The Start-Up of A/O Biofilm Process with Silicon-Based Zeolite Filter Material

Abstract

The paper studies the start-up of A/O bio-filter and seeks the reasonable index for the judgment of the start-up, providing the theory basis for the start-up of A/O bio-filter with silicon-based zeolite filter material. The study makes use of the natural start-up compound with inoculum start-up. The experiment analyzed the biofilm in the start-up of A /O bio-filter with silicon-based zeolite Filter Material by measuring the changes of ammonia, COD and biological phase adhering to silicon-based zeolite surface. Compared with the hypoxia microorganisms, aerobic microbial easy to culture. The start-up time of aerobic column is about 27 days, and the start-up time of anaerobic column is about 43 days.