(EP876302-A1)      Separator which removes and breaks down fats and oils from waste water, has a process chamber (9) which:    (a) contains a carrier material charged with microorganisms which break down the fats and oils;    (b) has a programme controlled feed system to supply feedstock to the chamber (9) at above the surface level from a separate collector tank, and    (c) has an overflow pipe (14) which draws from the bottom (13) of the chamber (9) and dictates the fluid level in the chamber (9).    The chamber (9) is located within a two part (7, 8) tank (1) which separates oils and fats from the inlet stream. The chamber (9) has an electrically driven rotating drum (20) which contains the microorganisms. The drum drive shaft has a scoop system (26, 27) which lifts fats and oils from the surface in the collector tank (8) and delivers them into the chamber (9).    USE -   The process is used to separate and dispose of oils and fats from waste water (claimed) from, e.g. catering kitchens, hotels and abattoirs.    ADVANTAGE -   The temperature, pH value and ammonium and nutrient contents in the chamber (9), are kept within close limits to optimise the rate of biological activity. Almost no detergent comes into contact with the microorganisms. The process causes no danger to the environment and is not hazardous to human health. Has no harmful effect on subsequent water purification processes.    (US6059963-A)      Separator which removes and breaks down fats and oils from waste water, has a process chamber (9) which:    (a) contains a carrier material charged with microorganisms which break down the fats and oils;    (b) has a programme controlled feed system to supply feedstock to the chamber (9) at above the surface level from a separate collector tank, and    (c) has an overflow pipe (14) which draws from the bottom (13) of the chamber (9) and dictates the fluid level in the chamber (9).    The chamber (9) is located within a two part (7, 8) tank (1) which separates oils and fats from the inlet stream. The chamber (9) has an electrically driven rotating drum (20) which contains the microorganisms. The drum drive shaft has a scoop system (26, 27) which lifts fats and oils from the surface in the collector tank (8) and delivers them into the chamber (9).    USE -   The process is used to separate and dispose of oils and fats from waste water (claimed) from, e.g. catering kitchens, hotels and abattoirs.    ADVANTAGE -   The temperature, pH value and ammonium and nutrient contents in the chamber (9), are kept within close limits to optimise the rate of biological activity. Almost no detergent comes into contact with the microorganisms. The process causes no danger to the environment and is not hazardous to human health. Has no harmful effect on subsequent water purification processes.    (EP876302-B1)      Separator which removes and breaks down fats and oils from waste water, has a process chamber (9) which:    (a) contains a carrier material charged with microorganisms which break down the fats and oils;    (b) has a programme controlled feed system to supply feedstock to the chamber (9) at above the surface level from a separate collector tank, and    (c) has an overflow pipe (14) which draws from the bottom (13) of the chamber (9) and dictates the fluid level in the chamber (9).    The chamber (9) is located within a two part (7, 8) tank (1) which separates oils and fats from the inlet stream. The chamber (9) has an electrically driven rotating drum (20) which contains the microorganisms. The drum drive shaft has a scoop system (26, 27) which lifts fats and oils from the surface in the collector tank (8) and delivers them into the chamber (9).    USE -   The process is used to separate and dispose of oils and fats from waste water (claimed) from, e.g. catering kitchens, hotels and abattoirs.    ADVANTAGE -   The temperature, pH value and ammonium and nutrient contents in the chamber (9), are kept within close limits to optimise the rate of biological activity. Almost no detergent comes into contact with the microorganisms. The process causes no danger to the environment and is not hazardous to human health. Has no harmful effect on subsequent water purification processes.