1. Abskharon RN, Gad El-Rab SM, Hassan SH, Shoreit AA. (2009) Reduction of toxic hexavalent chromium by E. coli. J Biotechnol Biochem 4(2):98–103
2. Aguilar JRP, Cabriales JJP, Vega MM (2008) Identification and characterization of sulfur-oxidizing bacteria in an artificial wetland that treats wastewater from a tannery. Int J Theor Phys 10:359–370
3. Ahamed LN, Basker S, Rengaswamy G (1977) Pollution effects on tannery waste – two case studies. Leather Sci 24:416–422
4. Apparao BV, Karthikeyan G (1990) Pollution due to tanneries ol’ Dindigul. Gandhigram Rural Institute-Gandhigram, Dindigul, pp 19–24
5. Bachate SP, Nandre VS, Ghatpande NS et al (2013) Simultaneous reduction of Cr(VI) and oxidation of as(III) by Bacillus firmus TE7 isolated from tannery effluent. Chemosphere 90:2273–2278