景观用水处理及中水再生回用示范工程

采用适合其分散处置特点的流化床和臭氧气浮装置对高档社区的景观水以及建筑中水进行再生处理。首先针对流化床工艺,用Fe3O4作为回流絮凝助凝剂,以增强悬浮层的稳定形成。其次,增设微孔曝气系统。一方面对流化床回流的Fe3O4进行水力再生;另一方面提高水中的溶解氧,降低臭味,提高系统的好氧微生物处理能力。最后,改变工艺流程,使景观水进水杂排水池,通过流化床处理。运行结果表明,出水水质完全符合GB/T18920-2002和GB/T18921-2002中的娱乐性景观环境用水、道路清扫、城市绿化和车辆冲洗的用水水质标准。

THE DEMONSTRATION ENGINEERING APPLICATION AND DEBUGGING ABOUT LANDSCAPE WATER DISPOSAL AND RECYCLE WATER REGENERATION

In thermal power plants,reclaimed water reused as make-up water was a main measure to solve the problems of shortage of water resources,the organic in the reclaimed water was the major pollution composition of the membrane in the deep-treating process.Through the study of modification of quartz sand filter,changes the surface of the original physical and chemical properties and improves the media adsorptivity of certain substances and enhanced the filter media interception capability.Quartz sand were modified with aluminum and iron salts,through the static and dynamic filtration test assay,the result was compared between modified and unmodified quartz sand on removal of organic matter and turbidity.The experimental results showed that the modified sand removal of COD and turbidity was better than the unmodified,the removal rate of COD was increased from 5% to 20%~30% and for turbidity the removal rate was increased from 37% to 55%~65%,the result of the dynamic test and static test were consistent,the removal rate increased in both.And different metal oxide modified by the performance of sand is different.