Biotechnological Sulphide Removal from Effluents

Author:

Buisman C. J. N.1,Lettinga G.1,Paasschens C. W. M.2,Habets L. H. A.3

Affiliation:

1. Agricultural University Wageningen, Department of Water Pollution Control, Bomenweg 2, 6703 HD Wageningen, The Netherlands

2. Industriewater Eerbeek bv, PO Box 13, 6960 AA Eerbeek, The Netherlands

3. Paques bv, PO Box 52, 8560 AB Balk, The Netherlands

Abstract

A new system for sulphide removal is reported in which sulphide is converted to elemental sulphur using colourless sulphur bacteria. A 4 m3 biorotor reactor has been tested using sulphide-containing anaerobically treated papermill wastewater. Sulphide removal efficiencies well above 90% were achieved at a hydraulic retention time of 19 minutes, using Pall rings of 2.5 cm or Bio-Net 200 as carrier materials. It was also found that reticulated polyurethane is not suitable as carrier material for the sulphide removal process in the presence of fatty acids.

Publisher

IWA Publishing

Subject

Water Science and Technology,Environmental Engineering

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