| 上海市政下水道排放标准中镉最大允许浓度的研究 |
| 摘要点击 729 全文点击 838 投稿时间：1988-01-19 |
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| 中文关键词 |
| 英文关键词 |
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| 中文摘要 |
| 开展城市下水排放标准的研究对加速城市建设,促进城市下水系统的科学管理,更好地发挥城市下水系统的环境效益、经济效益和社会效益有着重要意义。 |
| 英文摘要 |
| By simulated tests of activated sludge process with toxicant cadmium (Cd) in the laboratory, the results showed that to a certain concentration of Cd, biological treatment of waste water was gradually depressed as its concentrations increased. Cd residue in effluent incereased as its concentretion in influent gor high, and decreased as sustained time of sludge increased. Cd concentration in mixed liquid hadnot a tangible impact on sludge in second sedimentation tank. Based on the results, the author offered a proposal for reviewing the discharge standard of maximum permissible concentration of Cd in Shanghai sewerage system. |
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