TECHNOLOGY FOCUS - CHEMICAL ENGINEERING - Preferred Plant: In the plant for improving the biodegradability of sources of organic matter, the measuring and control unit are: (a) a flow meter with which the treated material volumes and dosages of reagents are controlled; (b) sensors that give us information about conductivity, pH, temperature, redox, which help us to control system and its operation; (c) a sound level meter-vibrometer for measuring cavitation reactors and their control. The heating unit comprise two heating units: primary heating unit (2) based on the principal exchanger the temperature of the material in process output will be used to preheat the material counter the fresh; and secondary heating unit (6) based on a secondary exchanger in which an additional contribution is made to rise in temperature to above the pasteurization level and promoting the dispersion and grinding of the material by the beaters. The agitators and high-energy cavitation (10) of the reactors include: an agitator (10.1) with high rpm frequency and high friction blades and cavitation; a zone of cavitation (10.2) in which the agitator (10.1) is housed and to which are connected an air inlet (10.5) for cavitation and reagent injection inlet (10.4); an entry (10.3) for injection of air-water coolant agitator shaft (10) and pH control striping. The dispersion cavitation reactor (7) has an inlet (7.1) and dispersants additive soda plant. In the cavitation reactor rupture of membranes (8) there is an input (8.1) for injection of chlorine dioxide. Furthermore, in the sterilization cavitation reactor (9), there is an input (9.1) for injection of ozone and steam. All cavitation reactors (7), (8) and (9) have their inlet valves and their outlet and the reactor (7) include valves (7.2) and (7.3), the reactor (8) with valves (8.2) and (8.3) and the reactor (9) with the valves (9.2) and (9.3). Each reactors (7), (8), (9), also have an inspection door (7.4), (8.4), (9.4) respectively. All cavitation reactors (7), (8) and (9) in addition to being connected in series in a process continuous, have a by-pass (7.5), (8.5) and (9.5) which bypasses the inlet and outlet of each reactor, and presented to its input an inlet valve (7.6) (8.6) and (9.6) respectively. The tank (11) comprises a stirring acidification (11.1) arranged at its bottom, a vent (11.2) and an overflow (11.3), both disposed in the top, a drain (11.4) and an outlet duct (12). EXAMPLE - No suitable example given.