廃はい水すい

noun

wastewater; liquid waste; black water

Refers to water discharged from homes, factories, or other facilities after use, often containing contaminants. Used in environmental and engineering contexts.

• 工こう場じょうからの廃はい水すいは適てき切せつに処しょ理りされなければならない。

  Wastewater from factories must be properly treated.

• この地ち域いきでは廃はい水すいの再さい利り用ようが進すすめられている。

  In this region, the reuse of wastewater is being promoted.