Journal cover Journal topic
Drinking Water Engineering and Science An interactive open-access journal
Journal topic

Journal metrics

Journal metrics

  • CiteScore value: 1.08 CiteScore
    1.08
  • SNIP value: 0.624 SNIP 0.624
  • SJR value: 0.278 SJR 0.278
  • IPP value: 1.09 IPP 1.09
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 14 Scimago H
    index 14
Discussion papers
https://doi.org/10.5194/dwes-2018-28
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/dwes-2018-28
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 04 Jan 2019

Research article | 04 Jan 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Drinking Water Engineering and Science (DWES).

Bio-purification of drinking water by froth flotation

Ghanim Hassan1 and Robert Edyvean2 Ghanim Hassan and Robert Edyvean
  • 1Department of Water Resources Techniques, Middle Technical University, Baghdad, Iraq
  • 2Department of Chemical and Biological Engineering, The University of Sheffield, Sheffield, UK

Abstract. The main technique for removing bacteria from water for various applications is chemical disinfection. However, this method has many disadvantages such as producing disinfectant by-products (DBPs), biofilm formation and either rendering the water unpotable (at high residual disinfection) or leaving a potential for lethal diseases such as Cholera (if the residual disinfection is too low). Recently, a process was developed for continuous removal of bacteria from water using the principle of froth flotation through compressed air only without any chemicals (Hassan, 2015). This work examines the extent to which chemical free froth flotation can purify drinking water. The experiments were carried out using two flotation columns with different column lengths, each equipped with ceramic air sparger. Raw water containing bacteria was fed into the column from the top. Air was pumped through the water enough to produce a froth which separated the bacteria and, when removed, the bacterial content measured. The results show that the bacterial concentration can be reduced by 55% of its original concentration under the optimal experimental conditions so far found. This suggests that the technique can be used as a pre-purification step to minimize the use of disinfectants; hence their byproducts, and to control biofilm growth.

Ghanim Hassan and Robert Edyvean
Interactive discussion
Status: final response (author comments only)
Status: final response (author comments only)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Login for Authors/Topical Editors] [Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement
Ghanim Hassan and Robert Edyvean
Ghanim Hassan and Robert Edyvean
Viewed  
Total article views: 145 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
104 36 5 145 4 3
  • HTML: 104
  • PDF: 36
  • XML: 5
  • Total: 145
  • BibTeX: 4
  • EndNote: 3
Views and downloads (calculated since 04 Jan 2019)
Cumulative views and downloads (calculated since 04 Jan 2019)
Viewed (geographical distribution)  
Total article views: 90 (including HTML, PDF, and XML) Thereof 87 with geography defined and 3 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Cited  
Saved  
No saved metrics found.
Discussed  
No discussed metrics found.
Latest update: 24 Mar 2019
Publications Copernicus
Download
Short summary
Froth is produced without chemicals. this froth was proven to hold bacteria to be withdrawn continuously in order to purify drinking water from bacteria. The question now is that how far can this process go to produce high-quality drinking water from the bacterial sense. This work examines that. it was concluded that nearly half of the bacterial content can be removed in such a process.
Froth is produced without chemicals. this froth was proven to hold bacteria to be withdrawn...
Citation