污水

污水

Wastewater.

Here, '污水' refers to wastewater which is being processed and recycled.

污水经过处理后可以重新使用。

Wastewater can be reused after treatment.

In this sentence, '污水' signifies the sewage generated in urban areas.

城市的污水排放需要严格管理。

Urban sewage discharge needs strict management.

Here, '污水' indicates the wastewater generated by factories that requires specialized treatment.

工厂的设备后面设有一个污水处理站。

Behind the factory equipment, there is a wastewater treatment station.