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409 results on '"Mudhoo, A."'

31. Beyond Freundlich and Langmuir: the Ruthven–virial equilibrium isotherm for aqueous-solid adsorption systems

Author

Khim Hoong Chu, Mohd Ali Hashim, Ackmez Mudhoo, and Jean Debord

Subjects
Virial isotherm, General Chemical Engineering, Materials Chemistry, Exponential integral isotherm, Implicit isotherm, General Chemistry, Adsorption isotherm, Biochemistry, Industrial and Manufacturing Engineering, Lambert W function
Abstract

Published in Chemical Papers. Full-text access:https://rdcu.be/cZGaK

Published
2022

37. Applications of subcritical and supercritical water conditions for extraction, hydrolysis, gasification, and carbonization of biomass: a critical review

Author

D. Lachos-Perez, A.B. Brown, A. Mudhoo, J. Martinez, M.T. Timko, M.A. Rostagno, and T. Forster-Carneiro

Subjects
Biomass, Subcritical water, Supercritical water, Waste-to-Energy, Fuel, TP315-360, Energy industries. Energy policy. Fuel trade, HD9502-9502.5
Abstract

This review summarizes the recent essential aspects of subcritical and supercritical water technology applied tothe extraction, hydrolysis, carbonization, and gasification processes. These are clean and fast technologies which do not need pretreatment, require less reaction time, generate less corrosion and residues, do not usetoxic solvents, and reduce the synthesis of degradation byproducts. The equipment design, process parameters, and types of biomass used for subcritical and supercritical water process are presented. The benefits of catalysis to improve process efficiency are addressed. Bioactive compounds, reducing sugars, hydrogen, biodiesel, and hydrothermal char are the final products of subcritical and supercritical water processes. The present review also revisits advances of the research trends in the development of subcriticaland supercritical water process technologies.

Published
2017
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38. Remediation of pharmaceuticals from contaminated water by molecularly imprinted polymers: a review

Author

Ehsan Nazarzadeh Zare, Zari Fallah, Van Thuan Le, Van-Dat Doan, Ackmez Mudhoo, Sang-Woo Joo, Yasser Vasseghian, Mahmood Tajbakhsh, Omid Moradi, Mika Sillanpää, and Rajender S. Varma

Subjects
Environmental Chemistry
Abstract

The release of pharmaceuticals into the environment induces adverse effects on the metabolism of humans and other living species, calling for advanced remediation methods. Conventional removal methods are often non-selective and cause secondary contamination. These issues may be partly solved by the use of recently-developped adsorbents such as molecularly imprinted polymers. Here we review the synthesis and application of molecularly imprinted polymers for removing pharmaceuticals in water. Molecularly imprinted polymers are synthesized via several multiple-step polymerization methods. Molecularly imprinted polymers are potent adsorbents at the laboratory scale, yet their efficiency is limited by template leakage and polymer quality. Adsorption performance of multi-templated molecularly imprinted polymers depends on the design of wastewater treatment plants, pharmaceutical consumption patterns and the population serviced by these wastewater treatment plants.

Published
2022

45. Dioxins and Furans: Sources, Impacts and Remediation

Author

Mudhoo, Ackmez, Thayalan, Ganeshan, Muthoora, Nella Jane, Muthoora, Manisha Nishi, Oozeer, Bibi Zainab, Rago, Yogeshwari Pooja, Ramphul, Mukshada Priyadarshini, Valaydon, Andini Keshni, Kumar, Sunil, Lichtfouse, Eric, Series editor, Schwarzbauer, Jan, Series editor, and Robert, Didier, Series editor

Published
2013
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50. Magnetic nanoadsorbents for micropollutant removal in real water treatment: a review

Author

Mika Sillanpää and Ackmez Mudhoo

Subjects
Magnetic nanoadsorbents, Water purification, business.industry, Magnetic separation, Context (language use), Portable water purification, Water industry, Review, Wastewater treatment, Pulp and paper industry, Slurry, Environmental Chemistry, Environmental science, Water treatment, Sewage treatment, business, Effluent
Abstract

Pure water will become a golden resource in the context of the rising pollution, climate change and the recycling economy, calling for advanced purification methods such as the use of nanostructured adsorbents. However, coming up with an ideal nanoadsorbent for micropollutant removal is a real challenge because nanoadsorbents, which demonstrate very good performances at laboratory scale, do not necessarily have suitable properties in in full-scale water purification and wastewater treatment systems. Here, magnetic nanoadsorbents appear promising because they can be easily separated from the slurry phase into a denser sludge phase by applying a magnetic field. Yet, there are only few examples of large-scale use of magnetic adsorbents for water purification and wastewater treatment. Here, we review magnetic nanoadsorbents for the removal of micropollutants, and we explain the integration of magnetic separation in the existing treatment plants. We found that the use of magnetic nanoadsorbents is an effective option in water treatment, but lacks maturity in full-scale water treatment facilities. The concentrations of magnetic nanoadsorbents in final effluents can be controlled by using magnetic separation, thus minimizing the ecotoxicicological impact. Academia and the water industry should better collaborate to integrate magnetic separation in full-scale water purification and wastewater treatment plants.

Published
2021

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