caa a22 4500 606169970 CHVBK 20210128100714.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s10098-014-0847-z doi (NATIONALLICENCE)springer-10.1007/s10098-014-0847-z Enzymatic bioleaching of metals from printed circuit board [Elektronische Daten] [U. Jadhav, H. Hocheng] Enzymes are powerful tool that help to maintain an unpolluted environment through their use in waste management. Enzymatic bioremediation is potentially a rapid method for removal of pollutants. Therefore, the present study has been carried out to investigate the possibility of bioleaching of metals from printed circuit board (PCB) powder by enzymatic bio-Fenton process. To do this glucose oxidase enzyme was used for in situ production of hydrogen peroxide (H2O2). The H2O2 was further used in Fenton's reaction for conversion of Fe(II) into Fe(III). Effects of various parameters such as incubation time, temperature, pH, and shaking speed on conversion of Fe(II) into Fe(III) were assessed. This enzymatic bio-Fenton process was further applied for bioleaching of metals. The results showed that metal recovery increased with an increase in initial Fe(II) concentration. Maximum recovery of metals was achieved at 250mM initial Fe(II) concentration. The metal recovery decreased with an increase in concentration of PCB powder. The present research put forth a novel method for bioleaching of metals. Springer-Verlag Berlin Heidelberg, 2014 Bioleaching nationallicence Metals nationallicence Glucose oxidase nationallicence Bio-Fenton process nationallicence Printed circuit board powder nationallicence Jadhav U. Department of Power Mechanical Engineering, National Tsing Hua University, No. 101, Sec.2, Kuang Fu Rd., 30013, Hsinchu, Taiwan, ROC aut Hocheng H. Department of Power Mechanical Engineering, National Tsing Hua University, No. 101, Sec.2, Kuang Fu Rd., 30013, Hsinchu, Taiwan, ROC aut Clean Technologies and Environmental Policy Springer Berlin Heidelberg 17/4(2015-04-01), 947-956 1618-954X 17:4<947 2015 17 10098 https://doi.org/10.1007/s10098-014-0847-z text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10098-014-0847-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jadhav U. Department of Power Mechanical Engineering, National Tsing Hua University, No. 101, Sec.2, Kuang Fu Rd., 30013, Hsinchu, Taiwan, ROC aut NATIONALLICENCE 700 1- Hocheng H. Department of Power Mechanical Engineering, National Tsing Hua University, No. 101, Sec.2, Kuang Fu Rd., 30013, Hsinchu, Taiwan, ROC aut NATIONALLICENCE 773 0- Clean Technologies and Environmental Policy Springer Berlin Heidelberg 17/4(2015-04-01), 947-956 1618-954X 17:4<947 2015 17 10098