Treatment performance of textile wastewater using electrocoagulation (EC) process under combined electrical connection of electrodes

Ahmed Samir Naje, Shreeshivadasan Chelliapan, Zuriati Zakaria, Saad A. Abbas

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The electrocoagulation (EC) process (using electrically coupled interconnections) was investigated for the treatment of textile wastewater. The impact of several operating parameters such as bipolar electrode element (Fe or Al), electrolysis time (RT), current intensity (I), pH, chemical support, inter-electrode distance (IED), and stirring speed (M<inf>rpm</inf>) were examined. Additionally, the consumption of electrodes and electrical energy, sludge compaction, operating costs and a comparison with the traditional chemical coagulation method has been thoroughly investigated. The most suitable EC performance was achieved by using monopolar and bipolar aluminum-type plates. These plates were alternated within the electrode pack for 90 min. Preliminary results showed the following optimal operating conditions: I=0.6 A, pH=6, NaCl=0.1 kg/m<sup>3</sup>, IED=0.5 cm, and M<inf>rpm</inf>=500. The implementation of these parameters on textile wastewater revealed a relatively high removal efficiency of COD (92.6%), TSS (96.4%), color (96.5%), BOD<inf>5</inf> (88%), TDS (87%), turbidity (96%), phenols (over 99%), and phosphate (95%). The overall operating cost for the EC operation was 1.76US$/m<sup>3</sup>. This value was calculated based on the electrode and energy consumption, chemicals, and sludge disposal. The EC operation was found to be more efficient than the traditional chemical coagulation process.

Original languageEnglish
Pages (from-to)5924-5941
Number of pages18
JournalInternational Journal of Electrochemical Science
Volume10
Issue number7
Publication statusPublished - 2015
Externally publishedYes

Fingerprint

Textiles
Wastewater
Electrodes
Coagulation
Operating costs
Sludge disposal
Phenols
Turbidity
Aluminum
Electrolysis
Phosphates
Compaction
Energy utilization
Color

Keywords

  • Aluminum electrode
  • Electrocoagulation
  • Iron electrode
  • Monopolar and bipolar connection
  • Textile wastewater

ASJC Scopus subject areas

  • Electrochemistry

Cite this

Treatment performance of textile wastewater using electrocoagulation (EC) process under combined electrical connection of electrodes. / Naje, Ahmed Samir; Chelliapan, Shreeshivadasan; Zakaria, Zuriati; Abbas, Saad A.

In: International Journal of Electrochemical Science, Vol. 10, No. 7, 2015, p. 5924-5941.

Research output: Contribution to journalArticle

Naje, Ahmed Samir ; Chelliapan, Shreeshivadasan ; Zakaria, Zuriati ; Abbas, Saad A. / Treatment performance of textile wastewater using electrocoagulation (EC) process under combined electrical connection of electrodes. In: International Journal of Electrochemical Science. 2015 ; Vol. 10, No. 7. pp. 5924-5941.
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