微污染原水处理的吸附和沉淀以及预涂过滤一体化技术

An integrated adsorption, sedimentation and precoating filtration technology for treatment of slightly-polluted water

集成膨润土吸附与硅藻土预涂膜过滤技术为一体处理微污染源水,同时在内部引入沉淀单元,在单一设备中实现了膨润土吸附、沉淀、过滤三位一体的目的.研究结果表明,吸附-沉淀-分离一体化技术有效地延缓了硅藻土预涂膜过滤时水头损失的上升速度,和原有的吸附预涂膜分离一体化技术相比,有效延长了运行周期,同时,微污染源水有机污染物的去除效果得到显著提高,表明该技术对于微污染源水的处理具有良好的应用前景.

An integrated process including bentonite adsorption combined with diatomite precoated filtration was used to treat slightly-polluted water. A sedimentation portion was introduced, unifying bentonite adsorption, sedimentation and filtration into a single process. The novel process efficiently retarded the rapid rise of filtration pressure during the process, in which the filtration cycle was therefore prolonged compared to the original integrated adsorption and precoating filtration process without sedimentation portion. The integrated technology efficiently removed high molecular weight organic pollutants; therefore, it has a good application prospect in slightly-polluted water treatment.