文档介绍：Comparison of the NH3 removal characteristics by
trickle-bed air biofilter packed with four anic
packing materials
Jiao Zhang
College of Resources and Environment
Qingdao Agricultural Univercity,QAU
Qingdao 266109, PR China
E-mail: zhangjiao11@
Abstract—Four anic packing materials were In this study, we conducted a parative
evaluated in terms of their availability as a packing study to evaluate the biological NH3 removal
material in trickle-bed air biofilter(TBAB) of biological NH3 characteristics of the same materials under the same
removal characteristics. The nitrification rate is in the order of experimental conditions.
zeolite > active carbon > ceramic pellets > multi-face ball.
The highest nitrification rate for zeolite, polypropylene multi- II. MATERIALS AND METHODS
face ball, ceramic pellets and active carbon were 275, 136, 233
and 261mg/(). Visible biomass growth was obtained within A. TBAB system
15 days for zeolite, pellets and active carbon, and within 20 The experimental system is shown in . The TBAB
days for multi-face balls. During this experiment, the pressure system consists of four identical plastic column reactors of
drops in TBABs with zeolite, ceramic pellets, and active height 1000mm and diameter 80mm. Each reactor was filled
carbon were around 3, and mmH2O, respectively. with 800-mm height