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针对中国饮用水源中的微量重金属及有机物污染存在于常量的碱金属、碱土金属与 Fe,Mn等过渡金属背景下的特点 ,提出了用弱碱性阴离子交换树脂去除饮用水中的微量重金属及有机污染物的处理工艺。文中讨论了弱碱性阴离子交换树脂去除水中重金属及有机物的原理和特点 ,并用14种国产弱碱阴树脂研究了去除重金属及有机污染物的可行性。结果表明 ,弱碱阴树脂对苯酚的去除以物理吸附作用为主 ,并可通过表面络合作用去除 Hg2 + ,Cd2 + 。弱碱阴树脂确实能有效去除饮用水源中的重金属 (Hg2 + ,Cd2 + )及有机物 (苯酚 ) ,并能使出水满足饮用水水质标准
Aiming at the characteristics of trace amounts of heavy metals and organic pollutants in Chinese potable water sources in the presence of a constant amount of alkali metals, alkaline earth metals and transition metals such as Fe and Mn, a weakly basic anion exchange resin for removal of trace heavy metals from drinking water and Organic pollutants treatment process. The principles and characteristics of removing heavy metals and organic compounds from water by weakly basic anion exchange resin are discussed in this paper. The feasibility of removing heavy metals and organic pollutants from 14 domestic weak base anion resins is also studied. The results show that the weak alkali anion resin can remove phenol and Hg2 + and Cd2 + by surface complexation. Weak base anion resin can effectively remove heavy metals (Hg2 +, Cd2 +) and organic matter (phenol) in drinking water sources, and can make effluent meet drinking water quality standards