noun
water reclamation; water recycling
Technical term for treating wastewater so it can be reused, often in industrial, agricultural, or environmental contexts.
この工場では水再生システムを導入している。
This factory has introduced a water recycling system.
水再生技術は、水不足の地域で重要だ。
Water reclamation technology is important in water-scarce regions.
再生水 refers to the reclaimed water itself, whereas 水再生 refers to the process or concept of water reclamation.
Compound of 水 (water) and 再生 (regeneration, recycling). The term is a modern technical coinage reflecting environmental and engineering concepts.