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Impact of Temperature and Coagulants on Sludge Dewaterability

Fitria, Dewi ; Scholz, Miklas LU ; Swift, Gareth M. and Al-Faraj, Furat (2022) In International Journal of Technology 13(3). p.596-605
Abstract

Temperature and coagulant types have an important impact on the quantity and quality of the residue (sludge) in water and wastewater treatment processes. Temperature influences water viscosity and the distribution of the coagulant in water. Coagulants can promote the agglomeration of fine particles into larger flocs so that they can be more easily separated from the water. Experiments have been conducted to explore the relationship between temperature (16-26°C), the type of coagulant, and sludge dewaterability (estimated using the capillary suction time (CST)). Alum, Ferric, and Moringa oleifera Lam were used as coagulants. The influences of different mixer shapes, turbidity values, and flocs sizes on sludge dewaterability have been... (More)

Temperature and coagulant types have an important impact on the quantity and quality of the residue (sludge) in water and wastewater treatment processes. Temperature influences water viscosity and the distribution of the coagulant in water. Coagulants can promote the agglomeration of fine particles into larger flocs so that they can be more easily separated from the water. Experiments have been conducted to explore the relationship between temperature (16-26°C), the type of coagulant, and sludge dewaterability (estimated using the capillary suction time (CST)). Alum, Ferric, and Moringa oleifera Lam were used as coagulants. The influences of different mixer shapes, turbidity values, and flocs sizes on sludge dewaterability have been assessed. The results show that ferric chloride was unaffected by temperature, whereas alum and M. oleifera performances were influenced by temperature. CST results using the coagulant ferric chloride, regardless of mixer shape, turbidity, and floc size, were insensitive to temperature differences.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Capillary suction time, Coagulants, Floc sizes, Sludge dewaterability, Temperature
in
International Journal of Technology
volume
13
issue
3
pages
10 pages
publisher
Faculty of Engineering Universitas Indonesia
external identifiers
  • scopus:85133390916
ISSN
2086-9614
DOI
10.14716/ijtech.v13i3.4886
language
English
LU publication?
yes
id
a6b9d5b5-8dba-48b4-b210-aeb6bb85aef4
date added to LUP
2022-09-06 14:14:53
date last changed
2022-09-06 17:00:21
@article{a6b9d5b5-8dba-48b4-b210-aeb6bb85aef4,
  abstract     = {{<p>Temperature and coagulant types have an important impact on the quantity and quality of the residue (sludge) in water and wastewater treatment processes. Temperature influences water viscosity and the distribution of the coagulant in water. Coagulants can promote the agglomeration of fine particles into larger flocs so that they can be more easily separated from the water. Experiments have been conducted to explore the relationship between temperature (16-26°C), the type of coagulant, and sludge dewaterability (estimated using the capillary suction time (CST)). Alum, Ferric, and Moringa oleifera Lam were used as coagulants. The influences of different mixer shapes, turbidity values, and flocs sizes on sludge dewaterability have been assessed. The results show that ferric chloride was unaffected by temperature, whereas alum and M. oleifera performances were influenced by temperature. CST results using the coagulant ferric chloride, regardless of mixer shape, turbidity, and floc size, were insensitive to temperature differences.</p>}},
  author       = {{Fitria, Dewi and Scholz, Miklas and Swift, Gareth M. and Al-Faraj, Furat}},
  issn         = {{2086-9614}},
  keywords     = {{Capillary suction time; Coagulants; Floc sizes; Sludge dewaterability; Temperature}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{596--605}},
  publisher    = {{Faculty of Engineering Universitas Indonesia}},
  series       = {{International Journal of Technology}},
  title        = {{Impact of Temperature and Coagulants on Sludge Dewaterability}},
  url          = {{http://dx.doi.org/10.14716/ijtech.v13i3.4886}},
  doi          = {{10.14716/ijtech.v13i3.4886}},
  volume       = {{13}},
  year         = {{2022}},
}