用于高校优质中水原位处理的设备研究

Research on the apparatus for in-situ treatment of high quality reclaimed water in universities

为了提高高校优质中水的处理与回用率,提出了适用于高校优质中水的处理与回用系统,设计了中水原位处理设备,并进行了试验验证。结果表明,沉淀-SOBMR-过滤设备能够实现无动力、自动化运行,尤其适合于盥洗和洗浴废水的处理。沉淀单元对盥洗废水COD和SS去除率分别为23.8%和55.7%;SOBMR单元对盥洗废水COD和SS去除率分别为35.8%和27.9%;过滤单元能有效去除废水中绝大部分SS,且能耐受SS冲击负荷,对废水COD去除率先增后降,受水力负荷的影响,负荷越小,处理效果越好。整个系统出水水质满足杂用水对COD、SS和色度等要求,可用于冲厕和杂用。每套处理装置可节约水资源151.2 m3/a,设备投资回收期为2.01年,具有巨大的经济效益。

In order to increase the treating and recycling ratio of reclaimed water in universities, this paper introduced the conception of high quality wastewater treatment and recycling system, designed a high quality wastewater treatment instrument in situ, and carried out some demonstrating experiments. The result showed： sedimentation-SOBMR-fihration system can run automatically without power, which fit to treat washing and bathing wastewater especially. The COD and SS removal rates for washing wastewater are 23.8% and 55.7% in sedimentation unit, 35.8% and 27.9% in SOBMR unit respectively. Filtration unit can remove SS in washing water efficiently, and can bear the SS load strike, but the COD removal was affected by hydraulic load,the lower the load low, the high the COD removal rate. The ultimately outflow quality met the all-purpose water quality standard require for COD,SS and chroma, etc such as lavatory washing water or other usages. Each instrument can spare water resource 151.2 m^3/a, and its investment returning period is about 2.01 year, which can bring great economic benefits.