【摘要】 研究化香单宁去除水中的Cr6 +、Cu2 +、Fe3+、Fe2 +等有毒金属离子作用,结果表明:影响络合反应的因素主要有3个:化香单宁的用量、静置时间与反应体系的PH值,去除率可达到65 % -90 %更多还原

【Abstract】 The authors of this articie find out that platycarya strobilacea tannin can effectively eliminate toxic metal ions such as Cr 6+ ,Cu 2+ ,Fe 3+ ,Fe 2+ in water by chelation, and main factors affecting chelation reaction are quantity of platycarya strobilacea tannin added,time of quiescent settling and PH value of reaction system,in which the quantity has remarkable effect.Percentage of removal of the ions can reach 65%-90%.更多还原