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Leopold elimi-NITE® Powers Chesapeake Bay Renewal in Howard County, MD
Howard County, Maryland, has taken a leading role in restoring the Chesapeake Bay ecosystem through a $92 million upgrade to its wastewater treatment infrastructure. Central to this effort is the installation of Xylem’s Leopold elimi-NITE® 2.0 denitrification system, which significantly reduces nitrogen and phosphorus levels in effluent discharge. Combined with advanced UV disinfection and mixing technologies, the system's daily reductions include 37,000 pounds of suspended solids, helping to reverse decades of nutrient pollution and protect aquatic life in the Bay.
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Leopold Filterworx® performance filter system in Columbus, Georgia
The North Columbus Resource Facility recently completed a $12-million replacement of its settled water filtration, removing the existing Wheeler filters, their three-part media and 10-inch poured-concrete underdrains, which were no longer efficient. Prior to the filter rehabilitation, the utility’s backwash procedure consisted of a hydraulic-only backwash where the high-rate wash cycle lasted up to 20 minutes. Backwashing each dual cell filter used 150,000 to 200,000 gallons of water. The filters then operated up to an hour in rewash or filter-to-waste operation to reach the desired output of <0.09 Nephelometric Turbidity Unit (NTU).
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London Heathrow's network of 120 pumping stations needed a smart, energy efficient solution to address chronic clogging in aircraft toilet wastewater
Xylem’s Flygt Concertor, with integrated intelligence that uses sensor monitoring, self-optimising technology and adaptive hydraulics, was the perfect smart, energy-efficient processing method.
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Lower levels of iron in raw water improves mining production
A southern mining company was developing salt dome gas storage facilities that use water to mine salt from the domes shaping them so they can be used to store natural gas inside under high pressures. The raw water used for the mining process contained high levels of iron (5-8 ppm) resulting in equipment fouling and high maintenance costs.
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Major Brewery Meets Discharge Limits and Taps into Green Energy
Increased discharge surcharges and newly imposed limits on wastewater strength prompted Oland Brewery to rethink its treatment strategy. The company wanted to be environmentally responsible, so it investigated on-site wastewater treatment options. Since the brewery is located in close proximity to neighboring buildings, space limitations were very influential in the brewery's technology selection.
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Manufacturer of Baker's Yeast Rises Above Its Wastewater Challenges
AB Mauri was constructing a large, state-of-the-art yeast manufacturing plant in Veracruz, Mexico. The project included the need for a unique wastewater treatment facility. Sugarcane molasses used as the fermentation growth substrate for the yeast during production results in wastewater containing high concentrations of organic matter.
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Milk processing companies in South Tyrol are focusing on an ice water system using speed controlled pumps
The Milchhof Vipiteno dairy cooperative is one of the oldest in South Tyrol and one of the leading suppliers on the Italian yogurt market.
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Mobile Clarification Enables Coal-Pile Runoff Compliance
Evoqua Water Technologies was contacted by a leading global engineering, consulting and construction company, to provide wastewater treatment assistance during the final stages of commissioning at a power generation facility located in the southeast US. The station is a 665 megawatt generator which utilizes pulverized coal boiler technology...
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Mobile demineralization reduces refinery costs
A refinery in Northern California was unable to meet its desired boiler feed water silica specifications on a consistent basis. The higher silica levels led to an excessive blow down requirement in the boiler system. The higher blow down rates were significantly affecting the refinery's water, chemical, and natural gas costs. -
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