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Enhanced mechanical deep dewatering of dewatered sludge by a thermalhydrolysis pre-treatment: Effects of temperature and retention time 게시글의 제목, 학술지명, 저자, 발행일, 작성내용을 보여줌
Enhanced mechanical deep dewatering of dewatered sludge by a thermalhydrolysis pre-treatment: Effects of temperature and retention time
학술지명 Environmental Research 저자 김연권,김희중,이용구,전광민,장암
발표일 2020-05-25

This study investigated effects of the thermal hydrolysis pre-treatment on mechanical deep dewaterability of
dewatered sludge to extend understanding of dewatering characteristics of thermally hydrolyzed sludge. Floc
sizes of dewatered sludge were gradually reduced during the thermal hydrolysis pre-treatment at 170 °C and
185 °C with increasing retention time whereas longer retention time (> 60 min) increased floc sizes of thermally
hydrolyzed sludges at 200 °C due to formation of undesired refractory organic materials (ROMs), which might
hinder the disintegration of dewatered sludge flocs. Similar trends were found for thermal hydrolytic solubilization
of dewatered sludge.
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