Publication detail

Processing of sewage sludge: Dependence of sludge dewatering efficiency on amount of flocculant

BORÁŇ, J. HOUDKOVÁ, L. ELSÄSSER, T.

Original Title

Processing of sewage sludge: Dependence of sludge dewatering efficiency on amount of flocculant

Type

journal article - other

Language

English

Original Abstract

Paper presents results of experimental dewatering of stabilized sludge analysis and study. The experiments were carried out at a small waste water treatment plant (15,000 population equivalent). Experiment focused on impact of consumption of flocculant and centrifuge load on quality of dewatered sludge and centrate. Dry solids in dewatered sludge and content of undissolved particles in the centrate were observed in particular for proper evaluation of the experiment. It was proven that specific consumption of flocculant has greater impact on centrate quality than on dry solids content in dewatered sludge. It was possible to increase dry solids content in dewatered sludge only by 10% at most. However, amount of undissolved particles dropped more than ten-fold. Regarding quality of dewatered sludge and centrate, optimum specific consumption of flocculant during the experiment amounts to 8g/kg of dry solids of sludge with flocculant concentration being 0.16% and centrifuge load reaching 110 kg/h of dry solids. Specific consumption of flocculant amounting to 5.4 g/kg of dry solids of sludge (calculated value) under identical operational conditions proves to be the best economical option.

Keywords

Waste water treatment plant, Sewage sludge, Flocculant, Dewatering, Centrifuge

Authors

BORÁŇ, J.; HOUDKOVÁ, L.; ELSÄSSER, T.

RIV year

2010

Released

10. 3. 2010

Publisher

Elsevier

ISBN

0921-3449

Periodical

RESOURCES CONSERVATION AND RECYCLING

Year of study

54

Number

5

State

Kingdom of the Netherlands

Pages from

278

Pages to

282

Pages count

5

BibTex

@article{BUT47102,
  author="Jaroslav {Boráň} and Lucie {Houdková} and Thomas {Elsässer}",
  title="Processing of sewage sludge: Dependence of sludge dewatering efficiency on amount of flocculant",
  journal="RESOURCES CONSERVATION AND RECYCLING",
  year="2010",
  volume="54",
  number="5",
  pages="278--282",
  issn="0921-3449"
}