A pilot-scale intermittent surface aeration device was tested in this study. A circular concrete tank (2.4 m in diameter and 2.4 m in depth) was used as the manure storage where manure was aerated continuously for a 10-h period per day (from 8 A.M. to 6 P.M.). For comparison, an identical tank was used as the control. For the aeration tank, two crisscross PVC pipe structures (2.55 cm in diameter) were placed about 61 cm apart along the depth, with the liquid suction crisscross located on the top. A rigid PVC pipe vertically held the two crisscrosses together. Openings (0.64 cm in diameter) were made on the pipes at an interval of 10 cm, either facing down (for the liquid suction pipes) or facing horizontally (for the liquid injection pipes). The aeration system consisted of a venturi air injector, a 0.75-kW centrifugal pump, and some flexible hoses that connected the PVC pipes to the pump so the whole PVC structure could float and move up and down with the liquid level in the tank. The results indicated that the solids removal efficiencies increased from 9.26% to 26.90% for TS and 16.60% to 46.40% for TVS while TVS/TS decreased from 0.57 to 0.35. The BOD5 removal efficiency remained stable around 90% to 95% after the first four weeks of aeration during which it increased linearly from about 7.5% to 90%. The VFA removal efficiency increased exponentially from 60% after one week to 98% three months later. It appeared that treatment time of three weeks would be needed to stabilize the liquid manure to reach VFA levels not causing odor.