On-site-treating System & Experimental Research of High-quality Middling Water in Colleges and Universities

In order to increase the treating and recycling ratio of middling water in colleges and universities,the mode of settling-SOBMR-filtration on-site-treating system for high-quality middling water is proposed,and the treating apparatus is designed and made for demonstrating experiments.The results show that this apparatus can run automatically without power,which particularly fit to treat the washing and bathing wastewater.The outflow met the requirements for other-purpose water quality standard,such as COD、SS and NH3-N,and it can be reused as lavatory washing water or other uses.Each apparatus can save water resources of 151.2 m3/a,and its period of investment recovery is about 2.01 a.