Making good use of methane to remove oxidized contaminants from wastewater
| Autor: | He-Ping Zhao, Chun-Yu Lai, Zhen Wang, Bruce E. Rittmann, Ling Dong Shi, Jianhua Guo, Mengxiong Wu, Tao Liu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Environmental Engineering
0208 environmental biotechnology Electron donor 02 engineering and technology 010501 environmental sciences Wastewater 01 natural sciences Methane chemistry.chemical_compound Bioreactors Nitrate Humans Anaerobiosis Nitrite Waste Management and Disposal 0105 earth and related environmental sciences Water Science and Technology Civil and Structural Engineering chemistry.chemical_classification Ecological Modeling Electron acceptor Bromate Pollution 020801 environmental engineering chemistry Environmental chemistry Biofilms Anaerobic oxidation of methane Denitrification Oxidation-Reduction |
| Zdroj: | Water research. 197 |
| ISSN: | 1879-2448 |
| Popis: | Being an energetic fuel, methane is able to support microbial growth and drive the reduction of various electron acceptors. These acceptors include a broad range of oxidized contaminants (e.g., nitrate, nitrite, perchlorate, bromate, selenate, chromate, antimonate and vanadate) that are ubiquitously detected in water environments and pose threats to human and ecological health. Using methane as electron donor to biologically reduce these contaminants into nontoxic forms is a promising solution to remediate polluted water, considering that methane is a widely available and inexpensive electron donor. The understanding of methane-based biological reduction processes and the responsible microorganisms has grown in the past decade. This review summarizes the fundamentals of metabolic pathways and microorganisms mediating microbial methane oxidation. Experimental demonstrations of methane as an electron donor to remove oxidized contaminants are summarized, compared, and evaluated. Finally, the review identifies opportunities and unsolved questions that deserve future explorations for broadening understanding of methane oxidation and promoting its practical applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect