Glossary and abbreviations

The even distribution on land of effluent from animal husbandry, soil improvers, fertilizers, crop-care products and wastewater treatment sludge, etc.

An installation designed to treat and store waste under optimal safety conditions. The European Union recognizes three classes of landfill: stabilized hazardous waste landfills, called class 1; landfills that take in household and similar waste, called class 2; and inert waste, or class 3, landfill sites. In the United States, there are two classes of landfill: Class 1 for non-hazardous solid wastes and Class 2 for hazardous wastes.

The biogas that is produced by landfills is also known as landfill gas.

Stored waste subject to the combined action of rainwater and natural fermentation produces a liquid fraction called "leachate." Rich in organic matter and trace elements, leachate cannot be returned directly to the natural environment and must be carefully collected and treated.

Fatty concentrate produced by the treatment of fatty waste using the Lipoval process. The properties of Lipofit are close to those of heavy fuel, except that is has a much lower sulfur content. Under regulations, it is considered a fuel in its own right, and can be used in facilities classified 2910B (combustion plants).

This separating process is designed for the treatment of liquid fatty waste mainly from restaurant gully traps (80%), but also from food industry and wastewater treatment plant oil extractors. The Lipoval process dynamically separates fatty waste into three phases: a fatty concentrate that can be used as a replacement fuel (Lipofit), solid sediment, and a treated aqueous phase discharged into the sewer.