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Chemically enhanced primary treatment, microsieving, direct membrane filtration and GAC filtration of municipal wastewater : a pilot-scale study

Gidstedt, Simon LU orcid ; Betsholtz, Alexander LU ; Cimbritz, Michael LU ; Davidsson, Åsa LU orcid ; Hagman, Marinette LU ; Karlsson, Stina LU ; Takman, Maria LU ; Svahn, Ola and Micolucci, Federico LU (2024) In Environmental Technology (United Kingdom) 45(1). p.28-39
Abstract

Chemically enhanced primary treatment (CEPT) followed by microsieving and direct membrane filtration (DMF) as ultrafiltration, was evaluated on pilot scale at a municipal wastewater treatment plant. In addition, a granular activated carbon (GAC) filter downstream of DMF was evaluated for the removal of organic micropollutants. Up to 80% of the total organic carbon (TOC) and 96% of the total phosphorus were removed by CEPT with microsieving. The additional contribution of subsequent DMF was minor, and only five days of downstream GAC filtration was possible due to fouling of the membrane. Of the 21 organic micropollutants analysed, all were removed (≥ 98%) by the GAC filter until 440 bed volumes, while CEPT with microsieving and DMF... (More)

Chemically enhanced primary treatment (CEPT) followed by microsieving and direct membrane filtration (DMF) as ultrafiltration, was evaluated on pilot scale at a municipal wastewater treatment plant. In addition, a granular activated carbon (GAC) filter downstream of DMF was evaluated for the removal of organic micropollutants. Up to 80% of the total organic carbon (TOC) and 96% of the total phosphorus were removed by CEPT with microsieving. The additional contribution of subsequent DMF was minor, and only five days of downstream GAC filtration was possible due to fouling of the membrane. Of the 21 organic micropollutants analysed, all were removed (≥ 98%) by the GAC filter until 440 bed volumes, while CEPT with microsieving and DMF removed only a few compounds. Measurements of the oxygen uptake rate indicated that the required aeration for supplementary biological treatment downstream of CEPT with microsieving, both with and without subsequent DMF, was 20−25% of that in the influent wastewater. This study demonstrated the potential of using compact physicochemical processes to treat municipal wastewater, including the removal of organic micropollutants.

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author
; ; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
CEPT, DMF, GAC, microsieving
in
Environmental Technology (United Kingdom)
volume
45
issue
1
pages
28 - 39
publisher
Taylor & Francis
external identifiers
  • pmid:35815380
  • scopus:85134407521
ISSN
0959-3330
DOI
10.1080/09593330.2022.2099307
language
English
LU publication?
yes
id
4883697e-19c5-4552-b42a-3a06c5aab305
date added to LUP
2022-11-01 12:34:20
date last changed
2024-06-28 17:23:49
@article{4883697e-19c5-4552-b42a-3a06c5aab305,
  abstract     = {{<p>Chemically enhanced primary treatment (CEPT) followed by microsieving and direct membrane filtration (DMF) as ultrafiltration, was evaluated on pilot scale at a municipal wastewater treatment plant. In addition, a granular activated carbon (GAC) filter downstream of DMF was evaluated for the removal of organic micropollutants. Up to 80% of the total organic carbon (TOC) and 96% of the total phosphorus were removed by CEPT with microsieving. The additional contribution of subsequent DMF was minor, and only five days of downstream GAC filtration was possible due to fouling of the membrane. Of the 21 organic micropollutants analysed, all were removed (≥ 98%) by the GAC filter until 440 bed volumes, while CEPT with microsieving and DMF removed only a few compounds. Measurements of the oxygen uptake rate indicated that the required aeration for supplementary biological treatment downstream of CEPT with microsieving, both with and without subsequent DMF, was 20−25% of that in the influent wastewater. This study demonstrated the potential of using compact physicochemical processes to treat municipal wastewater, including the removal of organic micropollutants.</p>}},
  author       = {{Gidstedt, Simon and Betsholtz, Alexander and Cimbritz, Michael and Davidsson, Åsa and Hagman, Marinette and Karlsson, Stina and Takman, Maria and Svahn, Ola and Micolucci, Federico}},
  issn         = {{0959-3330}},
  keywords     = {{CEPT; DMF; GAC; microsieving}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{28--39}},
  publisher    = {{Taylor & Francis}},
  series       = {{Environmental Technology (United Kingdom)}},
  title        = {{Chemically enhanced primary treatment, microsieving, direct membrane filtration and GAC filtration of municipal wastewater : a pilot-scale study}},
  url          = {{http://dx.doi.org/10.1080/09593330.2022.2099307}},
  doi          = {{10.1080/09593330.2022.2099307}},
  volume       = {{45}},
  year         = {{2024}},
}