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Nanomaterials-based treatment options for chromium in aqueous environments

Title
Nanomaterials-based treatment options for chromium in aqueous environments
Author
박재우
Keywords
Cr(VI) removal; Adsorption; Electrocoagulation; Photoelectrocatalysis; Fuel cell; Performance evaluation
Issue Date
2019-09
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
ENVIRONMENT INTERNATIONAL, v. 130, article no. UNSP 104748
Abstract
Sustainable development and the restoration of ecosystems are the important goals for civilization. Currently, heavy metal contamination of aquatic environments has become a serious issue. Chromium (Cr) is simultaneously an essential metallic element and one of 20 chemicals posing a maximum threat to living beings. To mitigate that threat, various treatment methods have been developed, including adsorption, electrocoagulation, photoelectrocatalysis, fuel cells, bioremediation, chemical precipitation, ultrafiltration, ion exchange, and co-precipitation. However, selection of the most energy- and cost-efficient wastewater treatment option has proven challenging, as each approach is subject to shortcomings involving energy consumption, treatment capacity, and efficiency. This review describes the potential role of diverse functional nanomaterials (e.g., iron/iron oxide nanoparticles, carbon nanostructures, metal organic frameworks, and their commercial counterparts) in treatment of Cr in aqueous environments with respect to key figure of merits, such as, adsorption capacity, removal efficiency, and partition coefficient. In addition, their performance was compared with the most common treatment options. The results of this study will help determine the most effective and economical options for control of Cr in aquatic environments.
URI
https://www.sciencedirect.com/science/article/pii/S0160412019304118?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/151437
ISSN
0160-4120; 1873-6750
DOI
10.1016/j.envint.2019.04.020
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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