Bioremediation of anaerobically digested post-methanation distillery spent wash

Abstract

<span style="font-size:14.0pt;font-family:" times="" new="" roman";color:black;mso-bidi-font-weight:="" bold"="" lang="EN-IN">Anaerobically treated post-methanation spent wash is highly coloured with exceptionally high <span style="font-size:14.0pt;font-family: " times="" new="" roman";mso-fareast-font-family:hiddenhorzocr;color:black;mso-bidi-font-weight:="" bold"="" lang="EN-IN">chemical <span style="font-size:14.0pt;font-family: " times="" new="" roman";color:black;mso-bidi-font-weight:bold"="" lang="EN-IN">oxygen demand (COD). An efficient isolate of <i>Pseudomonas </i>sp., viz., RG-2 for decolourisation was isolated from soil

<span style="font-size:14.0pt;font-family:" times="" new="" roman";color:black;mso-bidi-font-weight:="" bold"="" lang="EN-IN">collected from distillery premises by enrichment culture method. RG-2 isolate was having considerable decolourisation (34.6 per cent) of 12.5 per cent diluted post-methanation spent wash after 8 days incubation. Addition of glucose to medium was essential to have decolourisation by this isolate. The effect of <i>p</i>H, carbon source, carbon source dose, nitrogen source, incubation period and post-methanation spent wash concentration have also been studied.

</span></span></span></span>