Removal of dissolved sulfides in aqueous solution by activated sludge: mechanism and characteristics

详细信息    查看全文

• 作者：Bo-Wen Pang^a ; Cheng-Hong Jiang^a ; Marvin Yeung^a ; Yun Ouyang^a ; Jinying Xi^a ; ^b ; ^{xijinying@tsinghua.edu.cn} ; ^{xijinying@tsinghua.org.cn}
• 关键词：Sulfides ; Activated sludge ; Adsorption ; Kinetic ; Isotherms
• 刊名：Journal of Hazardous Materials
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：324
• 期：part_PB
• 页码：732-738
• 全文大小：943 K
• 卷排序：324

文摘

Dissolved sulfides removal is primarily attributed to adsorption under low DO condition in activated sludge recycling process. SEM/EDS, XPS, and FTIR results show that sulfides could be bonded with the primary amine group in the activated sludge. Sulfides adsorption isotherm fit the Langmuir model well, and kinetic fit the pseudo-second-order model well.