Influence of low temperature thermal pre-treatment on sludge solubilisation, heavy metal release and anaerobic digestion
In this work, the influence of a low temperature (70–90°C) thermal treatment on anaerobic digestion is studied. Not only the increase in biogas production is investigated, but attention is also paid to the solubilisation of the main organic (proteins, carbohydrates and volatile fatty acids) and inor...
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| Veröffentlicht in: | Bioresource technology 2010-08, Vol.101 (15), p.5743-5748 |
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| creator | Appels, Lise Degrève, Jan Van der Bruggen, Bart Van Impe, Jan Dewil, Raf |
| description | In this work, the influence of a low temperature (70–90°C) thermal treatment on anaerobic digestion is studied. Not only the increase in biogas production is investigated, but attention is also paid to the solubilisation of the main organic (proteins, carbohydrates and volatile fatty acids) and inorganic (heavy metals, S and P) sludge constituents during thermal treatment and the breakdown of the organic components during the subsequent anaerobic digestion. Taking into account the effects of the treatment on the sludge composition is of prime importance to evaluate its influence on the subsequent anaerobic digestion and biogas production using predictive models. It was seen that organic and inorganic compounds are efficiently solubilised during thermal treatment. In general, a higher temperature and a longer treatment time are beneficial for the release. The efficiency of the subsequent anaerobic digestion slightly decreased for sludge pre-treated at 70°C. At higher pre-treatment temperatures, the biogas production increased significantly, up to a factor 11 for the 60min treatment at 90°C. |
| doi_str_mv | 10.1016/j.biortech.2010.02.068 |
| format | Article |
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Not only the increase in biogas production is investigated, but attention is also paid to the solubilisation of the main organic (proteins, carbohydrates and volatile fatty acids) and inorganic (heavy metals, S and P) sludge constituents during thermal treatment and the breakdown of the organic components during the subsequent anaerobic digestion. Taking into account the effects of the treatment on the sludge composition is of prime importance to evaluate its influence on the subsequent anaerobic digestion and biogas production using predictive models. It was seen that organic and inorganic compounds are efficiently solubilised during thermal treatment. In general, a higher temperature and a longer treatment time are beneficial for the release. The efficiency of the subsequent anaerobic digestion slightly decreased for sludge pre-treated at 70°C. At higher pre-treatment temperatures, the biogas production increased significantly, up to a factor 11 for the 60min treatment at 90°C.</description><identifier>ISSN: 0960-8524</identifier><identifier>EISSN: 1873-2976</identifier><identifier>DOI: 10.1016/j.biortech.2010.02.068</identifier><identifier>PMID: 20335023</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Anaerobic digestion ; Applied sciences ; Bacteria, Anaerobic - metabolism ; Biodegradation, Environmental ; Biofuel production ; Biogas ; Biological and medical sciences ; Biological treatment of sewage sludges and wastes ; Bioreactors - microbiology ; Biotechnology ; Disintegration ; Energy ; Environment and pollution ; Exact sciences and technology ; Fundamental and applied biological sciences. Psychology ; Industrial applications and implications. Economical aspects ; Metals, Heavy - chemistry ; Metals, Heavy - metabolism ; Pollution ; Sewage - chemistry ; Sewage - microbiology ; Sludge ; Solubility ; Temperature ; Thermal pre-treatment ; Wastes ; Water Pollutants, Chemical - chemistry ; Water Pollutants, Chemical - metabolism ; Water Purification - methods</subject><ispartof>Bioresource technology, 2010-08, Vol.101 (15), p.5743-5748</ispartof><rights>2010 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><rights>(c) 2010 Elsevier Ltd. 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Not only the increase in biogas production is investigated, but attention is also paid to the solubilisation of the main organic (proteins, carbohydrates and volatile fatty acids) and inorganic (heavy metals, S and P) sludge constituents during thermal treatment and the breakdown of the organic components during the subsequent anaerobic digestion. Taking into account the effects of the treatment on the sludge composition is of prime importance to evaluate its influence on the subsequent anaerobic digestion and biogas production using predictive models. It was seen that organic and inorganic compounds are efficiently solubilised during thermal treatment. In general, a higher temperature and a longer treatment time are beneficial for the release. The efficiency of the subsequent anaerobic digestion slightly decreased for sludge pre-treated at 70°C. At higher pre-treatment temperatures, the biogas production increased significantly, up to a factor 11 for the 60min treatment at 90°C.</description><subject>Anaerobic digestion</subject><subject>Applied sciences</subject><subject>Bacteria, Anaerobic - metabolism</subject><subject>Biodegradation, Environmental</subject><subject>Biofuel production</subject><subject>Biogas</subject><subject>Biological and medical sciences</subject><subject>Biological treatment of sewage sludges and wastes</subject><subject>Bioreactors - microbiology</subject><subject>Biotechnology</subject><subject>Disintegration</subject><subject>Energy</subject><subject>Environment and pollution</subject><subject>Exact sciences and technology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Industrial applications and implications. Economical aspects</subject><subject>Metals, Heavy - chemistry</subject><subject>Metals, Heavy - metabolism</subject><subject>Pollution</subject><subject>Sewage - chemistry</subject><subject>Sewage - microbiology</subject><subject>Sludge</subject><subject>Solubility</subject><subject>Temperature</subject><subject>Thermal pre-treatment</subject><subject>Wastes</subject><subject>Water Pollutants, Chemical - chemistry</subject><subject>Water Pollutants, Chemical - metabolism</subject><subject>Water Purification - methods</subject><issn>0960-8524</issn><issn>1873-2976</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkU-P1CAYhxujccfVr7ByMV7s-AJtoTfNxj-bbOJB90wovJ1hQssIdHW_vTQzq0cPhIQ8P34vD1V1RWFLgXbvD9vBhZjR7LcMyiGwLXTySbWhUvCa9aJ7Wm2g76CWLWsuqhcpHQCAU8GeVxcMOG-B8U31-2Ye_YKzQRJG4sMvknE6YtR5iUjyHuOkPTlGrHNEnSecMwkzSX6xOyQp-GVw3iWdXZjfkT3q-wcyYS6ZiB51QqJnW5bGGAZniHU7TCv8sno2ap_w1Xm_rO4-f_px_bW-_fbl5vrjbW1a2ud6kFbLFsDSHmEQYiiv0c3YSkOHUQoYOmqlYJILDdIKzpDZUUOve0CrueCX1dvTvccYfi6lW00uGfRezxiWpETT9py1DS9kdyJNDClFHNUxuknHB0VBrdLVQT1KV6t0BUwV6SV4da5Yhgnt39ij5QK8OQM6Ge3HqGfj0j-OiZZRus76-sSNOii9i4W5-16aOFDJm4ZDIT6cCCzK7h1GlYxbf8-6iCYrG9z_pv0DmzOu0Q</recordid><startdate>20100801</startdate><enddate>20100801</enddate><creator>Appels, Lise</creator><creator>Degrève, Jan</creator><creator>Van der Bruggen, Bart</creator><creator>Van Impe, Jan</creator><creator>Dewil, Raf</creator><general>Elsevier Ltd</general><general>[New York, NY]: Elsevier Ltd</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>7ST</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>SOI</scope></search><sort><creationdate>20100801</creationdate><title>Influence of low temperature thermal pre-treatment on sludge solubilisation, heavy metal release and anaerobic digestion</title><author>Appels, Lise ; Degrève, Jan ; Van der Bruggen, Bart ; Van Impe, Jan ; Dewil, Raf</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c519t-b8da8500d19e0b77b524a4f58c1bf870b61d872837a08d732e2dfa09a90eda373</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Anaerobic digestion</topic><topic>Applied sciences</topic><topic>Bacteria, Anaerobic - metabolism</topic><topic>Biodegradation, Environmental</topic><topic>Biofuel production</topic><topic>Biogas</topic><topic>Biological and medical sciences</topic><topic>Biological treatment of sewage sludges and wastes</topic><topic>Bioreactors - microbiology</topic><topic>Biotechnology</topic><topic>Disintegration</topic><topic>Energy</topic><topic>Environment and pollution</topic><topic>Exact sciences and technology</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Industrial applications and implications. 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Not only the increase in biogas production is investigated, but attention is also paid to the solubilisation of the main organic (proteins, carbohydrates and volatile fatty acids) and inorganic (heavy metals, S and P) sludge constituents during thermal treatment and the breakdown of the organic components during the subsequent anaerobic digestion. Taking into account the effects of the treatment on the sludge composition is of prime importance to evaluate its influence on the subsequent anaerobic digestion and biogas production using predictive models. It was seen that organic and inorganic compounds are efficiently solubilised during thermal treatment. In general, a higher temperature and a longer treatment time are beneficial for the release. The efficiency of the subsequent anaerobic digestion slightly decreased for sludge pre-treated at 70°C. 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| subjects | Anaerobic digestion Applied sciences Bacteria, Anaerobic - metabolism Biodegradation, Environmental Biofuel production Biogas Biological and medical sciences Biological treatment of sewage sludges and wastes Bioreactors - microbiology Biotechnology Disintegration Energy Environment and pollution Exact sciences and technology Fundamental and applied biological sciences. Psychology Industrial applications and implications. Economical aspects Metals, Heavy - chemistry Metals, Heavy - metabolism Pollution Sewage - chemistry Sewage - microbiology Sludge Solubility Temperature Thermal pre-treatment Wastes Water Pollutants, Chemical - chemistry Water Pollutants, Chemical - metabolism Water Purification - methods |
| title | Influence of low temperature thermal pre-treatment on sludge solubilisation, heavy metal release and anaerobic digestion |
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