(4) to improve the utilization ratio of water to reduce waste water, should first produced in the source of water more fuss. If can consider water recycle, or repeated use, raise the utilization ratio of water, reduce external drainage. Abroad, some advanced enterprise of water cycle has reached above 96%, utilization and Shanghai production enterprise of water cycle utilization still stays in the 20-30% of the lower level, there is great potential to dig. Improve the production water circulation efficiency can not only reduce environmental pollution, but also can reduce the dosage of fresh water is added in a certain extent, can alleviate the water problems growing tension. In wastewater treatment, also should consider using water circulation processing.
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loading in wastewater treatment 处理负荷
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Experimental Methods in Wastewater Treatment 污水处理的实验方法
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