TY - JOUR T1 - Enhancing simultaneous nitritation and anammox in recirculating biofilters:effects of unsaturated zone depth and alkalinity dissolution of packing materials. Y1 - 2013// N1 - SU835331 JF - JOURNAL OF HAZARDOUS MATERIALS J1 - J HAZARD MATER VL - 244 SP - 671 EP - 680. ER -