Article
Chemistry, Applied
Linqing Liang, Jiahong Wang, Yanxin Zhang
Summary: In this study, H2O2 oxidized magnetic mesoporous carbon hollow microspheres (Fe3O4@void@C@H2O2) were synthesized for the removal of Cr(III)-EDTA and Cr(III) from high salinity wastewater. The Fe3O4@void@C@H2O2 showed strong affinity and high stability for Cr(III) and Cr(III)-EDTA, even in high salinity water. The results highlight the great potential of Fe3O4@void@C@H2O2 for the adsorptive removal of Cr (III) and its chelate from high salinity wastewater.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Kanfolo Franck Herve Yeo, Chaokun Li, Hui Zhang, Jin Chen, Wendong Wang, Yingying Dong
Summary: Arsenic contamination in water bodies, especially groundwater, has become a widespread issue in recent decades. Traditional methods for arsenic removal are costly and produce sludge, limiting their application in less developed areas. The use of adsorbents derived from natural materials is a more cost-effective approach for arsenic removal.
Article
Environmental Sciences
Jyoti Singh, Abhishek Kumar, Ayush Pathak, Tapas Palai
Summary: In this study, low-cost bio-adsorbents including sugarcane bagasse, rice husk, and tea waste were used for the adsorptive removal of arsenite. The adsorbents were treated with HCl and showed improved removal efficiencies. The maximum removal efficiency of 99.5% was achieved using HCl-treated sugarcane bagasse at room temperature and specific operating conditions.
WATER AIR AND SOIL POLLUTION
(2023)
Review
Engineering, Environmental
Adithya Sridhar, Muthamilselvi Ponnuchamy, Ashish Kapoor, Sivaraman Prabhakar
Summary: This article emphasizes the potential of using food waste as dye adsorbents and discusses the factors affecting adsorption efficacy, while also highlighting the importance of integrating information and communication technology approaches with adsorption isotherms and kinetic models to improve modeling performance.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Applied
Attaullah Bukhari, Zeeshan Hassan, Madiha Atta, Arif Nazir, Farheen Aslam, Amani Naouar, Foziah F. Al-Fawzan, Siham A. Alissa, Munawar Iqbal, Naveed Ahmad
Summary: This study focused on the synthesis of a chitosan-cellulose composite membrane derived from waste Labeo rohita fish scales for the removal of Cr(III) from aqueous solution. The results showed that the composite membrane had great potential for metal removal.
ADSORPTION SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
Jenan A. Al-Najar, Shurooq Talib Al-Humairi, Tagreed Lutfee, Deepanraj Balakrishnan, Ibham Veza, Manzoore Elahi M. Soudagar, Islam M. R. Fattah
Summary: This study investigates the potential of natural adsorbents, namely animal bones and anise residues, for removing oil from water. The results show that animal bones exhibit superior oil removal capacity compared to anise residues, removing 45 mg/g of oil compared to 30 mg/g. Additionally, animal bones achieve a higher percentage removal rate of 94% compared to 70% for anise residues. Various kinetic and adsorption models were used to analyze the adsorption process.
Article
Engineering, Environmental
Mashael Al-Maas, Joel Minier-Matar, Igor Krupa, Mariam Al Ali Al-Maadeed, Samer Adham
Summary: Polymeric adsorbents (PAs) have been evaluated for the removal of emulsified oil from industrial wastewater (WW) in a fixed-bed assessment. A unique column setup and continuous testing protocol were used to simulate real conditions, and four cutting-edge PAs were evaluated. The results showed that PA4 has strong potential for industrial WW treatment due to its high capacity and excellent performance.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Review
Chemistry, Multidisciplinary
Hercules Abie Pereira, Paola Rosiane Teixeira Hernandes, Matias Schadeck Netto, Gabriel Diogo Reske, Viviane Vieceli, Luis Felipe Silva Oliveira, Guilherme Luiz Dotto
Summary: Glyphosate is an herbicide used for weed control in agriculture, but it is also considered a potentially carcinogenic pollutant, leading to soil and water contamination. Advanced techniques are needed to remove glyphosate from the environment.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Article
Polymer Science
Xiaolin Xue, Wei Yuan, Zhuo Zheng, Jian Zhang, Chenghong Ao, Jiangqi Zhao, Qunhao Wang, Wei Zhang, Canhui Lu
Summary: The iron/carbon aerogel demonstrated high efficiency in removing toxic Cr(VI) from wastewaters, with superb adsorption capacity and rate. It could be easily separated from water after adsorption, showcasing great potential in water treatment applications.
Article
Green & Sustainable Science & Technology
Kalpana Manoharan, G. Manimaran, Sankalp Rao Yerra
Summary: Industrial effluent containing heavy metals poses a risk to the environment if not treated properly. This research focuses on using natural adsorbents like Ground Gulmohar seeds and Waste Tea powder to remove mercury from wastewater. The efficiency of these adsorbents was compared with Powdered Activated Carbon. The findings demonstrate that Waste Tea powder and Ground Gulmohar seeds have high efficiency in removing mercury from wastewater.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Materials Science, Multidisciplinary
Guilherme Pereira Schoeler, Benedict C. Okeke, Thays Franca Afonso, Carolina Faccio Demarco, Daisa Hakbart Bonemann, Anderson Schwingel Ribeiro, Maurizio Silveira Quadro, Simone Pieniz, Rafael de Avila Delucis, Tito Roberto Sant 'Anna Cadaval Jr, Robson Andreazza
Summary: This study evaluates the effectiveness of rigid polyurethane foam - green liquor dregs composite for removing Cr(III) from water. The results show that green liquor dregs can effectively remove chromium from water and can be used to construct a dregs-PU hybrid material for potential extraction of Cr(III).
Article
Environmental Sciences
Maria Eduarda Barbosa Araujo, Vanderlane Cavalcanti Silva, Jucielle Veras Fernandes, Juliana Melo Cartaxo, Alisson Mendes Rodrigues, Romualdo Rodrigues Menezes, Gelmires de Araujo Neves
Summary: This study evaluated waste rock from bentonite mining as potential adsorbents for removing cationic dyes from contaminated water. The waste samples were characterized and their adsorption efficiency was investigated. Sample AM02 showed the best adsorptive performance for both dyes, with removal rates higher than 90%. The adsorption process was predominantly endothermic and spontaneous. Waste rock samples proved to be promising candidates for removing cationic dyes.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Jie Yang, Zuobei Wang, Ruonan Li, Xiaofeng Xu, Junrui Liu, You-Gui Huang, Xin Ye, Wei Wang
Summary: Excessive phosphorus in water is a global problem causing eutrophication. Adsorbents play a key role in treating phosphorus-containing wastewater. In this study, Ce/Fe adsorbents were synthesized and characterized. Ce/Fe(-)15/3, with a Ce loading of 28.33 wt% and Fe loading of 5.66 wt%, exhibited high P adsorption capacity and selectivity in different solutions. The adsorption behavior of Ce/Fe-15/3 was well described by the Langmuir and pseudo-second-order models.
Article
Green & Sustainable Science & Technology
Theo Guerin, Nadege Oustriere, David Bulteel, Damien Betrancourt, Alina Ghinet, Sandhya Malladi, Justice G. G. Kaleo-Bioh, Amaury Blanc-Brude, Abraham Pappoe, Christophe Waterlot
Summary: The study investigated two industrial wastes (IW1 and IW2) as potential sorbents for removing cadmium and lead from contaminated water. IW2 was found to be more effective in cadmium sorption compared to IW1 and activated charcoal Norit (AC). Although slightly less effective in lead retention, IW2 can still be considered as an interesting and cost-effective sorbent. The sorption processes were mainly explained by precipitation, and the study highlighted the potential of these industrial wastes as efficient materials for water depollution.
JOURNAL OF CLEANER PRODUCTION
(2022)
Review
Chemistry, Physical
Katarzyna Staszak, Izabela Kruszelnicka, Dobrochna Ginter-Kramarczyk, Wojciech Gora, Marek Baraniak, Grzegorz Lota, Magdalena Regel-Rosocka
Summary: The review summarizes the recent advances in the removal of Cr(III) from industrial effluents. Despite being less harmful to the aquatic environment than Cr(VI), restrictions on the release of Cr (III) into water are necessary. Efficient techniques for Cr(III) removal have been developed in response to the problem of chromium wastewater containing Cr(VI) ions. The review discusses various hydrometallurgical operations for Cr(III) removal, including precipitation, adsorption, ion exchange, extraction, membrane techniques, microbial-enhanced techniques, and electrochemical methods, along with their advantages and disadvantages. Perspectives for the future, aligned with circular economy and low-environmental impact, are also briefly discussed.
