Aerobic Composting of Waste water Sludge

슬러지의 호기성(好氣性) 퇴비화(堆肥化)

The purpose of this study was to know reduction of organic matter, degree of humification and composting period by corp. posting of night soil sludge. Laboratory reactor was used for this study. Samples being used in this experimentation was sludge of night soil treatment plant. The degree of composting was investigated by changing moisture content. The laboratory study indicated that the degree of humification was about 175, C/N ratio was about 11~13, composting period was about 10 days and COD reduction was 37mg/l/day in case of 60% moisture content.

본(本) 연구(硏究)는 배뇨(排尿)슬러지를 퇴비화(堆肥化)시켜 유기물(有機物)의 감소(減少), 부식비도(腐蝕比度)와 퇴비화기간(堆肥化期間)을 알아보는데 그 목적(目的)이 있으며 실험실(實驗室) 반응조(反應槽)가 이용(利用)되었다. 실험(實驗)에 사용(使用)된 시료(試料)는 기뇨처리장(冀尿處理場) 슬러지로서 함수비(含水比)를 단계적(段階的)으로 변화(變化)시켜 퇴비화정도(堆肥化程度)를 알아보았다. 함수비(含水比)가 60%에서 퇴비화기간(堆肥化期間)이 약 10일(日)로 나타났고 COD는 37mg/l/day(lgr 건조 중량중)감소(減少)하였으며, C/N는 약 11~13, 부식비도(腐蝕比度)는 175정도(程度)로 나타났다.