Refinery wastewater treatment via a multistage enhanced biochemical process

Abstract Petroleum refinery wastewater (PRWW) that contains recalcitrant components as the major portion of constituents is difficult to treat by conventional biological processes. An effective and economical biological treatment process was established to treat industrial PRWW with an influent COD...

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Autores principales: Chunhua Wang, Zijian Chen, Yuanhua Li, Kejun Feng, Zhongli Peng, Yongjuan Zhu, Xiaofang Yang
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Lenguaje:EN
Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/8d2050ce7afc40d98e57b33cfccdbb00
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spelling oai:doaj.org-article:8d2050ce7afc40d98e57b33cfccdbb002021-12-02T15:54:50ZRefinery wastewater treatment via a multistage enhanced biochemical process10.1038/s41598-021-89665-82045-2322https://doaj.org/article/8d2050ce7afc40d98e57b33cfccdbb002021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89665-8https://doaj.org/toc/2045-2322Abstract Petroleum refinery wastewater (PRWW) that contains recalcitrant components as the major portion of constituents is difficult to treat by conventional biological processes. An effective and economical biological treatment process was established to treat industrial PRWW with an influent COD of over 2500 mg L−1 in this research. This process is mainly composed of internal circulation biological aerated filter (ICBAF), hydrolysis acidfication (HA), two anaerobic–aerobic (A/O) units, a membrane biological reactor (MBR), and ozone-activated carbon (O3-AC) units. The results showed that, overall, this system removed over 94% of the COD, BOD5, ammonia nitrogen (NH4 +-N) and phosphorus in the influent, with the ICBAF unit accounting for 54.6% of COD removal and 83.6% of BOD5 removal, and the two A/O units accounting for 33.3% of COD removal and 9.4% of BOD5 removal. The degradation processes of eight organic pollutants and their removal via treatment were also analyzed. Furthermore, 26 bacteria were identified in this system, with Proteobacteria and Acidobacteria being the most dominant. Ultimately, the treatment process exhibited good performance in degrading complex organic pollutants in the PRWW.Chunhua WangZijian ChenYuanhua LiKejun FengZhongli PengYongjuan ZhuXiaofang YangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Chunhua Wang
Zijian Chen
Yuanhua Li
Kejun Feng
Zhongli Peng
Yongjuan Zhu
Xiaofang Yang
Refinery wastewater treatment via a multistage enhanced biochemical process
description Abstract Petroleum refinery wastewater (PRWW) that contains recalcitrant components as the major portion of constituents is difficult to treat by conventional biological processes. An effective and economical biological treatment process was established to treat industrial PRWW with an influent COD of over 2500 mg L−1 in this research. This process is mainly composed of internal circulation biological aerated filter (ICBAF), hydrolysis acidfication (HA), two anaerobic–aerobic (A/O) units, a membrane biological reactor (MBR), and ozone-activated carbon (O3-AC) units. The results showed that, overall, this system removed over 94% of the COD, BOD5, ammonia nitrogen (NH4 +-N) and phosphorus in the influent, with the ICBAF unit accounting for 54.6% of COD removal and 83.6% of BOD5 removal, and the two A/O units accounting for 33.3% of COD removal and 9.4% of BOD5 removal. The degradation processes of eight organic pollutants and their removal via treatment were also analyzed. Furthermore, 26 bacteria were identified in this system, with Proteobacteria and Acidobacteria being the most dominant. Ultimately, the treatment process exhibited good performance in degrading complex organic pollutants in the PRWW.
format article
author Chunhua Wang
Zijian Chen
Yuanhua Li
Kejun Feng
Zhongli Peng
Yongjuan Zhu
Xiaofang Yang
author_facet Chunhua Wang
Zijian Chen
Yuanhua Li
Kejun Feng
Zhongli Peng
Yongjuan Zhu
Xiaofang Yang
author_sort Chunhua Wang
title Refinery wastewater treatment via a multistage enhanced biochemical process
title_short Refinery wastewater treatment via a multistage enhanced biochemical process
title_full Refinery wastewater treatment via a multistage enhanced biochemical process
title_fullStr Refinery wastewater treatment via a multistage enhanced biochemical process
title_full_unstemmed Refinery wastewater treatment via a multistage enhanced biochemical process
title_sort refinery wastewater treatment via a multistage enhanced biochemical process
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/8d2050ce7afc40d98e57b33cfccdbb00
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AT kejunfeng refinerywastewatertreatmentviaamultistageenhancedbiochemicalprocess
AT zhonglipeng refinerywastewatertreatmentviaamultistageenhancedbiochemicalprocess
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