Air stripping of ammonia is a widely used process for the pretreatment of wastewater. Lab scale experiments were removal of 50% to air stripping from livestock excretions. The effects of air to liquid flow ratio and pH were investigated using wastewater with a range of Total suspended solid concentration and pH values. Four sets of air stripping experiments were carried out using two identical 0.5 L and 1 L reactor made of pyrex. At a temperatures of 20℃, pH 11 and air flow rate of 10 L/min, aeration 180min to achieve 90% removal efficiency. However, at a pH 9~9.5 there was 50% removal efficiency. The results showed that an influent with a low pH required a longer period of time to achieve the same treatment efficiency.

• Eun-Sil Lee(Bio Resource Team, Institute for Advanced Engineering)
• Seung-Kyu Yang(Bio Resource Team, Institute for Advanced Engineering)
• Ho Kim(Bio Resource Team, Institute for Advanced Engineering)