Aerobic and anaerobic microbial degradation of crude (4-methylcyclohexyl)methanol in river sediments

The Science of the Total Environment
Li YuanHusen Zhang

Abstract

Cyclohexane and some of its derivatives have been a major concern because of their significant adverse human health effects and widespread occurrence in the environment. The 2014 West Virginia chemical spill has raised public attention to (4-methylcyclohexyl)methanol (4-MCHM), one cyclohexane derivative, which is widely used in coal processing but largely ignored. In particular, the environmental fate of its primary components, cis- and trans-4-MCHM, remains largely unexplored. This study aimed to investigate the degradation kinetics and mineralization of cis- and trans-4-MCHM by sediment microorganisms under aerobic and anaerobic conditions. We found the removal of cis- and trans-4-MCHM was mainly attributed to biodegradation with little contribution from sorption. A nearly complete aerobic degradation of 4-MCHM occurred within 14 days, whereas the anaerobic degradation was reluctant with residual percentages of 62.6% of cis-4-MCHM and 85.0% of trans-4-MCHM after 16-day incubation. The cis-4-MCHM was degraded faster than the trans under both aerobic and anaerobic conditions, indicating an isomer-specific degradation could occur during the 4-MCHM degradation. Nitrate addition enhanced 4-MCHM mineralization by about 50% under bo...Continue Reading

References

Oct 1, 1989·Applied and Environmental Microbiology·G W KohringJ Wiegel
Feb 21, 1998·Bulletin of Environmental Contamination and Toxicology·K E LongK B Woodburn
Jan 30, 1999·Applied and Environmental Microbiology·S M Burland, E A Edwards
Apr 12, 2003·Bioresource Technology·W Suntornsuk, L Suntornsuk
Feb 10, 2004·Applied and Environmental Microbiology·Jürgen MaierGeorg M Gübitz
May 10, 2005·Water Research·Márta VarghaKároly Márialigeti
Jul 1, 1982·Applied and Environmental Microbiology·M C CadmusM E Slodki
Oct 13, 2006·Journal of Environmental Management·Derek L Bryant, Mark D Abkowitz
Feb 14, 2007·Journal of Environmental Sciences (China)·Dan SuXian-zhe Xiong
Oct 31, 2007·Journal of Environmental Sciences (China)·Zhi-Feng HuDong Deng
Feb 13, 2008·Journal of Applied Microbiology·V V DawkarS P Govindwar
Apr 29, 2008·Nucleic Acids Research·Mark JohnsonThomas L Madden
Jun 26, 2008·Journal of Environmental Sciences (China)·Junfeng DouZhifeng Hu
Sep 1, 1988·Environmental Science & Technology·P D CapelO Wanner
Jul 1, 1986·Environmental Science & Technology·S C Wu, P M Gschwend
Oct 10, 2012·Biochimica Et Biophysica Acta·Jianwei Chen, Marc Strous
Sep 18, 2014·Environmental Health Perspectives·John Manuel
Aug 19, 2015·BMC Public Health·Elena SavoiaKasisomayajula Viswanath

❮ Previous
Next ❯

Citations

Sep 10, 2016·The Science of the Total Environment·Danlian HuangWenjing Xue
Sep 1, 2020·Bulletin of Environmental Contamination and Toxicology·Jong-Hwan KimJeong-Han Kim
Sep 26, 2017·Environmental Science & Technology·Isabelle M CozzarelliDouglas B Chambers

❮ Previous
Next ❯

Related Concepts

Related Feeds

Bioremediation (ASM)

Bioremediation is the treatment and removal of harmful pollutants or contaminants through the use of microorganisms. Discover the latest research here.