Morphology and mineralogy of rice husk ash treated soil for green and sustainable landfill liner construction

The morphology and mineralogy of the soil treated with rice husk ash (RHA) under different molding moisture conditions. Leachate condition in landfills built with compacted clay soil is damaging the underground water flow with the hazards released from disposed and decomposing waste materials. This...

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Autores principales:	Kennedy C. Onyelowe, Ifeyinwa I. Obianyo, Azikiwe P. Onwualu, Michael E. Onyia, Chima Moses
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Green Construction Rice Husk Ash Landfill Liner Waste Containment Microstructure Morphological Arrangement Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/2bfdc54c9e3e43949375c434bfb6c2d2
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spelling	oai:doaj.org-article:2bfdc54c9e3e43949375c434bfb6c2d22021-12-01T05:07:04ZMorphology and mineralogy of rice husk ash treated soil for green and sustainable landfill liner construction2772-397610.1016/j.clema.2021.100007https://doaj.org/article/2bfdc54c9e3e43949375c434bfb6c2d22021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2772397621000071https://doaj.org/toc/2772-3976The morphology and mineralogy of the soil treated with rice husk ash (RHA) under different molding moisture conditions. Leachate condition in landfills built with compacted clay soil is damaging the underground water flow with the hazards released from disposed and decomposing waste materials. This makes landfills dangerous infrastructure. The leakage can be dealt with through the deployment of green materials developed from agricultural waste. One of such wastes is rice husk combusted to derive ash. The test soil used in this exercise has been classified as highly plastic and poorly graded. The treated soil was examined by scanning electron microscopy and x-ray diffractometer methods. From the test results, the presence of goethite alongside quartz and kaolinite were observed in the XRD (X-ray Diffraction) spectra of 6% and 10 % RHA treated soil. The Goethite possessing an inner needle-like structure with a closed packed striated structure makes the composite a promising material for constructing landfill liners. This is because the closed packed striated structure of the goethite present in the composite will slow down the vertical seepage of leachate to allow its collection and removal by the leachate collection system. The composite will form a barrier between groundwater, soil, and substrata, and waste. From the SEM (Scanning Electron Microscopy), the uniformly distributed grain boundaries and smaller grain size of the composite (lateritic soil and RHA) will serve as a barrier to the movement of contaminants and other leachates to the groundwater and thus, making the composite a viable material for landfill liner system.Kennedy C. OnyeloweIfeyinwa I. ObianyoAzikiwe P. OnwualuMichael E. OnyiaChima MosesElsevierarticleGreen ConstructionRice Husk AshLandfill LinerWaste ContainmentMicrostructureMorphological ArrangementMaterials of engineering and construction. Mechanics of materialsTA401-492ENCleaner Materials, Vol 1, Iss , Pp 100007- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Green Construction Rice Husk Ash Landfill Liner Waste Containment Microstructure Morphological Arrangement Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Green Construction Rice Husk Ash Landfill Liner Waste Containment Microstructure Morphological Arrangement Materials of engineering and construction. Mechanics of materials TA401-492 Kennedy C. Onyelowe Ifeyinwa I. Obianyo Azikiwe P. Onwualu Michael E. Onyia Chima Moses Morphology and mineralogy of rice husk ash treated soil for green and sustainable landfill liner construction
description	The morphology and mineralogy of the soil treated with rice husk ash (RHA) under different molding moisture conditions. Leachate condition in landfills built with compacted clay soil is damaging the underground water flow with the hazards released from disposed and decomposing waste materials. This makes landfills dangerous infrastructure. The leakage can be dealt with through the deployment of green materials developed from agricultural waste. One of such wastes is rice husk combusted to derive ash. The test soil used in this exercise has been classified as highly plastic and poorly graded. The treated soil was examined by scanning electron microscopy and x-ray diffractometer methods. From the test results, the presence of goethite alongside quartz and kaolinite were observed in the XRD (X-ray Diffraction) spectra of 6% and 10 % RHA treated soil. The Goethite possessing an inner needle-like structure with a closed packed striated structure makes the composite a promising material for constructing landfill liners. This is because the closed packed striated structure of the goethite present in the composite will slow down the vertical seepage of leachate to allow its collection and removal by the leachate collection system. The composite will form a barrier between groundwater, soil, and substrata, and waste. From the SEM (Scanning Electron Microscopy), the uniformly distributed grain boundaries and smaller grain size of the composite (lateritic soil and RHA) will serve as a barrier to the movement of contaminants and other leachates to the groundwater and thus, making the composite a viable material for landfill liner system.
format	article
author	Kennedy C. Onyelowe Ifeyinwa I. Obianyo Azikiwe P. Onwualu Michael E. Onyia Chima Moses
author_facet	Kennedy C. Onyelowe Ifeyinwa I. Obianyo Azikiwe P. Onwualu Michael E. Onyia Chima Moses
author_sort	Kennedy C. Onyelowe
title	Morphology and mineralogy of rice husk ash treated soil for green and sustainable landfill liner construction
title_short	Morphology and mineralogy of rice husk ash treated soil for green and sustainable landfill liner construction
title_full	Morphology and mineralogy of rice husk ash treated soil for green and sustainable landfill liner construction
title_fullStr	Morphology and mineralogy of rice husk ash treated soil for green and sustainable landfill liner construction
title_full_unstemmed	Morphology and mineralogy of rice husk ash treated soil for green and sustainable landfill liner construction
title_sort	morphology and mineralogy of rice husk ash treated soil for green and sustainable landfill liner construction
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/2bfdc54c9e3e43949375c434bfb6c2d2
work_keys_str_mv	AT kennedyconyelowe morphologyandmineralogyofricehuskashtreatedsoilforgreenandsustainablelandfilllinerconstruction AT ifeyinwaiobianyo morphologyandmineralogyofricehuskashtreatedsoilforgreenandsustainablelandfilllinerconstruction AT azikiweponwualu morphologyandmineralogyofricehuskashtreatedsoilforgreenandsustainablelandfilllinerconstruction AT michaeleonyia morphologyandmineralogyofricehuskashtreatedsoilforgreenandsustainablelandfilllinerconstruction AT chimamoses morphologyandmineralogyofricehuskashtreatedsoilforgreenandsustainablelandfilllinerconstruction
_version_	1718405531203272704

Morphology and mineralogy of rice husk ash treated soil for green and sustainable landfill liner construction

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