Case Studies

Nitrate removal at DWTP Wierzchowisko (PL)

Biofilters with Filtralite Pure Mono-Multi are used for nitrate removal.

With FILTRALITE®, the Pedraza drinking water production plant improved the elimination of Iron and Manganese, while increasing production

The drinking water production plant, which carried out two backwashes per day and per filter with sand-anthracite filters, only needs, with Filtralite®, backwashes once every two or three days.

Bedrichov(CZ) Drinking Water Treatment Plant

A farewell to sand 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

Filtralite® Clean at Kakolanmäki Wastewater Treatment Plant (Finland)

Filtralite removes half of the load of phosphorus and solid materials at Finland's third largest wastewater treatment plant.

Vestfjorden (NO) Wastewater Treatment Plant (Veas)

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

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.

Pioneer industrial air purification in Ełk (PL)

With Filtralite® Air expanded clay, the industrial plant has achieved stable performance of the biofilters.

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.

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.

Excellent results with Filtralite Mono Multi® at an industrial scale pilot in Llobregat (SP)

ATL started an industrial scale test in November 2018 in one of the 137 m3 sand filters of the Llobregat Drinking Water Treatment Plant. The objective was to validate, in situ, the operation of Filtralite® Mono Multi in comparison with sand filtration.

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

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

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® at the core of biofiltration in the Putatan II drinking water treatment plant

Filtralite® is an effective and ultra-competitive solution to eliminate ammonia from drinking water.

Phosphorus removal in wastewater polishing filters (NO)

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

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

New nitrate removal treatment step in Milan (Italy)

Biological denitrification is a very reliable and performant solution for drinking water treatment.

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.

Biological removal of manganese at Olofström (SW)

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

Improving hydraulic performance of the Kerbellec plant (FR)

Filtralite and sand 0.95 were compared during a couple of months. Study showed that run lengths increased by 2.5 with Filtralite

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.

Odour treatment filter in Bogense biogas plant (DK)

Applying Filtralite® Air in a biological odour treatment filter is a simple and effective solution, allowing nature’s own bacteria to handle the purification.

Filtralite® Pure is used to produce drinking water at the Jäniksenlinna water treatment plant

Sand and manganese-enriched media have been substituted by Filtralite, thus extending filter run lengths.

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.

Air purification at Novozymes Fermentation unit in Kalundborg (DK)

Quick and easy to implement Filtralite® Air 4-10 improved process and brought savings

Filtralite is used to manage strict discharge limits at Bekkelaget WWTP

Filtralite Clean MC 2,5-4 is used in a dual media polishing filter to reach an average discharge limit for phosphorous of 0.2 mg P/L.

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.

Two types of Filtralite® Pure filter beds at Gäddvik (SE)

Filtralite® Pure Mono-Multi is used both in rapid granular filtering beds for artificial recharge of groundwater and for filtering groundwater to produce drinking water.

Les Ponts de Cé (Angers), first plant in France with Filtralite Mono-Multi

Run lengths went from an average of 20 hours of filtration between two backwashes to up to 60 hours of filtration.

Stormwater filtration and phosphorus removal In Örebro (SW)

Waste Water Treatment Plant Galapagar-Torrelodones (SP)

Treating urban wastewater with Filtralite® Clean in a Natura 2000 area

Filtralite® at Beni Saf desalination plant: increasing production capacity and lowering OPEX

Replacement of sand by Filtralite® has shown to reduce productions losses due to frequent backwash, decrease water wasted for backwash and drop operating costs.

Filtralite® Pure Mono-Multi in London (UK)

How Thames Water reinvented its fast sand filters

Removing and refurbishing biofilters in Annecy (FR)

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