Two laboratory-scale sequencing batch reactors (SBRs) were operated to treat fresh-screened manure and manure from an anaerobic lagoon. Three distinct modes of operation were studies on the SBR treating fresh manure (SBR A). s-COD, t-COD, TOC, ammonical-N, ortho-P, TP and TKN removal efficiencies of 80%, 68%, 58%, 91%, 59%, 58% and 71% were achieved for soluble portions (except for t-COD) in the SBR for one of the modes. TSS removals of 95% were achieved for two of the modes. There was an indication that enhanced phosphorus uptake might have been happening in the reactor, though not in a very dominant form during one of the modes. The second SBR (SBR B) employed only gas-mixing to suspend the solids in the reactor. This reactor had only one outlet for gas and this outlet can be used to treat/ trap the reactor off-gas if odor emission is an issue. s-COD, t-COD, TOC, ammonical-N, ortho-P, TP and TKN removal efficiencies of 46%, 60%, 43%, 33%, 61%, 53% and 40% were achieved. The reason for low COD and nitrogen removals was the loss of solids in the effluent due to the rigid gas seal used initially. Anaerobic digestion of wasted solids from SBR A yielded orthophosphates around 70 mg-P/L. This concentration lies in the range already tested for phosphorus recovery as struvite in the crystallizer developed at University of British Columbia. Preliminary pilot scale experiment on a batch of supernatant containing phosphorus released from wasted solids of a pilot scale SBR treating dairy manure diluted with sewage gave phosphorus removal efficiencies of 75-80%. However, the removed phosphorus was in the form of fines only. Future experiments address recovery in form of crystals, and performance of SBR B for the extent of improvement made by introduction of a collapsible gas seal.