Western Bay of Plenty District Council
To Whom it May Concern,
Head Office 3arkes Comer, Greerton, Taufanga Private Bag 12303, Tauranga Mall Centre, Taura►a 3143 P 07 571 8003 (24 hours) • F 07 577 9320
This letter serves to verify the results of a combined project carried out over a 6 month period from May to October 2011 between Eco-Tabs NZ and Western Bay of Plenty District Council. We used Eco-Tabs to remove settled sludge from one section of our lined wetland ponds at one of our wastewater treatment plants and can confirm that the product has fulfilled all expectations in respect of:
- Confirmation of Eco-Tabs ability to degrade settled sewage sludge effectively
- Monitoring final effluent for any signs of deterioration or improvement in effluent quality resulting from the treatment.
After two months of treating we observed a definite improvement in water clarity in the test pond as well as reduced surface scum and no oily layer on the surface.
In summary at the end of treatment we had the ponds surveyed and from the results of the sludge survey it is clear that the application of Eco-Tabs brought about a sludge density decrease up to 50%.
Based on the independently derived results we concluded that Eco-Tabs effectively removed organic sludge. We have decided, based on this result, to treat the entire treatment plant starting with the inflowing raw sewage. We are expecting the entire plant to benefit from this approach as there should be not only a reduction of already accumulated organic sludge, but no sludge build up in the long term.
Yours faithfully,
Ulrich Glasner
Utilities Asset Manager
Peter Edwards
Operations Manager
