Effect of pyrolysis temperature and hold time on the characteristic parameters of adsorbent derived from sewage sludge

作     者：ZHAI Yun-bo, WEI Xian-xun, ZENG Guang-ming (Department of Environmental Science and Engineering,Hunan University, Changsha 410082, China. 

作者机构：Department of Environmental Science and Engineering Hunan University Changsha 410082 China. ybzhai@*** 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报(英文版))

年 卷 期：2004年第16卷第4期

页      面：683-686页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：TheNationalHighTechR&DProgram(863)ofChina(No.2001AA644020) theNationalFoundationofChinaforOutstandingYoung(No.50225926) andtheScienceFoundationofEducationMinistryofChinaforOutstandingYoungTeachers(2000) 

主　　题：adsorbent sewage sludge pyrolysis temperature hold time Doehlert’s matrix 

摘      要：According to the Doehlert’s matrix method, the adsorbent derived from sewage sludge was prepared through chemical activation under controlling the pyrolysis temperature and hold time. The characteristic parameters including the total yield, adsorption of methylene blue, adsorption of iodine, BET surface area, micro-pore volume are 35%—49%, 16.5—38 mg/g, 285—362 mg/g, 185—359 m2/g, and 0.112—0.224 m3/g, respectively. According to the experimental data, the multi-linear regression method was adopted to fit the relations between the characteristic parameters and influential factors. At final, through optimization method, the optimal adsorbent is obtained when using 62 min as hold time and 1105K as pyrolysis temperature. Under the conditions, the adsorbent was produced and compared the characteristic parameters with model forecast value, the coherence is satisfied.