(DE19842005-A1)   NOVELTY - A biological process and assembly treat a quantity of effluent wastes from which a defined quantity is taken. The separated quantity is then exposed to energy radiation, the exact intensity of which depends upon the nature of the cells under treatment. The degree of activation is directly related to the amplitude of the ultrasonic energy, and is adjustable. The separated quantity is then returned to and mixed with the original batch from which it was removed, where it activates metabolism of the full batch.    USE - Process and assembly to accelerate the biological treatment of waste water.    ADVANTAGE - The process accelerates both aerobic and anaerobic break-down processes, increases the quantity of organic matter break-down and the biogas yield in anaerobic processes by at least 20 per cent. It further reduces: the quantity of residual solids by at least 13 per cent; the quantity of sludge requiring de-watering and de-watering additives; the quantity of solids for final disposal; and the energy required for cell rupture.    (DE19842005-C2)   NOVELTY - A biological process and assembly treat a quantity of effluent wastes from which a defined quantity is taken. The separated quantity is then exposed to energy radiation, the exact intensity of which depends upon the nature of the cells under treatment. The degree of activation is directly related to the amplitude of the ultrasonic energy, and is adjustable. The separated quantity is then returned to and mixed with the original batch from which it was removed, where it activates metabolism of the full batch.    USE - Process and assembly to accelerate the biological treatment of waste water.    ADVANTAGE - The process accelerates both aerobic and anaerobic break-down processes, increases the quantity of organic matter break-down and the biogas yield in anaerobic processes by at least 20 per cent. It further reduces: the quantity of residual solids by at least 13 per cent; the quantity of sludge requiring de-watering and de-watering additives; the quantity of solids for final disposal; and the energy required for cell rupture.