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| Chinese | English |
| 从沉淀室排出的在养殖单元底部积累的固体物质和水的混合物。污水处理中：在大部分液体从污水中被除去后保留下来的泥泞、半固体沉淀物. | sludge |
| 合格污染水平 | level of acceptable contamination |
| 合流制排水系统 | combined sewer system A sewer intended to serve as a sanitary sewer and a storm sewer, or as an industrial sewer and a storm sewer (一种作为排放清洁污水和雨水，或排放工业污水和雨水的下水道。) |
| 欧洲水源保护联合会 | European Federation for the Protection of Waters |
| 美国水污染控制联合会 | Water Pollution Control Federation |
| 污水与工业废物处理协会联合会 | Federation of Sewage and Industrial Wastes Association |
| 污水综合处理方案 | integrated waste water treatment concept |
| 碳水化合物 | carbohydrate Any of the group of organic compounds composed of carbon, hydrogen and oxygen, including sugars, starches and celluloses (由碳、氢、氧组成的有机化合物，包括糖、淀粉和纤维素。) |
| 综合废水 | combined waste water A mixture of domestic or industrial wastewater and surface runoff (一种家庭或工业废水和地表径流的混合物。) |