Continuous photocatalytic set-up assisted with nano TiO2 plate for tannery wastewater treatment

A novel photocatalytic continuous system has been proposed for the treatment of tannery waste water, which has high levels of environmental pollutants. The purification process was performed by passing wastewater on a titanium dioxide (TiO2)-coated surface, which is continuously activated by irradia...

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Autores principales:	Reza Shahbazi, Mona Zamani Pedram
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	photocatalyst photoreactor tannery wastewater tio2 wastewater Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/c353691effd6448dab977f59292dd1ad
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spelling	oai:doaj.org-article:c353691effd6448dab977f59292dd1ad2021-11-06T11:07:42ZContinuous photocatalytic set-up assisted with nano TiO2 plate for tannery wastewater treatment0273-12231996-973210.2166/wst.2021.164https://doaj.org/article/c353691effd6448dab977f59292dd1ad2021-06-01T00:00:00Zhttp://wst.iwaponline.com/content/83/11/2732https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732A novel photocatalytic continuous system has been proposed for the treatment of tannery waste water, which has high levels of environmental pollutants. The purification process was performed by passing wastewater on a titanium dioxide (TiO2)-coated surface, which is continuously activated by irradiation of ultraviolet light. To improve the yield of the process, ferric chloride (FeCl3) was used as a coagulation agent. The organic and inorganic compounds, as well as the microorganisms in the tannery wastewater media, were degraded through a photocatalytic process. The results revealed that total dissolved solids and total suspended solids contents were significantly decreased from 8,450 and 8,990 mg·L−1 to 4,032 and 4,127 mg·L−1, respectively. Furthermore, the chemical oxygen demand content of the sample was reduced from 370 to 50 mg·L−1 after the addition of 100 mL of FeCl3 and 4 h of treatment. The same results were observed for the elimination of sulfate and chromium ions, which led to a decline in electrical conductivity. This suggests that introducing 100 mL of FeCl3 as the coagulation agent and continuous treatment with photocatalityc set-up could be considered as an effective method for the purification of tannery wastewaters. HIGHLIGHTS Continuous set-up fabricated for tannery wastewater treatment using photocatalytic reactions.; TiO2 photocatalyst activated by UV light for improvement of purification yield.; FeCl3, as coagulation agent, facilitated treatment by removing total dissolved solids.; Toxic ions and microorganisms were eliminated in this method.;Reza ShahbaziMona Zamani PedramIWA Publishingarticlephotocatalystphotoreactortannery wastewatertio2wastewaterEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 11, Pp 2732-2743 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	photocatalyst photoreactor tannery wastewater tio2 wastewater Environmental technology. Sanitary engineering TD1-1066
spellingShingle	photocatalyst photoreactor tannery wastewater tio2 wastewater Environmental technology. Sanitary engineering TD1-1066 Reza Shahbazi Mona Zamani Pedram Continuous photocatalytic set-up assisted with nano TiO2 plate for tannery wastewater treatment
description	A novel photocatalytic continuous system has been proposed for the treatment of tannery waste water, which has high levels of environmental pollutants. The purification process was performed by passing wastewater on a titanium dioxide (TiO2)-coated surface, which is continuously activated by irradiation of ultraviolet light. To improve the yield of the process, ferric chloride (FeCl3) was used as a coagulation agent. The organic and inorganic compounds, as well as the microorganisms in the tannery wastewater media, were degraded through a photocatalytic process. The results revealed that total dissolved solids and total suspended solids contents were significantly decreased from 8,450 and 8,990 mg·L−1 to 4,032 and 4,127 mg·L−1, respectively. Furthermore, the chemical oxygen demand content of the sample was reduced from 370 to 50 mg·L−1 after the addition of 100 mL of FeCl3 and 4 h of treatment. The same results were observed for the elimination of sulfate and chromium ions, which led to a decline in electrical conductivity. This suggests that introducing 100 mL of FeCl3 as the coagulation agent and continuous treatment with photocatalityc set-up could be considered as an effective method for the purification of tannery wastewaters. HIGHLIGHTS Continuous set-up fabricated for tannery wastewater treatment using photocatalytic reactions.; TiO2 photocatalyst activated by UV light for improvement of purification yield.; FeCl3, as coagulation agent, facilitated treatment by removing total dissolved solids.; Toxic ions and microorganisms were eliminated in this method.;
format	article
author	Reza Shahbazi Mona Zamani Pedram
author_facet	Reza Shahbazi Mona Zamani Pedram
author_sort	Reza Shahbazi
title	Continuous photocatalytic set-up assisted with nano TiO2 plate for tannery wastewater treatment
title_short	Continuous photocatalytic set-up assisted with nano TiO2 plate for tannery wastewater treatment
title_full	Continuous photocatalytic set-up assisted with nano TiO2 plate for tannery wastewater treatment
title_fullStr	Continuous photocatalytic set-up assisted with nano TiO2 plate for tannery wastewater treatment
title_full_unstemmed	Continuous photocatalytic set-up assisted with nano TiO2 plate for tannery wastewater treatment
title_sort	continuous photocatalytic set-up assisted with nano tio2 plate for tannery wastewater treatment
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/c353691effd6448dab977f59292dd1ad
work_keys_str_mv	AT rezashahbazi continuousphotocatalyticsetupassistedwithnanotio2platefortannerywastewatertreatment AT monazamanipedram continuousphotocatalyticsetupassistedwithnanotio2platefortannerywastewatertreatment
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Continuous photocatalytic set-up assisted with nano TiO2 plate for tannery wastewater treatment

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