9CHANG C H, HAO O J. Sequencing batch reactor system for nutrient removal: ORP and pH profiles [ J ]. Chem Tech Biotechnol, 1996, (67) :27 - 38.
10ROTHE E, CORNEL P. Optimizing design, operation and energy consumption of biological aerated filters (BAF) for nitrogen removal of municipal wastewater [ J ]. Wat. Sci& Tech, 2004,50 (6) : 131 - 139.