A pilot plant with capacity to treat up to 1.5 msuperscript 3/day was installed in August 1997 at D & B Swine Farm in Halifax County, North Carolina, USA. The system was composed of a homogenization tank, a Sequencing Batch Reactor (SBR), biosolids and effluent storage tanks, and associated pipes, pumps, and controls. The treatment system was monitored for 7 months and operated with a solids retention time of 35 days. Specific objectives of this study were to reduce nitrogen, phosphorus, and odour in treatment effluent; to evaluate different aeration strategies to optimize treatment performance; and to quantify the nutrient value of the biosolids produced by the system. The organic loading rate to the SBR varied from 0.5 to 1.0 kg COD/msuperscript 3-day, depending on the strength of the manure. Concentration reductions varied with hydraulic retention time (HRT) and aeration scheme used. Higher removals were observed when the SBR was operated with 10 days HRT and short aerating/non-aerating periods (aeration 1 hour on, 1 hour off) than with other conditions. Total-N and total-P removal ranged from 75-95% and 15-70%, respectively. About 25% of the influent volume was removed as biosolids. Although the N and P contents of the biosolids were relatively high on a dry weight basis when compared to other types of products, they must be further concentrated and processed for agriculture use. The SBR also significantly reduced odour intensity and irritation intensity as evaluated by an odour panel using liquid influent and effluent samples. Biosolids odour was less intense than flushed swine manure, but had higher odour and irritation intensity than the treated effluent.