Host: The Society of Chemical Engineers, Japan
A lot of flocculants is widely used in the wastewater treatment process where the activated sludge was used. However, the influence of these flocculants on the expression of functional activity of the microorganism in the activated sludge is hardly examined. Then, in this study how poly iron influenced the nitrogen processing of ammonia-oxidizing bacteria (AOB) in the activated sludge was investigated by using water-quality test and the molecular biology technique (Real time PCR and T-RFLP). In the batchwise nitrification-denitrification process used activated sludge, it turned out that the excessive addition of poly iron into aerating tank was strongly inhabited the expression of amo (mRNA of the ammonia monooxygenase) by analyzed RT-PCR.
