Control of Iron Bacteria Problems in Groundwater Pumping Systems.

The fouling of groundwater or drainage pumping systems by  iron bacteria is a world wide problem resulting in impaired hydraulic performance, increased pumping costs, maintenance and corrosion. Naturally occurring bacteria (commonly called iron bacteria), given a suitable chemical and physical environment can thrive and through their metabolic processes convert soluble ferrous iron  into its insoluble ferric form. The result is the familiar reddish brown gelatinous mass of bacteria, iron hydroxides and water.

Since the occurrence of iron bacteria is due to a combination  of physical, chemical and microbiological factors, successful control measures must address all of these. Techniques developed by the  South Australian Water Corporation have proven very effective. A method (now patented) employing in situ generation of chlorine by electrolysis of the groundwater being pumped provides effective control of iron deposition,  thereby eliminating this as a limiting factor in long term pump performance.  Some bores which would previously lose up to 45% of their flow within 50 days of the installation of a new pump, have now operated continuously for up to  3 years with no loss of flow due to iron deposition.

Peter  Forward BE (Hons)
Telephone :- 08 82077725
FAX :- 08 84636048
Mail :- PO. Box 546 Vaughan Terrace, Berri 5343
Electronic mail :- peter.forward@sawater.com.au