Article
Chemistry, Multidisciplinary
Sayed S. Metwally, Emad H. Borai, Mostafa M. Hamed, Tarek M. Mohamed, Mahmoud G. Hamed, Walaa R. Mohamed
Summary: Rice bran, as a stable and insoluble material with ionizable functional groups, has been used as a biosorbent to remove hazardous ions from radioactive waste. The experimental results show that rice bran has a high sorption capacity for altered hazardous ions and is effective in treating simulated radioactive waste containing interfering ions.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Environmental Sciences
V Jayakumar, S. Govindaradjane, P. Senthil Kumar, N. Rajamohan, M. Rajasimman
Summary: This study demonstrated the feasibility of cadmium removal using green algae, Caulerpa scalpelliformis, under controlled environmental conditions. The optimized conditions for maximum cadmium uptake were determined to be pH 4.9, adsorbent mass 2.1 gL-1, and shaking speed 90 rpm. The biosorption process was found to be endothermic, with a maximum cadmium uptake of 111.11 mg g-1 achieved at optimal conditions.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Physical
V Jayakumar, S. Govindaradjane, M. Rajasimman
Summary: The sorption efficiency of marine green macro algae Caulerpa scalpelliformis for heavy metal zinc from aqueous and industrial wastewater was explored in this study. The characteristics of the sorbent prepared, optimum operating conditions, and equilibrium studies were investigated. Results showed that the sorption mechanism followed pseudo-second order kinetics, with the Langmuir isotherm model fitting the data well and showing a maximum uptake of 83.3 mg/g of zinc. Overall, the sorption of zinc on green biomass was found to be feasible, spontaneous, and endothermic.
SURFACES AND INTERFACES
(2021)
Article
Biochemistry & Molecular Biology
Ivan Argatov, Johan Engblom, Vitaly Kocherbitov
Summary: In this study, a new flexible fitting model is introduced to validate the water sorption characteristics of the components in the stratum corneum. The results show that the lipids content has a negligible effect on the sorption of stratum corneum, and the overall sorption behavior can be well explained by the rule of mixtures.
BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
(2022)
Article
Engineering, Environmental
Alemtsehay Tesfay Reda, Dongxiang Zhang, Xiyan Xu
Summary: LiAlO2-Mel demonstrates high vapor iodine capture capacity and good regeneration ability, with chemisorption playing a critical role and physisorption dominating at lower temperatures.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Beilong Yuan, Fen Luo, Yulong Miao, Yuanyuan Zhao, Xirui Lu
Summary: Radioactive zeolite waste poses a potential threat to human health and the environment, and its treatment and disposal are urgent issues. This study successfully immobilized co-doped simulated radioactive contaminated zeolite and evaluated the effect of sintering temperature on the properties of the sintered matrix.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Review
Environmental Sciences
Sumona Show, Prasenjit Chakraborty, Bisheswar Karmakar, Gopinath Halder
Summary: The continuous discharge of ibuprofen in local water systems has become a growing concern due to its adverse environmental effects. In order to prevent further pollution, adsorption and bioremediation are considered more cost-effective and energy efficient methods for ibuprofen removal.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Hongjie Sheng, Yuan Yin, Leilei Xiang, Ziquan Wang, Jean Damascene Harindintwali, Jinjin Cheng, Jing Ge, Leigang Zhang, Xin Jiang, Xiangyang Yu, Fang Wang
Summary: This study investigated the mechanisms of interactions between N-acyl homoserine lactones (AHLs) and two maize straw-derived biochars (MBs) with different pyrolysis temperatures. It was found that biochar had the ability to adsorb AHLs, with higher sorption capacity observed in biochar pyrolyzed at 600 degrees C. The findings suggest that biochar can be specially prepared to mediate soil processes related to microbial communication.
Article
Engineering, Chemical
Yaqing Liu, Can Chen, Leqing He, Lin Hu, Zui Ding, Sen Liao, Ni Tan
Summary: The study involved the synthesis of a new fungal-modified material using various methods, characterization of its microstructure and morphology, and investigation into its uranium(VI) adsorption capacity. Optimal adsorption conditions and maximum capacity were determined through single-factor and orthogonal experiments. The target material exhibited good regeneration and uranyl selectivity, with Langmuir, Freundlich, and pseudosecond-order kinetic models fitting experimental data well. The adsorption mechanism was identified as mainly monolayer and chemical adsorption process.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Physical
Suleyman Inan, Vipul Vilas Kusumkar, Michal Galambos, Eva Viglasova, Ol'ga Rosskopfova, Martin Dano
Summary: This study focused on the use of Turkish perlite for the sorptive removal of Ba-133 and Cs-137 from aqueous solution. The results showed that the maximum removal percentages for Ba-133 and Cs-137 were 88.2% and 78.7% at pH 6 and pH 9, respectively. Sorption equilibrium was achieved relatively rapidly and experimental data fit well with pseudo-second-order and intraparticle diffusion models. Turkish perlite demonstrated preferential sorption of Ba-133 over Cs-137.
Article
Chemistry, Physical
Agata Stolarska, Teresa Rucinska
Summary: This study investigated mortars with varying amounts of recycled ceramic aggregate (RCA) to analyze the physical and mechanical parameters. The research found that an increase in RCA content led to a significant decrease in compressive strength, while changes in flexural strength were minimal. Additionally, the study revealed that the amount of RCA impacted the moisture absorption ability and thermal conductivity coefficient of the mortar.
Article
Materials Science, Multidisciplinary
Eun Ae Park, Hanbok Seo, Seung-Yop Lee
Summary: The study developed adsorbent-containing kapok fiber membranes with high burning rates to remove radionuclides and toxicants from liquid wastes and reduce the total waste volume. The desorption rate of the adsorbent powder was measured to be within 5% in aqueous solution, and the membranes showed a volume reduction of 82% without volatilizing the adsorbed cesium at 300 degrees C.
Article
Chemistry, Physical
Ewelina Pabis-Mazgaj, Pawel Pichniarczyk, Agata Stempkowska, Tomasz Gawenda
Summary: Increasing incidents of oil spills and the development of civilization have led to a higher demand for sorbents. However, the current production process for mineral sorbents has negative environmental impact. This study explored the possibility of using natural zeolite dust waste to produce oil sorbents without the need for the energy-consuming calcination process. The results showed that it is feasible to produce effective oil-spill sorbents from zeolite waste dust in a roller press by applying the relevant binding agent. The produced sorbents exhibited comparable performance in terms of petroleum sorption and drop strength to commercial sorbents, but with lower abrasion resistance. Further research is needed to enhance the abrasion performance of the manufactured granules.
Article
Energy & Fuels
Bao-Trong Dang, Obey Gotore, Rameshprabu Ramaraj, Yuwalee Unpaprom, Niwooti Whangchai, Xuan-Thanh Bui, Hideaki Maseda, Tomoaki Itayama
Summary: The biochar-inspired tertiary removal system effectively prevents the discharge of antibiotic residue from hospital wastewater treatment. The sorption performance of corncob biochar for different antibiotics was demonstrated, with varying sorption capacities and rates. It was found that the sorption capacity and binding strength parameters were related to pore size distribution of biochar, hydration effects, as well as the number of halogen atoms and functional groups in fluoroquinolones.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Engineering, Chemical
Mohammadmahdi Kamyabi, Khashayar Saleh, Reza Zarghami, Rahmat Sotudeh-Gharebagh
Summary: This study modeled the kinetics of water sorption by a bed of powder to estimate the characteristic time of caking under real and test environmental conditions. The experimental measurements showed that water uptake by the powder was faster in the caking device compared to the humidity chamber. By solving model equations, the mass diffusion coefficient (D) and the total mass transfer coefficient (K) of henna were predicted.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2021)
Article
Engineering, Environmental
R. O. Abdel Rahman, A. A. Zaki
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2020)
Article
Environmental Sciences
M. S. Gasser, E. El Sherif, H. S. Mekhamer, R. O. Abdel Rahman
ENVIRONMENTAL RESEARCH
(2020)
Article
Environmental Sciences
E. Phillip, K. S. Khoo, M. A. W. Yusof, R. O. Abdel Rahman
Summary: The study introduced the green application of POFA in the backfill barrier of DSRS borehole disposal facility. Experimental results showed that 30% POFA replacement improved geochemical conditions and enhanced Ra-226 confinement performance.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Editorial Material
Environmental Sciences
Yung-Tse Hung, Hamidi Abdul Aziz, Issam A. Al-Khatib, Rehab O. Abdel Rahman, Mario G. R. Cora-Hernandez
Article
Environmental Sciences
Rehab O. Abdel Rahman, Ahmed M. El-Kamash, Yung-Tse Hung
Summary: This paper summarizes and analyzes the applications of nano-zeolite in water and wastewater treatment. The authors introduce the characteristics and preparation techniques of nano-zeolite and analyze the research trends in this field. The characterization, testing schemes, and theoretical analysis methods for each application are summarized. Finally, the gaps and challenges in this field are concluded.
Review
Green & Sustainable Science & Technology
Rehab O. Abdel Rahman, Michael I. Ojovan
Summary: This research addresses the challenges in designing durable cementitious waste forms, summarizes the problematic characteristics of different types of wastes, and identifies factors that affect their durability. A guide to optimize the mix design of these waste forms was proposed, with a focus on using leaching tests to test the stabilization performance of nuclear waste forms.
Article
Engineering, Environmental
E. Phillip, K. S. Khoo, M. A. W. Yusof, R. O. Abdel Rahman
Summary: Investigated the effects of Palm Oil Fuel Ash (POFA) on the radionuclide retention characteristics of Ordinary Portland Cement (OPC), and found that POFA greatly improved the containment performance, especially under the coupled effects of progressive release and cooling down of Cs sources.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
M. S. Gasser, H. F. Kadry, Ahemd S. Helal, R. O. Abdel Rahman
Summary: A reliable process for recovering Uranium from acidic solutions was designed using liquid membrane technique. The use of a new stripping phase, Na2SO4 solution, improved the membrane stability compared to conventional phases. The engineered liquid membrane demonstrated effective chelation of Uranium species with Phenolic-oxime, nonyle, and tridecanol groups, allowing for selective Uranium recovery in the presence of high concentrations of Mo and Fe. The optimized membrane showed a fast and regenerable process, and also exhibited promising performance in Thorium recovery.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Chemistry, Analytical
M. Ghaly, S. S. Metwally, E. A. El-Sherief, E. A. Saad, R. O. Abdel Rahman
Summary: The study confirmed the feasibility of using nano-cryptomelane for the elimination of cobalt and cesium metal ions, with characterization showing a tunnel structure and particle size range. Batch experiments were conducted to determine the kinetic and equilibrium performance of the removal process, with Langmuir isotherm model found to be more fitting than Freundlich model for the equilibrium studies.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2022)
Editorial Material
Environmental Sciences
Yung-Tse Hung, Rehab O. Abdel Rahman, Hamidi Abdul Aziz, Issam A. Al-Khatib, Tsuyoshi Imai
Review
Green & Sustainable Science & Technology
Esther Phillip, Thye Foo Choo, Nurul Wahida Ahmad Khairuddin, Rehab O. Abdel Rahman
Summary: This review summarizes the application of geopolymers for the management of radioactive waste. Geopolymers are examined as sorbents for removing radio-contaminants from aqueous waste streams and as immobilization matrices for different radioactive wastes. The classification, radiation stability, and structural characterizations of geopolymers are summarized, and the gaps in their sustainable performance are identified.
Article
Chemistry, Physical
M. Ghaly, S. S. Metwally, R. O. Abdel Rahman
Summary: Cerium orthovanadate nano-rods were synthesized using a template-free low temperature method. The nano-rods exhibited smaller dimensions compared to other methods. The material was fully characterized and demonstrated buffer ability in acidic solutions and stability in alkaline and acidic eluents.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Review
Environmental Sciences
Rehab O. Abdel Rahman, Ahmed M. El-Kamash, Yung-Tse Hung
Summary: Permeable concrete, as a material for controlling water pollution, has been widely applied in low-impact development practices and has shown efficiency in mitigating the environmental impacts of urbanization. It can be used as a permeable reactive barrier to remediate groundwater and treat acid mine drainage. The current research focuses on material selection, mix design, and characterization techniques to evaluate the performance of permeable concrete. However, further research is needed to optimize the design of concrete barriers and minimize their environmental impacts.
Article
Nuclear Science & Technology
M. Aydia, R. O. Abdel Rahman, A. M. Rashad, K. M. El-Azony
Summary: By studying factors such as temperature, molar ratio, and pH, magnetic iron iodide nanoparticles (MIINPs) were successfully prepared for potential use in magnetic hyperthermia therapy. Both MIINPs-1 and MIINPs-2 exhibited superparamagnetic properties, with MIINPs-1 showing an absorption rate closer to the theoretical value compared to MIINPs-2.
ARAB JOURNAL OF NUCLEAR SCIENCES AND APPLICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Osama M. Farid, M. Ojovan, R. O. Abdel Rahman
Article
Environmental Sciences
Muqiu Hu, Xin Zhao, Jinghan Gu, Lulu Qian, Zhiqing Wang, Yuanyuan Nie, Xiaoyu Han, Long An, Haiqiang Jiang
Summary: Due to its simple process, environmental friendliness, and low operating costs, biometallurgy has become a popular technology for metals recovering from low-grade ores and tailings. An optimized agar was used to isolate and grow functional bacteria, resulting in the successful isolation of six functional stains. These strains were further tested for their ability to leach metals from polymetallic sulfide tailings, with significant improvements observed when the strains were mixed together. The selection of leaching process should be based on tailings composition and target metals.
ENVIRONMENTAL RESEARCH
(2024)
Review
Environmental Sciences
Saqib Hassan, Aswin Thacharodi, Anshu Priya, R. Meenatchi, Thanushree A. Hegde, R. Thangamani, Ht Nguyen, Arivalagan Pugazhendhi
Summary: An Endocrine Disrupting Chemical (EDC) is a compound that disrupts the function of the endocrine system and is found in the environment. EDCs, such as Bisphenol A and pesticides, have been shown to have negative effects on the female reproductive system. Understanding the relationship between EDCs and women's health is crucial for developing strategies to protect reproductive health and informing public policy decisions.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Lichang Zhou, Zhaoling Li, Boyi Cheng, Jinqi Jiang, Xinqi Bi, Zongping Wang, Guanghao Chen, Gang Guo
Summary: Thiosulfate can promote sulfur-mediated bacterial activity, inhibit glycogen accumulating organisms, and enhance denitrification efficiency. After the carbon source is reduced, the competitive ability of glycogen accumulating organisms increases, resulting in reduced sulfate reduction.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Claire E. Campbell, Devyn L. Cotter, Katherine L. Bottenhorn, Elisabeth Burnor, Hedyeh Ahmadi, W. James Gauderman, Carlos Cardenas-Iniguez, Daniel Hackman, Rob McConnell, Kiros Berhane, Joel Schwartz, Jiu-Chiuan Chen, Megan M. Herting
Summary: Recent studies have found a connection between air pollution and increased risk for behavioral problems during development. However, more longitudinal studies are needed to investigate how exposure during the transition to adolescence may affect emotional behaviors.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Jing-hong Liang, Ru-yu Yang, Mei-ling Liu, Ying-qi Pu, Wen-wen Bao, Yu Zhao, Li-xin Hu, Yu-shan Zhang, Shan Huang, Nan Jiang, Xue-ya Pu, Shao-yi Huang, Guang-hui Dong, Ya-jun Chen
Summary: This study examines the association between urban Green and blue spaces (GBS) exposure and Emotion and behavior problems (EBP) in youth populations. The findings suggest that higher exposure to GBS, particularly green spaces (GS) and blue spaces (BS), is associated with a decrease in the risk of developing total difficulties in young individuals. The joint effect of GS and BS may also contribute to the decrease in EBPs.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Diego Ruiz-Sobremazas, Mario Ruiz Coca, Miguel Morales-Navas, Rocio Rodulfo-Cardenas, Caridad Lopez-Granero, Maria Teresa Colomina, Cristian Perez-Fernandez, Fernando Sanchez-Santed
Summary: Air pollution is associated with a range of health issues and gestational exposure to environmental pollutants may be linked to neurodevelopmental disorders. This study investigated the effects of oral gestational exposure to particulate matter (PM) on ultrasonic vocalizations (USV). The findings suggest that this exposure may lead to social deficits and abnormal gene expression related to neurotransmitter systems. Further research is needed to better understand the effects of air pollution on neurodevelopmental disorders and the neurotransmission systems involved.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Yagmur Kabakci, Sadiye Kosar, Ozgur Dogan, Fehmi Gorkem Uctug, Osman Atilla Arikan
Summary: This study investigated the effect of electrohydrolysis pretreatment on municipal solid waste. The results showed that applying electrohydrolysis pretreatment increased methane production and reduced the time required for hydrolysis, suggesting it is a promising method to improve anaerobic digestion efficiency.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Chuanwu Zhao, Yaozhong Pan, Hanyi Wu, Yu Zhu
Summary: This study analyzed the impact of industrial zones on urban heat islands using remote sensing images and a novel spectral index. The research found that the contraction or expansion of industrial zones has a significant effect on land surface temperature. The results are valuable for environmental assessment and fine management of industrial cities.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Bang Du, Zhongzhong Wang, Piet N. L. Lens, Xinmin Zhan, Guangxue Wu
Summary: This study investigated the performance, syntrophic relationships, microbial communities, and metabolic pathways of ethanol-fed reactors with different operational modes and solids retention times. The results showed that different microorganisms were enriched under different SRT conditions, and syntrophic bacteria related to methane production could be enriched under low SRT conditions.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Gokulan Ravindiran, Sivarethinamohan Rajamanickam, Muralikrishnan Ramalingam, Gasim Hayder, Balamurugan Karupaiya Sathaiah, Madhava Krishna Reddy Gaddam, Senthil Kumar Muniasamy, Priya Arunkumar
Summary: The present study investigated the sustainable approach for wastewater treatment using waste algal blooms. The biochar produced by the marine algae Ulva reticulata was used to remove chromium, nickel, and zinc from aqueous solutions. The study examined the adsorbents' properties and stability using SEM/EDX, FTIR, and XRD. The results showed that the biochar had high removal efficiency for the toxic metals, and the packed bed column effectively removed the heavy metal ions. The Thomas and Adams-Bohart models were found to best fit the regression values, and desorption studies were conducted to understand the sorption and elution processes.
ENVIRONMENTAL RESEARCH
(2024)
Review
Environmental Sciences
Vignesh Vinayagam, Kavitha Nagarasampatti Palani, Sudha Ganesh, Siddharth Rajesh, Vedha Varshini Akula, Ramapriyan Avoodaiappan, Omkar Singh Kushwaha, Arivalagan Pugazhendhi
Summary: The presence of pollutants in water contributes to global pollution and poses significant threats to humans and wildlife. Finding effective wastewater treatment techniques is crucial for reducing pollutant accumulation in the environment. This paper highlights recent advances in the electrochemical advanced oxidation method and other processes for treating pharmaceuticals, dyes, and pesticide-polluted effluents.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
M. M. M. Ahmed, Kai-Yue Chen, Fang-Yu Tsao, Yi-Cheng Hsieh, Yu-Ting Liu, Min Tzou
Summary: This study investigated the sorption of citric acid onto humic acid-iron hydr(o)xide coprecipitate (HAFHCP) and the reciprocal effects of citric acid and P sorption on HAFHCP. The results showed that citric acid could increase P availability and have an impact on P sorption.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Xibo Xu, Zeqiang Wang, Xiaoning Song, Wenjie Zhan, Shuting Yang
Summary: The selection of predictor variables is crucial in building a digital mapping model for potentially toxic elements (PTEs) in soil. Traditionally, spatial and spectral parameters have been used as predictor variables, but the temporal dimension is often overlooked. This study demonstrates the value of incorporating temporal indices in the model, leading to significant performance improvements. The temporal-spatial-spectral covariate combinations used in a random forest (RF) algorithm achieve satisfactory mapping accuracy and outperform other methods.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Yan Pei, Xun Liu, Mengbo Cao, Zijun Wang, Hongbing Yang
Summary: Heteroatom doping can reconfigure the electronic structure of heterogeneous catalysts, leading to the development of advanced oxidation water purification materials with superior performance and stability. In this study, a series of catalysts with different elemental doping were prepared using a simple and environmentally friendly method. The S-doped NiCo2O4 catalyst showed excellent catalytic performance for the removal of Tetracycline, with significantly increased kinetic constant and high oxidation and mineralization efficiency in a wide pH range. The degradation process was dominated by non-radical oxidation pathway after S doping, and the overall process moved towards low toxicity.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Srivalli Thimmarayan, Harshavardhan Mohan, Gaddapara Manasa, Karthi Natesan, Shanmugam Mahendran, Pavithra Muthukumar Sathya, Byung-Taek Oh, R. Ravi Kumar, Rangasamy Sigamani Gandhimathi, Arul Jayaprakash, Kamala-Kannan Seralathan
Summary: This study investigated the bacterial degradation of naphthalene (NPT) isolated from crude oil-contaminated soil. Bacillus sp. GN 3.4, a potential bacteria for NPT biodegradation, was isolated and the optimal conditions for NPT degradation were determined. The study suggests that Bacillus sp. GN 3.4 could potentially aid in bioremediation by eliminating NPT from the soil.
ENVIRONMENTAL RESEARCH
(2024)