Improvement of the composting time for household waste during an initial low pH phase by mesophilic temperature control
Earlier studies indicated that the activity in the initial phase of composting may be reduced when the temperature rises too fast under low pH conditions. A compost reactor experiment on household waste was designed to test whether the degradation time could be reduced by actively preventing the tem...
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| Veröffentlicht in: | Bioresource technology 2002-09, Vol.84 (3), p.237-241 |
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| creator | Smårs, S. Gustafsson, L. Beck-Friis, B. Jönsson, H. |
| description | Earlier studies indicated that the activity in the initial phase of composting may be reduced when the temperature rises too fast under low pH conditions. A compost reactor experiment on household waste was designed to test whether the degradation time could be reduced by actively preventing the temperature from rising until the pH had reached a certain value. This experiment was performed by monitoring pH in the condensate from the cooled compost gas. The results from 3+3 runs with and without temperature control confirmed our hypothesis and a considerable reduction in composting time was achieved. One possible explanation for the results is that the microbes active in the low pH phase are hampered by high temperature. The abrupt rise in pH when the fatty acids are consumed seems to be a good marker of the point when temperature control can be discontinued. |
| doi_str_mv | 10.1016/S0960-8524(02)00056-1 |
| format | Article |
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A compost reactor experiment on household waste was designed to test whether the degradation time could be reduced by actively preventing the temperature from rising until the pH had reached a certain value. This experiment was performed by monitoring pH in the condensate from the cooled compost gas. The results from 3+3 runs with and without temperature control confirmed our hypothesis and a considerable reduction in composting time was achieved. One possible explanation for the results is that the microbes active in the low pH phase are hampered by high temperature. The abrupt rise in pH when the fatty acids are consumed seems to be a good marker of the point when temperature control can be discontinued.</description><identifier>ISSN: 0960-8524</identifier><identifier>EISSN: 1873-2976</identifier><identifier>DOI: 10.1016/S0960-8524(02)00056-1</identifier><identifier>PMID: 12118699</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Air Movements ; Bacteria ; Biodegradation, Environmental ; Biological and medical sciences ; Biological treatment of sewage sludges and wastes ; Bioreactors ; Biotechnology ; Carbon Dioxide - chemistry ; Compost ; composting ; composts ; Environment and pollution ; Fatty acids ; Fatty Acids - metabolism ; Fundamental and applied biological sciences. Psychology ; Garbage ; Household waste ; Hydrogen-Ion Concentration ; Industrial applications and implications. Economical aspects ; microorganisms ; monitoring ; Organic waste ; Oxygen ; Oxygen control ; Refuse Disposal - methods ; Temperature ; Temperature control ; Time Factors ; Waste Products ; wastes</subject><ispartof>Bioresource technology, 2002-09, Vol.84 (3), p.237-241</ispartof><rights>2002 Elsevier Science Ltd</rights><rights>2002 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c512t-f961b7e40f1082b1ea8d1f865822b0456e6437b1f1fdfa7a85dc3f1f9187f1793</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S0960-8524(02)00056-1$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=13704953$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/12118699$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Smårs, S.</creatorcontrib><creatorcontrib>Gustafsson, L.</creatorcontrib><creatorcontrib>Beck-Friis, B.</creatorcontrib><creatorcontrib>Jönsson, H.</creatorcontrib><title>Improvement of the composting time for household waste during an initial low pH phase by mesophilic temperature control</title><title>Bioresource technology</title><addtitle>Bioresour Technol</addtitle><description>Earlier studies indicated that the activity in the initial phase of composting may be reduced when the temperature rises too fast under low pH conditions. A compost reactor experiment on household waste was designed to test whether the degradation time could be reduced by actively preventing the temperature from rising until the pH had reached a certain value. This experiment was performed by monitoring pH in the condensate from the cooled compost gas. The results from 3+3 runs with and without temperature control confirmed our hypothesis and a considerable reduction in composting time was achieved. One possible explanation for the results is that the microbes active in the low pH phase are hampered by high temperature. The abrupt rise in pH when the fatty acids are consumed seems to be a good marker of the point when temperature control can be discontinued.</description><subject>Air Movements</subject><subject>Bacteria</subject><subject>Biodegradation, Environmental</subject><subject>Biological and medical sciences</subject><subject>Biological treatment of sewage sludges and wastes</subject><subject>Bioreactors</subject><subject>Biotechnology</subject><subject>Carbon Dioxide - chemistry</subject><subject>Compost</subject><subject>composting</subject><subject>composts</subject><subject>Environment and pollution</subject><subject>Fatty acids</subject><subject>Fatty Acids - metabolism</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Garbage</subject><subject>Household waste</subject><subject>Hydrogen-Ion Concentration</subject><subject>Industrial applications and implications. Economical aspects</subject><subject>microorganisms</subject><subject>monitoring</subject><subject>Organic waste</subject><subject>Oxygen</subject><subject>Oxygen control</subject><subject>Refuse Disposal - methods</subject><subject>Temperature</subject><subject>Temperature control</subject><subject>Time Factors</subject><subject>Waste Products</subject><subject>wastes</subject><issn>0960-8524</issn><issn>1873-2976</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkMFu1DAQhi0EosvCIwC-gOAQ8DiJk5wQqoBWqsSh9Gw5zrgxiuNgO1317XG6K3rkNLLmm388HyGvgX0CBuLzNesEK9qaVx8Y_8gYq0UBT8gO2qYseNeIp2T3DzkjL2L8naESGv6cnAEHaEXX7cjh0i3B36HDOVFvaBqRau8WH5Odb2myDqnxgY5-jTj6aaAHFRPSYQ1bX83UzjZZNdHJH-hyQZdRRaT9PXUY_TLayWqa0C0YVFrDFj6n4KeX5JlRU8RXp7onN9-__Tq_KK5-_rg8_3pV6Bp4KkwnoG-wYgZYy3tA1Q5gWlG3nPesqgWKqmx6MGAGoxrV1oMu86PLGgw0Xbkn74-5-co_K8YknY0ap0nNmE-SUAletVnMntRHUAcfY0Ajl2CdCvcSmNyMywfjctMpGZcPxiXkuTenBWvvcHicOinOwLsToKJWkwlq1jY-cmXDqq4uM_f2yBnlpboNmbm55nkxYzmp4lvSlyOBWdidxSCjtjhrHGxAneTg7X8--xe3OqgW</recordid><startdate>20020901</startdate><enddate>20020901</enddate><creator>Smårs, S.</creator><creator>Gustafsson, L.</creator><creator>Beck-Friis, B.</creator><creator>Jönsson, H.</creator><general>Elsevier Ltd</general><general>Elsevier Science</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>7ST</scope><scope>C1K</scope><scope>SOI</scope></search><sort><creationdate>20020901</creationdate><title>Improvement of the composting time for household waste during an initial low pH phase by mesophilic temperature control</title><author>Smårs, S. ; Gustafsson, L. ; Beck-Friis, B. ; Jönsson, H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c512t-f961b7e40f1082b1ea8d1f865822b0456e6437b1f1fdfa7a85dc3f1f9187f1793</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Air Movements</topic><topic>Bacteria</topic><topic>Biodegradation, Environmental</topic><topic>Biological and medical sciences</topic><topic>Biological treatment of sewage sludges and wastes</topic><topic>Bioreactors</topic><topic>Biotechnology</topic><topic>Carbon Dioxide - chemistry</topic><topic>Compost</topic><topic>composting</topic><topic>composts</topic><topic>Environment and pollution</topic><topic>Fatty acids</topic><topic>Fatty Acids - metabolism</topic><topic>Fundamental and applied biological sciences. 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A compost reactor experiment on household waste was designed to test whether the degradation time could be reduced by actively preventing the temperature from rising until the pH had reached a certain value. This experiment was performed by monitoring pH in the condensate from the cooled compost gas. The results from 3+3 runs with and without temperature control confirmed our hypothesis and a considerable reduction in composting time was achieved. One possible explanation for the results is that the microbes active in the low pH phase are hampered by high temperature. The abrupt rise in pH when the fatty acids are consumed seems to be a good marker of the point when temperature control can be discontinued.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><pmid>12118699</pmid><doi>10.1016/S0960-8524(02)00056-1</doi><tpages>5</tpages></addata></record> |
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| language | eng |
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| source | MEDLINE; Access via ScienceDirect (Elsevier) |
| subjects | Air Movements Bacteria Biodegradation, Environmental Biological and medical sciences Biological treatment of sewage sludges and wastes Bioreactors Biotechnology Carbon Dioxide - chemistry Compost composting composts Environment and pollution Fatty acids Fatty Acids - metabolism Fundamental and applied biological sciences. Psychology Garbage Household waste Hydrogen-Ion Concentration Industrial applications and implications. Economical aspects microorganisms monitoring Organic waste Oxygen Oxygen control Refuse Disposal - methods Temperature Temperature control Time Factors Waste Products wastes |
| title | Improvement of the composting time for household waste during an initial low pH phase by mesophilic temperature control |
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