Volume No. 3 Issue No.: 3 Page No.: 796-806 Jan-Mar 2009

 

REMOVAL OF ANIONIC SURFACTANTS IN 100 ML/D UP-FLOW ANAEROBIC SLUDGE BLANKET REACTOR WITH DIFFUSED AERATION BASED POST TREATMENT SYSTEM

 

Khushboo Patel, Arvind Kumar Mungray* and Z.V.P. Murthy

Department of Chemical Engineering, S.V. National Institute of Technology, Surat (INDIA)

 

Received on : December 1, 2008

 

ABSTRACT

 

Anionic surfactants (AS) are widely used in household and industrial products. After use, they are mainly discharged into the sewage treatment plants (STPs) and then dispersed into the environment through effluent discharge into surface waters. A full scale (100 ML/d capacity) up-flow anaerobic sludge blanket (UASB) reactor with aerobic (diffused aeration) based STP for the removal of AS was studied and compared with polishing ponds (PP) and ozonation as polishing steps for UASB effluents. Samples of raw sewage, UASB effluents, post treated effluents and final effluents were collected for the period of sixteen weeks.
Anionic surfactants, ranged from 3.0 to 8.5 mg/L over the monitoring period in raw sewage. UASB reactor effluents contain substantial concentrations of AS (4.12

 

Keywords : Anionic surfactants, Up-flow anaerobic sludge blanket reactor, Aerobic, post treatment, Diffused aeration.

 

 

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