【摘要】 研究了以Al2 (SO4 ) 3为改性剂对钠基和钙基膨润土改性后的絮凝性能 ,并以它们为絮凝剂 ,研究了对化工含酚废水的去除效果 ,并确定了最佳用土量、pH值、搅拌时间等。实验表明 ,改性膨润土对含酚废水有较好的絮凝效果 ,对酚的去除率可达 78.5 %,对废水中的COD和油去除率分别为 75 .2 %和 94.2 %。更多还原

【Abstract】 The modification of Na-bentonite and Ca-bentonite by Al2(SO4)3 and the tests for treating phenol-based wastewater from chemical industry are studied.The optimum conditions such as adding quantity of modified bentonite、pH、agitation time are determined. The experimental results show that the removal rate of phenol can be up to 78.5%, and the removal rate of COD and oil in the wastewater is 75.2% and 94.2%.更多还原