Investigations on ultraviolet light and nitrous acid induced mutations of halotolerant bacterial strains for the treatment of tannery soak liquor.
作者： Sudharshan Sekar , Senthilkumar Sivaprakasam , Surianarayanan Mahadevan
DOI: 10.1016/J.IBIOD.2008.08.005
关键词: Halotolerance 、 Food science 、 Saline water 、 Volatile suspended solids 、 Wastewater 、 Ultraviolet light 、 Chemical oxygen demand 、 Staphylococcus aureus 、 Microbiology 、 Chemistry 、 Nitrous acid
摘要: Abstract The objective of this research work is to study the effect physical and chemical mutagenesis on biological treatment tannery saline wastewater (soak liquor) employing halotolerant bacterial strains. Four strains isolated from sources were used. identified as Pseudomonas aeruginosa , Bacillus flexus Exiguobacterium homiense Staphylococcus aureus respectively. isolates found grow well in medium containing 0–10% NaCl. At high concentration (>5%), their mixed consortia showed a low degrading efficiency soak liquor (35–45%). UV light nitrous acid performed over mutated employed for degradation at salinity level (6% by wt). Comparison Chemical Oxygen Demand (COD) removal rates both pure mutant that resulted 71% COD removal. Ultraviolet (UV) has no effectiveness. Biomass sludge (Mixed Liquor Volatile Suspended Solids) growth was also be treated
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