Skip to main content

Impact of Applying Electrocoagulation Pre-treatment Step on Grey Water Treatment by Submerged Membrane Bioreactor

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial


Chemical coagulation is widely used for enhancing the performance of various water and wastewater treatment systems, including membrane filtration processes such as submerged membrane bioreactor (SMBR) units. However, the addition of chemicals to the wastewater may result in production of undesirable chemical by-products or increase the volume of sludge in the bioreactor. Alternatively, applying electrocoagulation (EC) technique has been shown to be a promising and novel approach in SMBR applications. In this study, the impact of applying EC step was investigated as a pretreatment stage for grey water treatment by SMBR system. The main objective of the present study was to investigate the performance of the integrated process of EC-SMBR under different voltage gradients. The performance of the integrated process of (EC-SMBR) was compared with the operation of a SMBR system operated alone. The comparison was achieved in two sequential operational phases in which two different voltage gradients were applied in the EC step. In both phases, aluminium electrodes were used. The results indicated that the EC unit can contribute in improving the SMBR performance if an adequate voltage gradient was applied in EC step. The improvement was observed clearly in Phase II when a voltage gradient of 1.26 V/cm was applied. Applying a low level of voltage gradient of 0.64 V/cm (Phase I) in EC step did not exhibit a significant improvement in pollutant removals.

Document Type: Research Article


Publication date: January 1, 2012

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • ingentaconnect is not responsible for the content or availability of external websites

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more
Real Time Web Analytics