Co-composting of organic solid waste and sewage sludge – a waste management option for University Campus
<p class="Default">Co-composting organic solid waste with dewatered sewage sludge was carried out to determine its suitability for managing waste on a University campus. Windrow composting method was employed in which dewatered sewage sludge and organic solid waste were mixed at volu...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Progressive Sustainable Developers Nepal
2016-02-01
|
| Series: | International Journal of Environment |
| Subjects: | |
| Online Access: | http://nepjol.info/index.php/IJE/article/view/14562 |
| _version_ | 1818346651538948096 |
|---|---|
| author | Bernard Fei-Baffoe Kenneth Osei Eric Appiah Agyapong Eugene Atta Nyankson |
| author_facet | Bernard Fei-Baffoe Kenneth Osei Eric Appiah Agyapong Eugene Atta Nyankson |
| author_sort | Bernard Fei-Baffoe |
| collection | DOAJ |
| description | <p class="Default">Co-composting organic solid waste with dewatered sewage sludge was carried out to determine its suitability for managing waste on a University campus. Windrow composting method was employed in which dewatered sewage sludge and organic solid waste were mixed at volume ratios: 1:1, 1:2, 1:3, 0:1 and 1:0 sludge/organic solid waste. Parameters such as pH, percentage N, C, P, K, Ca, Mg, organic matter, ash content and C/N ratio were determined weekly. Total and faecal coliform population were measured biweekly with Pb and Cd levels determined at the beginning and end of the composting. With the exception of ratio 1:0 sludge/organic solid waste, all other ratios attained a favourable Carbon to Nitrogen (C/N) ratio both at the start and end of the composting process. Levels of major nutrients measured were found to be favourable for use as organic fertilizer. There was a general decline in carbon and organic matter in all the compost piles except the sewage sludge pile (1:0). Apart from the compost ratio 1:0 sludge/organic solid waste, all other ratios attained a temperature of 55<span style="line-height: 115%; font-family: 'Calibri','sans-serif'; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: Calibri; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 'Times New Roman'; mso-bidi-theme-font: minor-bidi; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">°</span>C within 8 days of composting. Generally the compost ratios 1:2, 1:3 and 0:1 (sludge/organic solid waste) were found to be the most suitable for use as organic fertilizer. </p><p class="Default"><em>International Journal of Environment Vol. 5 (1) 2016, pp: 14-31 </em></p> |
| first_indexed | 2024-12-13T17:21:39Z |
| format | Article |
| id | doaj.art-c4b46903533a4c42aecffcac5791af3f |
| institution | Directory Open Access Journal |
| issn | 2091-2854 |
| language | English |
| last_indexed | 2024-12-13T17:21:39Z |
| publishDate | 2016-02-01 |
| publisher | Progressive Sustainable Developers Nepal |
| record_format | Article |
| series | International Journal of Environment |
| spelling | doaj.art-c4b46903533a4c42aecffcac5791af3f2022-12-21T23:37:17ZengProgressive Sustainable Developers NepalInternational Journal of Environment2091-28542016-02-0151143110.3126/ije.v5i1.1456211424Co-composting of organic solid waste and sewage sludge – a waste management option for University CampusBernard Fei-Baffoe0Kenneth Osei1Eric Appiah Agyapong2Eugene Atta Nyankson3Department of Environmental Science, Kwame Nkrumah University of Science and Technology, KumasiDepartment of Environmental Science, Kwame Nkrumah University of Science and Technology, KumasiDepartment of Environmental Science, Kwame Nkrumah University of Science and Technology, KumasiDepartment of Environmental Science, Kwame Nkrumah University of Science and Technology, Kumasi<p class="Default">Co-composting organic solid waste with dewatered sewage sludge was carried out to determine its suitability for managing waste on a University campus. Windrow composting method was employed in which dewatered sewage sludge and organic solid waste were mixed at volume ratios: 1:1, 1:2, 1:3, 0:1 and 1:0 sludge/organic solid waste. Parameters such as pH, percentage N, C, P, K, Ca, Mg, organic matter, ash content and C/N ratio were determined weekly. Total and faecal coliform population were measured biweekly with Pb and Cd levels determined at the beginning and end of the composting. With the exception of ratio 1:0 sludge/organic solid waste, all other ratios attained a favourable Carbon to Nitrogen (C/N) ratio both at the start and end of the composting process. Levels of major nutrients measured were found to be favourable for use as organic fertilizer. There was a general decline in carbon and organic matter in all the compost piles except the sewage sludge pile (1:0). Apart from the compost ratio 1:0 sludge/organic solid waste, all other ratios attained a temperature of 55<span style="line-height: 115%; font-family: 'Calibri','sans-serif'; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: Calibri; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 'Times New Roman'; mso-bidi-theme-font: minor-bidi; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">°</span>C within 8 days of composting. Generally the compost ratios 1:2, 1:3 and 0:1 (sludge/organic solid waste) were found to be the most suitable for use as organic fertilizer. </p><p class="Default"><em>International Journal of Environment Vol. 5 (1) 2016, pp: 14-31 </em></p>http://nepjol.info/index.php/IJE/article/view/14562Co-composting, Organic solid waste, Sewage sludge, Compost quality, Waste Management option |
| spellingShingle | Bernard Fei-Baffoe Kenneth Osei Eric Appiah Agyapong Eugene Atta Nyankson Co-composting of organic solid waste and sewage sludge – a waste management option for University Campus International Journal of Environment Co-composting, Organic solid waste, Sewage sludge, Compost quality, Waste Management option |
| title | Co-composting of organic solid waste and sewage sludge – a waste management option for University Campus |
| title_full | Co-composting of organic solid waste and sewage sludge – a waste management option for University Campus |
| title_fullStr | Co-composting of organic solid waste and sewage sludge – a waste management option for University Campus |
| title_full_unstemmed | Co-composting of organic solid waste and sewage sludge – a waste management option for University Campus |
| title_short | Co-composting of organic solid waste and sewage sludge – a waste management option for University Campus |
| title_sort | co composting of organic solid waste and sewage sludge a waste management option for university campus |
| topic | Co-composting, Organic solid waste, Sewage sludge, Compost quality, Waste Management option |
| url | http://nepjol.info/index.php/IJE/article/view/14562 |
| work_keys_str_mv | AT bernardfeibaffoe cocompostingoforganicsolidwasteandsewagesludgeawastemanagementoptionforuniversitycampus AT kennethosei cocompostingoforganicsolidwasteandsewagesludgeawastemanagementoptionforuniversitycampus AT ericappiahagyapong cocompostingoforganicsolidwasteandsewagesludgeawastemanagementoptionforuniversitycampus AT eugeneattanyankson cocompostingoforganicsolidwasteandsewagesludgeawastemanagementoptionforuniversitycampus |