Effects of a Novel Sprayer for P-dichlorobenzene Removal Using the Biotrickling Filter

Abstract

Two biotrickling filters (BTF1, BTF2) with a traditional sprayer and a novel rotary sprayer respectively were used to study on p-dichlorobenzene removal. In starting up stage, the microorganism concentration of BTF1 and BTF2 increased quickly in 16 d ~21 d and 19 d ~23 d respectively, and p-dichlorobenzene removal efficiency (RE) increased from 40% to 80% and 86% respectively when inlet concentrations increased from 200 mg/m3 to 1000 mg/m3. In same time, both of BTF1 and BTF2 had a lower pressure drop (less than 31Pa). In the steady-state stage, the RE was detected with the increasing of inlet concentrations from 50 mg/m3 to 2000 mg/m3 at the various EBRT (20 s, 40 s, 60 s, 80 s). The RE decreased to 55.49% for BTF1 and 61.15% for BTF2 from 100% at the EBRT of 60 s.