PITTSBURGH--(BUSINESS WIRE)--Evoqua Water Technologies (NYSE: AQUA) has been selected by Severn Trent
Water and its design and construction partner, Costain, to supply
Evoqua’s BioMag® ballasted clarification system to both increase output
and reduce phosphorus at the Rugby Sewage Treatment Works. Rugby will be
Europe’s first wastewater treatment plant with a permanent installation
of Evoqua’s ballasted BioMag system settling technology, which has been
proven in facilities throughout the United States for more than seven
years.
Ed Ruswa, Senior Process Design Engineer for Severn Trent Water says,
‘’Rugby is a thriving market town and in order to improve the
waterbodies in its catchment, a significant enhancement to the treated
water quality and capacity for growth is going to be delivered by
upgrading the existing sewage treatment works using the BioMag system.
Conventional treatment methods would have required a large expansion at
a higher cost, however by transferring this innovative technology from
North America and following UK water industry funded pilot trials, the
BioMag system will help Severn Trent deliver its customer funded
objectives and continue to offer the cheapest customer bills in the UK.”
The BioMag system uses the addition of magnetite – fully inert, iron ore
particles – to enhance the existing activated sludge process. As a
result, the settlement across the existing final settlement tanks is
greatly improved even with the predicted 25% increase in flow
anticipated at the works. For communities that face challenging
wastewater characteristics due to industrial discharge or dense
populations, the BioMag system is the ideal solution. The BioMag system
will help Severn Trent Water reduce both total suspended solids and
phosphorus before the treated water discharges into the River Avon.
Algal blooms and poor river ecosystems are triggered by high levels of
phosphorus in the river. To combat the blooms and restore water bodies
to “good” status, the UK Environment Agency’s National Environment
Programme (NEP) is imposing low phosphorus limits on many wastewater
treatment plants, including Rugby. The introduction of the BioMag system
will significantly decrease the amount of phosphorus that the works
discharges, making this an important step to achieving compliance with
the new phosphorus limit of 0.4 mg/l of total phosphorus (T-P).
‘’For Rugby, the new BioMag system will be installed to combat both the
new phosphorus limit and the expected increase in the local population,
which means that the plant will be able to treat more effluent waste to
a better quality,’’ explains Simon Radford, UK Sales Manager of Evoqua’s
Wastewater Treatment business. ’’As an alternative to adding more Final
Settlement Tanks, the BioMag system allows the user to get more out of
their existing assets at a fraction of the cost of such major new civil
structures.”
Following installation of the BioMag system it is expected that the
Rugby plant will process the 25% increase in flow to a predicted 60,000
m3/day by 2028.
About the BioMag System
The BioMag system can achieve up to 2-3 times the throughput of existing
conventional activated sludge plants by improving settlement and
allowing the user to run at higher Mixed Liquor Suspended Solids in the
Biological tanks of the activated sludge process. BioMag systems improve
settling, allows increase in throughput, gives better effluent quality
and all within the existing asset making it an ideal process for
expansion of existing plants. For more information, visit www.evoqua.com/BioMag.
About Evoqua
Evoqua Water Technologies is a leading provider of mission critical
water treatment solutions, offering services, systems and technologies
to support its customers’ full water lifecycle needs. Evoqua Water
Technologies has worked to protect water, the environment and its
employees for more than 100 years, earning a reputation for quality,
safety and reliability around the world. Headquartered in Pittsburgh,
Pennsylvania, Evoqua operates 160 locations in eight countries and, with
over 200,000 installations and 87 service branches, is a leader in North
American industrial, commercial and municipal water treatment, serving
more than 38,000 customers worldwide.