biodigester
Organic waste processor
A biodigester is a tank or system that breaks down organic waste—manure, food scraps, sewage—through anaerobic decomposition.
Bacteria digest the material in the absence of oxygen, producing biogas (primarily methane) that can be captured for fuel, plus nutrient-rich slurry usable as fertilizer.
Biodigesters range from small household units to industrial-scale facilities processing agricultural or municipal waste.
Unprocessed manufacturing input
- manureAnimal waste as fertilizer
- slurrySemifluid mixture of solids
- organic wasteDecomposable natural refuse
- food scrapsDiscarded edible remnants
sewage · substrate · cow dung · pig manure · green waste
Microbial sugar conversion
- decompositionBreakdown into simpler parts
- methane productionCreating CH4 gas
- energy recoveryRecapturing dissipated power
- waste treatmentPurifying contaminated water
Simplest alkane fuel
- effluentDischarged liquid waste
- biofertilizerMicrobe-containing growth promoter
- slurrySemifluid mixture of solids
- compostDecayed organic fertilizer
liquid fertilizer · carbon dioxide · renewable energy · soil amendment
Self-replenishing natural power
- carbon footprint reductionLessening emissions from activities
- waste-to-energyGenerating power from garbage
- circular economyRegenerative resource management model
- greenhouse gas reductionLowering climate-warming emissions
climate mitigation · zero waste · clean technology · energy independence · eco-friendly · sustainable agriculture · carbon neutrality
Vessel for growing organisms
- inletWater extending into land
- outletPoint of release
- agitatorOne who foments discord
- heating systemEquipment that warms buildings
gas valve · pressure gauge · dome · overflow tank · insulation
Farmer of limited land
- dairy farmLivestock operation for milk
- pig farmSwine breeding operation
feedstock
Unprocessed manufacturing input
- manureAnimal waste as fertilizer
- slurrySemifluid mixture of solids
- organic wasteDecomposable natural refuse
food scraps · sewage · substrate · cow dung · pig manure · green waste
fermentation
Microbial sugar conversion
- decompositionBreakdown into simpler parts
- methane productionCreating CH4 gas
- energy recoveryRecapturing dissipated power
waste treatment · odor control · hydrolysis · thermophilic · batch processing
methane
Simplest alkane fuel
- effluentDischarged liquid waste
- biofertilizerMicrobe-containing growth promoter
- slurrySemifluid mixture of solids
compost · liquid fertilizer · carbon dioxide · renewable energy · soil amendment
renewable energy
Self-replenishing natural power
- carbon footprint reductionLessening emissions from activities
- waste-to-energyGenerating power from garbage
- circular economyRegenerative resource management model
greenhouse gas reduction · climate mitigation · zero waste · clean technology · energy independence · eco-friendly · sustainable agriculture · carbon neutrality
bioreactor
Vessel for growing organisms
heating system · gas valve · pressure gauge · dome · overflow tank · insulation
smallholder
Farmer of limited land
- dairy farmLivestock operation for milk
- pig farmSwine breeding operation
biodigesterlandfill
Waste burial ground
garbage dump · sanitary landfill · incinerator · ocean dumping · trash heap
bio, digest, digester, digestion, digestive, digestible, indigestible, predigest, biology