改性硫酸铁铵丝瓜络生物炭对砷的吸附行为研究  

Arsenic Adsorption Behavior of Loofah Biochar Modified with Ammonium Ferric Sulfate

作　　者：黄青友 全桂香[1] 沙永浩 HUANG Qingyou;QUAN Guixiang;SHA Yonghao(College of Environmental Scienceand Engineering,Yancheng Institute of Technology,Yancheng 224051,China)

机构地区：[1]盐城工学院环境科学与工程学院,江苏盐城224051

出　　处：《生物化工》2022年第1期131-134,共4页Biological Chemical Engineering

摘　　要：在生态环境保护日益获得重视的背景下,加强砷污染治理成为迫切的工作。采用硫酸铁铵改性丝瓜络生物质炭,研究材料的砷吸附行为,对吸附时间、生物质炭投放量、砷溶液初始pH值和生物质炭制备温度几个方面进行了优化。结果表明,随着吸附时间延长和生物质炭投放量增加,吸附效果变好;砷溶液初始pH值增大,吸附效果先上升后下降,pH2.0时吸附率最高;在吸附时间、砷溶液初始pH值、生物质炭投放量和生物质炭制备温度相同的情况下,硫酸铁铵改性后的丝瓜络生物质炭具有更优的砷吸附效果。In the context of increasing attention to ecological and environmental protection,it is urgent to strengthen arsenic pollution control.In this study,ammonium ferric sulfate modified loofah biochar was used to study arsenic adsorption from the adsorption time,the amount of biochar,the initial pH value of arsenic solution and the preparation temperature of biochar.The results showed that with the increase of adsorption time and the increase of the amount of biochar,the arsenic adsorption effect was better.As the initial pH value of arsenic solution increased,the arsenic adsorption effect increased first and then decreased,the optimal pH value was 2.0.Ammonium ferric sulfate modified loofah biochar had better arsenic adsorption effect under the same adsorption time,initial pH value of arsenic solution,amount of biochar and preparation temperature of biochar.

关 键 词：硫酸铁铵 丝瓜络生物炭 改性 砷吸附 

分 类 号：X52[环境科学与工程—环境工程] TQ127.1[化学工程—无机化工]