Based on the effects of skim components on ammonium removal as well as the current processing technology

a new process-intensified technology of removing ammonia from skim by air stripping on rotating packed bed was proposed. The experiments were conducted on a wave-thread packed Rotating Packed Bed (RPB) under atmospheric pressure

suggesting that

in terms of order of importance

the ammonium concentration of feed-stock (x

w

)

the average ultra-gravity factor (β)

feed-stock flux (L)

and gas flux (G) had significant impact on ammonium removal rate (η) and the ammonium concentration of products (x

D

). In the experiment

mass-transfer coefficient in gas phase (k

y

a

e

) increases with the increase of β

G/L

and L. The ammonium concentration of products decreases with the increase of β

G/L and the increase of L. The ammonium concentration of products would be as low as 0.10% and the ammonia removal rate would be 63.21% when skim temperature was 25℃

x

w

0.28%

β 133.2

and G/L 15.0 m

3

·L

-1

. Experiment results indicated that the proposed technology for removing ammonium from skim on a rotating packed bed would be a new process-intensified technique c

ompared with traditional aeration process and centrifugal atomization method.