Filter Media Optimises Treatment for Norwegian Fish Farm
Jul 05, 2022
An onshore fish farm in Norway has introduced a new type of filter media to reduce the size of the MBBR required in its water treatment process. Warden Biomedia’s managing director, Mark Barrett explains the advantages.
The RAS plant comprises two 15m fish breeding tanks, each with a water volume of 780m3; a water treatment system; a feeding system; an energy system for temperature control and a plant for the treatment and handling of sludge. The water treatment system integrates two-step particle separation, a moving-bed biofilm reactor (MBBR) for removal of total ammoniacal nitrogen (TAN) and a two-step carbon dioxide removal process.
Warden Biomedia’s Bioflo filter media was selected for use in the MBBR because Sterner AS wanted to reduce the volume of the planned reactor. By replacing the standard biofilm carriers, which have a specific surface area of 650m2/m3, with a higher surface area media, the rate of oxidation of TAN into nitrate nitrogen (NO3-N) could be optimised.
Bioflo is a durable, rugged and highly efficient media designed to provide a large protected surface area for the biofilm and optimal conditions for bacteria culture growth. The media’s large apertures allow wastewater to pass freely, which helps maintain a thin and healthy biofilm.
Sterner AS and Eidesvik Settefisk AS say they are pleased with the results of the installation. Sverre Amrani, technical sales manager, Sterner AS said, “Selecting the right media is never an easy task. With Warden’s extensive knowledge of, and expertise in, filter media, we were able to select the most appropriate media for this plant. With their help we have been able to meet our targets.”
More News and Articles
Aug 11, 2022
WPL has been granted a patent for its cutting-edge WPL Hybrid-SAFTM process technology. The patented technology employs a submerged moving-bed, fixed-film reactor which can treat wastewater with greater energy efficiency compared to traditional submerged aerated filters (SAFs), in a tighter …
Aug 11, 2022
Awarded more than £700,000 from the Water Breakthrough Challenge Catalyst Stream, Treatment-to-Tap seeks an industry watershed by supplementing a tech rollout with collaborative data analysis and behavioural science to build trust in tap water.
Aug 10, 2022
Water sector specialist MWH Treatment has been awarded a place on Severn Trent’s AMP7 (regulatory asset management period 2020-25) framework for both design-and-build and build-only water and wastewater treatment projects. The agreement extends an existing 20-year relationship and MWH Treatment …
Aug 09, 2022
For the rehabilitation of a drinking water pipeline in the district of Aalen, 200 km north-east of Munich, Germany, the DENSO Group Germany protects weld seams from corrosion very quickly and efficiently using a new laying method that floats in …
Aug 08, 2022
With construction work being carried out in depths up to 30 metres in the centre of the city famous for the Golden Gate Bridge, an enormous building structure is being realised. When completed, the Chinatown Subway Station will form the …
Aug 05, 2022
Development for the American Biotech company
Aug 04, 2022
The Construction Site Determines the Installation Technology: Light, Steam, Hot Water or Ambient Temperature
Which curing method should ideally be used in the context of rehabilitation projects in building and site drainage? The market for the rehabilitation of building and property drainage is currently developing dynamically. The complexity of construction sites in particular places …
Aug 03, 2022
100 Years Lifetime of Polyethylene Pressure Pipe Systems Buried in the Ground for Water and Natural Gas Supply
TEPPFA and PE100+ Association have identified the need for explaining the difference between the design point at 20 degree/50 years and the expected life-time of PE80 and PE100 pressure pipe systems. Research, extrapolation studies and reports on dig-up pipes in …
Aug 02, 2022
United Utilities is rolling out the biggest “listening” project of its kind in the world in a bid to tackle water leakage. The North West water company is installing around 100,000 ‘acoustic’ loggers over the next two years on its …
Aug 01, 2022
A dense pipeline network spanning over three million kilometers is the global backbone of industry and commerce. To keep supply stable, innovative pipeline companies are constantly expanding the network and making it denser even in sparsely populated places. In the …
Jul 29, 2022
Surface heating and cooling using plastic pipes is being highlighted at the moment as it is helping facilitate a greater uptake of renewable heat sources and is proving highly energy-efficient in our increasingly energy-aware climate.
Jul 27, 2022
Wastewater treatment specialist WPL has won a contract to provide onsite wastewater treatment at a holiday park in Cornwall. The underground installation at Juliots Well in North Cornwall will replace the existing septic tank and includes a WPL HiPAF (high …