Publication detail
Dewatering of Thermally Disintegrated Sewage Sludge
ELSAESSER, T. BORÁŇ, J. HOUDKOVÁ, L.
Czech title
Odvodňování termicky desintegrovaného čistírenského kalu
English title
Dewatering of Thermally Disintegrated Sewage Sludge
Type
journal article - other
Language
en
Original abstract
The contribution describes investigations in the attainable dry matter content of thermally disintegrated sewage sludge. The purpose is to find the effects of thermal disintegration on sewage sludge. Additionally, to identify disintegration conditions especially temperature level for energy efficient equipment design. Measurements showed that thermal disintegration of sewage sludge results in a higher amount of undissolved matter in the supernatant water. The improve in dry matter content depends highly on the temperature level and was identified to be significant from 120C onwards. Based on the results, investigations in thermal disintegration will be intensified in the region of relevant temperatures.
Czech abstract
Příspěvek popisuje experimentální výzkum možnosti zvýšení odvodnitelnosti čistírenského kalu jeho termickou desintegrací. Cílem bylo nalézt vhodné podmínky desintegrace, zejména teploty, která výrazně ovlivňuje energetické nároky celého procesu. Měření ukázala, že desintegrací kalu vzrůstá podíl nerozpuštěných látek v kalové vodě (získané po odstředění vzorku kalu). Vliv na obsah sušiny v kalu po odstředění výrazně závisí na teplotě desintegrace. Nejnižší vhodná teplota byla stanovena na 120 C, pod touto hranicí se vliv termické desintegrace na odvodnitelnost kalu neprojevil.
English abstract
The contribution describes investigations in the attainable dry matter content of thermally disintegrated sewage sludge. The purpose is to find the effects of thermal disintegration on sewage sludge. Additionally, to identify disintegration conditions especially temperature level for energy efficient equipment design. Measurements showed that thermal disintegration of sewage sludge results in a higher amount of undissolved matter in the supernatant water. The improve in dry matter content depends highly on the temperature level and was identified to be significant from 120C onwards. Based on the results, investigations in thermal disintegration will be intensified in the region of relevant temperatures.
Keywords in Czech
čistírenský kal, dezintegrace, sušina, thermické zpracování, odvodnění
Keywords in English
Sewage sludge, disintegration, dry matter content, thermal treatment, dewatering
RIV year
2009
Released
13.05.2009
Publisher
AIDIC
Location
Milano
ISSN
1974-9791
Journal
Chemical Engineering Transactions
Volume
18
Number
1
Pages from–to
983–988
Pages count
6
BIBTEX
@article{BUT48966,
author="Thomas {Elsässer} and Jaroslav {Boráň} and Lucie {Houdková},
title="Dewatering of Thermally Disintegrated Sewage Sludge",
journal="Chemical Engineering Transactions",
year="2009",
volume="18",
number="1",
month="May",
pages="983--988",
publisher="AIDIC",
address="Milano",
issn="1974-9791"
}