Parameters optimization for eutrophic lake water treatment by a novel process of iron-carbon micro-electrolysis coupled with catalytic ozonation using response surface methodology

A novel process of iron-carbon micro-electrolysis (ICME) coupled with catalytic ozonation (CO) for treatment of eutrophic lake water was developed. A series of batch experiments with ICME alone and CO alone was designed to investigate the effects of process parameters, such as initial pH, dose of Fe...

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Autores principales:	Shanqing Jiang, Yu Cao, Pei Han, Yanan Zhang, Hankun Zhang, Qiuya Zhang, Xia Xu, Yuanyuan Zhou, Liping Wang
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	catalytic ozone eutrophic lake water iron-carbon micro-electrolysis parameters optimization response surface methodology Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
Acceso en línea:	https://doaj.org/article/7e207675803d475793ccabad15e357c6
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spelling	oai:doaj.org-article:7e207675803d475793ccabad15e357c62021-11-06T07:19:24ZParameters optimization for eutrophic lake water treatment by a novel process of iron-carbon micro-electrolysis coupled with catalytic ozonation using response surface methodology1606-97491607-079810.2166/ws.2021.074https://doaj.org/article/7e207675803d475793ccabad15e357c62021-08-01T00:00:00Zhttp://ws.iwaponline.com/content/21/5/2414https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798A novel process of iron-carbon micro-electrolysis (ICME) coupled with catalytic ozonation (CO) for treatment of eutrophic lake water was developed. A series of batch experiments with ICME alone and CO alone was designed to investigate the effects of process parameters, such as initial pH, dose of Fe-C, time of micro-electrolysis, ozone flux, dose of TiO2/activated carbon (TiO2/AC), and time of ozonation, on the removal rates of total nitrogen (TN), total phosphorus (TP), CODMn and Chl-a. The process parameters were optimized using response surface methodology. The results showed that initial pH, dose of Fe-C and ozone flux had significant effects on removal of TN, TP, CODMn and Chl-a. Within the range of selected operating conditions, the optimized values of initial pH, dose of Fe-C, time of micro-electrolysis, ozone flux, dose of TiO2/AC, and time of ozonation were 3.8, 13.7 g/L, 29.6 min, 3.19 L/min, 294.74 mg/L and 106.73 min, respectively. Furthermore, ICME alone had significant advantages in TP and CODMn removal and CO alone favored TN and Chl-a. Under the optimal process conditions, the final removal rates of TN, TP, CODMn, and Chl-a by the hybrid ICME-CO process reached 75.33%, 86.29%, 94.42% and 97.57%, respectively. The present research provides a new alternative technology with promise for treatment of eutrophic lake water. HIGHLIGHTS A novel coupling ICME-CO process was developed for treatment of eutrophic water.; Six process parameters were optimized using RSM.; Initial pH, dose of Fe-C and ozone flux had significant effects on removal of various pollutants.; The final removal rates for TN, TP, CODMn, and Chl-a by the ICME-CO process reached 75.33%, 86.29%, 94.42% and 97.57%.;Shanqing JiangYu CaoPei HanYanan ZhangHankun ZhangQiuya ZhangXia XuYuanyuan ZhouLiping WangIWA Publishingarticlecatalytic ozoneeutrophic lake wateriron-carbon micro-electrolysisparameters optimizationresponse surface methodologyWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 5, Pp 2414-2424 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	catalytic ozone eutrophic lake water iron-carbon micro-electrolysis parameters optimization response surface methodology Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	catalytic ozone eutrophic lake water iron-carbon micro-electrolysis parameters optimization response surface methodology Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Shanqing Jiang Yu Cao Pei Han Yanan Zhang Hankun Zhang Qiuya Zhang Xia Xu Yuanyuan Zhou Liping Wang Parameters optimization for eutrophic lake water treatment by a novel process of iron-carbon micro-electrolysis coupled with catalytic ozonation using response surface methodology
description	A novel process of iron-carbon micro-electrolysis (ICME) coupled with catalytic ozonation (CO) for treatment of eutrophic lake water was developed. A series of batch experiments with ICME alone and CO alone was designed to investigate the effects of process parameters, such as initial pH, dose of Fe-C, time of micro-electrolysis, ozone flux, dose of TiO2/activated carbon (TiO2/AC), and time of ozonation, on the removal rates of total nitrogen (TN), total phosphorus (TP), CODMn and Chl-a. The process parameters were optimized using response surface methodology. The results showed that initial pH, dose of Fe-C and ozone flux had significant effects on removal of TN, TP, CODMn and Chl-a. Within the range of selected operating conditions, the optimized values of initial pH, dose of Fe-C, time of micro-electrolysis, ozone flux, dose of TiO2/AC, and time of ozonation were 3.8, 13.7 g/L, 29.6 min, 3.19 L/min, 294.74 mg/L and 106.73 min, respectively. Furthermore, ICME alone had significant advantages in TP and CODMn removal and CO alone favored TN and Chl-a. Under the optimal process conditions, the final removal rates of TN, TP, CODMn, and Chl-a by the hybrid ICME-CO process reached 75.33%, 86.29%, 94.42% and 97.57%, respectively. The present research provides a new alternative technology with promise for treatment of eutrophic lake water. HIGHLIGHTS A novel coupling ICME-CO process was developed for treatment of eutrophic water.; Six process parameters were optimized using RSM.; Initial pH, dose of Fe-C and ozone flux had significant effects on removal of various pollutants.; The final removal rates for TN, TP, CODMn, and Chl-a by the ICME-CO process reached 75.33%, 86.29%, 94.42% and 97.57%.;
format	article
author	Shanqing Jiang Yu Cao Pei Han Yanan Zhang Hankun Zhang Qiuya Zhang Xia Xu Yuanyuan Zhou Liping Wang
author_facet	Shanqing Jiang Yu Cao Pei Han Yanan Zhang Hankun Zhang Qiuya Zhang Xia Xu Yuanyuan Zhou Liping Wang
author_sort	Shanqing Jiang
title	Parameters optimization for eutrophic lake water treatment by a novel process of iron-carbon micro-electrolysis coupled with catalytic ozonation using response surface methodology
title_short	Parameters optimization for eutrophic lake water treatment by a novel process of iron-carbon micro-electrolysis coupled with catalytic ozonation using response surface methodology
title_full	Parameters optimization for eutrophic lake water treatment by a novel process of iron-carbon micro-electrolysis coupled with catalytic ozonation using response surface methodology
title_fullStr	Parameters optimization for eutrophic lake water treatment by a novel process of iron-carbon micro-electrolysis coupled with catalytic ozonation using response surface methodology
title_full_unstemmed	Parameters optimization for eutrophic lake water treatment by a novel process of iron-carbon micro-electrolysis coupled with catalytic ozonation using response surface methodology
title_sort	parameters optimization for eutrophic lake water treatment by a novel process of iron-carbon micro-electrolysis coupled with catalytic ozonation using response surface methodology
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/7e207675803d475793ccabad15e357c6
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Parameters optimization for eutrophic lake water treatment by a novel process of iron-carbon micro-electrolysis coupled with catalytic ozonation using response surface methodology

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