Water is a valuable product, which should be used carefully. Increased global consumption of water has become a growing concern from a few decades, which has increased the demand of water recycling and reuse of waste-water by treating it with appropriate methods and technologies to meet the needs and aspirations of future generation. The reuse and recycling of laundry waste-water was carried out at lab scale. In this study, two random laundries were selected. A survey of PU and LCWU hostel laundries was made to characterize the laundry waste-water. A low cost sand and gravel filter was designed to reuse the laundry waste-water for the first rinse. Treated water was considered as low-grade water, which was found suitable for the first rinse of clothes in both laundries. By the uses of this low-grade water, 0.7m3 and 0.8m3 of fresh water from PU and LCWU laundries could be save daily. Это и многое другое вы найдете в книге Recycling and Reuse of Laundry Waste Water (Durr-e-Shahwar Noman,Sehar Bari and Fatima Wasim)