cooling water Articles
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Water Temperature Monitoring - Minimise the risk of bacteria
Water temperature testing is a key component in water chemistry. By testing it, we can observe several things: Metabolic rates of an organism Dissolved oxygen levels Rate of photosynthesis Identification of potential bacteria such as Legionella The water temperature change can be caused by natural phenomena such as outdoor weather, groundwater inputs of anthropogenically caused by the ...
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Beneficial Reuse Applications
Beneficial Use Recycled water can be used for a wide range of beneficial purposes if treated to a quality which is fit for the intended purpose. Urban, Residential, Commercial and Municipal Use of Recycled Water Residential and commercial uses of recycled water include: Irrigation of sporting fields and golf courses, public open space and landscaping Residential garden watering ...
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ACTIFLO® Clarifiers are Heart of Antioch, CA Recycled Water Facility
Due to a number of economic and ecological factors, the California State Water Resources Control Board requires power plant developers to evaluate the use of recycle water for cooling tower needs. For this reason, Calpine (a power plant developer) formed a public-private partnership between itself, Bechtel Enterprises and the Delta Diablo Sanitation District (DDSD) to build a new recycled water ...
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Preventing Rust Formation with Electronic Water Treatment
The growing demand for water for industrial applications, power production and water supply has resulted in an increasing need for water treatment. The water used in industry comes from a range of sources such as rivers, lakes, wells and oceans and contains dissolved and suspended solids. In addition the industrial world has to reuse water which in turn causes it to be highly concentrated in ...
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Vehicle assembly building, Kennedy space center
Situation: In January of 2000, Zentox Corporation replaced the existing ozone treatment system on the Vehicle Assembly Building (VAB) and Launch Control Center (LCC) cooling towers with a state-of-the-art ozone water treatment system that is centered on the Clean Streams™ Ozone Transfer Process. The cooling towers, a launch critical system located adjacent to the VAB, had been on ozone ...
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Case study - Advanced
This rainwater system does double duty, providing pressurized irrigation water while simultaneously aiding the efficiency of the building’s rooftop cooling system. Project: AdvancED Location: Alpharetta, GA Application: Landscape Irrigation and Evaporative Cooling System(s): 30,000 Gallon Underground Tank w/ H2 Rainset The rainwater harvesting system at the AdvancED corporate headquarters ...
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Using IoT to Stop Saboteurs, Save Water and Make Money
Griswold Water Systems explains how they modernized their business in an old-school industry and realized unexpected benefits along the way. The Internet of Things often raises security concerns for businesses, but for Griswold Water Systems (GWS), connectivity offered a security solution -- namely, a way to make sure the competition wasn't sabotaging its equipment. Griswold's industry -- ...
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Case Study: Iron Foundry
The foundry recycles engine blocks to make iron pipe. They have a 350-gpm closed loop water reuse system that is used to cool the molds as part of the manufacturing process. The facility was using a coagulant and a flocculant to try and reduce the solids carryover from their clarifier. The solids in the reuse water were building up in their system filters causing intermittent downtime (downtime ...
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Project - 1.4 MW, CA
Year: 2022 Running Gear: 1 horizontal shaft Francis turbine with synchronous generator Scope: Replacement of control system Constructed in the 1980s for a city water management agency in southern California, this hydroelectric power plant has the somewhat unique distinction of being located in a desert. This is the first plant PHT has ever visited where the water source supplying the ...
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Legionnaires’ Disease – Not just cooling Towerst
The Spread of Legionella Bacteria Through Cooling Towers The much-publicized outbreak of Legionnaires’ Disease in New York City from cooling towers is not the only way Legionella Bacteria can grow and infect humans. Yes, cooling towers are a very likely place where Legionella pneumophila can propagate and infect humans. First, they are in an ideal environment for the Legionella bacteria to ...
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Grey water recycling for Internationally Renowned Merchant Bank
New Nomura building water recycling system passes the test of time. One Angel Lane, the iconic new European headquarters of Nomura in the City of London, has a comprehensive grey water and rainwater water combined system providing 100% of water for toilet flushing on the first five floors of this eleven floor building. Installed by Aquaco in June 2008, the system is working to the full ...
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Rethinking Big Water - Is It Time For A New Approach To Municipal Water Infrastructure?
Las Vegas has long served as a stereotype of human excess: gambling, drinking, sex, all-you-can-eat buffets. But the latest chapter is playing out away from the Strip, in the part of the valley where two decades of booming development have swelled the population to 2 million residents who rely on a dwindling water supply. Ninety percent of the southwestern U.S. city’s drinking water comes ...
By Ceres
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Softeners for Shell Netherlands - The Netherlands, 1.000 m3/d - Case Study
Project Description: Lenntech has been awarded a contract for the engineering, manufacturing and assembly for 2x 100% duplex water softening system for the Shell headquarters in The Hague city in the Netherlands. The softened water is used for the cooling towers in the building. The water softening system is equipped with top brand instrumentation and equipment. The system is completely from ...
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Energetic and exergetic analysis of a commercial ammonia?water absorption chiller
The results of an energetic and exergetic analysis of a commercial water/ammonia air-cooled absorption chiller with a cooling capacity of 10 kW are presented and discussed. The comparison with a conventional-single effect chiller operating under the same conditions shows that to reach similar performances to those of pre-absorber equipped installation an additional heat transfer area in the ...
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Developers Build Water Reuse into Commercial Real Estate
Recycling water is becoming more practical as technology improves and governments provide incentives Industry has already discovered the value of water reuse for managing water costs, ensuring water supplies, and demonstrating a corporate commitment to sustainability. Now, commercial real estate developers are increasingly reaping the same benefits in their office buildings. Reuse systems in ...
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Evidence Shows Need to Address Pathogenic Bacteria in U.S. Drinking Water Systems
Legionnaires’ disease is on the rise. Unfortunately, efforts to prevent Legionnaires’ disease to date have focused on building water systems rather than the municipal water supply. Building water systems are too far downstream to correct the problem, and, as a result, these efforts have been ineffective in curbing the incidence of legionellosis. It is unrealistic to place on building ...
By Evapco Inc.
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Freezing Temperatures Could Place Commercial Properties in Hot Water
With another frigid winter on the way, frozen cooling tower valves and pipe leaks are likely to wreak havoc on commercial property water usage. “As temperatures dropped below zero last year, we began receiving dozens of calls from property managers about their cooling tower’s solenoid valve freezing in the fill position and water continuously flowing out,” states David Taylor, ...
By WaterSignal
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ASHRAE Standard 188P: Prevention of Legionellosis Associated with Building Water Systems
For Presentation at the AWT 2011 Convention and Exposition The American Society of Heating, Refrigerating and Air-conditioning Engineers (ASHRAE) has developed a proposed Standard Practice that specifies what is required to prevent legionellosis associated with building water systems. Standard 188P is a “Practices” standard – not a “Design” or “Method/Measure ...
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Why a Legionella Risk Assessment Is Important
Legionella Testing Legionella is an aquatic organism naturally found in water supplies such as rivers, streams etc. When the water has been extracted from the organic sources, it's treated to ensure that any bacteria that exist is murdered. But on rare occasions, bacteria can survive and may replicate quite quickly. Legionella are seen in the atmosphere through the flow of contaminated water that ...
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A Look at the Impact of Proposed Water Standard to Prevent Legionnaires` Disease
From the standpoint of water treatment industry experts, failure to prevent legionellosis (or Legionnaires’ Disease) is the most significant water treatment problem today. Essentially every case of the disease is the result of exposure to inadequately managed building watersystems, and both utility and potable water systems can be the source of the hazard (i.e., Legionella bacteria). In ...
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