Characteristics and aluminum reuse of textile sludge incineration residues after acidification

作     者：Manhong Huang Liang Chen Donghui Chen Saijie Zhou 

作者机构：College of Environmental Science and Engineering Donghua University Shanghai 201620 China Key Laboratory of Science ＆Technology of Eco-Textile Ministry of Education Donghua University Shanghai 201620 China Shanghai Institute of Technology Shanghai 200235 China 

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

年 卷 期：2011年第23卷第12期

页      面：1999-2004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）] 08[工学] 

基　　金：supported by the National Natural Science Foundation of China (No. 21007010) the Research Fund for the Doctoral Program of Higher Education of China (No. 20090075120007) the Shanghai Committee of Science and Technology, China (No. 09230500200) the Fundamental Research Funds for the Central Universities of China (No.2011D11309) the Shanghai Leading Academic Discipline Project (No. B604) the Project of Key Laboratory of Science & Technology of Eco-Textile (No. Eco-KF-2007-08) the Joint Funds of Chinese Transportation Ministry and Hunan Province for Science and Technology Development (No. 2010-353-343-290) 

主　　题：textile sludge sludge incineration residue aluminum reuse acidification 

摘      要：The chemical composition and aluminum speciation of sludge incineration residue （SIR） were determined. Cementation of aluminum from sulfuric acid solution using SIR was studied. The results showed that acid-soluble inorganic aluminum was the predominant component in the sludge, and the total leached aluminum increased from 62.2% to 92.9% after incineration. Sulfuric acid dosage and reaction time were found to affect aluminum recovery positively. Conversely, the increase in temperature significantly inhibited recovery reactions. The optimized leaching condition was 1.66 g sulfuric acid per gram of SIR with a reaction time of 3 hr at 20°C, resulting in the highest aluminum leaching rate of 96.7%. Compared to commercial aluminum sulfate solution coagulants, the leaching solution demonstrated higher CODCr, turbidity and color removal efficiency for textile wastewater.