Activated Sludge Process is applied more and more extensively, with rate of treated sewage rising.

随着我国城市污水处理率的逐年上升，活性污泥法的应用越来越广泛。

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This storage tank has the function of dosing disinfection, crushing residue, washing tank and discharging treated sewage residue to outboard.

本储存柜具有加药消毒、残渣粉碎、柜内冲洗和将处理后的污水残渣排至舷外的功能。

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MethodsBy using biological oxidation and ozone disinfection for the treated sewage of hospital, effects on quality of the sewage were investigated.

方法对医院污水进行生物氧化及臭氧消毒处理，观察水质的变化情况。

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Plans by a youth hostel to wash treated sewage into a cave on a Cornish beach are being opposed by local residents.

BBC: Aerial view of Treyarnon Bay

YHA, which has been in the area for 60 years, said the current system was defective and the proposed system would carry treated sewage from the hostel down to the cave on the beach.

BBC: Aerial view of Treyarnon Bay

Currently, only 50 percent of urban sewage is treated.

FORBES: Quenching China's Thirst For Water