Valorization of methane from environmental engineering applications: A critical review

被引：22

作者：

Jawaharraj, Kalimuthu ^{[1
,2
]}

Shrestha, Namita ^{[3
]}

Chilkoor, Govinda ^{[1
,5
]}

Dhiman, Saurabh Sudha ^{[2
,4
]}

Islam, Jamil ^{[1
,2
]}

Gadhamshetty, Venkataramana ^{[1
,2
,5
]}

机构：

[1] South Dakota Mines, Civil & Environm Engn, Rapid City, SD 57701 USA

[2] South Dakota Mines, BuG ReMeDEE consortium, Rapid City, SD 57701 USA

[3] Rose Hulman Inst Technol, Civil & Environm Engn, Terre Haute, IN 47803 USA

[4] South Dakota Sch Mines & Technol, Biol & Chem Engn, Rapid City, SD 57701 USA

[5] South Dakota Sch Mines & Technol, 2 Dimens Mat Biofilm Engn Sci & Technol 2DBEST Ct, Rapid City, SD 57701 USA

来源：

WATER RESEARCH | 2020年 / 187卷 / 187期

基金：

美国国家科学基金会;

关键词：

Bioelectrochemistry; Environmental engineering; Methane; Wastewater; Landfills; Shale gas; WASTE-WATER TREATMENT; ACYL CARRIER PROTEIN; MICROBIAL FUEL-CELLS; IN-SITU TRANSESTERIFICATION; GREENHOUSE-GAS EMISSIONS; BETA-HYDROXYBUTYRATE PHB; SYNTHASE III FABH; FATTY-ACID; BIODIESEL PRODUCTION; ANAEROBIC OXIDATION;

D O I：

10.1016/j.watres.2020.116400

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Wastewater and waste management sectors alone account for 18% of the anthropogenic methane (CH4) emissions. This study presents a critical overview of methanotrophs ("methane oxidizing microorgan-isms") for valorizing typically discarded CH4 from environmental engineering applications, focusing on wastewater treatment plants. Methanotrophs can convert CH4 into valuable bioproducts including chemicals, biodiesel, DC electricity, polymers, and S-layers, all under ambient conditions. As discarded CH4 and its oxidation products can also be used as a carbon source in nitrification and annamox processes. Here we discuss modes of CH4 assimilation by methanotrophs in both natural and engineered systems. We also highlight the technical challenges and technological breakthroughs needed to enable targeted CH4 oxidation in wastewater treatment plants. (c) 2020 Elsevier Ltd. All rights reserved.

引用

页数：18

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