Methanogenic degradation of tetramethylammonium hydroxide by Methanomethylovorans and Methanosarcina

Tai Ho Hu, Liang Ming Whang, Chi Yu Huang

研究成果: Article同行評審

25 引文 斯高帕斯(Scopus)

摘要

This study evaluated the methanogens responsible for methanogenic degradation of tetramethylammonium hydroxide (TMAH) in a continuous flow bioreactor. The enriched methanogens attained an estimated maximum specific TMAH degradation rate and half-saturation constant of 39.5 mg TMAH/gVSS/h and 820 mg/L, following the Monod-type kinetic expression for methanogenic TMAH degradation. Presence of sulfide more than 20 mg/L significantly extended lag period and slowed down specific TMAH degradation rates. The results of terminal restriction fragment length polymorphism (T-RFLP), cloning/sequencing, and quantitative real-time PCR analyses targeting on the methyl coenzyme M reductase alpha subunit (mcrA) genes retrieved from the bioreactor and batch experiments indicated that Methanomethylovorans species were the dominant methanogens responsible for methanogenic degradation of TMAH. The isolated TMAH-degrading methanogen from the bioreactor, however, was identified closely related to Methanosarcina mazei. It is likely that a very low TMAH environment in the bioreactor favored the growth of Methanomethylovorans hollandica, while the much higher TMAH in the isolation growth medium proliferated Methanosarcina mazei.

原文English
頁(從 - 到)180-186
頁數7
期刊Journal of Hazardous Materials
357
DOIs
出版狀態Published - 2018 9月 5

All Science Journal Classification (ASJC) codes

  • 環境工程
  • 環境化學
  • 廢物管理和處置
  • 污染
  • 健康、毒理學和誘變

指紋

深入研究「Methanogenic degradation of tetramethylammonium hydroxide by Methanomethylovorans and Methanosarcina」主題。共同形成了獨特的指紋。

引用此