BIOMASS AND WASTE TERMINOLOGY
Biomass: biogenic matter including
energy crops, agricultural and forestry residues and wastes.
Biofuels: any fuel, gas, liquid or
solid from biomass.
Biodiesel: liquid fuel from a biomass
suitable for use in a diesel engine.
MSW: Municipal Solid Waste, primarily
Commercial and industrial waste:
similar to MSW, but from industrial and commercial undertakings
and may have different calorific values.
RDF: Refuse Derived Fuels, produced
by sorting and drying the combustible fraction from waste.
Organic: based on carbon.
Biogenic: originally formed from
Biodegradable: organic or biogenic
material that will degrade by bacterial or fungal action eg food
waste, paper, wood.
Pyrolysis: in this process, the medium
(eg organic waste) is heated in the absence of air to produce
a mixture of gaseous and liquid fuels and a solid inert residue
Gasification: in this process, organic
wastes are heated in the presence of air or steam to produce fuel-rich
gases. The technology is based on the reforming process to produce
town gas from coal often referred to as producer gas.
Advanced fluidised bed combustion:
fluidised bed is a type of boiler where air is blown through the
bottom of a boiler and through the fuel, so the fuel sits on the
compressed air. It helps it burn efficiently.
Moving grate: type of grate, under
Anaerobic digestion: using bacteria
to break down a substance. Gases are given off and used for fuel.
Mass burn: everything put into a
burner over a boiler.