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<p>Biosorption of Zinc using <em>Bacillus subtilis</em> (MTCC 2423)</p>

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Title Statement <p>Biosorption of Zinc using <em>Bacillus subtilis</em> (MTCC 2423)</p>
 
Added Entry - Uncontrolled Name Rajalakshmi, R ; The American College
Surendran, Appasamy ; The American College
Thatheyus, A J; The American College
 
Uncontrolled Index Term Adsorption; Bioremediation; Heavy metal pollution; Immobilized cells; Industrial effluents; Isotherms
 
Summary, etc. <p style="text-align: justify;">Heavy metals such as zinc in untreated industrial effluents cause diseases and disorders in living organisms. They cannot be degraded like organic contaminants and hence have to be removed. Though physical and chemical methods are available for their removal, most of them are not economical and eco-friendly. Hence, a suitable technique is necessary to minimize the deleterious effects of dispersion of heavy metals in ecosystems. Though zinc serves as a micronutrient, it becomes toxic in higher concentrations. Bacteria can be used in the removal of zinc and the process is economical and ecofriendly. Hence, in the present study, we tested zinc removal efficiency of <em>Bacillus subtilis</em> (MTCC 2423) for various concentrations viz. 100, 200, 300, 400 and 500 ppm of zinc in nutrient broth for a period of 10 days. Samples were tested for the zinc level every two days in each concentration and the maximum removal was noticed after six days of treatment. With the increase in zinc concentration, both biomass and zinc removal efficiency showed an increase. Autoclaved cells showed maximum zinc removal when compared with other cell types. Among the other heavy metals tested, iron enhanced the biomass of <em>B. subtilis</em> during zinc treatment and the results are discussed.</p><p style="text-align: justify;"> </p>
 
Publication, Distribution, Etc. Indian Journal of Experimental Biology (IJEB)
2022-09-29 11:43:29
 
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http://op.niscair.res.in/index.php/IJEB/article/view/37308
 
Data Source Entry Indian Journal of Experimental Biology (IJEB); ##issue.vol## 60, ##issue.no## 10 (2022): IJEB [OCTOBER 2022]
 
Language Note en