Documents
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Mobile water treatment eliminates iron level issues
This client operates a groundwater treatment facility at a Super Fund site where groundwater is pumped to a VOC stripper for the removal of TCE which is then re-injected into the aquifer. High iron levels in the groundwater caused fouling of pumps, pipes and well casings. This fouling threatened the reliability of the process in terms of flow.
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Municipal drinking water treatment
Municipalities are often faced with VOC contamination of their source wells. Chemicals like Vinyl Chloride and Trichloroethylene can leach into aquifers used as source water for municipal wells. When this occurs, in many cases the most cost-effective solution is to treat the water to remove the VOCs using air stripping, which has been established as a Best Available Control Technology BACT for this application.
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Optimizing a plant's high purity water system with new CEDI modules
High-purity water is essential for producing steam that will not scale turbine blades with silica, minerals, and other contaminants. A large power generating company in North America used a competitor's continuous electrodeionization (CEDI) system for that purpose.
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Orange County Water District Removes PFAS With 30 Systems
In February 2020, the California State Water Resources Control Board announced revised drinking water Response Levels for perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) in drinking water. The new Response Levels (RLs) were set at 10 parts per trillion (ppt) for PFOA and 40 ppt for PFOS. The previous RL was 70 ppt for a combined total concentration for the two contaminants.
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Our 15 most frequently asked questions on improving aquaculture
To help companies protect against waterborne infection and disease, Evoqua recently hosted a webinar dedicated to understanding and improving water quality in land-based hatcheries that you can watch here.
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Ozone Solves Listeria Problem
A fish process facility in Norway detected Listeria monocytogenes in their facility and contacted Trond Storebø of Naustor Technology, Evoqua’s partner in Norway. Within three weeks, Naustor had acquired one of Evoqua’s new PC Series ozone disinfection systems. The use of ozone has made the products safer, enhanced the shelf-life for the fresh produce and protects the company’s brand.
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Petcoke Storage Faces Challenge With Rainwater Discharge
A California petcoke facility used wastewater ion exchange to remove nickel and vanadium from stormwater runoff, meeting discharge limits and enabling compliant, scalable treatment.
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Thirsty work in Poland…
Quenching the thirst for quality pumps within Sokpol, a leading Polish drinks manufacturer
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Process control features to optimize energy efficiency and process stability
Before online instrumentation, process adjustments to biological activated sludge processes were made based on delayed results from laboratory testing. The introduction of online instrumentation to the process tanks improved the response time and allowed operations staff to make process adjustments based on real-time data.
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Propel Swim Academy Combines RMF and UV for Superior Water Quality
Propel Swim Academy is a three pool, 12,000 ft² facility located in South Riding, Virginia. This family friendly swim school is the only stand-alone facility in the South Riding area to feature three indoor pools. During planning, Propel‘s owner, Linda Stewart, focused on three primary goals: water quality, sustainability and a compact footprint.
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Public utility removes arsenic to control underground plume
A public water agency in California contacted Xylem to treat remove arsenic from a groundwater supply. They needed to achieve a 1 ppb effluent level from the treatment system, 90% lower than the current drinking water standard in California. In addition they needed to have the treatment operating within weeks.
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