摘要
利用湿地生态修复中常用水生植物香蒲制备生物质炭,吸附处理水体中氮、磷,实现废弃物资源化。采用不同的改性剂MgCl_2·6H_2O、FeCl_3、CaCl_2对香蒲炭进行改性,研究改性香蒲炭对水体中硝态氮和正磷酸盐的吸附效果。结果表明,用FeCl_3溶液改性的香蒲炭对硝态氮和正磷酸盐的吸附效果明显提高,改性香蒲炭对硝态氮和正磷酸盐的吸附为化学吸附,当吸附到一定程度后达到平衡。
Aquatic plants cattail in wetland ecological restoration was used to the adsorption of nitrogen and phosphorus in the water, which can achieve waste recycling. The use of cattails can adsorb the characteristics of nitrogen and phosphorus in the water to prepare cedar charcoal, adsorption treatment of water nitrogen and phosphorus solution and realize the rational use of resources. The adsorption effect of modified tangerine charcoal on nitrogen and phosphorus was studied by using different modifiers MgCl2· 6H2 O, FeCl3 and CaCl2. The results showed that the adsorption effect of vanillin on the nitrogen and phosphorus was improved obviously with FeCl3 solution. The adsorption of nitrogen and phosphorus on the modified vanilla charcoal was chemical adsorption. When adsorbed to a certain extent, the adsorption was no longer carried out.
作者
吕欣田
张文
刘茜
王佳佳
胡志新
LV Xin-tian ZHANG Wen LIU Qian WANG Jia-fia HU Zhi-xin(School of Environmental Engineering, Nanjing Institute of Technology, Jiangsu Nanjing 211167, China)
出处
《广州化工》
CAS
2017年第15期75-78,共4页
GuangZhou Chemical Industry
基金
江苏省高等学校大学生创新创业训练计划项目(No:201611276044X)
关键词
香蒲炭
吸附
氮
磷
vanilla charcoal
adsorption
nitrogen
phosphorus
