NOVELTY - The system comprises a reactor (11) comprising: a feedstock reservoir (12) having a reservoir entry and a reservoir exit for matter; a thermochemical reaction chamber (18); a feeder (33); and a separation chamber, a controller operatively coupled to the thermochemical reaction chamber and to the separation chamber for controlling temperature of the thermochemical reaction chamber and/or the separation chamber, a vacuum source such as a pump for maintaining a light vacuum, at a pressure of 500 mm Hg, within the reactor, and a vapor processing unit.    USE - The system is useful for thermochemical treatment of matter containing organic compounds for the production of biochar, bio-oil and non-condensed fraction of separated vapor, where the matter is a biomass such as: animal droppings consisting of cow dung, pig manure, horse manure, poultry manure and sheep manure (all claimed); food processing industry biomass including food waste and beer brewing waste; forest and wood products industry biomass including forest, wood construction and peat waste; municipal treatment plant waste including sewage sludge and solid waste; energy products industry biomass including microalgae biofuel production waste, cellulosic methanol production waste and bio-digestion wastes; and other matters containing organic compounds such as waste plastics.    ADVANTAGE - The system ensures energy-efficient and economic thermochemical treatment of the matter containing organic compounds without any undesirable waste and risks associated with pathogens thus rapidly producing biochar with improved physicochemical properties.    DETAILED DESCRIPTION - The system comprises a reactor (11) comprising: a feedstock reservoir (12) having a reservoir entry and a reservoir exit for matter; a thermochemical reaction chamber (18); a feeder (33); and a separation chamber, a controller operatively coupled to the thermochemical reaction chamber and to the separation chamber for controlling temperature of the thermochemical reaction chamber and/or the separation chamber, a vacuum source such as a pump for maintaining a light vacuum, at a pressure of 500 mm Hg, within the reactor, and a vapor processing unit. The thermochemical reaction chamber has a thermochemical reaction chamber entrance coupled to the reservoir exit, a first heat source (20) for thermal treatment of the matter to produce a solid and a vapor, a thermochemical reaction chamber exit, and a first temperature sensor. The feeder has augers (22) operatively coupled to the feedstock reservoir and the thermochemical reaction chamber exit to drive the matter from the feedstock reservoir through the thermochemical reaction chamber. The separation chamber has a separation chamber entrance coupled to the thermochemical reaction chamber exit, a separation device for separation of the solid from the vapor while maintaining the vapor in a gaseous state, a separation chamber exit for exit of the vapor, and a second temperature sensor. The feedstock reservoir further comprises a funnel for guiding the matter to the reservoir exit. The reservoir entry comprises a sealed door. An INDEPENDENT CLAIM is included for a process for the thermochemical treatment of a matter containing organic compounds.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a thermochemical treatment system.    Reactor (11)    Feedstock reservoir (12)    Thermochemical reaction chamber (18)    First heat source (20)    Auger (22)    Feeder. (33)