Dietary fats are the complex organic compounds containing long-chain molecules that aren`t metabolized by microorganisms and can`t be absorbed through the cell wall. Interaction of biopreparation with dietary fats results in the intensive synthesis of extracellular lipolytic enzymes by microorganisms of biopreparation. These active enzymes cause liquefaction and destruction (decomposition) of solid grease mass to simple substances that are readily metabolized by the living cells; during that process, water is effectively cleaned from dissolved greases.

The biopreparation is used for low-waste functioning of collecting (stagnant or low-flow) grease traps, utilization of greases in the collection reservoirs, quality improvement of water cleaning from fats, nitrogen, phosphorus in the collecting sewage treatment settings with artificial or natural aeration, collectors, sumps, septic tanks and biological treatment plants.

Wastewaters of food processing industries (milk, cheese, wine factories, confectioneries, meat processing factories, etc) are complete polydisperse systems, main components of which have dietary and biological value: fats, proteins, carbohydrates, fat-like substances, organic acids, vitamins, enzymes, pigments, products of protein decomposition. Such wastewaters are characterized with high levels of COD, BOD, suspended solids, greases and other pollutions. Therefore the discard of such wastewaters in the urban sewerage without pretreatment is not allowed.