The response of polycyclic aromatic hydrocarbon degradation in coking wastewater treatment after bioaugmentation with biosurfactant-producing bacteria Pseudomonas aeruginosa S5

The polycyclic aromatic hydrocarbons (PAHs) that accumulate during the coking wastewater treatment process are hazardous for the surrounding environment. High molecular weight (HMW) PAHs account for more than 85% of the total PAHs in coking wastewater and sludge, respectively. The degradation of tot...

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Autores principales:	Tingting Zang, Haizhen Wu, Yuxiu Zhang, Chaohai Wei
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	bacteria biosurfactant degradation pahs toxicity wastewater Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/96ea95cfce1a4bf3932f8fa6137ab39d
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spelling	oai:doaj.org-article:96ea95cfce1a4bf3932f8fa6137ab39d2021-11-06T10:50:39ZThe response of polycyclic aromatic hydrocarbon degradation in coking wastewater treatment after bioaugmentation with biosurfactant-producing bacteria Pseudomonas aeruginosa S50273-12231996-973210.2166/wst.2021.046https://doaj.org/article/96ea95cfce1a4bf3932f8fa6137ab39d2021-03-01T00:00:00Zhttp://wst.iwaponline.com/content/83/5/1017https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732The polycyclic aromatic hydrocarbons (PAHs) that accumulate during the coking wastewater treatment process are hazardous for the surrounding environment. High molecular weight (HMW) PAHs account for more than 85% of the total PAHs in coking wastewater and sludge, respectively. The degradation of total PAHs increased by 18.97% due to the increased bioavailability of PAHs, after the biosurfactant-producing bacteria Pseudomonas aeruginosa S5 was added. The toxicity of total PAHs to humans was reduced by 26.66% after inoculation with S5. The results suggest biosurfactant-producing bacteria Pseudomonas aeruginosa S5 not only increase the biodegradation of PAHs significantly, but also have a better effect on reducing the human toxicity of PAHs. Kinetic analyses show that PAHs biodegradation fits to first-order kinetics. The degradation rate constant (k) value decreases as the number of PAH rings increases, indicating that HMW PAHs are more difficult to be biodegraded than low molecular weight (LMW) PAHs. The results indicate the bioaugmentation with the biosurfactant-producing strain has significant potential and utility in remediation of PAHs-polluted sites.Tingting ZangHaizhen WuYuxiu ZhangChaohai WeiIWA PublishingarticlebacteriabiosurfactantdegradationpahstoxicitywastewaterEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 5, Pp 1017-1027 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	bacteria biosurfactant degradation pahs toxicity wastewater Environmental technology. Sanitary engineering TD1-1066
spellingShingle	bacteria biosurfactant degradation pahs toxicity wastewater Environmental technology. Sanitary engineering TD1-1066 Tingting Zang Haizhen Wu Yuxiu Zhang Chaohai Wei The response of polycyclic aromatic hydrocarbon degradation in coking wastewater treatment after bioaugmentation with biosurfactant-producing bacteria Pseudomonas aeruginosa S5
description	The polycyclic aromatic hydrocarbons (PAHs) that accumulate during the coking wastewater treatment process are hazardous for the surrounding environment. High molecular weight (HMW) PAHs account for more than 85% of the total PAHs in coking wastewater and sludge, respectively. The degradation of total PAHs increased by 18.97% due to the increased bioavailability of PAHs, after the biosurfactant-producing bacteria Pseudomonas aeruginosa S5 was added. The toxicity of total PAHs to humans was reduced by 26.66% after inoculation with S5. The results suggest biosurfactant-producing bacteria Pseudomonas aeruginosa S5 not only increase the biodegradation of PAHs significantly, but also have a better effect on reducing the human toxicity of PAHs. Kinetic analyses show that PAHs biodegradation fits to first-order kinetics. The degradation rate constant (k) value decreases as the number of PAH rings increases, indicating that HMW PAHs are more difficult to be biodegraded than low molecular weight (LMW) PAHs. The results indicate the bioaugmentation with the biosurfactant-producing strain has significant potential and utility in remediation of PAHs-polluted sites.
format	article
author	Tingting Zang Haizhen Wu Yuxiu Zhang Chaohai Wei
author_facet	Tingting Zang Haizhen Wu Yuxiu Zhang Chaohai Wei
author_sort	Tingting Zang
title	The response of polycyclic aromatic hydrocarbon degradation in coking wastewater treatment after bioaugmentation with biosurfactant-producing bacteria Pseudomonas aeruginosa S5
title_short	The response of polycyclic aromatic hydrocarbon degradation in coking wastewater treatment after bioaugmentation with biosurfactant-producing bacteria Pseudomonas aeruginosa S5
title_full	The response of polycyclic aromatic hydrocarbon degradation in coking wastewater treatment after bioaugmentation with biosurfactant-producing bacteria Pseudomonas aeruginosa S5
title_fullStr	The response of polycyclic aromatic hydrocarbon degradation in coking wastewater treatment after bioaugmentation with biosurfactant-producing bacteria Pseudomonas aeruginosa S5
title_full_unstemmed	The response of polycyclic aromatic hydrocarbon degradation in coking wastewater treatment after bioaugmentation with biosurfactant-producing bacteria Pseudomonas aeruginosa S5
title_sort	response of polycyclic aromatic hydrocarbon degradation in coking wastewater treatment after bioaugmentation with biosurfactant-producing bacteria pseudomonas aeruginosa s5
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/96ea95cfce1a4bf3932f8fa6137ab39d
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The response of polycyclic aromatic hydrocarbon degradation in coking wastewater treatment after bioaugmentation with biosurfactant-producing bacteria Pseudomonas aeruginosa S5

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