Study on the Operational Characteristics of Hybrid A2/O Process at Low Temperature
By studying the operational characteristics of hybrid A2/O process, the operation data optimization was identified through the study of how the dosage of carrier and the return ratio affect the process. The results showed that under low temperature, 52.5% dosage ,20% return ratio to the anaerobic tank and 75% return ratio to the aerobic tank, the process could not only realize the simultaneous nitrogen and phosphorus removal, but also could reduce the operational cost.
J. G. He et al., "Study on the Operational Characteristics of Hybrid A2/O Process at Low Temperature", Applied Mechanics and Materials, Vol. 39, pp. 326-331, 2011