Remediation of degraded soils with hydrogels from domestic animal wastes
Abstract Introduction This study reports on water management in the fields found in arid areas by the improvement of the soil’s water retention capacity. This was done using hydrogels from animal wastes to mitigate the effects of climate change that lead to rapid evaporation of water hence increased...
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| Format: | Article |
| Language: | English |
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OICC Press
2019-01-01
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| Series: | International Journal of Recycling of Organic Waste in Agriculture |
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| Online Access: | http://link.springer.com/article/10.1007/s40093-019-0242-1 |
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| author | Isaac Mwangi Grace Kiriro Sauda Swaleh Ruth Wanjau Paul Mbugua Jane Catherine Ngila |
| author_facet | Isaac Mwangi Grace Kiriro Sauda Swaleh Ruth Wanjau Paul Mbugua Jane Catherine Ngila |
| author_sort | Isaac Mwangi |
| collection | DOAJ |
| description | Abstract Introduction This study reports on water management in the fields found in arid areas by the improvement of the soil’s water retention capacity. This was done using hydrogels from animal wastes to mitigate the effects of climate change that lead to rapid evaporation of water hence increased desertification rates. Method The modification of the cow dung to hydrogels involves the oxidation of urea or uric acid from chicken dung to form compounds that can undergo a condensation reaction with cellulose in the cow dung. This formed a product with high water retention capacity. Results The materials were characterized using Fourier transform infra-red spectroscopy and thermo-gravimetric analysis which confirmed the derivatization of some functional groups. The thermo-stability was improved, as the degradation temperatures for urea, glycerol, and chicken dung derivatives were 245, 220, and 228 °C, respectively, while the unmodified form was 198 °C. The UV–Vis analysis showed no evidence of starch in the modified material which was also confirmed by Lugol’s test. It was found out that modification had influence on the swelling ability giving it superabsorbent properties with swelling capacities (300 g g−1) within 5 min of moisture exposure plus a high water retention capacity of 90%. Conclusions The application of the modified materials in the growing of some selected plants showed that the moisture content could be sustained for a period of 6 weeks before the plants wilted. This confirms that the modified form of manure has potential application for hydration of plants in arid areas. |
| format | Article |
| id | doaj-art-cb88ee51f8bb4ce08bb0540afb4aa000 |
| institution | Kabale University |
| issn | 2195-3228 2251-7715 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | OICC Press |
| record_format | Article |
| series | International Journal of Recycling of Organic Waste in Agriculture |
| spelling | doaj-art-cb88ee51f8bb4ce08bb0540afb4aa0002025-02-03T00:35:18ZengOICC PressInternational Journal of Recycling of Organic Waste in Agriculture2195-32282251-77152019-01-018215917010.1007/s40093-019-0242-1Remediation of degraded soils with hydrogels from domestic animal wastesIsaac Mwangi0Grace Kiriro1Sauda Swaleh2Ruth Wanjau3Paul Mbugua4Jane Catherine Ngila5Chemistry Department, Kenyatta UniversityChemistry Department, Kenyatta UniversityChemistry Department, Kenyatta UniversityChemistry Department, Kenyatta UniversityPlant Sciences Department, Kenyatta UniversityDepartment of Chemical Technology, University of JohannesburgAbstract Introduction This study reports on water management in the fields found in arid areas by the improvement of the soil’s water retention capacity. This was done using hydrogels from animal wastes to mitigate the effects of climate change that lead to rapid evaporation of water hence increased desertification rates. Method The modification of the cow dung to hydrogels involves the oxidation of urea or uric acid from chicken dung to form compounds that can undergo a condensation reaction with cellulose in the cow dung. This formed a product with high water retention capacity. Results The materials were characterized using Fourier transform infra-red spectroscopy and thermo-gravimetric analysis which confirmed the derivatization of some functional groups. The thermo-stability was improved, as the degradation temperatures for urea, glycerol, and chicken dung derivatives were 245, 220, and 228 °C, respectively, while the unmodified form was 198 °C. The UV–Vis analysis showed no evidence of starch in the modified material which was also confirmed by Lugol’s test. It was found out that modification had influence on the swelling ability giving it superabsorbent properties with swelling capacities (300 g g−1) within 5 min of moisture exposure plus a high water retention capacity of 90%. Conclusions The application of the modified materials in the growing of some selected plants showed that the moisture content could be sustained for a period of 6 weeks before the plants wilted. This confirms that the modified form of manure has potential application for hydration of plants in arid areas.http://link.springer.com/article/10.1007/s40093-019-0242-1ManureWiltingHydrogelsPlasmolysisSwellingUric acid |
| spellingShingle | Isaac Mwangi Grace Kiriro Sauda Swaleh Ruth Wanjau Paul Mbugua Jane Catherine Ngila Remediation of degraded soils with hydrogels from domestic animal wastes International Journal of Recycling of Organic Waste in Agriculture Manure Wilting Hydrogels Plasmolysis Swelling Uric acid |
| title | Remediation of degraded soils with hydrogels from domestic animal wastes |
| title_full | Remediation of degraded soils with hydrogels from domestic animal wastes |
| title_fullStr | Remediation of degraded soils with hydrogels from domestic animal wastes |
| title_full_unstemmed | Remediation of degraded soils with hydrogels from domestic animal wastes |
| title_short | Remediation of degraded soils with hydrogels from domestic animal wastes |
| title_sort | remediation of degraded soils with hydrogels from domestic animal wastes |
| topic | Manure Wilting Hydrogels Plasmolysis Swelling Uric acid |
| url | http://link.springer.com/article/10.1007/s40093-019-0242-1 |
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