摘要
对竹炭进行载铁改性,以增加其对磷的吸附能力并进行吸附法除磷。确定最佳改性质量浓度以及最佳处理条件,并考察改性竹炭的含铁量和铁的附着能力。最佳改性FeCl3浓度为1.5mol·L-1,最佳处理条件为pH为6～7,投配比为1:50(50mL磷废水投加竹炭1g),吸附时间5min以上,在此条件下,磷的去除率最高可达84.65%。该改性竹炭中铁质量分数为10.85%,脱附率为0.20%,表明铁层附着牢固。
To increase the phosphorus removal capacity, the bamboo charcoal was modified with iron oxide. The optimum concentration of FeCl3 in modification and the optimum treatment condition were measure＆ And the iron content and binding property of iron oxide layer on bamboo charcoal surfaee were also measured. TheoptimumconcentrationofFeCl3 is 1.5mol·L^-1, at the optimum treatment condition ofpH 6-7, 1：50 between solid and liquid, over 5 min reaction time, the highest efficiency of phosphorus removal can reach to 84.65%. In addition, the content of iron in modified bamboo charcoal is 10.85%, and the binding property of iron can be recognized by the fallen iron rate of 0.20%.
出处
《水处理技术》
CAS
CSCD
北大核心
2010年第2期36-38,48,共4页
Technology of Water Treatment
基金
国家水体污染控制与治理科技重大专项(2008ZX07101-004)
关键词
改性
除磷
竹炭
modification
phosphorus removal
bamboo charcoal
