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Demonstration of a feasible energy-water-environment nexus: waste sulfur dioxide for water treatment.
Appl Energy. 2019 Sep 15; 250:1011-1022.AE

Abstract

Sulfur dioxide (SO2) mitigation and water treatment are two key aspects towards a sustainable environment, and simultaneous achievement of these two goals is extremely attractive. Inspired by the iron ion catalyzed auto-oxidation of aqueous SO2 (i.e., Fe(II)/sulfite process), that generates intermediary sulfate radical able to oxidize organic compounds, we propose a feasible energy-water-environment nexus by using waste SO2 to alleviate water contamination. As a demonstration, electrolysis is used to assist Fe(II)/sulfite (i.e., electro/Fe(II)/sulfite) process to enhance contaminant removals. Results showed 91% of 10 μM ibuprofen (a nonsteroidal anti-inflammatory drug) contaminant at neutral pH was removed, due to sulfate radical oxidation. Synergy mechanisms of electro/Fe(II)/sulfite process were revealed. Moreover, the electro/Fe(II)/sulfite process could effectively degrade contaminants in water bodies from fields, indicating its promising practical application. Energetic analysis indicated that electric treatment cost is 8.65 cent/m3, and is affordable by most water treatment plants. Possible procedures to realize the proposed energy-water-environment nexus were also suggested. The strategy proposed in this study adds new value to the waste produced in energy production and will create renewed interest considering its potential use towards environmental treatment.

Authors+Show Affiliations

Department of Civil and Environmental Engineering, Northeastern University, Boston, MA, USA.Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.Department of Civil and Environmental Engineering, Northeastern University, Boston, MA, USA.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32581421

Citation

Chen, Long, et al. "Demonstration of a Feasible Energy-water-environment Nexus: Waste Sulfur Dioxide for Water Treatment." Applied Energy, vol. 250, 2019, pp. 1011-1022.
Chen L, Xu G, Rui Z, et al. Demonstration of a feasible energy-water-environment nexus: waste sulfur dioxide for water treatment. Appl Energy. 2019;250:1011-1022.
Chen, L., Xu, G., Rui, Z., & Alshawabkeh, A. N. (2019). Demonstration of a feasible energy-water-environment nexus: waste sulfur dioxide for water treatment. Applied Energy, 250, 1011-1022. https://doi.org/10.1016/j.apenergy.2019.05.108
Chen L, et al. Demonstration of a Feasible Energy-water-environment Nexus: Waste Sulfur Dioxide for Water Treatment. Appl Energy. 2019 Sep 15;250:1011-1022. PubMed PMID: 32581421.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Demonstration of a feasible energy-water-environment nexus: waste sulfur dioxide for water treatment. AU - Chen,Long, AU - Xu,Guiyin, AU - Rui,Zhenhua, AU - Alshawabkeh,Akram N, Y1 - 2019/05/14/ PY - 2020/09/15/pmc-release PY - 2020/6/26/entrez PY - 2020/6/26/pubmed PY - 2020/6/26/medline KW - energy-water-environment nexus KW - fossil fuel KW - sulfate radical KW - sulfur dioxide KW - water treatment SP - 1011 EP - 1022 JF - Applied energy JO - Appl Energy VL - 250 N2 - Sulfur dioxide (SO2) mitigation and water treatment are two key aspects towards a sustainable environment, and simultaneous achievement of these two goals is extremely attractive. Inspired by the iron ion catalyzed auto-oxidation of aqueous SO2 (i.e., Fe(II)/sulfite process), that generates intermediary sulfate radical able to oxidize organic compounds, we propose a feasible energy-water-environment nexus by using waste SO2 to alleviate water contamination. As a demonstration, electrolysis is used to assist Fe(II)/sulfite (i.e., electro/Fe(II)/sulfite) process to enhance contaminant removals. Results showed 91% of 10 μM ibuprofen (a nonsteroidal anti-inflammatory drug) contaminant at neutral pH was removed, due to sulfate radical oxidation. Synergy mechanisms of electro/Fe(II)/sulfite process were revealed. Moreover, the electro/Fe(II)/sulfite process could effectively degrade contaminants in water bodies from fields, indicating its promising practical application. Energetic analysis indicated that electric treatment cost is 8.65 cent/m3, and is affordable by most water treatment plants. Possible procedures to realize the proposed energy-water-environment nexus were also suggested. The strategy proposed in this study adds new value to the waste produced in energy production and will create renewed interest considering its potential use towards environmental treatment. SN - 0306-2619 UR - https://www.unboundmedicine.com/medline/citation/32581421/Demonstration_of_a_feasible_energy-water-environment_nexus:_waste_sulfur_dioxide_for_water_treatment DB - PRIME DP - Unbound Medicine ER -
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