Case Studies

Biological removal of manganese at Olofström (SW)

How an existing conventional sand filter was transformed in a Filtralite biofilter for biological removal of manganese.

Pilot project for micropollutants removal at Rodenkirchen, Cologne (DE)

Filtralite®, a filter media made of expanded clay, has been used within the biological-treatment ozonized wastewater as one of two test cleaning options in the "newly purchased" 4th purification step.

Filtralite® Pure denitrification biofilter at Formiche Alto (SP)

A Filtralite® Pure solution for denitrification achieves high performance and reliability combined with low OPEX and CAPEX

Removing and refurbishing biofilters in Annecy (FR)

How Filtralite® Clean material was drained, refilled and replaced in 3 biological filters.

A complete Filtralite® solution to retain and treat stormwater developed in Sweden

By combining two proven methods, Filtralite has, in collaboration with WEREC, developed a solution that provides effective removal of contaminants while providing storage capacity for stormwater

Ammonium and nitrate reduction with Filtralite® Pure in Niort (FR)

Created in 1996, the Niort Drinking Water treatment plant has successfully provided a nitrate-free water thanks to biological removal through a Filtralite® Pure filter bed.

Protecting the Pyrenees environment with Filtralite® Clean

Filtralite® Clean HR 3-6 has been installed in the first bio-filter stage of the Pas de la Casa Wastewater Treatment Plant (Andorra), replacing the old filter material to improve performance and reduce energy and water consumption.

Stormwater filtration and phosphorus removal In Örebro (SW)

Filtralite® Pure Mono-Multi in London (UK)

How Thames Water reinvented its fast sand filters

Vestfjorden (NO) Wastewater Treatment Plant (Veas)

At the entrance of the Oslo fjord, VEAS cleans wastewater from 600.000 Oslovians.

Bedrichov(CZ) Drinking Water Treatment Plant

A farewell to sand filters

Filtralite® helps to keep the Mediterranean clean (MT)

Filtralite® Clean is used in biological aerated filters in Ta’barkat's wastewater treatment plant in Malta.

Fredrikstad (NO) Drinking Water Treatment Plant

Fredrikstad Waterworks in southeastern Norway has an annual water production of 15 millions m3 and supplies the municipalities of Fredrikstad and Hvaler.

Biological removal of ammonia and manganese for Hong Kong (CN)

Process with reduced chlorine demand in Tai Po (Hong Kong)

Phosphorus removal in wastewater polishing filters (NO)

Upper Uvdal (NO) wastewater treatment plant includes a Filtralite® tertiary filter.

Filtralite® Clean improves wastewater treatment in Dalian (CH)

Filtralite Clean products support the biofilm for BOD, COD, SS removal and denitrification at Dalian's wastewater treatment plant, responsible for treating 120.000 m3/day.

Filtralite® Pure pressure filters at Beckton (UK) for pretreatment prior to desalination

In the new Thames Gateway Desalination Treatment Plant in Beckton, Filtralite® Pure HC 0.8-1.6 mm is used as filter media in 17 pressure filters as 2nd step of pretreatment before desalination.

Filtralite®Pure increases production at Palmachim desalination plant (IL)

Filtration velocity has increased from 7 m/h to 12 m/h and runtime between backwashes from 30 hours to 200 hours.