Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Environmental Chemistry》 2016-08
Add to Favorite Get Latest Update

Adsorption of Cu~(2+) in water by biomass ash

XU Lei;ZHENG Xuebo;CUI Hongbiao;LIANG Jiani;TAO Zhihui;ZHU Zhenqiu;LIU Bingbing;ZHOU Jing;Institute of Soil Science,Chinese Academy of Sciences;Key Laboratory of Soil Environment and Pollution Remediation,Institute of Soil Science;University of Chinese Academy of Sciences;Jiangxi Academy of Science.Jiangxi Engineering Research Center of Eco-Remedication of Heavy Metal Pollution;National engineering and Technology Research Center for Red Soil Improvement,Red Soil Ecological Experiment Station,Chinese Academy of Sciences;School of Earth and Environment,Anhui University of Science and Technology;  
In the experiment,biomass ash was selected as an adsorbent to investigate the effects of time,dosage and initial p H on the adsorption for Cu. Results showed that the Langmuir model could well fit the isothermal adsorption of Cu by biomass ash,and its calculated adsorption capacity( 20 mg·g~(-1)) was close to the experimental value( 19. 45mg·g~(-1)). The removal rate of Cu2 +increased with the increase of initial p H value( 2—8),and the removal rate( ~ 100%) of Cu wasthe highest at p H ~ 6. The removal rate of Cu2 +increased with the increase of the dosage,and the best removal efficiency for Cu was obtained with 0. 2 g biomass ash. The removal rate of Cu2 +increased over time and adsorption reached equilibrium after 90 mins. Our results indicated biomass ash has strong adsorption capacity for Cu and could be used to remediating wastewater treatment.
【Fund】: 国家“973”课题(2013CB934302);; 江西贵溪镉铜污染土壤修复技术示范(KFJ-EW-STS-016);; 赣鄱英才555工程 国家科技支撑计划课题(2015BAD05B01);; 国家自然科学基金重点项目(U1033004)资助~~
【CateGory Index】: X52
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved