【摘要】 本文研究了由化学互贯及物理互贯法制得的大孔交联聚苯乙烯(PS)/聚氯乙烯(PVC)互贯弱碱树脂(分别称为DXP型和DXF型)对苯酚等有机质的吸着作用。结果表明,DXF吸酚受PH的影响行为与一般的弱碱树脂相似,而DXP的吸酚容量与PH的关系曲线呈S形。DXP特殊的吸酚行为归因于这种树脂两网互贯程度较大以致吸酚时有显著的协同效应,这种效应在不同的PH范围既可促进、也可减弱树脂对酚的吸着作用。DXF由于两网互贯作用小,协同效应不显著。协同效应也反映在DXP用于按蜜脱色及有机废水脱COD时有较好的效果。更多还原

【Abstract】 The sorption of organic substances has been studied here with macroporous IPN weak base anion exchangers DXF and DXP of PS/ PVC, which were synthesised by adsorption of PVC solution and by suspension polymerization of mixed solution containing PVC., res-pectively.The result of investigation shows that DXP exchangers give high capacities to phenol when PH at 6-8 and there is a sharp change in the capacity to phenol when PH between 5 and 6. Owing to the better interpenetrating effect of PVC.and PS., the exchanger, DXP, has exchange behaviour perfectly. Therefor, the desired results were obtained with DXP in decolorizakion and in dropping the COD. of organic waste water.更多还原