Effect of aeration rate on elimination of coliforms during composting of vegetableâfruit wastes
Purpose In waters and wastes, direct pathogen detection is difficult and time consuming. Therefore, coliforms are used as indicators to measure the presence of pathogens. Composts originated from extrements, sewage sludges and plant wastes those contact with manures may have potential health hazard...
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| Language: | English |
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OICC Press
2024-01-01
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| Series: | International Journal of Recycling of Organic Waste in Agriculture |
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| Online Access: | https://oiccpress.com/ijrowa/article/view/3171 |
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| author | E. IÅıl Arslan Topal Ayhan Ãnlü Murat Topal |
| author_facet | E. IÅıl Arslan Topal Ayhan Ãnlü Murat Topal |
| author_sort | E. IÅıl Arslan Topal |
| collection | DOAJ |
| description | Purpose In waters and wastes, direct pathogen detection is difficult and time consuming. Therefore, coliforms are used as indicators to measure the presence of pathogens. Composts originated from extrements, sewage sludges and plant wastes those contact with manures may have potential health hazard to human. Therefore, the detection of coliforms both during composting and in the obtained composts is used to investigate the presence of pathogens for determination of the potential health risk. Methods In this study, the effect of six different aeration rates on elimination of total and faecal coliform bacteria was investigated during in-vessel aerobic composting of vegetableâfruit wastes. Total coliform and faecal coliform numbers in the samples were measured by the most probable number method. Results Coliforms significantly increased before the thermophilic stage except the faecal coliforms in the reactor which operated with the lowest aeration. The coliforms suddenly decreased after thermophilic stage in all reactors. Total coliforms reduced within the range of 78.2â99.9 % while faecal coliforms reduced within the range of 72.5â99.9 % after the thermophilic stage. At the end of the composting period (day 18), total coliforms and faecal coliforms reduced within the range of 99.9â100 %. Conclusions Although all the aeration rates used in the present study were effective for the elimination of coliforms, the lowest faecal coliform number was seen in the reactor that had the lowest aeration rate. At the end of the study, the faecal coliform numbers in all reactors confirmed some limits for the application activities of composts. |
| format | Article |
| id | doaj-art-5b72d8e507334e66bfaef5f46e20ab34 |
| institution | Kabale University |
| issn | 2195-3228 2251-7715 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | OICC Press |
| record_format | Article |
| series | International Journal of Recycling of Organic Waste in Agriculture |
| spelling | doaj-art-5b72d8e507334e66bfaef5f46e20ab342025-02-03T12:00:13ZengOICC PressInternational Journal of Recycling of Organic Waste in Agriculture2195-32282251-77152024-01-015310.1007/s40093-016-0134-6Effect of aeration rate on elimination of coliforms during composting of vegetableâfruit wastesE. IÅıl Arslan Topal0Ayhan Ãnlü1Murat Topal2Department of Environmental Engineering, Faculty of Engineering, University of Firat, ElazıÄ, TurkeyDepartment of Environmental Engineering, Faculty of Engineering, University of Firat, ElazıÄ, TurkeyGeneral Directorate of State Hydraulic Works, ElazıÄ, TurkeyPurpose In waters and wastes, direct pathogen detection is difficult and time consuming. Therefore, coliforms are used as indicators to measure the presence of pathogens. Composts originated from extrements, sewage sludges and plant wastes those contact with manures may have potential health hazard to human. Therefore, the detection of coliforms both during composting and in the obtained composts is used to investigate the presence of pathogens for determination of the potential health risk. Methods In this study, the effect of six different aeration rates on elimination of total and faecal coliform bacteria was investigated during in-vessel aerobic composting of vegetableâfruit wastes. Total coliform and faecal coliform numbers in the samples were measured by the most probable number method. Results Coliforms significantly increased before the thermophilic stage except the faecal coliforms in the reactor which operated with the lowest aeration. The coliforms suddenly decreased after thermophilic stage in all reactors. Total coliforms reduced within the range of 78.2â99.9 % while faecal coliforms reduced within the range of 72.5â99.9 % after the thermophilic stage. At the end of the composting period (day 18), total coliforms and faecal coliforms reduced within the range of 99.9â100 %. Conclusions Although all the aeration rates used in the present study were effective for the elimination of coliforms, the lowest faecal coliform number was seen in the reactor that had the lowest aeration rate. At the end of the study, the faecal coliform numbers in all reactors confirmed some limits for the application activities of composts.https://oiccpress.com/ijrowa/article/view/3171Total coliformFaecal coliformAerationEliminationCompostingWaste |
| spellingShingle | E. IÅıl Arslan Topal Ayhan Ãnlü Murat Topal Effect of aeration rate on elimination of coliforms during composting of vegetableâfruit wastes International Journal of Recycling of Organic Waste in Agriculture Total coliform Faecal coliform Aeration Elimination Composting Waste |
| title | Effect of aeration rate on elimination of coliforms during composting of vegetableâfruit wastes |
| title_full | Effect of aeration rate on elimination of coliforms during composting of vegetableâfruit wastes |
| title_fullStr | Effect of aeration rate on elimination of coliforms during composting of vegetableâfruit wastes |
| title_full_unstemmed | Effect of aeration rate on elimination of coliforms during composting of vegetableâfruit wastes |
| title_short | Effect of aeration rate on elimination of coliforms during composting of vegetableâfruit wastes |
| title_sort | effect of aeration rate on elimination of coliforms during composting of vegetableafruit wastes |
| topic | Total coliform Faecal coliform Aeration Elimination Composting Waste |
| url | https://oiccpress.com/ijrowa/article/view/3171 |
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