几种天然矿物去除苯酚效果及日光光解效应评价

ASSESSMENT ON REMOVAL OF PHENOL AND SUNLIGHT PHOTOLYSIS ON SEVERAL NATURAL MINERALS

本文以四种天然矿物为受试矿物,评价了它们去除苯酚的效果,以及日光光解效应及温度、pH值、矿物浓度、苯酚初始浓度对去除效果的影响 结果表明,锰砂对苯酚有很好的去除效果,其去除机制中日光光解效应约占6%左右.反应过程中有产物生成,溶液中有溶解Mn^(2+)捡出,表明吸附后有降解趋势 高温、低pH值、高固相与苯酚的质量比有利于苯酚的去除.在所研究的时间段内,黄铁矿、尾矿砂、凹凸棒对苯酚去除均未见明显效果.

Removal of phenol and sunlight photolysis on four kinds of natural minerals and the influences of temperature, pH, suspended minerals , and intial concentration on removal effects of phenol have been assessed. The results indicated that removal of phenol on manganese ore was efficient, and sunlight photolysis percentage was about 6%. The formed products and Mn2+ showed that the degradation had happened following adsorption. High temperature, low pH and high ratio of solid-phenol are favorable to removal of phenol on manganese ore. Removal percentages of phenol on pyrite, mill tailings and Aoto bang within the time range of study were low.