NOVELTY - Modular compost control unit has housing, power system, several blower assemblies, several oxygen signal receivers, several temperature signal receivers, and controller connected to several control units, where e.g. each of the control unit configured to receive input signals from one of the several oxygen signal receivers and one of the several temperature signal receivers, and to send output signals to one of the several blower assemblies.    USE - As modular compost control unit.    ADVANTAGE - The unit reduces running costs, eliminates odor and bioaerosol containment, and is suitable for large scale operations.    DETAILED DESCRIPTION - Modular compost control unit (10) has housing (12), power system, several blower assemblies (26), several oxygen signal receivers, several temperature signal receivers, and controller (14) connected to several control units (16), where (a) each of the control unit configured to receive input signals from one of the several oxygen signal receivers and one of the several temperature signal receivers, and to send output signals to one of the several blower assemblies, (b) input signals comprise temperature information signals and oxygen information signals from compost heaps, (c) the output signals comprise airflow information, and (d) the airflow information is at least partly determined from the temperature information signals and oxygen information signals. INDEPENDENT CLAIMS are included for the following:    (1) membrane cover compost system comprising several membranes for covering several compost heaps, several temperature sensors for sensing temperature profile within the compost heaps, several oxygen sensors for sensing oxygen concentration within the compost heaps, several aeration systems for providing air to the compost heaps, and the above-mentioned modular compost control unit, where several blowers are in fluid communication with the aeration apparatus, the temperature sensors are in signal communication with the temperature signal receivers, and the oxygen sensors are in signal communication with the oxygen signal receivers; and    (2) method for controlling composting operation, involves providing the modular compost control unit, mechanically preparing compost feed material, laying the mechanically prepared compost feed material in the several heaps on the several aeration systems, inserting temperature sensor and oxygen sensor into each of the heaps, covering each of the heaps with membrane cover, monitoring temperature and oxygen concentration within each of the heap with the several control units, maintaining predetermined temperature and oxygen concentrations within each of the heaps by regulating air flow into the aeration systems with the several control units, uncovering each of the heaps, removing the temperature sensors and oxygen sensors, and laying the decomposed material in another several heaps on several aeration systems, and performing steps (d)-(g) provided in the patent specification, for maturation of composting.    DESCRIPTION OF DRAWING(S) - The drawing shows schematic view of modular compost control unit.    Modular compost control unit (10)    Housing (12)    Controller (14)    Control unit (16)    Blower assembly (26)