textile wastes by domestic sewage weakens the concentration of the former . 由于生活污水的稀释作用,降低了纺织废水的浓度。
Federal and state regulations require higher treatment levels than in the past for municipal wastewaters . 联邦和州的法规要求比过去对城市污水的处理有更高的水平。
This sewage-consuming biological process depends on a closely interrelated succession of species of animal plankton . 这种污水的生物净化过程就依赖着浮游动物种类的一种密切相关的演替。
Sewerage means mainly the pipes or drains which carry sewage but can include all sewage collection, treatment and removal . 污水工程主要是指输送污水的管道或排水管,但它可以包括所有污水的收集、处理和清除。
Study on exploitation and utilization of mine wastewater 神东矿井污水的开发与利用
Design of wastewater treatment utilizing mine collapse basin 塌陷盆地处理污水的设计
Treatment of sewage in coal mine and its research progress 煤矿污水的处理及其研究进展
Polluted discharges intercepted and diverted -堵截污水的流放及改道排污渠
Microfiltration of sewage with gradient alumina membrane 梯度氧化铝膜对生活污水的净化处理
The method of organic sewage treatment by photosynthetic bacteria 光合细菌处理有机污水的方法