Water heat recycling

Development theme of the Rural Water Supply Network (RWSN) Water Portal – Akvopedia Sustainable Sanitation and Water Management Toolbox U.S. Centers

蒸餾 逆滲透 硬水軟化 Choosing Home Water Filters & Other Water Treatment Systems | Drinking Water | Healthy Water. Centers for Disease Control and Prevention

軟水劑 硬度 (水) Hard water. Encyclopædia Britannica. 20 July 1998 [4 March 2015]. ISBN 9781593392925.  Stephen Lower. Hard water and water softening. July

Matsuki, Hideaki. A Survey on Bacterial Contamination of Lavage Water in Electric Warm-Water Lavage Toilet Seats and of the Gluteal Cleft after Lavage. Journal

recovery ventilation） 高性能建築（英语：High-performance buildings） 土地復育（英语：Land rehabilitation） 大自然保育（英语：Nature conservation） 樸門 資源回收 排水熱回收（英语：Water heat recycling）