Studies on Deodorization by Activated Sludge (II)
The Removal of malodorous Amine-Containing Gases
1980 Volume 15 Issue 2 Pages 56-63
Details
1980 Volume 15 Issue 2 Pages 56-63
Removal efficiency of amine-containing gas by activated sludge was investigated. The removal rates of trimethylamine (TMA) and monoethylamine (EA) owed to the acclimated state of activated sludge, respectively. TMA and EA were hardly degradated within one day by unacclimated sludge. Afterwards, the sludge gradually gained biodegrability of amines. The uptake rate of TMA by the sludge at the 1st, 2nd and 3rd day was 4.3, 9.7 and 34.7 mg/g-MLSS/day, respectively. After acclimation, this process for deodorizing was maintained high removal rate of about 99%. Maximum uptake rates of TMA and EA by acclimated sludge were about 168 and 192 mg/g-MLSS/day, respectively. In this method, ammonia was produced from TMA and EA.
This method was available for the drier exhaust gas of a fish meal plant. Removal rates of TMA and ammonia in the drier gas were about 99.9% and 97.5-99.5%, respectively.
