"Sewage sludge" means sludge arising from urban effluent treatment plant and includes pretreatment waste, scourings and unstabilised sludge.
“下水道淤泥”，是指经城市污水处理厂产生的淤渣，包括预处理的废物、污垢和性质不稳定的淤泥。
To protect the ecological environment and to improve the efficiency of sewage and solid waste treatment system.
保护生态环境，完善污水和固体垃圾处理系统建设。
Waste that has undergone this process of sewage treatment is easier and more cost effective to dispose of and the treated wastes can be used for other things such as for agricultural purposes.
废物，经历了这个过程中的污水处理厂是更容易和更符合成本效益的处置和处理的废物，可用于其他事情，如农业用途。
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