Enhancing organic waste decomposition with addition of phosphorus and calcium through different sources
Abstract Purpose This study assessed the constituent element in rock phosphate (RP) that is responsible for enhancing quick decomposition of cow dung–waste paper mixtures during vermicomposting. Method Feedstock weighing 5 kg was achieved by mixing 2.16 kg shredded waste paper together with 2.84 kg...
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| Format: | Article |
| Language: | English |
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Islamic Azad University-Isfahan (Khorasgan) Branch- Iran
2018-12-01
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| Series: | International Journal of Recycling of Organic Waste in Agriculture |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/s40093-018-0239-1 |
| _version_ | 1797369947093991424 |
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| author | Frank Oshioname Unuofin Msimelelo Siswana |
| author_facet | Frank Oshioname Unuofin Msimelelo Siswana |
| author_sort | Frank Oshioname Unuofin |
| collection | DOAJ |
| description | Abstract Purpose This study assessed the constituent element in rock phosphate (RP) that is responsible for enhancing quick decomposition of cow dung–waste paper mixtures during vermicomposting. Method Feedstock weighing 5 kg was achieved by mixing 2.16 kg shredded waste paper together with 2.84 kg cow dung sprinkled with water and then enriched with (1% P) as RP from triple superphosphate (TSP), phosphoric acid (PHA) and Ca in the form of CaCl2 at the level supplied by RP. After mixing, they were loaded into vermireactors and inoculated with matured earthworms at a stocking density of 12.5 g worms/kg feed for the entire 56 days. The decomposition of the mixtures was then monitored by measuring maturity parameters, a germination test for phyto-toxicity and morphological properties was assessed using scanning electron microscopy (SEM). Result Results revealed that rapid decomposition of waste was recorded where TSP was applied than RP whereas Ca-source had the least effect. A C:N ratio of 12 was achieved within 28 days where TSP was added, while RP, PHA and CaCl2 needed 42, 56 and more than 56 days, respectively. Conclusion It was evidently revealed from the results that P was basically the cause of the improved decomposition of the waste mixtures. To achieve quicker and well-humified enriched vermicompost with a C:N ratio of 10 within 20 days of vermicomposting, add water-soluble P sources. |
| first_indexed | 2024-03-08T17:54:19Z |
| format | Article |
| id | doaj.art-7d685978b0714838b26958316cb64002 |
| institution | Directory Open Access Journal |
| issn | 2195-3228 2251-7715 |
| language | English |
| last_indexed | 2024-03-08T17:54:19Z |
| publishDate | 2018-12-01 |
| publisher | Islamic Azad University-Isfahan (Khorasgan) Branch- Iran |
| record_format | Article |
| series | International Journal of Recycling of Organic Waste in Agriculture |
| spelling | doaj.art-7d685978b0714838b26958316cb640022024-01-02T05:43:24ZengIslamic Azad University-Isfahan (Khorasgan) Branch- IranInternational Journal of Recycling of Organic Waste in Agriculture2195-32282251-77152018-12-018213915010.1007/s40093-018-0239-1Enhancing organic waste decomposition with addition of phosphorus and calcium through different sourcesFrank Oshioname Unuofin0Msimelelo Siswana1Department of Applied Science, Walter Sisulu UniversityDepartment of Applied Science, Walter Sisulu UniversityAbstract Purpose This study assessed the constituent element in rock phosphate (RP) that is responsible for enhancing quick decomposition of cow dung–waste paper mixtures during vermicomposting. Method Feedstock weighing 5 kg was achieved by mixing 2.16 kg shredded waste paper together with 2.84 kg cow dung sprinkled with water and then enriched with (1% P) as RP from triple superphosphate (TSP), phosphoric acid (PHA) and Ca in the form of CaCl2 at the level supplied by RP. After mixing, they were loaded into vermireactors and inoculated with matured earthworms at a stocking density of 12.5 g worms/kg feed for the entire 56 days. The decomposition of the mixtures was then monitored by measuring maturity parameters, a germination test for phyto-toxicity and morphological properties was assessed using scanning electron microscopy (SEM). Result Results revealed that rapid decomposition of waste was recorded where TSP was applied than RP whereas Ca-source had the least effect. A C:N ratio of 12 was achieved within 28 days where TSP was added, while RP, PHA and CaCl2 needed 42, 56 and more than 56 days, respectively. Conclusion It was evidently revealed from the results that P was basically the cause of the improved decomposition of the waste mixtures. To achieve quicker and well-humified enriched vermicompost with a C:N ratio of 10 within 20 days of vermicomposting, add water-soluble P sources.http://link.springer.com/article/10.1007/s40093-018-0239-1VermidegradationPhosphorusEnhancementOrganic waste mixturesHumification |
| spellingShingle | Frank Oshioname Unuofin Msimelelo Siswana Enhancing organic waste decomposition with addition of phosphorus and calcium through different sources International Journal of Recycling of Organic Waste in Agriculture Vermidegradation Phosphorus Enhancement Organic waste mixtures Humification |
| title | Enhancing organic waste decomposition with addition of phosphorus and calcium through different sources |
| title_full | Enhancing organic waste decomposition with addition of phosphorus and calcium through different sources |
| title_fullStr | Enhancing organic waste decomposition with addition of phosphorus and calcium through different sources |
| title_full_unstemmed | Enhancing organic waste decomposition with addition of phosphorus and calcium through different sources |
| title_short | Enhancing organic waste decomposition with addition of phosphorus and calcium through different sources |
| title_sort | enhancing organic waste decomposition with addition of phosphorus and calcium through different sources |
| topic | Vermidegradation Phosphorus Enhancement Organic waste mixtures Humification |
| url | http://link.springer.com/article/10.1007/s40093-018-0239-1 |
| work_keys_str_mv | AT frankoshionameunuofin enhancingorganicwastedecompositionwithadditionofphosphorusandcalciumthroughdifferentsources AT msimelelosiswana enhancingorganicwastedecompositionwithadditionofphosphorusandcalciumthroughdifferentsources |