Exploring the untapped potentials of oily sludge ash blended with fly ash for geopolymer binder via waste valorisation approach
Globally, large quantities of oily sludge are produced in petroleum refineries as wastes from petroleum refining processes. Petroleum refinery oily sludge (PROS) is a major by-product of the processes and a major contributor to pollution in the oil and gas industry. In this study, Response Surface M...
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Elsevier B.V.
2023
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oai:scholars.utp.edu.my:373072023-10-04T08:38:00Z http://scholars.utp.edu.my/id/eprint/37307/ Exploring the untapped potentials of oily sludge ash blended with fly ash for geopolymer binder via waste valorisation approach Kumar, V. Kutty, S.R.M. Abd Razak, S.N. Shafiq, N. Adebanjo, A. Baloo, L. Azougagh, A.-A. Iseni, R. Globally, large quantities of oily sludge are produced in petroleum refineries as wastes from petroleum refining processes. Petroleum refinery oily sludge (PROS) is a major by-product of the processes and a major contributor to pollution in the oil and gas industry. In this study, Response Surface Methodology (RSM) was used for optimising and modelling experimental work. Thermally treated PROS replaced fly ash (FA) at 5�20 in geopolymer mortar mixes at a fixed combination of sodium silicate (Na2SiO3) and sodium hydroxide (NaOH). The visual observations and effects of PROS on the density and compressive strength of PROS geopolymer mortar (PGM) were studied. PGM with 10 replacement of PROS had the maximum compressive strength of 38.17 MPa after 28 days. P-values obtained from the quadratic models developed for the synergistic effect of FA-PROS on density and compressive strength were less than 0.005. Optimisation of the synergistic effect of FA-PROS binder produced an optimal combination of both materials for maximum compressive strength and density of 2200 kg/m3 with desirability factor of 0.981. This investigation shows that replacing PROS with FA in geopolymer mortar can result in a new supply chain for greener binder materials in geopolymer mortar. © 2023 The Authors Elsevier B.V. 2023 Article NonPeerReviewed Kumar, V. and Kutty, S.R.M. and Abd Razak, S.N. and Shafiq, N. and Adebanjo, A. and Baloo, L. and Azougagh, A.-A. and Iseni, R. (2023) Exploring the untapped potentials of oily sludge ash blended with fly ash for geopolymer binder via waste valorisation approach. Journal of Hazardous Materials Letters, 4. ISSN 26669110 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85150796228&doi=10.1016%2fj.hazl.2023.100076&partnerID=40&md5=d58cf61cc185a53e1449cec0446f59cd 10.1016/j.hazl.2023.100076 10.1016/j.hazl.2023.100076 10.1016/j.hazl.2023.100076 |
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Globally, large quantities of oily sludge are produced in petroleum refineries as wastes from petroleum refining processes. Petroleum refinery oily sludge (PROS) is a major by-product of the processes and a major contributor to pollution in the oil and gas industry. In this study, Response Surface Methodology (RSM) was used for optimising and modelling experimental work. Thermally treated PROS replaced fly ash (FA) at 5�20 in geopolymer mortar mixes at a fixed combination of sodium silicate (Na2SiO3) and sodium hydroxide (NaOH). The visual observations and effects of PROS on the density and compressive strength of PROS geopolymer mortar (PGM) were studied. PGM with 10 replacement of PROS had the maximum compressive strength of 38.17 MPa after 28 days. P-values obtained from the quadratic models developed for the synergistic effect of FA-PROS on density and compressive strength were less than 0.005. Optimisation of the synergistic effect of FA-PROS binder produced an optimal combination of both materials for maximum compressive strength and density of 2200 kg/m3 with desirability factor of 0.981. This investigation shows that replacing PROS with FA in geopolymer mortar can result in a new supply chain for greener binder materials in geopolymer mortar. © 2023 The Authors |
| format |
Article |
| author |
Kumar, V. Kutty, S.R.M. Abd Razak, S.N. Shafiq, N. Adebanjo, A. Baloo, L. Azougagh, A.-A. Iseni, R. |
| spellingShingle |
Kumar, V. Kutty, S.R.M. Abd Razak, S.N. Shafiq, N. Adebanjo, A. Baloo, L. Azougagh, A.-A. Iseni, R. Exploring the untapped potentials of oily sludge ash blended with fly ash for geopolymer binder via waste valorisation approach |
| author_facet |
Kumar, V. Kutty, S.R.M. Abd Razak, S.N. Shafiq, N. Adebanjo, A. Baloo, L. Azougagh, A.-A. Iseni, R. |
| author_sort |
Kumar, V. |
| title |
Exploring the untapped potentials of oily sludge ash blended with fly ash for geopolymer binder via waste valorisation approach |
| title_short |
Exploring the untapped potentials of oily sludge ash blended with fly ash for geopolymer binder via waste valorisation approach |
| title_full |
Exploring the untapped potentials of oily sludge ash blended with fly ash for geopolymer binder via waste valorisation approach |
| title_fullStr |
Exploring the untapped potentials of oily sludge ash blended with fly ash for geopolymer binder via waste valorisation approach |
| title_full_unstemmed |
Exploring the untapped potentials of oily sludge ash blended with fly ash for geopolymer binder via waste valorisation approach |
| title_sort |
exploring the untapped potentials of oily sludge ash blended with fly ash for geopolymer binder via waste valorisation approach |
| publisher |
Elsevier B.V. |
| publishDate |
2023 |
| url |
http://scholars.utp.edu.my/id/eprint/37307/ https://www.scopus.com/inward/record.uri?eid=2-s2.0-85150796228&doi=10.1016%2fj.hazl.2023.100076&partnerID=40&md5=d58cf61cc185a53e1449cec0446f59cd |
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1779441363206537216 |
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13.211869 |