饮用水PAC-UF深度处理技术分析
发布时间：2018-08-09 19:17
【摘要】：本文通过对陡河水质的详细分析,介绍了唐山地区地表水的水质特点以及影响因素,并对陡河水进行混凝-沉淀预处理。通过探究PAC工艺和PAC-UF联用技术对陡河水的深度处理实验,详细分析了深度处理技术及其影响因素。分析结果表明,陡河水体浮游生物种类较少,群落结构趋于简单,TOC和氨氮值略超出Ⅱ类地表水质指标,溶解氧略低于Ⅱ类地表水质指标,属于微污染状况;混凝-沉淀预处理可降低陡河水的浊度、UV254、TOC和COD值。在活性炭的选择上,200目的木质粉末活性炭和椰壳粉末活性炭具备较好的吸附性能;以UV_(254)、COD_(Mn)、TOC、氨氮等检测手段,来评价PAC对陡河原水中有机污染物的去除效果时,PAC的最佳投碳量的浓度约为40mg/L,吸附时间至少为50min;以硝基苯为例,探究了突发污染物硝基苯超标时,PAC的最佳投碳量和处理硝基苯所需的时间;探究了浊度、颗粒数、UV_(254)、COD_(Mn)、超滤进水p H、膜通量等因素对PAC-UF组合工艺运行效果的影响,确定了PAC过滤层的合理厚度应大于1.2m,滤速应小于5m·h~(-1),超滤进水p H值控制在7.0,采用较低的膜通量80L·m~(-2)·h~(-1)设计等工艺参数。
[Abstract]:Through the detailed analysis of the water quality of the Douhe River, the characteristics of surface water quality in Tangshan area and the influencing factors are introduced, and the coagulation-sedimentation pretreatment of Douhe water is carried out. Through exploring the advanced treatment experiment of Douhe water by PAC process and PAC-UF technology, the advanced treatment technology and its influencing factors were analyzed in detail. The results showed that there were few plankton species in the water body of Douhe River, and the community structure tended to be simple, TOC and NH3-N values were slightly higher than those of class 鈪，
本文编号：2175060
[Abstract]:Through the detailed analysis of the water quality of the Douhe River, the characteristics of surface water quality in Tangshan area and the influencing factors are introduced, and the coagulation-sedimentation pretreatment of Douhe water is carried out. Through exploring the advanced treatment experiment of Douhe water by PAC process and PAC-UF technology, the advanced treatment technology and its influencing factors were analyzed in detail. The results showed that there were few plankton species in the water body of Douhe River, and the community structure tended to be simple, TOC and NH3-N values were slightly higher than those of class 鈪，
本文编号：2175060
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