【摘要】 利用污水处理厂二级出水，通过纤维球过滤再经加氯消毒再回用方法对城市污水回收利用，既简便、投资少，费用低，而且完全达到了降低浊度、色度、去除悬浮物、降低化学耗氧量的要求，且不堵塞喷水设备、杀死污水中的细菌、病毒可达９９％以上，完全满足了卫生学要求，保证了职工身体健康，完全达到了港口煤炭作业除尘（防尘）的水质标准。更多还原

【Abstract】 This report used two methods on sewage disposal in city,The first, second water from sewage treatment plant→Oxidized by biological granule→filre spheroid filter→disinfect with chlorins→recover and utilize:The second, sccond water from sewage treatment plant→fibre spheoid filter→disinfect with chlorine→recover and utilize. The result have revealedthat the second method was simple and convenient,low cost; could reduce turbid,colorimeter,chemical oxygen demand(COD) and eliminaled suspension(SS); couldn’t stop up equipment and could kile bacterial and virus of 99%in watet. This came up to hygiene standards.ensured the worker’s health, achieved water quality standards of cool dustproof at port,gained advanced benefit on economic and social.The study showed that we find a new method on saving water and waste water re-useing.更多还原