Performances study of UV/O3-aMBR recirculation system in treating polluted surface water

Lu Li; Kang Song; C. Visvanathan

doi:10.1016/j.biortech.2018.07.041

Performances study of UV/O₃-aMBR recirculation system in treating polluted surface water

Lu Li
, Kang Song
, C. Visvanathan

Institute of Hydrobiology, Chinese Academy of Sciences
Asian Institute of Technology Thailand

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

This study used UV/O₃-aMBR system for treating polluted surface water with COD_Mn around 10 mg/L, to improve the removal of non-biodegradable components. UV/O₃ was used in the recirculation stream, partially treating the recalcitrant in aMBR permeate to improve its biodegradability, and then send back to aMBR for biodegradation. Removal performance of UV/O₃-aMBR system with recirculation ratio 20, 40, 60 and 80% was tested and compared. The removal of COD_Mn, UV₂₅₄ and NH₃-N increased with the increment of recirculation ratio. UV/O₃-aMBR system has higher recalcitrant removal performance and less membrane fouling. The fluorescent dissolved organic matter (FDOM) was largely reduced in UV/O₃-aMBR system, and the system hydrophilicity was higher than aMBR system. The Modified Stover Kincanoon model was able to describe UV/O₃-aMBR system; and has higher Umax than aMBR system. UV/O₃-aMBR can be develop as an effective technology in improving recalcitrant removal in polluted surface water treatment.

Original language	English
Pages (from-to)	797-801
Number of pages	5
Journal	Bioresource Technology
Volume	267
DOIs	https://doi.org/10.1016/j.biortech.2018.07.041
Publication status	Published - Nov 2018
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation

Keywords

Attached growth membrane bioreactor (aMBR)
Fluorescent dissolved organic matter (FDOM)
Polluted surface water
Recalcitrant
Recirculation stream
UV/O

Access to Document

10.1016/j.biortech.2018.07.041

Cite this

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title = "Performances study of UV/O3-aMBR recirculation system in treating polluted surface water",

abstract = "This study used UV/O3-aMBR system for treating polluted surface water with CODMn around 10 mg/L, to improve the removal of non-biodegradable components. UV/O3 was used in the recirculation stream, partially treating the recalcitrant in aMBR permeate to improve its biodegradability, and then send back to aMBR for biodegradation. Removal performance of UV/O3-aMBR system with recirculation ratio 20, 40, 60 and 80\% was tested and compared. The removal of CODMn, UV254 and NH3-N increased with the increment of recirculation ratio. UV/O3-aMBR system has higher recalcitrant removal performance and less membrane fouling. The fluorescent dissolved organic matter (FDOM) was largely reduced in UV/O3-aMBR system, and the system hydrophilicity was higher than aMBR system. The Modified Stover Kincanoon model was able to describe UV/O3-aMBR system; and has higher Umax than aMBR system. UV/O3-aMBR can be develop as an effective technology in improving recalcitrant removal in polluted surface water treatment.",

keywords = "Attached growth membrane bioreactor (aMBR), Fluorescent dissolved organic matter (FDOM), Polluted surface water, Recalcitrant, Recirculation stream, UV/O",

author = "Lu Li and Kang Song and C. Visvanathan",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = nov,

doi = "10.1016/j.biortech.2018.07.041",

language = "English",

volume = "267",

pages = "797--801",

journal = "Bioresource Technology",

issn = "0960-8524",

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AU - Li, Lu

AU - Song, Kang

AU - Visvanathan, C.

PY - 2018/11

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N2 - This study used UV/O3-aMBR system for treating polluted surface water with CODMn around 10 mg/L, to improve the removal of non-biodegradable components. UV/O3 was used in the recirculation stream, partially treating the recalcitrant in aMBR permeate to improve its biodegradability, and then send back to aMBR for biodegradation. Removal performance of UV/O3-aMBR system with recirculation ratio 20, 40, 60 and 80% was tested and compared. The removal of CODMn, UV254 and NH3-N increased with the increment of recirculation ratio. UV/O3-aMBR system has higher recalcitrant removal performance and less membrane fouling. The fluorescent dissolved organic matter (FDOM) was largely reduced in UV/O3-aMBR system, and the system hydrophilicity was higher than aMBR system. The Modified Stover Kincanoon model was able to describe UV/O3-aMBR system; and has higher Umax than aMBR system. UV/O3-aMBR can be develop as an effective technology in improving recalcitrant removal in polluted surface water treatment.

AB - This study used UV/O3-aMBR system for treating polluted surface water with CODMn around 10 mg/L, to improve the removal of non-biodegradable components. UV/O3 was used in the recirculation stream, partially treating the recalcitrant in aMBR permeate to improve its biodegradability, and then send back to aMBR for biodegradation. Removal performance of UV/O3-aMBR system with recirculation ratio 20, 40, 60 and 80% was tested and compared. The removal of CODMn, UV254 and NH3-N increased with the increment of recirculation ratio. UV/O3-aMBR system has higher recalcitrant removal performance and less membrane fouling. The fluorescent dissolved organic matter (FDOM) was largely reduced in UV/O3-aMBR system, and the system hydrophilicity was higher than aMBR system. The Modified Stover Kincanoon model was able to describe UV/O3-aMBR system; and has higher Umax than aMBR system. UV/O3-aMBR can be develop as an effective technology in improving recalcitrant removal in polluted surface water treatment.

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KW - Polluted surface water

KW - Recalcitrant

KW - Recirculation stream

KW - UV/O

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