NOVELTY - Biochamber comprises chamber unit defining receiving chamber (33) and aeration chamber (34), and aeration chamber underlying receiving chamber and being divided by partition (19), where the partition has several holes, removable cover covering the chamber unit, the removable cover is adapted to cover the chamber unit, part of the chamber unit or be completely removable from the chamber unit, at least one oxygen probe is positioned inside the receiving chamber, and at least one temperature probe (36) is positioned inside the receiving chamber, and at least one air blower (20).    USE - The biochamber is useful for producing organic fertilizer (claimed).    ADVANTAGE - The biochamber reduces odor, is cost effective, automated, mobile, scalable, or flexible, and does not require lot of maintenance or big space.    DETAILED DESCRIPTION - Biochamber comprises (a) chamber unit defining receiving chamber and aeration chamber, where the aeration chamber has underlying receiving chamber and being divided by partition, and the partition has several holes, (b) removable cover covering the chamber unit, where the removable cover is adapted to cover the chamber unit, part of the chamber unit or be completely removable from the chamber unit, and (c) at least one oxygen probe positioned inside the receiving chamber, at least one temperature probe positioned inside the receiving chamber, and at least one air blower connected to the aeration chamber and operable to blow air. INDEPENDENT CLAIMS are included for the following:    (1) method of making organic fertilizer from poultry manure mixed with a carbon carrier, involves mixing the poultry manure with the carbon carrier, loading the poultry manure and the carbon carrier into the receiving chamber of the bio-chamber, monitoring temperature of the mixture and an oxygen concentration of the mixture, uniformly aerating all layers of the mixture with the at least one air blower, and regulating the temperature of the mixture and the oxygen concentration of the mixture by adjusting the operation of the at least one air blower to provide conditions that permit aerobic bacteria to propagate and biodegrade the mixture; and    (2) production line for producing organic fertilizer using the above-mentioned method, comprising manure crusher, mixer having a weighing scale, biochamber, packing and packaging machine, and several belt conveyors.    DESCRIPTION OF DRAWING(S) - The drawing shows detailed sideview of biochamber.    Partition (19)    Air blower (20)    Receiving chamber (33)    Aeration chamber (34)    Temperature probe (36)