---
cited_by:
  - publication: /report/usgcrp-climate-human-health-assessment-2016/chapter/water-related-illnesses/finding/exposure-risk-from-extreme-precipitation-events
    publication_type: finding
    reference: /reference/9224c0ef-9655-4335-a810-ce86baf5a502
  - publication: /report/usgcrp-climate-human-health-assessment-2016/chapter/water-related-illnesses/finding/water-infrastructure-failure
    publication_type: finding
    reference: /reference/9224c0ef-9655-4335-a810-ce86baf5a502
  - publication: /report/usgcrp-climate-human-health-assessment-2016/chapter/water-related-illnesses
    publication_type: chapter
    reference: /reference/9224c0ef-9655-4335-a810-ce86baf5a502
  - publication: /report/usgcrp-climate-human-health-assessment-2016
    publication_type: report
    reference: /reference/9224c0ef-9655-4335-a810-ce86baf5a502
contributors: []
description: 'Accumulation and breakthrough of several potentially toxic cyanobacterial species within drinking water treatment plants (DWTP) have been reported recently. The objectives of this project were to test the efficiency of different treatment barriers in cyanobacterial removal. Upon observation of cyanobacterial blooms, intensive sampling was conducted inside a full scale DWTP at raw water, clarification, filtration and oxidation processes. Samples were taken for microscopic speciation/enumeration and microcystins analysis. Total cyanobacteria cell numbers exceeded World Health Organisation and local alert levels in raw water (6,90,000 cells/mL). Extensive accumulation of cyanobacteria species in sludge beds and filters, and interruption of treatment were observed.Aphanizomenon cells were poorly coagulated and they were not trapped efficiently in the sludge. It was also demonstrated that Aphanizomenon cells passed through and were not retained over the filter. However, Microcystis, Anabaena, and Pseudanabaena cells were adequately removed by clarification and filtration processes. The breakthrough of non toxic cyanobacterial cells into DWTPs could also result in severe treatment disruption leading to plant shutdown. Application of intervention threshold values restricted to raw water does not take into consideration the major long term accumulation of potentially toxic cells in the sludge and the risk of toxins release. Thus, a sampling regime inside the plant adapted to cyanobacterial occurrence and intensity is recommended. '
display_name: Species-dependence of cyanobacteria removal efficiency by different drinking water treatment processes
doi: 10.1016/j.watres.2013.02.040
files: []
href: http://52.38.26.42:8080/article/10.1016/j.watres.2013.02.040.yaml
identifier: 10.1016/j.watres.2013.02.040
journal_identifier: water-research
journal_pages: 2689-2700
journal_vol: 47
notes: ~
parents:
  - display_name: "Finding 6.2 of 'The Impacts of Climate Change on Human Health in the United States: A Scientific Assessment'"
    reference: /reference/9224c0ef-9655-4335-a810-ce86baf5a502
    relationship: cito:isCitedBy
    uri: /report/usgcrp-climate-human-health-assessment-2016/chapter/water-related-illnesses/finding/exposure-risk-from-extreme-precipitation-events
  - display_name: "Finding 6.3 of 'The Impacts of Climate Change on Human Health in the United States: A Scientific Assessment'"
    reference: /reference/9224c0ef-9655-4335-a810-ce86baf5a502
    relationship: cito:isCitedBy
    uri: /report/usgcrp-climate-human-health-assessment-2016/chapter/water-related-illnesses/finding/water-infrastructure-failure
  - display_name: "Chapter 6: Climate Impacts on Water-Related Illnesses (in 'The Impacts of Climate Change on Human Health in the United States: A Scientific Assessment')"
    reference: /reference/9224c0ef-9655-4335-a810-ce86baf5a502
    relationship: cito:isCitedBy
    uri: /report/usgcrp-climate-human-health-assessment-2016/chapter/water-related-illnesses
  - display_name: 'The Impacts of Climate Change on Human Health in the United States: A Scientific Assessment'
    reference: /reference/9224c0ef-9655-4335-a810-ce86baf5a502
    relationship: cito:isCitedBy
    uri: /report/usgcrp-climate-human-health-assessment-2016
references: []
title: Species-dependence of cyanobacteria removal efficiency by different drinking water treatment processes
type: article
uri: /article/10.1016/j.watres.2013.02.040
url: ~
year: 2013