Heavy metals recovery from printed circuit board industry wastewater sludge by thermophilic bioleaching process
作者： Shen-Yi Chen , Qiao-Ying Huang
DOI: 10.1002/JCTB.4129
关键词:
摘要: BACKGROUND A large quantity of heavy metal contaminated wastewater sludge is produced during the treatment printed circuit board (PCB) manufacturing wastewater. The PCB containing high concentrations metals, such as Cu and Zn, increases potential for recycling. Although bioleaching indicated a promising technology to remove metals from electronic scrap waste PCBs, its application recovery still very limited. purpose this study was develop thermophilic process operated in sequencing batch reactor (SBR) recover sludge. RESULTS The results show that an increase solid content 0.5 5% (w/v) decreased rate pH reduction process. It also found efficiency solubilization with increasing content. At 0.5% (w/v), after four repeated feed/decant cycles 10 days per cycle (40 days) SBR operation, maximum efficiencies treated were 65% 100% respectively. CONCLUSION The lower operation longer 20-day cycle time. Therefore, shorter 10-day cycle time preferred sludge. In sludge, mobility environmental risks significantly © 2013 Society Chemical Industry
sci-hub.se 参考文章(39)
Nengwu Zhu, Yun Xiang, Ting Zhang, Pingxiao Wu, Zhi Dang, Ping Li, Jinhua Wu, Bioleaching of metal concentrates of waste printed circuit boards by mixed culture of acidophilic bacteria. Journal of Hazardous Materials. ,vol. 192, pp. 614- 619 ,(2011) , 10.1016/J.JHAZMAT.2011.05.062
Peng Chen, Lei Yan, Feifan Leng, Wenbing Nan, Xiaoxuan Yue, Yani Zheng, Na Feng, Hongyu Li, None, Bioleaching of realgar by Acidithiobacillus ferrooxidans using ferrous iron and elemental sulfur as the sole and mixed energy sources Bioresource Technology. ,vol. 102, pp. 3260- 3267 ,(2011) , 10.1016/J.BIORTECH.2010.11.059
Baoping Xin, Wenfeng Jiang, Xin Li, Kai Zhang, Changhao Liu, Renqing Wang, Yutao Wang, Analysis of reasons for decline of bioleaching efficiency of spent Zn-Mn batteries at high pulp densities and exploration measure for improving performance. Bioresource Technology. ,vol. 112, pp. 186- 192 ,(2012) , 10.1016/J.BIORTECH.2012.02.133
Hong-Bo Zhou, Wei-Min Zeng, Zhi-Feng Yang, Ying-Jian Xie, Guan-Zhou Qiu, Bioleaching of chalcopyrite concentrate by a moderately thermophilic culture in a stirred tank reactor. Bioresource Technology. ,vol. 100, pp. 515- 520 ,(2009) , 10.1016/J.BIORTECH.2008.06.033
Guobin Liang, Yiwei Mo, Quanfa Zhou, Novel strategies of bioleaching metals from printed circuit boards (PCBs) in mixed cultivation of two acidophiles Enzyme and Microbial Technology. ,vol. 47, pp. 322- 326 ,(2010) , 10.1016/J.ENZMICTEC.2010.08.002
J.J. Papike, J.M. Karner, C.K. Shearer, Comparative planetary mineralogy: Implications of martian and terrestrial jarosite. A crystal chemical perspective Geochimica et Cosmochimica Acta. ,vol. 70, pp. 1309- 1321 ,(2006) , 10.1016/J.GCA.2005.11.004
Fengchun Xie, Tingting Cai, Yang Ma, Haiying Li, Chuncheng Li, Zhiyuan Huang, Gaoqing Yuan, Recovery of Cu and Fe from Printed Circuit Board waste sludge by ultrasound: Evaluation of industrial application Journal of Cleaner Production. ,vol. 17, pp. 1494- 1498 ,(2009) , 10.1016/J.JCLEPRO.2009.06.012
C. H. Wu, C. Y. Kuo, S. L. Lo, Recovery of heavy metals from industrial sludge using various acid extraction approaches. Water Science and Technology. ,vol. 59, pp. 289- 293 ,(2009) , 10.2166/WST.2009.859
M. E. Elwood Madden, R. J. Bodnar, J. D. Rimstidt, Jarosite as an indicator of water-limited chemical weathering on Mars Nature. ,vol. 431, pp. 821- 823 ,(2004) , 10.1038/NATURE02971
Fang-Chih Chang, Shang-Lien Lo, Chun-Han Ko, A Copper Removal Process for Printed Circuit Board Wastewater Sludge Applying Extraction and Cementation with Chelating Agents Recovery Environmental Engineering Science. ,vol. 24, pp. 1006- 1016 ,(2007) , 10.1089/EES.2006.0060