Change the original microbial community structure in the hydrolysis acidification tank to enhance the COD removal performance of oily wastewater

The hydrolysis acidification tank mainly relies on microorganisms to treat oily sewage, but in many cases the chemical oxygen demand (COD) of the effluent from the hydrolysis acidification tank does not decrease or even increase. In this work, about 50 L of oily wastewater is treated in a facultativ...

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Autores principales:	Mengshi Zhao, Qiang Fu, Yu Yang, Li Zhang, Si Shan
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	cod hydrolysis acidification oily sewage pseudomonas stutzeri lh-42 Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/436724023c36473da1ab8e0bfd8ec0c5
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id	oai:doaj.org-article:436724023c36473da1ab8e0bfd8ec0c5
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spelling	oai:doaj.org-article:436724023c36473da1ab8e0bfd8ec0c52021-11-06T11:22:26ZChange the original microbial community structure in the hydrolysis acidification tank to enhance the COD removal performance of oily wastewater0273-12231996-973210.2166/wst.2021.348https://doaj.org/article/436724023c36473da1ab8e0bfd8ec0c52021-09-01T00:00:00Zhttp://wst.iwaponline.com/content/84/6/1477https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732The hydrolysis acidification tank mainly relies on microorganisms to treat oily sewage, but in many cases the chemical oxygen demand (COD) of the effluent from the hydrolysis acidification tank does not decrease or even increase. In this work, about 50 L of oily wastewater is treated in a facultative anaerobic hydrolysis acidification tank with a temperature of 29 °C, pH 6, high-throughput sequencing technology analyzes found that after long-term operation of the hydrolysis and acidification tank, the dominant bacterial Pseudomonas accounted for only 2.87%, at this time, the effluent COD of the hydrolysis and acidification tank was 450 mg/L. Pseudomonas stutzeri LH-42 a strain screened in the laboratory, was domesticated and colonized in the hydrolysis acidification tank. High-throughput sequencing and bioinformatics analysis showed that the proportion of Pseudomonas in the hydrolysis acidification tank reached 5.89%, the effluent COD of the hydrolysis and acidification tank was 200 mg/L. The above results indicate the importance of the proportion of Pseudomonas in the hydrolysis and acidification tank for the COD degradation of oily wastewater. HIGHLIGHTS After the bacteria intensification, the COD removal rate of the oily wastewater by the hydrolysis acidification reactor increased by 50%.; The biodegradability of wastewater has also been correspondingly improved.; The microbial community structure in the hydrolysis acidification reactor showed obvious changes.; Provide a practical way to improve the efficiency of hydrolysis and acidification.; The role of Pseudomonas.;Mengshi ZhaoQiang FuYu YangLi ZhangSi ShanIWA Publishingarticlecodhydrolysis acidificationoily sewagepseudomonas stutzeri lh-42Environmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 84, Iss 6, Pp 1477-1486 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cod hydrolysis acidification oily sewage pseudomonas stutzeri lh-42 Environmental technology. Sanitary engineering TD1-1066
spellingShingle	cod hydrolysis acidification oily sewage pseudomonas stutzeri lh-42 Environmental technology. Sanitary engineering TD1-1066 Mengshi Zhao Qiang Fu Yu Yang Li Zhang Si Shan Change the original microbial community structure in the hydrolysis acidification tank to enhance the COD removal performance of oily wastewater
description	The hydrolysis acidification tank mainly relies on microorganisms to treat oily sewage, but in many cases the chemical oxygen demand (COD) of the effluent from the hydrolysis acidification tank does not decrease or even increase. In this work, about 50 L of oily wastewater is treated in a facultative anaerobic hydrolysis acidification tank with a temperature of 29 °C, pH 6, high-throughput sequencing technology analyzes found that after long-term operation of the hydrolysis and acidification tank, the dominant bacterial Pseudomonas accounted for only 2.87%, at this time, the effluent COD of the hydrolysis and acidification tank was 450 mg/L. Pseudomonas stutzeri LH-42 a strain screened in the laboratory, was domesticated and colonized in the hydrolysis acidification tank. High-throughput sequencing and bioinformatics analysis showed that the proportion of Pseudomonas in the hydrolysis acidification tank reached 5.89%, the effluent COD of the hydrolysis and acidification tank was 200 mg/L. The above results indicate the importance of the proportion of Pseudomonas in the hydrolysis and acidification tank for the COD degradation of oily wastewater. HIGHLIGHTS After the bacteria intensification, the COD removal rate of the oily wastewater by the hydrolysis acidification reactor increased by 50%.; The biodegradability of wastewater has also been correspondingly improved.; The microbial community structure in the hydrolysis acidification reactor showed obvious changes.; Provide a practical way to improve the efficiency of hydrolysis and acidification.; The role of Pseudomonas.;
format	article
author	Mengshi Zhao Qiang Fu Yu Yang Li Zhang Si Shan
author_facet	Mengshi Zhao Qiang Fu Yu Yang Li Zhang Si Shan
author_sort	Mengshi Zhao
title	Change the original microbial community structure in the hydrolysis acidification tank to enhance the COD removal performance of oily wastewater
title_short	Change the original microbial community structure in the hydrolysis acidification tank to enhance the COD removal performance of oily wastewater
title_full	Change the original microbial community structure in the hydrolysis acidification tank to enhance the COD removal performance of oily wastewater
title_fullStr	Change the original microbial community structure in the hydrolysis acidification tank to enhance the COD removal performance of oily wastewater
title_full_unstemmed	Change the original microbial community structure in the hydrolysis acidification tank to enhance the COD removal performance of oily wastewater
title_sort	change the original microbial community structure in the hydrolysis acidification tank to enhance the cod removal performance of oily wastewater
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/436724023c36473da1ab8e0bfd8ec0c5
work_keys_str_mv	AT mengshizhao changetheoriginalmicrobialcommunitystructureinthehydrolysisacidificationtanktoenhancethecodremovalperformanceofoilywastewater AT qiangfu changetheoriginalmicrobialcommunitystructureinthehydrolysisacidificationtanktoenhancethecodremovalperformanceofoilywastewater AT yuyang changetheoriginalmicrobialcommunitystructureinthehydrolysisacidificationtanktoenhancethecodremovalperformanceofoilywastewater AT lizhang changetheoriginalmicrobialcommunitystructureinthehydrolysisacidificationtanktoenhancethecodremovalperformanceofoilywastewater AT sishan changetheoriginalmicrobialcommunitystructureinthehydrolysisacidificationtanktoenhancethecodremovalperformanceofoilywastewater
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Change the original microbial community structure in the hydrolysis acidification tank to enhance the COD removal performance of oily wastewater

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