Abstract:
By means of the test systems of biofilm-packing tower,a test study on enhancing capability for biopurifying NOx(NO as a basis) waste gas was performanced,in which the effects of adding pH buffer,CO2 gas,organic acid,metal ions catalyst and operating the test tower under the aerobic/anaerobic condition,the neutral/acidic condition on the purification capability of NO waste gas were studied.The results showed that by adding NaHCO3 as a pH buffer,a little glacial acetic acid and operating the tower under the aerobic/neutral condition,the capability of the biofilm-packing tower for biopurifying NOcould be enhanced markedly.Under the aerobic/acidic condition,by adding a little metal ions catalyst,the capability for biopurifying NO could be improved obviously as well.