primary sewage treatment meaning in English

污水一次处理
一级污水处理

Stage 1 of hats , which was brought into full operation in late 2001 , included the construction of a chemically enhanced primary sewage treatment works on stonecutters island
净化海港计划第一期工程已经于2001年底全面投入运作，包括于昂船洲建造一个化学强化一级的污水处理厂。
After the completion of stage 1 in 2001 , which involved the construction of deep underground tunnels to transport the sewage generated from kowloon and the northeastern part of hong kong island to a chemically enhanced primary sewage treatment plant at stonecutters island , the government is considering proceeding to a two - phased hats stage 2
第一期工程包括修建地下管道，将九和港岛东北部产生的污水，运到昂船洲的化学加强初级污水处理厂，有关已于2001年1月完成。如今政府正考虑分两阶段推行净化海港计划第2期。