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Performance and operating experiences of the first scandinavian full-scale discfilter installation for tertiary phosphorus polishing with preceding coagulation and flocculation

Kängsepp, P. LU ; Väänänen, J. LU ; Örning, K.; Sjölin, M.; Olsson, P.; Rönnberg, J.; Wallebäck, F.; Cimbritz, M. LU and Pellicer-Nàcher, C. (2016) In Water Practice and Technology 11(2). p.459-468
Abstract

Microscreening (using Discfilters) is a widely used technology for suspended solids removal in tertiary effluent streams of wastewater treatment plants. Several pilot studies have shown the feasibility of using coagulation and flocculation in combination with microscreens for advanced phosphorus removal, but the number of fullscale references is still limited. In summer 2014, the first Scandinavian full-scale Discfilter installation with 2-stage chemical pre-treatment (coagulation and flocculation) was started up at the Arvidstorp wastewater treatment plant in Trollhättan (Sweden). The results obtained during the first year of operation proved that low suspended solids and total phosphorus effluent values could be achieved (,5 and,0.2... (More)

Microscreening (using Discfilters) is a widely used technology for suspended solids removal in tertiary effluent streams of wastewater treatment plants. Several pilot studies have shown the feasibility of using coagulation and flocculation in combination with microscreens for advanced phosphorus removal, but the number of fullscale references is still limited. In summer 2014, the first Scandinavian full-scale Discfilter installation with 2-stage chemical pre-treatment (coagulation and flocculation) was started up at the Arvidstorp wastewater treatment plant in Trollhättan (Sweden). The results obtained during the first year of operation proved that low suspended solids and total phosphorus effluent values could be achieved (,5 and,0.2 mg/l, respectively). These results were obtained even during heavy rainfall, when biologically and primary treated water were mixed at the influent of the Discfilter installation, before the coagulation and flocculation tanks. Further analysis of the results showed that Discfilter in combination with coagulant and polymer pre-treatment is a robust and reliable technology with low energy demand (34 Wh/m3) and a high recovery (1.9+0.4% of influent flow discharged as reject).

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Coagulation, Filter, Flocculation, Micro-screen, Treatment plant, Wastewater
in
Water Practice and Technology
volume
11
issue
2
pages
10 pages
publisher
IWA Publishing
external identifiers
  • scopus:84977083328
ISSN
1751-231X
DOI
10.2166/wpt.2016.040
language
English
LU publication?
yes
id
a8a2aa2c-522e-432d-bf5c-ffd290baaaf3
date added to LUP
2017-01-25 15:11:24
date last changed
2017-01-25 15:11:24
@article{a8a2aa2c-522e-432d-bf5c-ffd290baaaf3,
  abstract     = {<p>Microscreening (using Discfilters) is a widely used technology for suspended solids removal in tertiary effluent streams of wastewater treatment plants. Several pilot studies have shown the feasibility of using coagulation and flocculation in combination with microscreens for advanced phosphorus removal, but the number of fullscale references is still limited. In summer 2014, the first Scandinavian full-scale Discfilter installation with 2-stage chemical pre-treatment (coagulation and flocculation) was started up at the Arvidstorp wastewater treatment plant in Trollhättan (Sweden). The results obtained during the first year of operation proved that low suspended solids and total phosphorus effluent values could be achieved (,5 and,0.2 mg/l, respectively). These results were obtained even during heavy rainfall, when biologically and primary treated water were mixed at the influent of the Discfilter installation, before the coagulation and flocculation tanks. Further analysis of the results showed that Discfilter in combination with coagulant and polymer pre-treatment is a robust and reliable technology with low energy demand (34 Wh/m3) and a high recovery (1.9+0.4% of influent flow discharged as reject).</p>},
  author       = {Kängsepp, P. and Väänänen, J. and Örning, K. and Sjölin, M. and Olsson, P. and Rönnberg, J. and Wallebäck, F. and Cimbritz, M. and Pellicer-Nàcher, C.},
  issn         = {1751-231X},
  keyword      = {Coagulation,Filter,Flocculation,Micro-screen,Treatment plant,Wastewater},
  language     = {eng},
  month        = {06},
  number       = {2},
  pages        = {459--468},
  publisher    = {IWA Publishing},
  series       = {Water Practice and Technology},
  title        = {Performance and operating experiences of the first scandinavian full-scale discfilter installation for tertiary phosphorus polishing with preceding coagulation and flocculation},
  url          = {http://dx.doi.org/10.2166/wpt.2016.040},
  volume       = {11},
  year         = {2016},
}