Bio-removal of Nickel ions by Sporosarcina pasteurii and Bacillus megaterium, A Comparative Study

International Research and Innovation Summit 2017

Gheethi, A.A.^1 ; Efaq, A.N.^2 ; Mohamed, R.M.^1 ; Abdel-Monem, M.O.^3 ; Abdullah, Abd Halid^4 ; Amir Hashim, M.^1

Micro-pollution Research Centre (MPRC), Department of Water and Environmental Engineering, Faculty of Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia (UTHM), Parit Raja, Johor, Batu Pahat

86400, Malaysia^1

Faculty of Science, Technology and Human Developments, Universiti Tun Hussein Onn Malaysia (UTHM), Parit Raja, Johor, Batu Pahat

86400, Malaysia^2

Botany Department, Faculty of Science, Benha University, Egypt^3

Department of Architecture and Engineering Design, Faculty of Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia, Parit Raja, Johor, Batu Pahat

86400, Malaysia^4

关键词: Bacillus megaterium;    Bacterial cells;    Bacterial strains;    Biomass concentrations;    Comparative studies;    Higher efficiency;    Removal capacity;    Removal process;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/226/1/012044/pdf
DOI  :  10.1088/1757-899X/226/1/012044

来源: IOP

【 摘 要 】

The aim of this work was to study the potential of Sporosarcina pasteurii 586S and Bacillus megaterium 1295S isolated from sewage treatment plants (STPs) in removing of nickel ions from the aqueous solution. The bacterial cells were used as living and dead cell biomass. The efficiency of bio-removal process was investigated as a response for nickel and biomass concentrations, time, pH and temperature. The bio-removal capacity (Qmax) of both strains were compared. The highest bio-removal percentage was recorded by dead cells in comparison to living cells. Dead cell biomass of B. megaterium 1295S exhibited higher efficiency for bio-removing of Ni2+than S. pasteurii 586S at196.4 and 200.2 mg Ni2+g-1, respectively. It can be concluded that both bacterial strains have high potential to be applied in the biotechnology for removing of Ni2+ions, however, dead cells of B. megaterium 1295S is the most potent.