Transformation of dissolved organic matters in landfill leachate-bioelectrochemical system

Guodong Zhang; Yan Jiao; Duu-Jong Lee

doi:10.1016/j.biortech.2015.05.082

Transformation of dissolved organic matters in landfill leachate-bioelectrochemical system

Guodong Zhang
, Yan Jiao
, Duu-Jong Lee^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

37 Citations (Scopus)

Abstract

A membraneless bioelectrochemical system (BES) reactor and an anoxic/oxic (A/O) reactor of identical configurations were applied to treat the landfill leachate (20,100mgl^-1 chemical oxygen demand (COD) and 1330mgl^-1 NH₄⁺-N) at 24-h hydraulic retention time and 3kgchemical oxygen demandm^-3d^-1 volume loading. The BES with maximum power density of 2.77±0.26Wm^-3 and internal resistance of 47.5±1.4Ω removed 84-89% COD and 94-98% NH₄⁺-N, 11% and 47%, respectively, higher than the A/O reactor. The dissolved organic matters (DOM) in effluents from the BES and the A/O reactor were for the first time characterized and compared. The MFC preferentially degraded hydrophilic fraction (HPI) of the fed DOM and yielded excess humin with high aromaticity. The electric fields by bioelectrochemical reactions occurred at cathode stimulate the activities of COD degraders and nitrifiers in biofilms to enhance ammonium removals by BES reactor.

Original language	English
Pages (from-to)	350-354
Journal	Bioresource Technology
Volume	191
DOIs	https://doi.org/10.1016/j.biortech.2015.05.082
Publication status	Published - 1 Sept 2015
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

UN SDGs

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

SDG 7 Affordable and Clean Energy
SDG 12 Responsible Consumption and Production

Research Keywords

Anoxic/oxic
Dissolved organic matter
Fractionation
Landfill leachate
Microbial fuel cell

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10.1016/j.biortech.2015.05.082

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title = "Transformation of dissolved organic matters in landfill leachate-bioelectrochemical system",

abstract = "A membraneless bioelectrochemical system (BES) reactor and an anoxic/oxic (A/O) reactor of identical configurations were applied to treat the landfill leachate (20,100mgl-1 chemical oxygen demand (COD) and 1330mgl-1 NH4+-N) at 24-h hydraulic retention time and 3kgchemical oxygen demandm-3d-1 volume loading. The BES with maximum power density of 2.77±0.26Wm-3 and internal resistance of 47.5±1.4Ω removed 84-89\% COD and 94-98\% NH4+-N, 11\% and 47\%, respectively, higher than the A/O reactor. The dissolved organic matters (DOM) in effluents from the BES and the A/O reactor were for the first time characterized and compared. The MFC preferentially degraded hydrophilic fraction (HPI) of the fed DOM and yielded excess humin with high aromaticity. The electric fields by bioelectrochemical reactions occurred at cathode stimulate the activities of COD degraders and nitrifiers in biofilms to enhance ammonium removals by BES reactor.",

keywords = "Anoxic/oxic, Dissolved organic matter, Fractionation, Landfill leachate, Microbial fuel cell",

author = "Guodong Zhang and Yan Jiao and Duu-Jong Lee",

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TY - JOUR

T1 - Transformation of dissolved organic matters in landfill leachate-bioelectrochemical system

AU - Zhang, Guodong

AU - Jiao, Yan

AU - Lee, Duu-Jong

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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N2 - A membraneless bioelectrochemical system (BES) reactor and an anoxic/oxic (A/O) reactor of identical configurations were applied to treat the landfill leachate (20,100mgl-1 chemical oxygen demand (COD) and 1330mgl-1 NH4+-N) at 24-h hydraulic retention time and 3kgchemical oxygen demandm-3d-1 volume loading. The BES with maximum power density of 2.77±0.26Wm-3 and internal resistance of 47.5±1.4Ω removed 84-89% COD and 94-98% NH4+-N, 11% and 47%, respectively, higher than the A/O reactor. The dissolved organic matters (DOM) in effluents from the BES and the A/O reactor were for the first time characterized and compared. The MFC preferentially degraded hydrophilic fraction (HPI) of the fed DOM and yielded excess humin with high aromaticity. The electric fields by bioelectrochemical reactions occurred at cathode stimulate the activities of COD degraders and nitrifiers in biofilms to enhance ammonium removals by BES reactor.

AB - A membraneless bioelectrochemical system (BES) reactor and an anoxic/oxic (A/O) reactor of identical configurations were applied to treat the landfill leachate (20,100mgl-1 chemical oxygen demand (COD) and 1330mgl-1 NH4+-N) at 24-h hydraulic retention time and 3kgchemical oxygen demandm-3d-1 volume loading. The BES with maximum power density of 2.77±0.26Wm-3 and internal resistance of 47.5±1.4Ω removed 84-89% COD and 94-98% NH4+-N, 11% and 47%, respectively, higher than the A/O reactor. The dissolved organic matters (DOM) in effluents from the BES and the A/O reactor were for the first time characterized and compared. The MFC preferentially degraded hydrophilic fraction (HPI) of the fed DOM and yielded excess humin with high aromaticity. The electric fields by bioelectrochemical reactions occurred at cathode stimulate the activities of COD degraders and nitrifiers in biofilms to enhance ammonium removals by BES reactor.

KW - Anoxic/oxic

KW - Dissolved organic matter

KW - Fractionation

KW - Landfill leachate

KW - Microbial fuel cell

UR - https://www.scopus.com/pages/publications/84937850428

UR - https://www.scopus.com/pages/publications/84937850428#tab=impact

U2 - 10.1016/j.biortech.2015.05.082

DO - 10.1016/j.biortech.2015.05.082

M3 - RGC 21 - Publication in refereed journal

C2 - 26037237

SN - 0960-8524

VL - 191

SP - 350

EP - 354

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Transformation of dissolved organic matters in landfill leachate-bioelectrochemical system

Abstract

Bibliographical note

UN SDGs

Research Keywords

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