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Optimized Pretreatment of Non-Thermal Plasma for Advanced Sewage Oxidation
This study investigates how the non-thermal plasma (NTP) process leads to advanced oxidation of sewage using response surface methodology. For environmentally viable and efficient operation of the NTP process, temperature and contact time were selected as two important independent variables. Their i...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7589952/ https://www.ncbi.nlm.nih.gov/pubmed/33096880 http://dx.doi.org/10.3390/ijerph17207694 |
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author | Kim, Hee-Jun Won, Chan-Hee Kim, Hyun-Woo |
author_facet | Kim, Hee-Jun Won, Chan-Hee Kim, Hyun-Woo |
author_sort | Kim, Hee-Jun |
collection | PubMed |
description | This study investigates how the non-thermal plasma (NTP) process leads to advanced oxidation of sewage using response surface methodology. For environmentally viable and efficient operation of the NTP process, temperature and contact time were selected as two important independent variables. Their impacts on the performance were tested following an experimental design to figure out optimal operating conditions. Based on obtained treatment efficiency, statistically optimized conditions were derived by using an approach adapting the central composite design. Results show that coupling 40 °C of temperature and 4 h of contact time demonstrate optimal performance for total chemical oxygen demand (TCOD, 59%) and total suspended solids (85%), respectively. This implies that NTP may present efficient particulate destruction leading to organic solids dissolution. Statistical analysis reveals that the contact time shows more significant dependency than the temperature on the advanced oxidation of TCOD, possibly due to dissolved organic material. For total nitrogen removal, on the contrary, the optimal efficiency was strongly related to the higher temperature (~68 °C). This work provides an inroad to considering how NTP can optimally contribute to better oxidation of multiple pollutants. |
format | Online Article Text |
id | pubmed-7589952 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-75899522020-10-29 Optimized Pretreatment of Non-Thermal Plasma for Advanced Sewage Oxidation Kim, Hee-Jun Won, Chan-Hee Kim, Hyun-Woo Int J Environ Res Public Health Article This study investigates how the non-thermal plasma (NTP) process leads to advanced oxidation of sewage using response surface methodology. For environmentally viable and efficient operation of the NTP process, temperature and contact time were selected as two important independent variables. Their impacts on the performance were tested following an experimental design to figure out optimal operating conditions. Based on obtained treatment efficiency, statistically optimized conditions were derived by using an approach adapting the central composite design. Results show that coupling 40 °C of temperature and 4 h of contact time demonstrate optimal performance for total chemical oxygen demand (TCOD, 59%) and total suspended solids (85%), respectively. This implies that NTP may present efficient particulate destruction leading to organic solids dissolution. Statistical analysis reveals that the contact time shows more significant dependency than the temperature on the advanced oxidation of TCOD, possibly due to dissolved organic material. For total nitrogen removal, on the contrary, the optimal efficiency was strongly related to the higher temperature (~68 °C). This work provides an inroad to considering how NTP can optimally contribute to better oxidation of multiple pollutants. MDPI 2020-10-21 2020-10 /pmc/articles/PMC7589952/ /pubmed/33096880 http://dx.doi.org/10.3390/ijerph17207694 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Kim, Hee-Jun Won, Chan-Hee Kim, Hyun-Woo Optimized Pretreatment of Non-Thermal Plasma for Advanced Sewage Oxidation |
title | Optimized Pretreatment of Non-Thermal Plasma for Advanced Sewage Oxidation |
title_full | Optimized Pretreatment of Non-Thermal Plasma for Advanced Sewage Oxidation |
title_fullStr | Optimized Pretreatment of Non-Thermal Plasma for Advanced Sewage Oxidation |
title_full_unstemmed | Optimized Pretreatment of Non-Thermal Plasma for Advanced Sewage Oxidation |
title_short | Optimized Pretreatment of Non-Thermal Plasma for Advanced Sewage Oxidation |
title_sort | optimized pretreatment of non-thermal plasma for advanced sewage oxidation |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7589952/ https://www.ncbi.nlm.nih.gov/pubmed/33096880 http://dx.doi.org/10.3390/ijerph17207694 |
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