Citation
Halmi, Mohd Izuan Effendi and Wasoh @ Mohamad Isa, Helmi and Sukor, Surani and Ahmad, Siti Aqlima and Yusof, Mohd Termizi and Abd. Shukor, Mohd. Yunus
(2014)
Bioremoval of molybdenum from aqueous solution.
International Journal of Agriculture and Biology, 16 (4).
pp. 848-850.
ISSN 1560-8530; ESSN: 1814-9596
Abstract
Molybdenum is very toxic to ruminants with level as low as 2 parts per million can cause severe scouring. Its contamination of waters and soils in agricultural areas needs novel removal technology. In this work we demonstrated a novel method of molybdenum removal from aqueous solution using the dialysis tubing method coupled with molybdenum-reducing activity of Serratia sp. strain Dry5. The enzymatic reduction of molybdenum is molybdenum blue, a colloid that does not pass through dialysis tubing. The calculated maximal rate of molybdenum blue production (VMoblueMax) was 0.264±0.034 mM (Mo-blue h)-1 and the concentration of molybdate resulting in the half-maximal rate of reduction (KMo) was 21.78±3.89 mM molybdate and the specific maximal rate of Mo-blue production was approximately 80 mM (Mo-blue.hr.mg cells)-1 indicating an efficient system with high tolerance towards molybdenum.
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