3-6-1 発酵乾燥した下水汚泥の熱分解特性の検討(3-6 熱分解,Session3 バイオマス等,研究発表)

概要

論文の詳細を見る
Effective treatment of sewage sludge, which has a large amount of water, has been of great concern. Biodrying processes that utilize the biological heat through the aerobic degradation of organic matter are believed to reduce the moisture content of sludge without need for supplementary fossil fuels. In this study, pyrolysis behavior of biologically-dried sewage sludge to obtain solid fuel or material is examined. The degree of biological degradation has little effect on the weight-loss curve during pyrolysis. Nitrogen contained in the dried sludge almost exists as Kjeldahl nitrogen and has not changed to another type of nitrogen during pyrolysis. NH_3 is produced below 250℃ and above 400℃ during pyrolysis and the amount of N released as NH_3 was 20% of the total amount of N released. About 60% of nitrogen is released as tar-N during pyrolysis.
2011-08-09