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Safeguarding the city's water source with ultraviolet disinfection
The Water Division provides continuous high quality water to approximately 43,500 that call Moline home. It utilizes the Mississippi River as its source to treat, pump, and meter water to over 17,000 homes and businesses. The variable quality of the water in the Mississippi source poses unique treatment challenges to the Water Division. Moline’s LT2 water study revealed that significant levels of Cryptosporidium are periodically present in the source water.
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San Diego plant cuts THM levels in half
The 34 MGD Otay Water Treatment Plant in San Diego, California serves a population of approx. 200,000. The plant receives raw water from two sources - imported water from the Colorado River and runoff from three local reservoirs.
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SCV Water Agency selects Xylem vessels & media for PFAS removal
Santa Clarita is located about 35 miles north of Los Angeles. The Santa Clarita Valley Water Agency (SCV Water) services nearly 74,000 customers and obtains about 50% of its drinking water through local groundwater aquifers. Positioned behind the William S. Hart community baseball and softball fields three two-vessel systems have been installed to remove PFAS from drinking water.
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SES Water partners with Xylem for gas disinfection solution
SES Water supplies 160 million litres of clean water daily to over 735,000 people in the UK across parts of Surrey, Kent West Sussex and South London. Westwood Water Treatment Works in Surrey is central to keeping its supply of water safe for local residents.
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Sunlight-blocking covers control algae, reduce operational costs
The Santa Clara Valley Water District (the District) manages an integrated water resources system that includes the supply of clean, safe water, flood protection, and stewardship of streams on behalf of Santa Clara County's 1.8 million residents. The district effectively manages 10 dams and surface water reservoirs, three water treatment plants, an advanced recycled water purification center, a state-of-the-art water quality laboratory, nearly 400 acres (162 hectares) of groundwater recharge ponds, and more than 275 miles (443 km) of streams.
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Ultraviolet disinfection safeguards the City of Berea’s water supply
First settled in 1836, the City of Berea, Ohio gained acclaim as being the source for dimensioned stone formed from locally quarried sandstone, notably grindstones. The grindstones were shipped to Cleveland by oxcart and, as demand grew, later by a purpose-built railroad to the Big Four Railroad across the Midwest. Now many of the former quarry pits are better known as Baldwin Lake, Wallace Lake and Coe Lake.
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Safety and design are top priorities for water supplier
The water supply system in Zurich supplies approx. 850,000 people in the city of Zurich and in 67 nearby municipalities with high-quality drinking water at all times. On average, 151,200 m3 of water are consumed each day, the entire water supply network is 1,542 km long (Figures: 2010).
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Southern California water utility consults Xylem for disinfection of potable water
Located in Southern California, this water utility uses wells to store water. These same wells are also used for fire protection. which is especially critical during the summer months. The supply covers about 10,000 customer connections with chloraminated water for residual disinfection, with chlorine and ammonia boosting in various locations.
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Stillorgan Reservoir disinfection upgrade
Whilst residual chlorination is relied upon to provide protection of drinking water in distribution systems, it is increasingly being supplemented by ultraviolet (UV) irradiation as a primary disinfectant for drinking water treatment. As a chemical-free process it avoids many of the issues associated with hazardous oxidising disinfectants and does not generate disinfection by-products. It is also effective against microbiological pollutants such as protozoa, that are resistant to chlorine.
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Temporary treatment of drinking water for a municipality
The consulting engineer for a municipal water utility contacted Carbonair to solve a problem that their client was having with several of its drinking water production wells. Low levels of Vinyl Chloride (VC) were detected in several of its drinking water wells. They needed to treat this water on a temporary basis until they could either construct new wells or build a larger permanent treatment plant to handle the problem.
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Updating London’s drinking water network
A UK water supply company serves a population of approximately 675,000 consisting of homes and businesses in Surrey, Sussex and Kent and is a key part of London’s drinking water network. The largest works in Kent, which takes raw water from a reservoir that is recharged in winter by abstraction from the River Eden. The original works capacity was 35Ml/d and it is currently undergoing a phased uprate.
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Upgrading to a new cost-effective disinfection solution
The Weaverville Community Services District (CSD) is a publicly owned municipal water agency located in Weaverville, California. The facility needed to retrofit an existing building and switch from a gas feed system to an onsite hypochlorite system. The conversion from gas to hypochlorite is a trend being seen in many Northern California districts as regulations on chlorine gas increase.
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UV disinfection ensures compliance and improves water quality
Irish Water was created by the Irish Government in 2013 and supplies drinking water to the whole of the Republic of Ireland. The company is investing over €65 million as part of their National Disinfection Programme involving the upgrade and standardisation of disinfection systems currently installed in over 800 sites including water treatment plants, pumping stations and reservoirs.
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Vermont town of 450 removes PFOA from drinking water well
The source of the contaminated water was located approximately 250 meters away from the municipal well, at a former industrial site. Upon learning of the elevated test results, the state issued a “do not drink” order to the 450 residents served by the municipal water supply until the water source could pass quality testing again.
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Water agency removes arsenic from groundwater supply
A public water agency in California contacted Evoqua 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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Water plant removes manganese and improves turbidity
This 10 million gallons per day drinking water plant gets its raw water source from a 151,000 acre-feet reservoir situated at an elevation of 5430 ft. The water intake is through a tunnel at a depth of 200 feet. The intake does not have provisions for the withdrawal of water from multiple levels in the reservoir.
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Water plants merged into a united plant with two pumping plants
Wassergewinnung Essen (WGE) was founded in 2002 as a co-operative group between Essen Public Services and GELSENWASSER. At the Ruhr in Essen, the company is focused on procurement, extraction, treatment and supply of drinking water and then delivering to its partners.
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Water works modernizes and upgrades treatment facility
The German Echthausen Water Works is one of eight water works of Wasserwerke Westfalen GmbH, located in Dortmund, Germany. It was built in 1942. Wasserwerke Westfalen is a subsidiary company of both Dortmunder Energie- und Wasserversorgung GmbH and Gelsenwasser AG, and is the largest producer of drinking water in the German state of North Rhine-Westphalia.
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Providing a system with budget and schedule constraints
Xylem supplied additional filters, UV sterilizers, pumps, and refurbishment of the existing equipment that was necessary to meet water quality requirement for this building, as well as provide a guaranteed system. The complete system includes pretreatment, reverse osmosis, service deionization, UVs and polishing filters.
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Silanna Semiconductor turns to Xylem for world-class water solution
Silanna Semiconductor is an Australian company specialised in the design and manufacture of advanced semiconductors. It has established itself as a market leader, providing power control and UVC LED semiconductors to the communications, space, defence, medical, and consumer markets. With dedicated offices in North America, Europe, Asia, and Australia, the company maintains a global presence and ready access to a range of markets and industries.
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Water One® WX services improves operational efficiency for microelectronics manufacturing
At a Midwest printed circuits manufacturer, achieving optimal water treatment efficiency became a critical concern. The 80,000 square foot facility faced the constant challenge of promptly detecting disruptions in their treatment processes, while also striving to streamline operations, reduce costs, and maintain high product quality.
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Mine facility lowers metal levels in discharge
A Minnesota mine reduced copper and cobalt in its discharge using wastewater ion exchange, achieving compliance without chemicals and adapting to seasonal flow increases.
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Mobile equipment helps mining operation meet metal limits
In order to expand operations and maintain a water balance in South Carolina’s wet climate, Nevada Goldfields’ Barite Hills gold mining operation required a treatment plant to handle its wastewater. At this mining site, the company extracts gold from soil using a high pH cyanide leaching solution. The process generated large volumes of cyanide and metal laden wastewater, which they had been storing on-site.
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Soil and groundwater remediation
Soil and groundwater remediation projects often call for treatment of groundwater, soil vapor extraction condensate, soil vapor and other liquid and vapor streams for removal of volatile and semi volatile organic compounds. Xylem's Carbonair has provided thousands of STAT Low Profile Air Strippers, liquid phase and vapor phase carbon vessels for remediation systems over our 30 plus years in business.