Responses of mixed methanotrophic consortia to variable Cu/Fe ratios.

Methane mitigation in landfill top cover soils is mediated by methanotrophs whose optimal methane (CH) oxidation capacity is governed by environmental and complex microbial community interactions. Optimization of CH remediating bio-filters need to take microbial responses into account. Divalent copper (Cu) and iron (Fe) are present in landfills at variable ratios and play a vital role in methane oxidation capacity and growth of methanotrophs.

Response of mixed methanotrophic consortia to different methane to oxygen ratios.

Methane (CH) and oxygen (air) concentrations affect the CH oxidation capacity (MOC) and mixed methanotrophic community structures in compost (fresh) and landfill (age old) top cover soils. A change in the mixed methanotrophic community structure in response has implications for landfill CH bio-filter remediation and possible bio-product outcomes (i.e.

Culture scale-up and immobilisation of a mixed methanotrophic consortium for methane remediation in pilot-scale bio-filters.

Robust methanotrophic consortia for methane (CH) remediation and by-product development are presently not readily available for industrial use. In this study, a mixed methanotrophic consortium (MMC), sequentially enriched from a marine sediment, was assessed for CH removal efficiency and potential biomass-generated by-product development. Suitable packing material for bio-filters to support MMC biofilm establishment and growth was also evaluated.

Influence of nutrients on oxidation of low level methane by mixed methanotrophic consortia.

Low-level methane emissions from coal mine ventilation air (CMV-CH4; i.e., 1 % CH4) can significantly contribute to global climate change, and therefore, treatment is important to reduce impacts.

Effect of CH4/O2 ratio on fatty acid profile and polyhydroxybutyrate content in a heterotrophic-methanotrophic consortium.

Understanding the role of heterotrophic-methanotrophic (H-Meth) communities is important for improvement of methane (CH4) oxidation capacities (MOC) particularly in conjunction with bio-product development in industrial bio-filters. Initially, a H-Meth consortium was established and enriched from marine sediments and characterized by next generation sequencing of the 16s rDNA gene. The enriched consortium was subjected to 10-50% CH4 (i.