通过废物增值方法探索含油污泥灰与粉煤灰混合作为地聚合物粘合剂的未开发潜力

IF 6.6 Q1 ENGINEERING, ENVIRONMENTAL Journal of hazardous materials letters Pub Date : 2023-03-20 DOI:10.1016/j.hazl.2023.100076
Vicky Kumar , Shamsul Rahman Mohamed Kutty , Siti Nooriza Abd Razak , Nasir Shafiq , Abiola Adebanjo , Lavania Baloo , Ahmed-Aberkan Azougagh , Rilind Iseni
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引用次数: 1

摘要

在全球范围内,石油炼制过程中产生了大量的含油污泥。石油炼制含油污泥是石油炼制过程的主要副产品,也是石油和天然气工业污染的主要来源。在本研究中,响应面法(RSM)被用于优化和建模实验工作。在水玻璃(Na2SiO3)和氢氧化钠(NaOH)的固定组合下,经热处理的PROS取代了5 - 20%的粉煤灰(FA)。研究了PROS对PROS地聚合物砂浆(PGM)密度和抗压强度的影响。添加10% pro的PGM 28d后的最大抗压强度为38.17 MPa。FA-PROS对密度和抗压强度协同效应的二次模型p值均小于0.005。对FA-PROS粘结剂的协同效应进行优化,使两种材料的最大抗压强度和密度达到2200 kg/m3,理想系数为0.981。这项调查表明,用FA取代地聚合物砂浆中的PROS可以为更环保的地聚合物砂浆粘结材料提供新的供应链。
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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 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.

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来源期刊
Journal of hazardous materials letters
Journal of hazardous materials letters Pollution, Health, Toxicology and Mutagenesis, Environmental Chemistry, Waste Management and Disposal, Environmental Engineering
CiteScore
10.30
自引率
0.00%
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0
审稿时长
20 days
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