New insights into enhanced anaerobic degradation of coal gasification wastewater (CGW) with the assistance of magnetite nanoparticles

Wencheng Ma; Jinxin Li; Dan Zhong; Xiaoli Ge; Kefei Li; Changlei Dai; Yuehua Gao

doi:10.1016/j.chemosphere.2020.127872

New insights into enhanced anaerobic degradation of coal gasification wastewater (CGW) with the assistance of magnetite nanoparticles

Wencheng Ma
, Jinxin Li
, Dan Zhong^*
, Xiaoli Ge
, Kefei Li
, Changlei Dai
, Yuehua Gao

^*Corresponding author for this work

School of Environment

Harbin Institute of Technology
Tianjin Municipal Engineering Design & Research Institute Co., Ltd.
Heilongjiang University
Jilin Zhong Yuan Architectural and Municipal Engineering Design Co., Ltd

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

20 Scopus citations

Abstract

Magnetite nanoparticles (Fe₃O₄ NPs) was firstly used to enhance pollutants removal during coal gasification wastewater (CGW) treatment in anaerobic digestion (AD) system. Bench-scale results revealed that 200 mg/L and 20–40 nm of Fe₃O₄ NPs addition resulted in a maximum removal capacity of total phenol (TPh) at a temperature of 36 °C and hydraulic retention time (HRT) of 36 h. Meanwhile, Fe₃O₄ NPs addition reduced the oxidation reduction potential (ORP) values and biological toxicity, and enhanced the stability of AD system. Pilot-scale results showed that the TPh and chemical oxygen demand (COD) removal efficiency (53% and 49%) were obtained with the optimal dosage of Fe₃O₄ NPs. Moreover, electron nanowires may be established with Fe₃O₄ NPs assisted to perform direct interspecies electron transfer (DIET) among Geobacter, Pseudomonas and Methanosaeta species, and finally enhanced the pollutants removal efficiency.

Original language	English
Article number	127872
Journal	Chemosphere
Volume	262
DOIs	https://doi.org/10.1016/j.chemosphere.2020.127872
State	Published - Jan 2021

UN SDGs

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

SDG 3 Good Health and Well-being

Keywords

Anaerobic digestion
Coal gasification wastewater
Enhancement mechanisms
Magnetite nanoparticles
Microbial community

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10.1016/j.chemosphere.2020.127872

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@article{d170b43a0733404ca11fd54db794a9e4,

title = "New insights into enhanced anaerobic degradation of coal gasification wastewater (CGW) with the assistance of magnetite nanoparticles",

abstract = "Magnetite nanoparticles (Fe3O4 NPs) was firstly used to enhance pollutants removal during coal gasification wastewater (CGW) treatment in anaerobic digestion (AD) system. Bench-scale results revealed that 200 mg/L and 20–40 nm of Fe3O4 NPs addition resulted in a maximum removal capacity of total phenol (TPh) at a temperature of 36 °C and hydraulic retention time (HRT) of 36 h. Meanwhile, Fe3O4 NPs addition reduced the oxidation reduction potential (ORP) values and biological toxicity, and enhanced the stability of AD system. Pilot-scale results showed that the TPh and chemical oxygen demand (COD) removal efficiency (53\% and 49\%) were obtained with the optimal dosage of Fe3O4 NPs. Moreover, electron nanowires may be established with Fe3O4 NPs assisted to perform direct interspecies electron transfer (DIET) among Geobacter, Pseudomonas and Methanosaeta species, and finally enhanced the pollutants removal efficiency.",

keywords = "Anaerobic digestion, Coal gasification wastewater, Enhancement mechanisms, Magnetite nanoparticles, Microbial community",

author = "Wencheng Ma and Jinxin Li and Dan Zhong and Xiaoli Ge and Kefei Li and Changlei Dai and Yuehua Gao",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2021",

month = jan,

doi = "10.1016/j.chemosphere.2020.127872",

language = "英语",

volume = "262",

journal = "Chemosphere",

issn = "0045-6535",

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TY - JOUR

T1 - New insights into enhanced anaerobic degradation of coal gasification wastewater (CGW) with the assistance of magnetite nanoparticles

AU - Ma, Wencheng

AU - Li, Jinxin

AU - Zhong, Dan

AU - Ge, Xiaoli

AU - Li, Kefei

AU - Dai, Changlei

AU - Gao, Yuehua

PY - 2021/1

Y1 - 2021/1

N2 - Magnetite nanoparticles (Fe3O4 NPs) was firstly used to enhance pollutants removal during coal gasification wastewater (CGW) treatment in anaerobic digestion (AD) system. Bench-scale results revealed that 200 mg/L and 20–40 nm of Fe3O4 NPs addition resulted in a maximum removal capacity of total phenol (TPh) at a temperature of 36 °C and hydraulic retention time (HRT) of 36 h. Meanwhile, Fe3O4 NPs addition reduced the oxidation reduction potential (ORP) values and biological toxicity, and enhanced the stability of AD system. Pilot-scale results showed that the TPh and chemical oxygen demand (COD) removal efficiency (53% and 49%) were obtained with the optimal dosage of Fe3O4 NPs. Moreover, electron nanowires may be established with Fe3O4 NPs assisted to perform direct interspecies electron transfer (DIET) among Geobacter, Pseudomonas and Methanosaeta species, and finally enhanced the pollutants removal efficiency.

AB - Magnetite nanoparticles (Fe3O4 NPs) was firstly used to enhance pollutants removal during coal gasification wastewater (CGW) treatment in anaerobic digestion (AD) system. Bench-scale results revealed that 200 mg/L and 20–40 nm of Fe3O4 NPs addition resulted in a maximum removal capacity of total phenol (TPh) at a temperature of 36 °C and hydraulic retention time (HRT) of 36 h. Meanwhile, Fe3O4 NPs addition reduced the oxidation reduction potential (ORP) values and biological toxicity, and enhanced the stability of AD system. Pilot-scale results showed that the TPh and chemical oxygen demand (COD) removal efficiency (53% and 49%) were obtained with the optimal dosage of Fe3O4 NPs. Moreover, electron nanowires may be established with Fe3O4 NPs assisted to perform direct interspecies electron transfer (DIET) among Geobacter, Pseudomonas and Methanosaeta species, and finally enhanced the pollutants removal efficiency.

KW - Anaerobic digestion

KW - Coal gasification wastewater

KW - Enhancement mechanisms

KW - Magnetite nanoparticles

KW - Microbial community

UR - https://www.scopus.com/pages/publications/85089209664

U2 - 10.1016/j.chemosphere.2020.127872

DO - 10.1016/j.chemosphere.2020.127872

M3 - 文章

C2 - 32791370

AN - SCOPUS:85089209664

SN - 0045-6535

VL - 262

JO - Chemosphere

JF - Chemosphere

M1 - 127872

ER -

New insights into enhanced anaerobic degradation of coal gasification wastewater (CGW) with the assistance of magnetite nanoparticles

Abstract

UN SDGs

Keywords

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