本发明具有工艺流程简单，设备成本和能耗低，且没有废水污染的优点，适合大面积推广和应用。
The method has the advantages of simple process flow, low equipment cost and energy consumption, and no wastewater pollution, and is suitable to be popularized and applied in a large area.
世界上80%的废水根本没有得到处理，它们正在流入海洋。
80% of wastewater around the world is not treated at all, and it is running into oceans.
有着很多迫切的城市挑战，各国只把废水再利用看作是额外的负担，没有直接或立即价值。
With so many pressing urban challenges, they see wastewater reuse as an added burden with no direct or immediate value.
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