Abstract
Aiming to recycle food-processing waste into animal feeds, the effect of irradiation on the recovery of suspended solids from blood waste water treated with chitosan and it's disinfection was investigated. The wastewater was coagulated by the addition of chitosan. The coagulation was accelerated by pre-irradiation treatment, and the acceleration was maximum at around 3 Mrad irradiation. In the coagulum from blood wastewater treated with chitosan or in blood powder, the viable counts of total aerobic microorganisms (2.4×106-6.0×107/g) and coliforms (1.8×106-3.3×107/g) were decreased to undetectable levels with doses of 1.5-2.0 Mrad and 0.2-0.5 Mrad, respectively.
