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"
}