Research of pilot experiment of slaughterhouse wastewater treatment with micro bubble process as pre-treatment

摘要

Micro bubble was used as a pre-treatment process in the pilot experiment of treatment of slaughterhouse wastewater by contact oxidation system in the paper. The removal of COD, ammonia, SS and oil by micro bubble process in the treatment of slaughterhouse wastewater was investigated in the pilot experiment. The results showed that the removal efficiency of SS and oil of micro bubble was over 96% and 99% respectively. And in the long run experiment, the average removal efficiency of COD and ammonia was 40% and 37%, the removal amount of COD and ammonia by micro bubble process was 33% and 48% respectively in the removal amount of whole process, so the micro bubble process plays an important role in the pilot system.