In the past several years, Aquarion Water Company had been monitoring their system’s THM formation and attempting to lower them through treatment and distribution system changes. Aquarion engineers decided that reducing THM formation in the Laurel High Service Clearwell at the Stamford Water Treatment Plant (WTP) would eliminate concerns of elevated THM formation in the distribution system served by the WTP.
In an effort to lower operational costs and extend the life of the dewatering centrifuge, operators in Springboro, OH, began to look at the polymer activation equipment in use at the plant. The Polyblend® M-Series emulsion polymer activation systems had been in steady operation for over 10 years. The equipment still performed reliably, but operators were interested in ways to achieve greater efficiency. They were aware of the new Polyblend® Magnum mix chamber, with its enhanced two-zone mixing energy.
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 Lariana Depur wastewater treatment plant in Fino Mornasco, Italy, treats wastewater from multiple textile manufacturers in the Como region, known as the heart of the textile industry. Since 1994, ozone has been used effectively as a polisher to remove the dark blue-purple color — the result of the dyes used in the textile dyeing and printing process — from the water.
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.
In April 2013, City Utilities started up three Microclor Model MC‐1500 skid systems, each rated at 1,500 pounds per day of free available chlorine.
Chatsworth Water Works Commission provides both water and wastewater services to the 5,000 residents of the cities of Chatsworth and Eton, GA.
The Cheyenne Board of Public Utilities (BOPU) operates the water and wastewater systems for the capital of Wyoming which has a population of more than 63,000. Located in the fast growing Front Range Urban Corridor, BOPU is challenged by growth, periodic water scarcity and aging infrastructure.
In 2017, a municipal water treatment plant was commissioning a new elevated tank. The tank had been cleaned, flushed and disinfected, but initial test results indicated unacceptable water quality. After a second cleaning, the tank was refilled and water samples were sent to the lab for follow-up testing.
The Metropolitan Water Reclamation District of Greater Chicago (MWRD) — of which the Terrence J. O’Brien Water Reclamation Plant (WRP) is part of — has made a number of upgrades to its treatment process in recent years.
Significant innovation had occurred in the 17 years since the TrojanUV4000™ was installed at the Murfreesboro Water Resource Recovery Facility. Advancements associated with system efficacy, simplified maintenance, and energy efficiency had been introduced, all of which correlate to cost savings. Such advancements can all be found in the TrojanUVSigna™ – the UV system that was selected for the upgrade.
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.
Fluence Corporation Limited is pleased to announce a new partnership and another contract award to deliver multiple MABR-based Aspiral™ smart packaged solutions in China.
After the completion of third-party validation testing under the National Water Research Institute (NWRI) Guidelines, TrojanUV recently announced that its open-channel wastewater ultraviolet light disinfection system TrojanUVSigna™ has received conditional acceptance from the California Water Board’s Division of Drinking Water (DDW) Recycled Water Unit (RWU).
NeoTech Aqua Solutions, the industry leader in High-Efficiency Ultra-Violet (UV) water treatment systems, is hosting its fourth Ultraviolet (UV) Technical Symposium at the Embassy Suites Hotel in the Chicago suburb of Lombard, Illinois, June 13 & 14, 2013, immediately following Ultrapure Water’s Pharma Conference.
Envirocleanse LLC, division of Charter Brokerage, a BERKSHIRE HATHAWAY company, recently signed an Agreement with CMB/Bocimar to install the patented inTank™ Ballast Water Treatment System aboard the Capesize Bulk Carrier, Mineral New York.
As recycled water is increasingly used as a vital tool to address shortages and insure conservation, the International Ultraviolet Association (IUVA) is spotlighting the fast emerging implementation of ultraviolet technology (UV) to water reuse, as a way to help achieve water quality treatment targets at the 2018 IUVA Americas Conference, February 26-28 2018, Redondo Beach, CA.
Mazzei Injector Company, LLC, a manufacturer of innovative injection systems and fluid processing solutions, is pleased to announce the addition to the Mazzei team of Jim White as Regional Sales Manager.
Evoqua Water Technologies LLC today announced that Ronald C. Keating has been named Chief Executive Officer, and will be appointed a member of the Board of Directors effective December 1. He joins the company from Contech Engineered Solutions LLC, where he has been President and CEO. At Evoqua, Mr. Keating succeeds Gary Cappeline, Interim CEO and AEA Investors LP Operating Partner.
PeroxyChem, a global leader in peroxygen chemistries, plans to construct a new peracetic acid (PAA) production facility in Memphis, Tenn. Construction will begin shortly. A formal groundbreaking was held on December 6 at the Maynard C. Stiles Wastewater Treatment Plant.
Pasteurization Technology Group (PTG), innovator of the only wastewater disinfection process that creates renewable energy, received the prestigious 2013 Innovative Technology Award from the Water Environment Federation (WEF), the worldwide industry association for water and wastewater professionals.
USP Technologies completed North America’s first bulk delivery of peracetic acid (PAA) on July 29th, 2015 to Metro Vancouver’s Northwest Langley Wastewater Treatment Plant located in Vancouver, BC.
Pasteurization Technology Group (PTG), innovator of the only wastewater disinfection process that creates renewable energy, announces the hiring of Graham McCarthy as Project Engineer.
UV ballast water treatment offers many advantages over electrochlorination. Yet there are also substantial differences between UV solutions. A growing number of customers, including MSC Cruises and Regent Seven Seas Cruises, are abandoning their selected UV treatment systems in favour of Alfa Laval PureBallast 3.
Clearford Water Systems Inc. (“Clearford” or the “Company”) held its Annual General Meeting of Shareholders recently in Ottawa.
A scientific breakthrough has taken an emerging biotechnology a step closer to being used to treat wastewater in the Developing World.
The treatment of raw water entering a Water Treatment Plant through a rectangular channel can seem like a daunting task with an added problem of low allowable pressure drop, injection of chemicals, and the desired homogenous blend of output downstream.
Purdue University researchers have developed a method to detoxify water with chlorine and ultraviolet radiation, which may provide new hope for water-stressed areas and help promote the reuse of wastewater.
NOV just completed a joint industry project with the aim to verify and demonstrate installation- and performance aspects of a full-scale Seabox subsea water treatment module in a realistic subsea environment.
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.