References

Hexa-Cover® references and case studies

Since 2004 Hexa-Cover® has been installed on wastewater, water storage, industrial, agricultural and oil and gas sites in more than 50 countries. These are selected projects and customer statements published by the manufacturer, Hexa-Cover A/S of Denmark.

Recent projects, 2025 and 2026

Date Location Application Purpose
Sep 2026 Callao, Peru 1,000 m² water storage Evaporation, algae
Aug 2026 Middle East region Two water reservoirs Evaporation, algae
Jul 2026 Aspropirgos, Greece Crude oil tank farm Odour, emission
Jul 2026 Poltava region, Ukraine 3,600 m² slurry lagoons Odour, emission
Jun 2026 Tashkent, Uzbekistan 6,000 m² mining water pond Evaporation
May 2026 Bendigo, Victoria, Australia Industrial wastewater Odour
May 2026 Chile 11,500 m² cyanide ponds Odour, emission
Apr 2026 Tokyo, Japan 2,000 m² drinking water tank Evaporation, algae, bird deterrent
Mar 2026 Tokyo area, Japan Digestate tank Odour, emission
Jan 2026 North Burnett, Queensland, Australia 1,100 m² sewage treatment plant Algae
Nov 2025 Ramtha, Jordan 8,800 m² wastewater treatment plant Odour, emission
Oct 2025 Sydney, Australia 1,700 m² water reservoir Evaporation, algae, bird deterrent
Sep 2025 City of Patterson, California, USA Municipal wastewater treatment plant Odour, emission
Sep 2025 São Paulo, Brazil 1,000 m² industrial wastewater Odour, emission
Jun 2025 Dammam area, Saudi Arabia 6,000 m² refinery wastewater Odour, emission
Feb 2025 Racecourse, Queensland, Australia 5,300 m² effluent pond Algae

Case studies

Raw water reservoir, Omeo water treatment plant, Australia

Problem: algae carried in from the creek and nutrients from ducks made the water hard to treat. The reservoir needed regular emptying and cleaning.

Solution: 108,000 Hexa-Cover® tiles poured into the reservoir in June 2017.

Result reported by East Gippsland Water: 95% less total algae biovolume, 98% less potentially toxic biovolume, 89% less E. coli and 57% lower turbidity, compared with the two years before installation.

Equalisation basins, Lake Berryessa wastewater treatment plant, USA

Problem: two concrete equalisation basins receiving screened raw sewage, with high odour and algae potential.

Solution: Hexa-Cover® was chosen in place of a planned aeration system because it cost less. Installation took less than an hour.

Result: no odour and no algae reported at the covered basins, while two uncovered basins at the same plant were covered in algae.

De-icing storage pond, Austin Straubel International Airport, USA

Problem: a 2,185 m² open pond for de-icing fluid and storm water needed a bird deterrent, protection of wildlife from glycol, and odour control.

Solution: Hexa-Cover® installed from big bags in less than four hours.

Result: the cover works as a bird deterrent and odour control, and the tiles rest on the pond slopes when the level drops.

Water supply dams, Western Australia

Problem: evaporation from open dams, which made water carting necessary.

Solution: Water Corporation covered dams with Hexa-Cover® in a trial with researchers from the University of Western Australia.

Result: evaporation reduced by 73%, saving more than 1.6 million litres of drinking water during the trial.

Customer statements

The Hexa-Cover® is poured in, and automatically they create a coherent cover and automatically adapt to changes in the water level. … We are very pleased with the choice of Hexa-Cover®.

Ture Kliving, Environment Responsible / Nordic Sugar A/S, Denmark

We are very happy with the performance of the Hexa-Cover®, the odor problem has disappeared.

O'Neills Sportswear / Dublin, Ireland

The installation and application of the Hexa-Cover® into open tanks couldn’t be easier. It is a very cost effective way of limiting the amount of sunlight into the tank which alleviates growth of algae.

Melbourne Water / Australia

We are very satisfied with the Hexa-Cover®. The Hexa-Cover® serve their purpose to reduce the amount of light in the water and thus plant growth in the pond, very well.

Hamburg Port Authority / Germany

… we have installed Hexa-Cover® and by doing this we have reduced the heat loss in the storage tank.

Henrik Thygesen, Coordinator Operations / Holbaek Spildevand A/S, Denmark. Sludge storage tank

Hexa-Cover® is a very effective tool to avoid growth of algae as the sun is blocked from affecting the water.

Sashimi Royal / Denmark. Sea water tank, in use since 2017

Full reference lists

The complete lists are published by Hexa-Cover A/S and updated several times a year.

Water and industry references (PDF) Agriculture references (PDF) Oil and gas references (PDF)

Latest from Hexa-Cover A/S

New installations and news from the manufacturer in Denmark, as they are posted.

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