After a 17-year run, a plant’s UV disinfection system was limping toward the finish line. The city needed to identify a replacement UV system that fit into the same channel, offered lower power consumption, and contained a practical ease of maintenance to reduce the amount of labor consumed on the equipment. The new system requires dramatically less power to run while simultaneously streamlining upkeep.
The Bordeaux region of St. Thomas had a pressing need for a wastewater treatment plant that produces high effluent quality. Its existing plant was old and did not meet regulation nor industry standards. Fluence, together with its partner SD&C Inc., built an MABR-based wastewater treatment plant from the ground up, utilizing whatever existing pieces of equipment could be used from the old plant.
Fairmont, Minnesota, known as the City of Lakes, is located in Martin County in southern Minnesota. The city’s water treatment plant serves a mix of customers including approximately 3,900 residential taps, 500 commercial and 17 industrial customers. Looking to the future, Fairmont city leaders began to investigate upgrading the city’s water treatment plant in 2010. The existing plant had been in operation for well over 70 years and relied on gas chlorine for disinfection.
Storey County, NV, just southeast of Reno, needed to replace an outdated wastewater treatment plant that serves the historic communities of Virginia City and Gold Hill. The new site was on the side of a hill, presenting challenges for the design of the plant and the orientation of its processes. Also, the new plant area was entirely within a district on the National Register of Historic Places. Read the full case study to learn how the new modular design allows for an efficient wastewater treatment solution.
When the Cobb County-Marietta Water Authority (CCMWA) anticipated the need to upgrade the Hugh A. Wyckoff water treatment plant, they turned to granular activated carbon (GAC) technology after vetting several alternatives. The plant, a wholesaler in a two-plant system, processes up to 72 million gallons per day and serves about 350,000 people. Comprising of Wyckoff and the James E. Quarles treatment plant, CCMWA is the second largest water provider in Georgia.
The Hagerstown Wastewater Treatment Plant in Maryland incorporated several plant modifications, one of which was the conversion of their disinfection process from the use of ozone to UV.
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.
Installing and operating an ozone oxidation system for wastewater remediation at a gold mine located in a remote region of Alaska is full of challenges.
When Plainfield, IN, needed to double their permitted capacity from 2 MGD to 4 MGD at their South wastewater treatment plant, they faced a dilemma. Like most treatment plants, space is at a premium, and compact design was needed not only for the current expansion, including the addition of a post aeration structure, but to preserve as much room as possible for projected future expansions.
The Honouliuli Water Recycling Facility (WRF) includes filtration and UV disinfection to treat to Class R-1 reuse standards for various uses, including irrigation. In order to maintain high-level reuse, simplify maintenance, and reduce operation costs, the Honolulu Board of Water Supply decided to replace its 15-year-old TrojanUV4000™ with a TrojanUVSigna™. With the high cost of power in Hawaii, this system upgrade will provide significant power savings (estimated at 75%) and will enable equipment payback in less than 2.5 years.
In 2016 Hillsborough County Public Utilities, a forward thinking organization, initiated the first direct potable reuse pilot project in Florida. In its efforts to utilize 100 percent of its reclaimed water, the progressive utility created a successful program to effectively suspend surface water discharges. Read the full case study to learn more.
The Hudson River, in the Capital District of Albany, NY, is a popular recreational area for boating, swimming and fishing. Unfortunately combined sewer overflows following storm events and snow melt from sewer systems dating back to the 1800’s were causing increased fecal coliform counts which in turn resulted in health alerts and limited access to the river. After considering several alternatives, the Albany County Sewer District selected a Wedeco Duron 60i2-2.5X4, with high power Ecoray 600W lamps, for their disinfection system.
For a low-cost method of measuring disinfection efficiency and contamination levels, Cole-Parmer presents the new GreenLight® Environmental Bacterial Count Systems.
Clearford Water Systems Inc. (“Clearford” or the “Company”) held its Annual General Meeting of Shareholders recently in Ottawa.
The Indian Water and Wastewater treatment market is at growth phase and is expected to reflect high growth rate for the next five years.
Pulsafeeder, a global leader in fluid handling technology since 1942, today announced the availability of “Just-in-Time” standard Chemical Feed Systems for its Eclipse Series and PulsaPro Series dosing pumps
Aquionics, a leading provider of ultraviolet (UV) disinfection technology is to unveil a new US EPA and NWRI-validated energy efficient UV system for municipal waste water and reuse water applications at WEFTEC 2017
Mazzei Injector Company, LLC, the largest manufacturer of high efficiency Venturi injectors, is pleased to announce the promotion of Geoffrey Whynot to the position of President.
Customers, contractors, engineers and project managers now have on-the-go access to information on AMERICAN Flow Control (AFC) products with the introduction of the AFC Valve and Hydrant Digital Manual.
MIOX Corporation, the industry leader in on-site chemical generation technology, announces it will showcase a new technology for produced and flowback water disinfection at the Society of Petroleum Engineers (SPE) International Symposium on Oilfield Chemistry in The Woodlands, TX on April 8th and 9th, 2013.
Rivertop Renewables, a Montana-based novel chemicals company, announced that it has released its first technical bulletin for Waterline Cl, the company's sustainable, high-performing corrosion inhibitor for use in industrial cooling water systems.
Evoqua Water Technologies has been selected by Severn Trent Water and its design and construction partner, Costain Ltd., to supply Evoqua’s CoMag ballasted clarification system to reduce phosphorus at the Finham Sewage Treatment Works in Coventry.
BioLargo Inc. (OTCQB:BLGO), an innovator of sustainable science and technology and a full-service environmental engineering company, announced today the completion of a study that demonstrates the effectiveness of its Advanced Oxidation System (“AOS”) water treatment platform for treatment of poultry wastewater and municipal tertiary wastewater.
AquiSense Technologies has announced closing Series A funding to become one of the world’s first companies to focus exclusively onwater, air, and surface treatment products using UV-C LEDs.
As the United States forecast a surge in energy demand and consumption over the winter period, Biwater and NeoTech Aqua team up to highlight their energy-saving work in California, centred on a new and innovative water reuse demonstration project with the Padre Dam Municipal Water District.
The Central and Eastern European municipal water and wastewater treatment chemicals market offers growth opportunities for a range of chemicals. Demand will be propelled by intensifying legislative pressure from the European Union, supported by government funding, aimed at promoting environment-friendly, water- and energy-saving technologies.
Chemists have found a way to use sunlight to purify wastewater rapidly and cheaply, and to make self-cleaning materials for buildings.
ClorTec systems have been a proven, cost-effective, reliable and safe alternative to chlorine gas and bulk sodium hypochlorite since 1995.
Aqua-Aerobic Systems, Inc. (Loves Park, IL) officially introduced the AquaNereda® aerobic granular sludge system during the company’s national training seminar on April 6, 2017.
Wastewater disinfection takes place after primary, secondary and sometimes tertiary wastewater treatment. It is typically a final step to remove organisms from the treated water before the effluent is released back into the water system. Disinfection prevents the spread of waterborne diseases by reducing microbes and bacterial numbers to a regulated level.
A variety of physical and chemical methods are used to disinfect wastewater prior to it being released into natural waterways. Historically, the chemical agent of choice for municipal wastewater treatment has been chlorine, due to its disinfecting properties and low cost. However, the rising cost of chlorine and concerns that low chlorine concentrations can still be toxic to fish and other wildlife, has given rise to more physical methods of wastewater disinfection being adopted such as ozonation or ultraviolet (UV) light.
The use of ozone as a disinfection agent has the added benefit of increasing the dissolved oxygen content of the treated wastewater. However, because the ozone has to be generated, ozonation can require prohibitive up-front capital expenditure compared to traditional chlorination. UV disinfection has been growing in popularity as a wastewater disinfection method, in large part because of the life-cycle economics of the equipment and the fact that, like ozone, there is no toxic residual.