NOVELTY - A treatment and comprehensive utilization of sludge from sewage treatment comprises material mixing and pulp preparation, enhanced processing with microwave, secondary material mixing, liquid-solid separation, and biological treatment of sludge cake, and filtrate treatment. The biological treatment of sludge cake involves mixing uniformly rice bran (2-10% of sludge cake), coal slug (2-20% of sludge cake) and sludge cake; placing domesticated earthworm into mixed material for 5-30 days under condition of ventilation, and granulating; and drying and packing to obtain biological fertilizer.    USE - Method for treatment and comprehensive utilization of sludge from sewage treatment (claimed) for use as organic fertilizer, and doping material of cement for manufacturing brick.    ADVANTAGE - The method avoids secondary pollution to environment.    DETAILED DESCRIPTION - The treatment and comprehensive utilization of sludge from sewage treatment comprises material mixing and pulp preparation, enhanced processing with microwave, secondary material mixing, liquid-solid separation, and biological treatment of sludge cake, and filtrate treatment. The material mixing and pulp preparation involves feeding sludge to primary material mixing tank through conveyor; and adding industrial sulfuric acid (1-10 mass% of wet sludge) and water (50-100 mass% of wet sludge) to primary material mixing tank; stirring uniformly stirring to obtain sludge pulp. The enhanced processing with microwave involves placing sludge pulp into industrial microwave stove, carrying out microwave irradiation for 10-90 minutes, and discharging sludge pulp into secondary material mixing tank. The secondary material mixing involves adding water after treated sludge pulp is placed into secondary material mixing tank, and stirring for 5-15 minutes; and adding alkaline coal slag or metallurgical waste residue in order to adjust pH value of sludge pulp of greater than or equal to 3.5. The liquid-solid separation involves separating liquid and solid from sludge pulp to obtain sludge cake, where clean liquid is delivered to sewage treatment system. The biological treatment of sludge cake involves mixing uniformly rice bran (2-10% of sludge cake), coal slug (2-20% of sludge cake) and sludge cake; placing domesticated earthworm into mixed material for 5-30 days under condition of ventilation, and granulating; and drying and packing to obtain biological fertilizer. The filtrate treatment involves adding lime cream to filtrate, adjusting pH value to 6.0-6.5, adding metal removal agent SDD (5-15 g/m3); and filtering, where filter residue may be applied to making brick or be used as blending material of cement, and filtrate is recycled.