Khardenavis, Anshuman and Kumar, M Suresh and Mudliar, Sandeep N and Chakrabarti, Tapan (2007) Biotechnological conversion of agro-industrial wastewaters into biodegradable plastic, poly b-hydroxybutyrate. Bioresource Technology , 98. pp. 3579-3584. ISSN 0960-8524, ESSN: 1873-2976
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Abstract
Waste activated sludge generated from a combined dairy and food processing industry wastewater treatment plant was evaluated for its potential to produce biodegradable plastic, poly b-hydroxybutyric acid (PHB). Deproteinized jowar grain-based distillery spentwash yielded 42.3% PHB production (w/w), followed by filtered rice grain-based distillery spentwash (40% PHB) when used as substrates. Addition of di-ammonium hydrogen phosphate (DAHP) resulted in an increase in PHB production to 67% when raw rice grain-based spentwash was used. Same wastewater, after removal of suspended solids by filtration and with DAHP supplementation resulted in lower PHB production (57.9%). However, supplementing other wastes with DAHP led to a substantial decrease in PHB content in comparison to what was observed in the absence of DAHP.
Item Type: | Article |
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Uncontrolled Keywords: | Biodegradable Plastics; Poly b-hydroxybutyric Acid; Activated Sludge; Industrial Wastewaters; Biopolymers |
Subjects: | Industrial Wastewater Reuse Recycle Recovery Waste Utilization Environmental Resources, Conservation Environmental Biotechnology Microbiology |
Divisions: | UNSPECIFIED |
Depositing User: | Dr Anshuman Khardenavis |
Date Deposited: | 31 Mar 2017 10:02 |
Last Modified: | 09 May 2017 09:11 |
URI: | http://neeri.csircentral.net/id/eprint/788 |
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