Degradation of cis- and trans-(4-methylcyclohexyl) methanol in activated sludge

Li YUAN; Wei ZHI; Yangsheng LIU; Elizabeth SMILEY; Daniel GALLAGER; Xi CHEN; Andrea M. DIETRICH; Husen ZHANG

doi:10.1016/j.jhazmat.2015.12.016

Degradation of cis- and trans-(4-methylcyclohexyl) methanol in activated sludge

Li YUAN, Wei ZHI, Yangsheng LIU, Elizabeth SMILEY, Daniel GALLAGER, Xi CHEN, Andrea M. DIETRICH, Husen ZHANG^*

^*Corresponding author for this work

Research output: Journal Publications › Journal Article (refereed) › peer-review

5 Citations (Scopus)

Abstract

Crude (4-methylcyclohexyl)methanol (MCHM) caused extensive contamination of drinking water, wastewater, and the environment during the 2014 West Virginia Chemical Spill. However, information related to the environmental degradation of cis- and trans-4-MCHM, the main components of the crude 4-MCHM mixture, remains largely unknown. This study is among the first to investigate the degradation kinetics and transformation of 4-MCHM isomers in activated sludge. The 4-MCHM loss was mainly due to biodegradation to form carbon dioxide (CO₂), plus acetic, propionic, isobutyric, and isovaleric acids with little contribution from adsorption. The biodegradation of 4-MCHM isomers followed the first-order kinetic model with half-lives higher than 0.50 days. Nitrate augmented the degradation of 4-MCHM isomers, while glucose and acetate decreased their degradation. One 4-MCHM-degrading bacterium isolated from activated sludge was identified as Acinetobacter bouvetii strain EU40 based on 16S rRNA gene sequences. This study will enhance the prediction of the environmental fate of 4-MCHM in water treatment systems.

Original language	English
Pages (from-to)	247-256
Number of pages	10
Journal	Journal of Hazardous Materials
Volume	306
DOIs	https://doi.org/10.1016/j.jhazmat.2015.12.016
Publication status	Published - 5 Apr 2016
Externally published	Yes

Bibliographical note

Acknowledgements:
This work was supported by Dr. Zhang’s startup funds provided by Virginia Tech College of Engineering. Li Yuan acknowledges support from the China Scholarship Council (CSC) visiting scholarship. The work of Xi Chen was supported by National Natural Science Foundation of China (11172231 and 11372241), AFOSR (FA9550-12-1-0159), and ARPA-E (DE-AR0000396). The research was performed in conjunction with National Science Foundation, CBET Award # 1424234 in which the headspace and GC–MS methods for 4-MCHM were developed.

Keywords

Activated sludge
Biodegradation kinetics
Crude (4-methylcyclohexyl)methanol
Transformation products
West Virginia Chemical Spill

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10.1016/j.jhazmat.2015.12.016

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title = "Degradation of cis- and trans-(4-methylcyclohexyl) methanol in activated sludge",

abstract = "Crude (4-methylcyclohexyl)methanol (MCHM) caused extensive contamination of drinking water, wastewater, and the environment during the 2014 West Virginia Chemical Spill. However, information related to the environmental degradation of cis- and trans-4-MCHM, the main components of the crude 4-MCHM mixture, remains largely unknown. This study is among the first to investigate the degradation kinetics and transformation of 4-MCHM isomers in activated sludge. The 4-MCHM loss was mainly due to biodegradation to form carbon dioxide (CO2), plus acetic, propionic, isobutyric, and isovaleric acids with little contribution from adsorption. The biodegradation of 4-MCHM isomers followed the first-order kinetic model with half-lives higher than 0.50 days. Nitrate augmented the degradation of 4-MCHM isomers, while glucose and acetate decreased their degradation. One 4-MCHM-degrading bacterium isolated from activated sludge was identified as Acinetobacter bouvetii strain EU40 based on 16S rRNA gene sequences. This study will enhance the prediction of the environmental fate of 4-MCHM in water treatment systems.",

keywords = "Activated sludge, Biodegradation kinetics, Crude (4-methylcyclohexyl)methanol, Transformation products, West Virginia Chemical Spill",

author = "Li YUAN and Wei ZHI and Yangsheng LIU and Elizabeth SMILEY and Daniel GALLAGER and Xi CHEN and DIETRICH, {Andrea M.} and Husen ZHANG",

note = "Acknowledgements: This work was supported by Dr. Zhang{\textquoteright}s startup funds provided by Virginia Tech College of Engineering. Li Yuan acknowledges support from the China Scholarship Council (CSC) visiting scholarship. The work of Xi Chen was supported by National Natural Science Foundation of China (11172231 and 11372241), AFOSR (FA9550-12-1-0159), and ARPA-E (DE-AR0000396). The research was performed in conjunction with National Science Foundation, CBET Award # 1424234 in which the headspace and GC–MS methods for 4-MCHM were developed.",

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doi = "10.1016/j.jhazmat.2015.12.016",

language = "English",

volume = "306",

pages = "247--256",

journal = "Journal of Hazardous Materials",

issn = "0304-3894",

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T1 - Degradation of cis- and trans-(4-methylcyclohexyl) methanol in activated sludge

AU - YUAN, Li

AU - ZHI, Wei

AU - LIU, Yangsheng

AU - SMILEY, Elizabeth

AU - GALLAGER, Daniel

AU - CHEN, Xi

AU - DIETRICH, Andrea M.

AU - ZHANG, Husen

N1 - Acknowledgements: This work was supported by Dr. Zhang’s startup funds provided by Virginia Tech College of Engineering. Li Yuan acknowledges support from the China Scholarship Council (CSC) visiting scholarship. The work of Xi Chen was supported by National Natural Science Foundation of China (11172231 and 11372241), AFOSR (FA9550-12-1-0159), and ARPA-E (DE-AR0000396). The research was performed in conjunction with National Science Foundation, CBET Award # 1424234 in which the headspace and GC–MS methods for 4-MCHM were developed.

PY - 2016/4/5

Y1 - 2016/4/5

N2 - Crude (4-methylcyclohexyl)methanol (MCHM) caused extensive contamination of drinking water, wastewater, and the environment during the 2014 West Virginia Chemical Spill. However, information related to the environmental degradation of cis- and trans-4-MCHM, the main components of the crude 4-MCHM mixture, remains largely unknown. This study is among the first to investigate the degradation kinetics and transformation of 4-MCHM isomers in activated sludge. The 4-MCHM loss was mainly due to biodegradation to form carbon dioxide (CO2), plus acetic, propionic, isobutyric, and isovaleric acids with little contribution from adsorption. The biodegradation of 4-MCHM isomers followed the first-order kinetic model with half-lives higher than 0.50 days. Nitrate augmented the degradation of 4-MCHM isomers, while glucose and acetate decreased their degradation. One 4-MCHM-degrading bacterium isolated from activated sludge was identified as Acinetobacter bouvetii strain EU40 based on 16S rRNA gene sequences. This study will enhance the prediction of the environmental fate of 4-MCHM in water treatment systems.

AB - Crude (4-methylcyclohexyl)methanol (MCHM) caused extensive contamination of drinking water, wastewater, and the environment during the 2014 West Virginia Chemical Spill. However, information related to the environmental degradation of cis- and trans-4-MCHM, the main components of the crude 4-MCHM mixture, remains largely unknown. This study is among the first to investigate the degradation kinetics and transformation of 4-MCHM isomers in activated sludge. The 4-MCHM loss was mainly due to biodegradation to form carbon dioxide (CO2), plus acetic, propionic, isobutyric, and isovaleric acids with little contribution from adsorption. The biodegradation of 4-MCHM isomers followed the first-order kinetic model with half-lives higher than 0.50 days. Nitrate augmented the degradation of 4-MCHM isomers, while glucose and acetate decreased their degradation. One 4-MCHM-degrading bacterium isolated from activated sludge was identified as Acinetobacter bouvetii strain EU40 based on 16S rRNA gene sequences. This study will enhance the prediction of the environmental fate of 4-MCHM in water treatment systems.

KW - Activated sludge

KW - Biodegradation kinetics

KW - Crude (4-methylcyclohexyl)methanol

KW - Transformation products

KW - West Virginia Chemical Spill

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U2 - 10.1016/j.jhazmat.2015.12.016

DO - 10.1016/j.jhazmat.2015.12.016

M3 - Journal Article (refereed)

C2 - 26745518

AN - SCOPUS:84952334048

SN - 0304-3894

VL - 306

SP - 247

EP - 256

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

ER -

Degradation of cis- and trans-(4-methylcyclohexyl) methanol in activated sludge

Abstract

Bibliographical note

Keywords

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