Enteric fermentation is a digestive process by which carbohydrates are broken down by microorganisms into simple molecules for absorption into the bloodstream of an animal.

Enteric fermentation

  • Technology

    Stanford researchers have developed a method for converting ammonia in wastewater into nitrogen gas while simultaneously generating power in a bioreactor system. This method produces energy from carbon and nitrogen waste and provides significant cost and energy savings over current options.

  • Knowledge partner
    Knowledge partner
    Country of registration
    Canada
    Relation to CTCN
    Network Member
    Knowledge Partner
    Sector(s) of expertise
    Agriculture
    Agriculture and forestry
    Renewable energy
    Forestry
    Industry

    Viresco Solutions is a consulting firm based in Calgary, Alberta, Canada.

  • Sectors
    Objective

    Fertiliser and manure management in rice fields are important methane mitigation technologies. The fertiliser management mitigation option includes changes in: fertiliser types; fertiliser nutrient ratios; the rates and timing of applications; and use of nitrification inhibitors to reduce methane emissions by affecting methanogenesis in rice fields. Rice cultivation is responsible for 10% of GHG emissions from agriculture. In developing countries, the share of rice in GHG emissions from agriculture is even higher, e.g., it was 16% in 1994.

  • Sectors
    Objective

    Livestock are important sources of methane. The United States Environmental Protection Agency calculated that livestock, especially ruminants such as cattle and sheep, account for approximately one-third of global anthropogenic emissions of methane (US-EPA, 2006). The methane is produced primarily through the process of enteric fermentation and released through the process of eructation (Crutzen, 1995). In addition, N2O emissions are generated by livestock through secretion of nitrogen through the urine and faeces.

  • Papain production

    Enzymes are proteins that can increase the rate of biological changes, such as the ripening of fruit. Papain enzyme is obtained from the green papaya (pawpaw).

  • Knowledge partner
    Knowledge partner
    Country of registration
    South Africa
    Relation to CTCN
    Network Member
    Knowledge Partner
    Sector(s) of expertise
    Agriculture
    Carbon fixation and abatement
    Renewable energy
    Energy efficiency
    Forestry
    Transport
    Waste management

    The Green House is a sustainability consulting firm with experience working on energy, climate change and sustainability-related projects including climate policy development, strategic energy and climate planning, technology assessment, emissions modelling, and life cycle assessment.

  • Sectors
    Objective

    Emissions of GHGs are affected by the amounts and types of fertilisers applied, so judicious choice of fertiliser application rates and fertiliser types can reduce emissions. Rice cultivation is responsible for 10% of GHG emissions from agriculture. In developing countries, the share of rice in GHG emissions from agriculture is even higher, e.g., it was 16% in 1994.

  • Sectors
    Objective

    Addition of electron acceptors, such as ferrihydrite, to paddy fields can stimulate microbial populations that compete with and slow the activity of methanogens, thereby reducing emissions of methane. Rice cultivation is responsible for 10% of GHG emissions from agriculture. In developing countries, the share of rice in GHG emissions from agriculture is even higher, e.g., it was 16% in 1994.

  • Sectors
    Objective

    The International Rice Research Institute (IRRI) in the Philippines has developed a new mitigation technology for methane known as alternate wetting and drying (AWD) (IRRI, 2009). AWD is a watersaving and methane mitigation technology that lowland (paddy) rice farmers can use to reduce their water consumption in irrigated fields. Rice fields using this technology are alternately flooded and dried. The number of days of drying the soil in AWD can vary according to the type of soil and the cultivar from 1 day to more than 10 days.