Publication detail

Laboratory Determination of Selected Properties of Activated and Return Activated Sludge

HOUDKOVÁ, L.

Original Title

Laboratory Determination of Selected Properties of Activated and Return Activated Sludge

Type

journal article - other

Language

English

Original Abstract

Results are presented from laboratory measurements of viscosity and density of activated and return activated sludge. Solubility of oxygen in sludge liquor was measured and results were compared to solubility of oxygen in pure water. Viscosity measurements show that sludge containing up to 1% dry solids can be considered a Bingham fluid and sludge with dry solids content above 1% should be described using the Herschley-Buckley model. Sludge density is only slightly higher than water density and with increasing dry solids content increases negligibly. The amount of air dissolved in sludge liquor can be calculated using Henry's Law constants for water because the solubility of oxygen in water and sludge liquor differs minimally.

Keywords

sewage sludge, density, viscosity, flotation, oxygen solubility

Authors

HOUDKOVÁ, L.

RIV year

2013

Released

1. 4. 2013

Publisher

DEStech Publications, Inc.

Location

Lancaster, USA

ISBN

1544-8053

Periodical

Journal of Residuals Science & Technology

Year of study

10

Number

2

State

United States of America

Pages from

77

Pages to

84

Pages count

7

BibTex

@article{BUT100158,
  author="Lucie {Houdková}",
  title="Laboratory Determination of Selected Properties of Activated and Return Activated Sludge",
  journal="Journal of Residuals Science & Technology",
  year="2013",
  volume="10",
  number="2",
  pages="77--84",
  issn="1544-8053"
}