Rep. of Slovenia Reference Letter - Biological wastewater treatment solution EKO GEA

3. ENGLISH TRANSLATION of Reference Letter – Slovenian Water Authority
Supplier: EKO GEA., Nejc Dordic, s.p. 18.09.2008
Ul. M. Grevenbroich 13
3000 CELJE
Company Registration Number: 3102297000
Tax ID Number: S183131833
Supplier Agent and Signatory of the contract: Nejc Dordic
Per your request for a report on microbiological waste water treatment using EKO GEA’s product, the
undersigned validates the following:
PRODUCT VALIDATION REFERENCE
We certify that that our plant in Kasaze utilized the above service in 2008 to implement our programme
for microbiological treatment of waste water. We confirm that the services provided have been
professional, high quality and in accordance with Dolič contract.
The company EKO GEA, Nejc Ðorđic, delivered the biological algae preparation to the WWTP Kasaze
monthly.
The dosing procedure (Koločino post dosing and pre-treatment) were determined based on professional
assessment of our processes, with full knowledge of wastewater treatment technology and appropriate
application of the EKO GEA preparation.
Operation of the treatment plant was extremely improved by using the preparation. Improvements
include: Increased cleaning effect, reduced sludge quantity by approx. 40%, reduced odour from open
lagoons, reduced growth of filamentous algae, and reduced suspended solids.
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Due to use of the algae preparation, overall operating costs were reduced at Kasaze plant mainly due to
reduced waste sludge quantities, but also, the reduction in lagoon odour prevented the need for
additional treatments and the associated costs.
Place and date:
CLIENT: Public Utility Company Žalec (http://www.jkp-zalec.si/index.html )
Signed: (on original document)
Director: Matjaz Zakonjsek , Engineer
Stamp: (on original document)