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.
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.
The City of Dundee is a growing community with a strong economy boasting three wineries within the city limits and several others in the surrounding Willamette River Valley. The City’s existing WWTP was nearing capacity, and the limited discharge to the Williamette River would not adequately support Dundee’s planned growth.
Facing new limits on acceptable levels of DBPs in the drinking water, as well as age-old complaints about the taste of the water during the summer algal bloom, the North Texas Municipal Water District turned to ozone disinfection as a possible alternative able to address both concerns.
In an effort to reduce reliance on dwindling surface and groundwater supplies in Texas, the Colorado River Municipal Water District (CRMWD) constructed a new Raw Water Production Facility (RWPF) in Big Spring. Big Spring is a 27,000-member community located in West Texas approximately 300 miles west of Dallas. This RWPF treats secondary wastewater to a standard that allows it to be re-introduced directly into the raw water supply for the water treatment plants of Big Spring, Odessa, and other communities in the region.
Read the full case study to learn how the County of Maui Department of Water and IMS determined that spent caustic used at the local wastewater treatment plant and the acid wash solution generated during the cleaning process could be neutralized on-site and disposed through the local wastewater treatment system.
Iranian researchers from Semnan University designed a photocatalyst with high efficiency and rate to eliminate organic pollutants at laboratorial scale to obtain an optimum water and wastewater purification system.
De Nora Water Technologies will showcase its industry-leading water and wastewater treatment solutions at the WEFTEC Technical Exhibition and Conference in Chicago from 27 to 30 September at booth #631.
Ecosphere Technologies, Inc. (OTCBB:ESPH), a U.S. technology licensing and innovative manufacturing company, today announced that it has signed an exclusive technology licensing and equipment purchase agreement with Brasil Clean Energy, a Brazilian environmental services company, to deploy its patented Ozonix® water treatment technology for the Food and Beverage industry in Brazil.
The Jacobi Carbons Group announced recently that its Nattandiya, Sri Lanka production facility has received certification from the Water Quality Association (WQA) under WQA/ASPE/ANSI Standard S-802: Product Sustainability for Activated Carbon.
Pasteurization Technology Group (PTG), innovator of the only wastewater disinfection process that creates renewable energy, announces the hiring of Graham McCarthy as Project Engineer.
The County of New Castle, Delaware has awarded the contract to upgrade the UV disinfection system at their wastewater facility to ETS-UV by Neptune Benson. The upgrade will convert the existing chlorine based system to a state of the art closed vessel UV system.
The Swedish ozone generator supplier, Primozone, has been awarded funding of a project for removal of pharmaceutical residue from waste water.
Kruger will implement two 12.5 MGD ACTIFLO systems for Warwick’s Advanced Wastewater Treatment Facility phosphorus removal upgrade, as part of the city’s wastewater facility’s nutrient removal upgrade plan.
Officials at BlueInGreen, LLC announced the water treatment company's latest SDOX-CS® installation Wednesday, bringing the world's most efficient gas dissolution technology to the Jefferson Parish Department of Public Works in Louisiana.
Neptune Benson, a leading manufacturer of water filtration products serving the aquatics, industrial and municipal markets, is pleased to announce that Emmett Jorgensen has joined the company as the Corporate Director of Marketing.
Desalitech, a provider of high efficiency water treatment solutions, announced that water industry leader Dr. Rafael Simon will serve on the company’s advisory board.
Ozoniers.com, a brand of Qingdao Danjia Machinery, is solely into wastewater treatment research and development.
Dow Microbial Control, a business group of The Dow Chemical Company, has received approval from the United States Environmental Protection Agency for its innovative, solid form of KATHON Antimicrobial.
With accelerating global concerns about the need for water and air purification solutions, the International Ultraviolet Association (IUVA) announces the IUVA 2016 IUVA World Congress & Exhibition, January 31 to February 3, 2016 in Vancouver, Canada.
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.
Clearford Water Systems Inc. (“Clearford” or the “Company”) held its Annual General Meeting of Shareholders recently in Ottawa.
NeoTech Aqua Solutions Inc., the leader in high-efficiency UV systems for disinfection, Advanced Oxidation Processes, and TOC Reduction in water and water reuse will be participating at the IUVA America's Regional Conference in White Plains, NY from October 26-28th, 2014.
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.