Bacillus Resistance and Potensial as Chromium (Cr) Bioremoval

Zulaika, Enny and Prima, Adisya and Citrasari, Nita and Sembiring, Langkah (2015) Bacillus Resistance and Potensial as Chromium (Cr) Bioremoval. In: The 5th International Seminar on New Paradigm and Innovation on Natural Sciences and Its Application (5th ISNPINSA) i , 7-8 Oktober 2015, Semarang.

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Abstract

Chromium is one of heavy metal that encountered environment from industrial waste so it can contaminate the environment. Chromium resistance bacteria can transform Cr(VI) to Cr(III). The aim of this research is to find out chromium resistance and bioremoval potential of Chromium by Bacillus. This research was started with resistance assay of 6 isolates Bacillus to determine growth ability of isolates on medium contained Chromium. Range finding test were done to determine heavy metal concentration that used in research and determine 3 isolates that more resistance than others. Growth curves were measured by OD using spectrophotometer UV-Vis. Chromium bioremoval was measured by Atomic Absorption Spectroscophy method. Viability assay was done by pour plate method. Bacillus S1, DA11 and SS19 resistance to nutrient agar-chromium 150 mg/L. Bacillus DA11 got highest bioremoval efficiency in the amount of 76.8% at concentration 38.8 mg/L, while at concentration 1.9 mg/L the amount of bioremoval efficiency were same for all isolates. Chromium concentration were significantly influence the amount of bioremoval efficiency, while type of isolates were not significantly influence

Item Type:Conference or Workshop Item (Paper)
Subjects:Q Science > Q Science (General)
Divisions:Faculty of Science and Mathematics > Department of Chemistry
ID Code:62425
Deposited By:Faculty of Engineering
Deposited On:18 May 2018 08:55
Last Modified:18 May 2018 08:55

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