NOVELTY - Specific surface area of sludge biological carbon is improved by crushing waste polystyrene plastic, drying sludge produced by mechanical dewatering, mixing dried sludge and crushed polystyrene plastic waste, heating, melting, uniformly shrinking surface area of sludge particles attached to sludge surface, direct pressure molding, and carbonizing in pyrolysis carbonization system (12) to obtain product with good pore structure and high surface area.    USE - Improvement of specific surface area of sludge biological carbon for fertilizer and water adsorbent used for high-performance activated carbon sludge activation treatment (all claimed).    ADVANTAGE - Process is simple, practical, environment-friendly, low cost, improves adsorption of organic molecules, and has less investment and superior liquid diffusion performance.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for sludge biological carbon surface area improving device comprises conveying device, crushing device (2), buffer hopper (4), quantitative feeding device (5), heat mixing device (9), particle molding device (10), and pyrolysis carbonization system in which waste polystyrene plastic conveyor line comprises 1st conveying device (1) outlet is connected to crushing device inlet, crushing device outlet is connected to 2nd conveying device (3) inlet, 2nd conveying device outlet connected to buffer hopper inlet, and buffer hopper outlet is connected to quantitative feeding device inlet, sludge conveyor line comprises quantitative feeding device outlet is connected to heat mixing inlet, 3rd conveying device (6) outlet connected to drying device (7) inlet, and drying device outlet connected to 4th conveying device (8) inlet, 4th conveying device outlet is connected to heat mixing device inlet, heat mixing device outlet is connected to particle molding device inlet, particle molding device is connected to 5th conveying device (11) inlet, and 5th conveying device outlet is connected to pyrolysis carbonization system inlet.    DESCRIPTION OF DRAWING(S) - The drawing shows a process flow diagram of sludge biological carbon surface area improving device.    1st conveying device (1)    Crushing device (2)    2nd conveying device (3)    Buffer hopper (4)    Quantitative feeding device (5)    3rd conveying device (6)    Drying device (7)    4th conveying device (8)    Heat mixing device (9)    Particle molding device (10)    5th conveying device (11)    Pyrolysis carbonization system (12)