NOVELTY - Biocomplex includes a cattle-breeding complex 1, pyrolyze furnace 4 with the branch pipes for removal of semicoke 5, unpurified pyrolyze gas 6, redundant heat 7 and smoke gases 8, furnace fuel preparation unit 12, microseaweed cultivation unit , grain production complex 34, fertilizings production complex, pyrolyze gas cleaning unit 9 with branch pipes for removal of pyrolyze distillate 10 and purified pyrolyze gas 11, complex of deep grain treatment 37, gas-holder 16, co-generation unit 18, carbon dioxide production unit 22. The cattle-breeding complex 1 is connected with the organic wastes storage 2. The furnace fuel preparation unit 12 is equipped with branch pipes 13-15 for delivery of furnace fuel into the raw preparation unit 3, to pyrolyze furnace 4 and to consumers. Co-generation unit 18 is equipped with the system of smoke gas removal into the carbon dioxide production unit 22 and is connected by heat and electricity lines with all biocomplex facilities. The microseaweed cultivation unit consists of the cultural liquid unit 26 and photoreactor 27, microseaweed treatment unit 29, connected with the fodder preparation shop 39. The grain production complex 34 is connected with the fertilizing production complex by the fertilizing supply conveyor, with the fodder preparation device and organic wastes storage respectively by grain and straw transportation lines, and also by grain transportation lines 36 with the deep grain treatment complex 37, comprising the microbiologic shop 38, and connected by pipelines of grain treatment products supply to the fodder preparation device. The carbon dioxide production unit 22 consists of absorber 23 and desorber 24, with the branch pipe for removal of carbon dioxide 25 into the microseaweed cultivation unit. The carbon dioxide liquefaction unit 28 is connected by a branch pipe for removal of liquefied carbonic acid into the microseaweed treatment unit 29. The fertilizing production complex 30 includes branch pipes for supply of semicoke 31 and microseaweed 32, and branch pipes for output of fertilizings 33.    USE - Agriculture.    ADVANTAGE - Improvement of overall performance of the complex, minimizing of environment pollution, avoidance of formation of cancerogenic and polluting substances.3 cl, 1 dwg