改性稻壳去除低浓度氨氮的研究  

Study on Removing the Low Concentration of Ammonia and Nitrogen by Modifying Rice Husk

作　　者：张建柱[1,2] 商平[1] 刘涛利[1] 

机构地区：[1]天津科技大学海洋科学与工程学院,天津300457 [2]天津泰达自来水公司,天津300457

出　　处：《安徽农业科学》2011年第1期228-230,260,共4页Journal of Anhui Agricultural Sciences

基　　金：天津市科技支撑计划重点项目(08ZCKFSH01600);天津市农业科技成果转化与推广项目(0802020)

摘　　要：[目的]研究改性稻壳去除废水中低浓度氨氮。[方法]采用单因素试验确定制备改性稻壳吸附剂的条件,得出该吸附剂对氨氮处理的最佳条件。[结果]以10.0%H2O2作为改性剂,温度100℃、时间30min为稻壳改性的最佳条件;吸附时间120min,吸附温度23℃,pH值8.6,稻壳与水的质量体积比3.0g/30ml时的吸附效果好;同时,改性后的稻壳结构和化学键都发生了变化。[结论]改性稻壳可作为一种低浓度氨氮废水的吸附处理剂,具有一定的利用价值。[Object]The aim was to study the modified rice husk adsorbed the low concentration of ammonia and nitrogen in wastewater.[Method]The conditions of modified rice husk and treatment for adsorbing ammonia and nitrogen were determined by the single-factor test.[Result]The results showed that take the 10.0 % H2O2 as the modifier,the optimum modified conditions were temperature 100 ℃,time 30min and the optimum adsorption conditions were time 120 min,temperature 23 ℃,pH 8.6,the rice husk and water quality volume 3.0 g/30 ml.Meanwhile,the structure and chemical bond of the rice husk have changed after modifying.[Conclusion]The modified rice husk can be used as a low-concentration ammonia and nitrogen wastewater treatment agent which had the utility value.

关 键 词：改性稻壳 低浓度氨氮 吸附 

分 类 号：X712[环境科学与工程—环境工程]