【摘要】 采用两种材质的超滤膜对高浊度海水进行处理,并通过中试研究了超滤装置出水污染指数(SDI)值的影响因素。结果表明,进水混凝剂浓度、次氯酸钠浓度对超滤装置出水SDI值有较大影响;另外,进水pH值、进水温度、超滤膜材质和水中有机物等对超滤装置出水SDI值也有一定的影响。更多还原

【Abstract】 Experiment of pretreating high turbidity seawater with two ultrafiltration membranes was conducted to investigate the factors influencing SDI value of effluent water from ultrafiltration device of SWRO.The experimental results show that the permeability of ultrafiltration is stable,and SDI value can meet the need of SWRO,but different factors change the SDI value.Coagulant and sodium hypochlorite concentrations of influent water significantly affect SDI value of effluent water.While pH,temperature and dissolved organic compounds of influent water as well as membrane materials have sligWT influence on the SDI value.更多还原