ACIDOGENIC FERMENTATION OF LIGNOCELLULOSIC SUBSTRATE WITH ACTIVATED SLUDGE
The lignocellulosic residues accumulated in municipal sold waste and agro-residues represent potential organic fractions preferably to be treated by anaerobic digestion in an energy recycle and/or value-added-product-type solid waste disposal system. Hydrolysis and acidification are predominant rea...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Published: |
Taylor and Francis Inc
2005
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| Online Access: | http://hdl.handle.net/20.500.11937/17974 |
| _version_ | 1848749611994316800 |
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| author | Qi, B. Aldrich, Chris Lorenzen, L. Wolfaardt, G. |
| author_facet | Qi, B. Aldrich, Chris Lorenzen, L. Wolfaardt, G. |
| author_sort | Qi, B. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The lignocellulosic residues accumulated in municipal sold waste and agro-residues represent potential organic fractions preferably to be treated by anaerobic digestion in an energy recycle and/or value-added-product-type solid waste disposal system. Hydrolysis and acidification are predominant reactions in organic fermentation. Owing to the complicated physiochemical structures, the initial hydrolysis and acidification of the lignocullulosic residues into soluble forms are critical to the anaerobic digestion of the residues. This research focused on the promotion of solid-state acidogenic fermentation of two natural lignocellulosic residues in a pure form from the tobacco industry and urgan turf grass by a combined pretreatment and thermophilic co-digestion with concentrated activated sludge from a biological municipal wastewater treatment plant. Laboratory-scale experiments were conducted in a batch and semi-continuous mode, with and without leachate recirculation. The results showed that the mechanophysicochemical pretreatment (roll milling-freezing-thawing-alkali wetting agent), followed by thermophilic co-digesition with activated sludge, substantially increased the solubility and fermentation efficiency of the natural lignocellulosic residues, leading to value-added utilization of these residues. In addition, leachate recycling appeared to be beneficial to acidogenesis. |
| first_indexed | 2025-11-14T07:23:42Z |
| format | Journal Article |
| id | curtin-20.500.11937-17974 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:23:42Z |
| publishDate | 2005 |
| publisher | Taylor and Francis Inc |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-179742017-05-30T07:58:26Z ACIDOGENIC FERMENTATION OF LIGNOCELLULOSIC SUBSTRATE WITH ACTIVATED SLUDGE Qi, B. Aldrich, Chris Lorenzen, L. Wolfaardt, G. Acidification Anaerobic digestion Lignocellulose The lignocellulosic residues accumulated in municipal sold waste and agro-residues represent potential organic fractions preferably to be treated by anaerobic digestion in an energy recycle and/or value-added-product-type solid waste disposal system. Hydrolysis and acidification are predominant reactions in organic fermentation. Owing to the complicated physiochemical structures, the initial hydrolysis and acidification of the lignocullulosic residues into soluble forms are critical to the anaerobic digestion of the residues. This research focused on the promotion of solid-state acidogenic fermentation of two natural lignocellulosic residues in a pure form from the tobacco industry and urgan turf grass by a combined pretreatment and thermophilic co-digestion with concentrated activated sludge from a biological municipal wastewater treatment plant. Laboratory-scale experiments were conducted in a batch and semi-continuous mode, with and without leachate recirculation. The results showed that the mechanophysicochemical pretreatment (roll milling-freezing-thawing-alkali wetting agent), followed by thermophilic co-digesition with activated sludge, substantially increased the solubility and fermentation efficiency of the natural lignocellulosic residues, leading to value-added utilization of these residues. In addition, leachate recycling appeared to be beneficial to acidogenesis. 2005 Journal Article http://hdl.handle.net/20.500.11937/17974 Taylor and Francis Inc restricted |
| spellingShingle | Acidification Anaerobic digestion Lignocellulose Qi, B. Aldrich, Chris Lorenzen, L. Wolfaardt, G. ACIDOGENIC FERMENTATION OF LIGNOCELLULOSIC SUBSTRATE WITH ACTIVATED SLUDGE |
| title | ACIDOGENIC FERMENTATION OF LIGNOCELLULOSIC SUBSTRATE WITH ACTIVATED SLUDGE |
| title_full | ACIDOGENIC FERMENTATION OF LIGNOCELLULOSIC SUBSTRATE WITH ACTIVATED SLUDGE |
| title_fullStr | ACIDOGENIC FERMENTATION OF LIGNOCELLULOSIC SUBSTRATE WITH ACTIVATED SLUDGE |
| title_full_unstemmed | ACIDOGENIC FERMENTATION OF LIGNOCELLULOSIC SUBSTRATE WITH ACTIVATED SLUDGE |
| title_short | ACIDOGENIC FERMENTATION OF LIGNOCELLULOSIC SUBSTRATE WITH ACTIVATED SLUDGE |
| title_sort | acidogenic fermentation of lignocellulosic substrate with activated sludge |
| topic | Acidification Anaerobic digestion Lignocellulose |
| url | http://hdl.handle.net/20.500.11937/17974 |