Plastics are an essential commodity due to their superior engineering properties, durability and ... more Plastics are an essential commodity due to their superior engineering properties, durability and low cost for utilization in various commercial products. However, the degradation of plastics due to several environmental stresses has led to the formation of microplastics (MPs). MPs have risen to the top of environmental concerns due to their affinity to pollute the environment and to pass it to the food chain, threatening human health. In this context, attempts have been made to extract and characterise MPs from aqueous and solid matrices. A problem that not only hampers research but also regulatory decisions is the variety of methods used for the extraction and characterisation of MPs, especially in organic solid matrices (OSMs) with organic matter >5%, making the comparison of results difficult. This paper aims to address this by critically assessing the methodologies used for the extraction and qualitative and quantitative characterisation of MPs in OSMs. Further, the current i...
This study examines whether consumers’ behavior affects e-waste recycling in the UAE. This paper ... more This study examines whether consumers’ behavior affects e-waste recycling in the UAE. This paper provides a theoretical model of e-waste recycling behavior based on the theory of planned behavior (TPB), and it goes on to analyze the impact of environmental consciousness, infrastructural support, and costs in e-waste recycling. To assess this study’s constructs, a survey instrument is created. The theoretical model is tested using data gathered from a survey of UAE residents. PLS-SEM (partial least squares structural equations modeling) is used to assess the data. The results support the use of the TPB in the e-waste recycling behavior context. Furthermore, this study shows intriguing findings regarding the effect of environmental consciousness, perceived infrastructural support, and the cost of e-waste recycling. Environmental consciousness shows a positive moderation effect on the association between e-waste recycling attitudes and intentions. This finding implies that the environm...
Sustainable Development and Social Responsibility—Volume 1, 2020
Carbon dioxide capture and storage (CCS) is an effective method of reducing CO2 emissions into th... more Carbon dioxide capture and storage (CCS) is an effective method of reducing CO2 emissions into the atmosphere. In this study, improved mineral carbonation is evaluated as a potential for CCS, where CO2 is sequestered in a permanent stable carbonated form. Raw materials were selected from the UAE industrial residues like steel-making, cement and acetylene production because they have calcium-rich content as calcium oxide and/or calcium silicate, which have the potential to store CO2 in the form of permanently stable carbonate minerals. The solid particles were pre-treated, then subjected to direct gas–solid carbonation reaction. Gas analyzer was installed at the output stream of the testing unit to measure the concentration of unreacted CO2 consequently, and calculate CO2 captured by the difference between the initial and final concentration. The carbonated products were characterized using pH, conductivity, TDS, thermal gravimetric analysis (TGA) and scanning electron microscope (SEM) to determine the overall sequestration capacity and efficiency of these waste materials for CCS. Based on the total calcium content, the calculated sequestration of CO2 was: 0.27 kg CO2/kg-ladle furnace (LF) slag, 0.72 kg CO2/kg cement kiln dust (CKD) and 0.58 kg CO2/kg carbide lime waste (CLW).
Rehab, A., Akelah, A. and El-Gamal, MM (2002), Controlled-release systems based on the intercalat... more Rehab, A., Akelah, A. and El-Gamal, MM (2002), Controlled-release systems based on the intercalation of polymeric metribuzin onto montmorillonite. Journal of Polymer Science Part A: Polymer Chemistry, 40: 25132525. doi: 10.1002/pola. 10326
Plastics are an essential commodity due to their superior engineering properties, durability and ... more Plastics are an essential commodity due to their superior engineering properties, durability and low cost for utilization in various commercial products. However, the degradation of plastics due to several environmental stresses has led to the formation of microplastics (MPs). MPs have risen to the top of environmental concerns due to their affinity to pollute the environment and to pass it to the food chain, threatening human health. In this context, attempts have been made to extract and characterise MPs from aqueous and solid matrices. A problem that not only hampers research but also regulatory decisions is the variety of methods used for the extraction and characterisation of MPs, especially in organic solid matrices (OSMs) with organic matter >5%, making the comparison of results difficult. This paper aims to address this by critically assessing the methodologies used for the extraction and qualitative and quantitative characterisation of MPs in OSMs. Further, the current i...
This study examines whether consumers’ behavior affects e-waste recycling in the UAE. This paper ... more This study examines whether consumers’ behavior affects e-waste recycling in the UAE. This paper provides a theoretical model of e-waste recycling behavior based on the theory of planned behavior (TPB), and it goes on to analyze the impact of environmental consciousness, infrastructural support, and costs in e-waste recycling. To assess this study’s constructs, a survey instrument is created. The theoretical model is tested using data gathered from a survey of UAE residents. PLS-SEM (partial least squares structural equations modeling) is used to assess the data. The results support the use of the TPB in the e-waste recycling behavior context. Furthermore, this study shows intriguing findings regarding the effect of environmental consciousness, perceived infrastructural support, and the cost of e-waste recycling. Environmental consciousness shows a positive moderation effect on the association between e-waste recycling attitudes and intentions. This finding implies that the environm...
Sustainable Development and Social Responsibility—Volume 1, 2020
Carbon dioxide capture and storage (CCS) is an effective method of reducing CO2 emissions into th... more Carbon dioxide capture and storage (CCS) is an effective method of reducing CO2 emissions into the atmosphere. In this study, improved mineral carbonation is evaluated as a potential for CCS, where CO2 is sequestered in a permanent stable carbonated form. Raw materials were selected from the UAE industrial residues like steel-making, cement and acetylene production because they have calcium-rich content as calcium oxide and/or calcium silicate, which have the potential to store CO2 in the form of permanently stable carbonate minerals. The solid particles were pre-treated, then subjected to direct gas–solid carbonation reaction. Gas analyzer was installed at the output stream of the testing unit to measure the concentration of unreacted CO2 consequently, and calculate CO2 captured by the difference between the initial and final concentration. The carbonated products were characterized using pH, conductivity, TDS, thermal gravimetric analysis (TGA) and scanning electron microscope (SEM) to determine the overall sequestration capacity and efficiency of these waste materials for CCS. Based on the total calcium content, the calculated sequestration of CO2 was: 0.27 kg CO2/kg-ladle furnace (LF) slag, 0.72 kg CO2/kg cement kiln dust (CKD) and 0.58 kg CO2/kg carbide lime waste (CLW).
Rehab, A., Akelah, A. and El-Gamal, MM (2002), Controlled-release systems based on the intercalat... more Rehab, A., Akelah, A. and El-Gamal, MM (2002), Controlled-release systems based on the intercalation of polymeric metribuzin onto montmorillonite. Journal of Polymer Science Part A: Polymer Chemistry, 40: 25132525. doi: 10.1002/pola. 10326
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