돈사 폐수의 아질산화 반응에 따른 유기물 성상 변화

To remove high strength ammonium nitrogen in piggery wastewater through stable nitritation and to analyze nitrite conversion rate under the change of operating condition, laboratory scale reactor was operated with stable nitritation process. As the result, it is observed that nitritation is sensitively affected by SRT. Also, the organic matters in the influent and effluent of laboratory scale reactor were classified according to microbial respirometric method. In the organic matter contained in the raw piggery wastewater, Xs is the most part. But effluent of anaerobic digester form piggery wastewater, SI is the most part. In case of effluent of laboratory scale reactor, it is observed that the property of the organic matter fraction in the effluent is being changed according to ammonia removal rate and nitrite conversion rate. Through multiple correlation analysis, this finding also would be important data to predict the property of organic matters fraction in piggery wastewater through nitritation process.