Glossary

Helpful Information

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D

Digestate

is the material remaining after the anaerobic digestion of a biodegradable feedstock. 

Dirty Material Recovery Facility (MFR)

a specialized facility that receives a mixed solid waste stream and then proceeds to separate out designated recyclable material through a combination of manual and mechanical sorting.

Diversion

Diverting material that can be composted, recycled or reused from a landfill.

Diversion rate

the proportion of waste material diverted for recycling, composting, or reuse and away from landfilling.

Dry Anaerobic Digestion

The material processed during dry AD is normally around 25 – 30% DM and has the consistency of thick porridge. In constant flow digesters this must always be mechanically stirred, not only to prevent settling and unequal pocketing, but also to assist the flow of the material through the reactor.

Dry digesters are ideally suited to high DM feedstock such as energy crops, garden wastes and mechanically recovered municipal wastes in MBT plants.

is stackable feedstock with a TS content higher than 30% is utilized in an AD plant without the addition of external liquid.

E

Environmental Sustainability

Managing waste, energy and resources in a responsible way for the environment.

EPA (Environmental Protection Agency)

an agency within government that protects human health and the environment, by enforcing regulations passed by Congress.

G

Grants

money given by an organization, especially a government, for a particular purpose that doesn’t need to be paid back

Greenhouse Gas

any of various gaseous compounds (such as carbon dioxide) that absorb infrared radiation, trap heat in the atmosphere and contribute to greenhouse effect.

I

In-Vessel Composting

composting in an enclosed vessel or drum with a controlled internal environment, mechanical mixing, and aeration.

Industrial composting

is the process of taking organics from commercial generators and turning it into compost. Industrial composting can take meat, dairy, compostable plastics and bones unlike smaller composting operations such as backyard composting.

M

Mandate

the authority for government to carry out a policy, ordinance or regulation, a command to do something

Material Recovery Facility (MFR)

a specialized facility that receives, separates and prepares recyclable materials for marketing to end-user manufacturers

N

Nutrient Rich Soil

Soil that is rich in nutrients that support plant nutrition.

O

Organic Diversion

Reduce the amount of waste going to a landfill, reduce costs and minimize footprint on the environment

Organic Material

is matter composted of organic compounds that has come from the remains of organisms such as plants and animals and their waste products in the environment.

P

Process Engineered Feedstock (PEF)

The recovery of organic and non-recycled paper waste fraction of the municipal solid waste stream using advanced material recycling technology.

Puncture

to make a small hole, the act of puncturing or perforating

R

Recycle

to recover materials from the waste stream which are then converted into a reusable material, to use again

Reduce

to bring down to a smaller size, amount or number