In late 2005, the City of Newberg, Oregon, decided to upgrade their water treatment plant disinfection process from gas chlorine to on-site hypochlorite generation (OSHG) in an effort to simplify operations and increase operator safety. The plant produced an average of 2.5 million gallons per day (MGD), with a peak capacity of 5 MGD.
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.
The water treatment plants (WTP’s) manager for the city of Midlothian, TX reports significant reduction in chemical costs, gaining new management control for their generation and feed equipment, and ending a pesky maintenance burden, by switching to three-precursor vacuum generator-feed, from batch-generator-pumping, for introducing chlorine dioxide (ClO2) into their 8 MGD plant #2. As a result, he plans to make the same change at their 12 MGD plant #1.
The Rahway Valley Sewerage Authority (RVSA), which operates a large wastewater treatment plant in New Jersey, embarked on a green co-generation waste-to-energy project to power a portion of its operations. The plant’s management team became interested in pursuing the gas-to-energy power co-generation system for both environmental and cost reasons.
MIOX Corporation, the industry leader in on-site chemical generation technology, announces it is an ISO 9001:2008 Certified Company. MIOX designs and manufactures equipment that generates oxidant based chemicals on demand.
WE&RF recently signed a contract with MWH Americas Inc. to advance the science of peracetic acid (PAA) disinfection, as well as to examine design, implementation, and operational considerations.
The U.S. Environmental Protection Agency (EPA) has awarded $849,601 to the Wyoming Department of Environmental Quality (WDEQ) to help protect human health and the environment through a Nonpoint Source Program Clean Water Act Section 319 grant.
The U.S. Environmental Protection Agency is proposing to modify a cleanup plan originally issued in 1996 to address soil and groundwater at the AVX property at the Olean Well Field Superfund Site in Cattaraugus County, Olean, NY.
Clearford Water Systems Inc. (“Clearford” or the “Company”) held its Annual General Meeting of Shareholders recently in Ottawa.
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.
Blue Earth Labs (http://www.BlueEarthLabs.com), a leading specialty water chemical research and development company building an innovative chemical platform to solve water infrastructure issues, today announced pHaze™, its non-hazardous formulation for neutralizing acidic runoff generated during chemical water treatment with the Company’s line of Floran® and neXt™ surface cleaning and filter rehabilitation products.
The Chemours Company (“Chemours”), a global chemistry company with leading market positions in titanium technologies, fluoroproducts and chemical solutions, announces that the world leader in chlorine dioxide (ClO2) water treatment has adopted a new name.
UGSI Solutions announced recently the acquisition of PAX Water Technologies was completed on Friday, January 27th.
Desalitech was named the winner of the 2016 Global Water Award for Breakthrough Water Technology Company of the Year.
Global Water Technologies (OTC Pink:GWTR) is pleased to announce it has signed a Memorandum of Understanding (MOU) with AquiSense Technologies, a Kentucky company that is unveiling the world’s first UV-C LED production product for water disinfection at Aquatech Amsterdam.
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.
Recently TrojanUV announced that their newest wastewater ultraviolet light disinfection system, the TrojanUVSigna has been selected by the Metropolitan Water Reclamation District of Greater Chicago (MWRD).
Padre Dam Municipal Water District celebrated the grand opening of its Advanced Water Purification Demonstration Facility and tour program today. The demonstration facility will use advanced water purification technologies to purify and test approximately 100,000 gallons of recycled water each day.
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, the world leader in UV-C LED disinfection systems, has been wholly acquired by Nikkiso America, Inc in a cash deal. With over a half century of product development, Nikkiso has provided original technologies to a range of industries, including medical, aviation, life sciences, and microelectronics.
Recently De Nora Water Technologies announces the launch of their new Capital Controls® gas feed disinfection cabinets, which will be unveiled at booth #1317 at WEFTEC in Chicago, from October 2-4, 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.