Aerobic granular sludge sequencing batch reactor: study of granule formation and the cycle time effect in the carbon, nitrogen, and phosphorus removal from domestic wastewater

作者：Wagner Jamile^*; Helena Rejane; da Costa Ribeiro

来源：Engenharia Sanitaria e Ambiental, 2015, 20(2): 269-278.

DOI：10.1590/S1413-41522015020000078980

• aerobic granules
• sequencing batch reactor
• nutrients removal
• domestic wastewater treatment

In this work, the formation of aerobic granules in a sequencing batch reactor fed with domestic wastewater was studied and the reactor's performance, in terms of carbon, nitrogen, and phosphorus removal, during operational cycles of 3 and 4 h, was evaluated. After 150 days of operation, the reactor's biomass predominantly consisted of compact mature granules, with a suspended solids concentration around 1.5 g.L-1. The reactor presented a high capacity for removing carbon, nitrogen, and phosphorus, mainly when operated in successive cycles of 4 h. Average removal efficiencies of 82 +/- 5% for soluble chemical oxygen demand, 69 +/- 19% for NH4+-N, and 30 +/- 10% for PO43--P were obtained.

• 出版日期2015-6