NDLI: BIOSORPTION OF CHROMIUM ( VI ) USING IMMOBILIZED Bacillus subtilis AND Pseudomonas aeruginosa *

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BIOSORPTION OF CHROMIUM ( VI ) USING IMMOBILIZED Bacillus subtilis AND Pseudomonas aeruginosa *

Content Provider	Semantic Scholar
Author	Adekola, Abel
Copyright Year	2016
Abstract	Heavy metals like chromium do contaminate the environment that comprises of soil, water and air. It affects the growth of flora and fauna which in turn affect human health negatively. Chromium could also bio-accumulate in plants and animals and this becomes dangerous for survival of human if adequate steps are not taken for treatment of industrial and agricultural wastes. Therefore, the batch removal of Cr (VI) from environment water bodies becomes necessary. Its removal from aqueous solution using immobilized Bacillus subtilis (IBBS), Pseudomonas aeruginosa (IPBS), mixed biomass (IMBS) and Alginate alone (IABS) was carried out. The conditions of influence of initial Cr (VI) concentrations, solution pH, contact time, biomass dosage and temperature were studied. The sorption kinetic models of Cr (VI) onto the biosorbents were examined with pseudo first-order, pseudo second-order, and Elovich kinetics respectively. It was found that the experimental conditions affected the extent of removal of Cr (VI) from aqueous solution. The higher the initial concentration, the larger the amount of Cr (VI) removed while the higher the temperature the lesser the amount removed. The optimum contact time and adsorbent dose for effective removal of Cr (VI) from aqueous solution were found to be 60 mins and 0.01 g respectively. Pseudo second-order kinetic model best correlates the experimental data. Among isotherm models studied, Freundlich adsorption isotherm model gave the best fit.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://www.ajol.info/index.php/ejesm/article/download/136193/127331
Language	English
Access Restriction	Open
Subject Keyword	Bacillus subtilis Biomass British Informatics Olympiad Chromium (web browser) Contour line Curve fitting First-order predicate Human body Initial Concentration Kinetics Internet Protocol Large MAGIChip Metals Metals, Heavy Mike Lesser Pseudo brand of pseudoephedrine Pseudomonas aeruginosa
Content Type	Text
Resource Type	Article

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