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Xin Zhang, Qiuwan Shen, Kuanyu Zhu, Gaokui Chen, Guogang Yang and Shian Li
CaO-based adsorbent cycling carbon capture technology is an effective way to reduce CO2 emissions from marine exhaust gases. Metal-modified CaO-based adsorbents represent one of the important ways to improve the cyclic CO2 capture capacity. In order to o...
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Rodrigo Ortega-Toro, Ángel Villabona-Ortíz, Candelaria Tejada-Tovar, Adriana Herrera-Barros and Daniela Cabrales-Sanjuan
Chemically modified bioadsorbents were prepared using sawdust (Aspidosperma polyneuron) functionalized with urea at different concentrations (BC-1M, BC-3M, and BC-6M) to evaluate their adsorption capacity by the methylene blue method. Fourier transform s...
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Candelaria Tejada-Tovar, Ángel Villabona-Ortíz and Rodrigo Ortega-Toro
The pollution of water bodies due to the discharge of effluents without treatment is a global problem. Therefore, different technologies have been implemented for the removal of contaminants from wastewater before the final disposition. Among them, adsor...
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Miao Liu, Yi Wang, Yingjun Wu, Chunyang Liu and Xin Liu
Graphene oxide is a two-dimensional material that has been extensively studied in various fields due to its good mechanical properties, water dispersibility, and a large number of oxygen-containing functionalities on its surface. In this study, graphene ...
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Marwa El-Azazy, Ahmed S. El-Shafie, Aya Ashraf and Ahmed A. Issa
Biosorptive removal of basic fuchsin (BF) from wastewater samples was achieved using the recycled agro-wastes of pistachio nut shells (PNS). Seven adsorbents were developed; raw shells (RPNS) and the thermally activated biomasses at six different tempera...
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Houwaida Nefzi, Manef Abderrabba, Sameh Ayadi and Jalel Labidi
Environmental contamination by toxic heavy metals is a serious worldwide phenomenon. Thus, their removal is a crucial issue. In this study, we found an efficient adsorbent to remove Cu2+ and Ni2+ from aqueous solution using two materials. Chemical modifi...
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Marton Czikkely, Eva Neubauer, Ilona Fekete, Prespa Ymeri and Csaba Fogarassy
Heavy metal contamination of natural rivers and wastewaters is a problem for both the environment and human society. The accumulation and adsorption of heavy metals could happen with several organic and inorganic matters, but the most used adsorbents are...
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Rong Cheng, Liang-Jie Shen, Ying-Ying Zhang, Dan-Yang Dai, Xiang Zheng, Long-Wen Liao, Lei Wang and Lei Shi
The removal of phosphate in water is crucial and effective for control of eutrophication, and adsorption is one of the most effective treatment processes. In this study, microporous lanthanum-chitosan magnetic spheres were successfully synthetized and us...
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P. Mohajeri, C. Smith, M. R. Selamat and H. Abdul Aziz
In recent years, the need for a safe and modern composite barrier for the prevention of groundwater contamination and the provision of geo-environmental protection has been studied together with the need of designing a low-cost and effective liner for is...
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Xiaodong Zheng, Bin Li, Bo Zhu, Rui Kuang, Xuan Kuang, Baoli Xu and Meihu Ma
Crayfish carapace, a plentiful waste in China, was applied to remove divalent heavy metal ions?copper (Cu), cadmium (Cd), zinc (Zn), and lead (Pb)?from wastewater. The adsorption capacities of crayfish carapace micro-powder (CCM) for heavy metal ions wer...
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Irene Yukiko Kimura, Valfredo Tadeu de Fávere, Mauro César Marghetti Laranjeira, Atche Josué, Amauri do Nascimento (Author)
Pág. 1161 - 1166
Chitosan (87.2% NH2) was employed as adsorbent for the orange 16 reactive dye in an aqueous medium. The dye is used in textile dyeing. Isotherms of adsorption were determined according to variations of pH and the initial concentration of the dye. Results...
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Jin-Kyu Kang, Khonekeo Kingkhambang, Chang-Gu Lee and Seong-Jik Park
Phosphorus is an essential macroelement in plant growth and the human body, but excessive water enrichment with phosphorus is a global threat to water quality. To address this problem, the development of an efficient, affordable adsorbent for use in remo...
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Paulo A. Dumont,David. R. Chadwick,Steve Robinson
Abstract The aim of this study was to determine the effectiveness of wood residues in the removal of nutrients (ammonium-N; NH4-N) from nutrient-rich (NH4-N) waters. The water holding capacity of the wood materials was also determined. Carried out...
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Paulo A. Dumont,David. R. Chadwick,Steve Robinson
Abstract The aim of this study was to determine the effectiveness of wood residues in the removal of nutrients (ammonium-N; NH4-N) from nutrient-rich (NH4-N) waters. The water holding capacity of the wood materials was also determined. Carried out...
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Allan Tejeda, Arturo Barrera and Florentina Zurita
In this study, the aim was to evaluate the adsorption capacity of a volcanic rock commonly used in Mexico as filter medium in constructed wetlands (locally named tezontle) for carbamazepine (CBZ) adsorption, as well as to analyze the change in its capaci...
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Allan Tejeda, Arturo Barrera, Florentina Zurita
Pág. 1 - 14
In this study, the aim was to evaluate the adsorption capacity of a volcanic rock commonly used in Mexico as filter medium in constructed wetlands (locally named tezontle) for carbamazepine (CBZ) adsorption, as well as to analyze the change in its capaci...
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Heng Li, Junpeng Hua, Ranran Li, Yan Zhang, Huanhuan Jin, Shijing Wang and Guoyin Chen
Since ferric tetroxide (Fe3O4) has strong magnetic properties, coating amorphous silica (SiO2) with Fe3O4 nanoparticles can protect the magnetic Fe3O4 particles and form a new magnetic adsorbent with a core?shell structure and small pore size, the strong...
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Kateryna Stepova, Iryna Fediv, Au?ra Ma?eikiene, Julita ?arko and Jonas Ma?eika
The research focuses on ammonia and phosphate removal from wastewater by using a novel metal and microwave-treated clinoptilolite. For increasing adsorption capacity, the samples were calcinated or microwave irradiated in the solutions of Fe(III), Cu (II...
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Ana Fernando, Sofia Monteiro, Filomena Pinto and Benilde Mendes
In this study, waste olive cake (OC) was utilized as the raw material for the production of biosorbents by chemical treatment and its adsorption capacity for zinc ion was evaluated. Tests were conducted with the total biomass (T) and with the fraction > ...
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Nabilah Zaini and Khairul Sozana Nor Kamarudin
Amongst the strategies applicable for CO2 capture and sequestration, the adsorption process has a high potential to be applied as an alternative CO2 separation strategy as it offers large adsorption capacity, requires low energy for regeneration with eco...
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