负载铈生物炭对有机染料废水的吸附研究  

Study on the Adsorption of Cerium-Modified Biochar to Organic Dye Wastewater

作　　者：徐楠捷 黄洛佳 申振国 苏朦怡 曹宁 陈淑迪 陈成广 Xu Nanjie;Huang Luojia;Shen Zhenguo;Su Mengyi;Cao Ning;Chen Shudi;Chen Chengguang(Department of Architectural Engineering,Yuanpei College,Shaoxing University,Shaoxing,Zhejiang 312000,China)

机构地区：[1]绍兴文理学院元培学院建筑工程分院,浙江绍兴312000

出　　处：《绿色科技》2021年第14期45-48,共4页Journal of Green Science and Technology

基　　金：浙江省大学生科技创新活动计划项目(编号:2017R428007);国家级大学生创新创业训练计划项目(编号:201910349007)。

摘　　要：以水稻秸秆为原料,缺氧热解制备了生物炭并进行了负载铈改性,研究了其对亚甲基蓝模拟有机染料废水的吸附机理,探索了废水pH值、生物炭投加量等对其吸附性能的影响。结果表明:负载铈后生物炭比表面积增大,具有更好的吸附性能,并且碱性条件有利于铈改性生物炭对亚甲基蓝的吸附,该吸附过程更符合准二级动力学方程及Langmuir吸附等温方程,属于单分子层吸附,平衡吸附量为4.567 mg/g。Using rice straw as raw material,biochar was prepared by anoxic pyrolysis and modified with cerium.The adsorption mechanism of methylene blue simulated organic dye wastewater was studied,and the effects of wastewater pH and biochar dosage on the adsorption performance of cerium-modified biochar were explored.The results showed that the specific surface area of biochar after modifying with cerium was increased,and it had better adsorption performance,and alkaline conditions were conducive to the adsorption of methylene blue by cerium-modified biochar.The adsorption process was more in line with the quasi-second-order kinetic equation and Langmuir adsorption isotherm equation which belongs to monolayer adsorption,and the equilibrium adsorption capacity was 4.567mg/g.

关 键 词：水稻秸秆 生物炭 负载铈 有机染料 吸附 

分 类 号：X788[环境科学与工程—环境工程]