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Mg2+, PO4 3--P공급원에 다른 Struvite 형성과 축산분뇨 내의 암모니아 제거
강우창 ( W. C. Kang ),정성진 ( S. J. Jung ),정종환 ( J. H. Jung ),함형주 ( H. J. Ham ),오상은 ( S. E. Oh ) 강원대학교 농업생명과학연구원(구 농업과학연구소) 2012 강원 농업생명환경연구 Vol.24 No.1
Struvite crystallization is good for high removal efficiency of nitrogen and phosphate in wastewater. In this study, comparison between NH4 +-N and PO4 2- removal in artificial, swine wastewater has been performed. In artificial wastewater treated with MgO, the value of pH was increased to 11 and the electrical conductivity (EC) was decreased possibly due to struvite generation. Ammonia was sharply decreased to about 80% and became very low in concentration upon addition of H3PO4. Removal efficiency of PO4 2- was 90%. In swine wastewater pH was increased like artificial wastewater. Ammonia was also decreased. However, it was decreased only 40% due to effect of chemicals already present in swine wastewater.