The invention relates to resourceful treatment on biological
sludge.A commercial treatment method for biological
sludge includes the steps that the biological
sludge is dried, the dried sludge with the
water content being 7-10% is carbonized and generates
biochar, pyroligneous liquor and biological
tar through high-temperature
pyrolysis, and
biochar, pyroligneous liquor and biological
tar are packaged for sale;
methane gas generated in the treatment process is recovered and used for
carbonization treatment on the dried sludge.According to a rotary sludge carbonizing
machine, a handpiece component and a
tail component are fixed to the two ends of a rack, the two ends of a rotary cylinder are inserted into the handpiece component and the
tail component and matched with the handpiece component and the
tail component in a sealed mode, and a supporting and driving mechanism matched with the rotary cylinder is arranged on the rack; a guiding plate is arranged on the front portion of the rotary cylinder, a lifting plate is arranged on the inner wall of the rotary cylinder, and a
combustor is arranged in a heat preservation outer cover below the rotary cylinder.A commercial
treatment system for the biological sludge comprises biological sludge
drying treatment complete equipment and dried sludge carbonizing treatment complete equipment.The harmful biological sludge is turned into wealth, and the commercial treatment method and
system for the biological sludge have high socioeconomic performance and can create huge wealth for enterprises and the society.