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.
The 3-Way Valve is available in 4”, 6” and 8” sizes and is available as a stand-alone valve or as part of a Vaughan submersible or vertical wet-well Chopper Pump. The valve is a non-plug design using a rotatable CD-4MCu valve disc to allow discharge out of either of the top ports.
The revolutionary new ClorTec® SCT is a fully integrated patent pending design from De Nora Water Technologies. Salt, water and electricity are electrolyzed to produce up to 4.4 lb/day (2 kg/day) chlorine equivalent of hypochlorite solution at 0.7% strength. The system offers superior health and safety benefits for employees on site due to its innovative design.
Xylem offers long disinfection experience and a broad portfolio of UV solutions specially for corrosive media like saltwater.
The MagnaPak™ System provides a simple, cost-effective solution for meeting EPA disinfection by-product standards by utilizing the MIEX® ion exchange resin to remove dissolved organic carbon – a precursor to DBP formation – from the raw water supply
The 499AOZ sensor is intended for the continuous determination of dissolved ozone. The primary application is ozonation basins in municipal water filter plants. Ozone is also used as a disinfectant in bottling and food processing plants.
Capital Controls Series WM4000 gas feeders are wall cabinet mounted vacuum operated and designed to conveniently house a combination of gas feed equipment. The fibreglass cabinets enclose the gas flow control components.
De Nora Water Technologies’ EST™ dry emergency scrubbers are engineered to meet national codes for the mitigation of hazardous gas releases from pressurized 150-pound cylinders and one-ton containers of chlorine, sulfur dioxide, ammonia and other toxic gases. Dry scrubbers are safe, user-friendly, low maintenance systems tested and proven for use in municipal and industrial applications where the potential exists for the accidental release of heavier-than-air hazardous gases.
The Sludge Sucker™ unit is a cable-driven sludge removal mechanism that provides cost-effective and efficient removal of lightweight sludges, such as alum or ferric hydroxide, or light iron and manganese precipitates from rectangular settling basins.
Polymer activation through proper hydration of the polymer particle is critical in water clarification or sludge dewatering applications. According to Jeff Rhodes, Vice President of Commercial Development for UGSI Solutions, “the key is to have a high energy zone at the moment of initial welding, when the polymer and the water come together.”
Peracetic acid (PAA)-based disinfection is growing in the US, both as a standalone disinfection method and in conjunction with other applications such as UV. Water Online Radio sat down with John Maziuk, Technical Development Manager with Solvay Chemicals to understand why.
The era of dumping waste into rivers is almost over. So says Jon McClean, Chief Technical Officer with ETS-UV, an Evoqua brand. McClean who has been working in UV water treatment for over 30 years recently sat down with Water Online Radio to discuss the growth of water reuse and specifically UV’s role in water reclamation.
As municipalities look to make their water and wastewater treatment equipment run longer with fewer operational staff on payroll to maintain the equipment, having a reliable aftermarket parts and service provider becomes essential.
Learn why measuring UV transmittance is so important to efficient disinfection, and how LED helps get you there.
Chlorine has been used to disinfect water and wastewater for more than a hundred years, and while chorine has been critical to ensure public safety, it does have some drawbacks. There is a risk of highly toxic emissions, and it also reacts with organic matter in water and wastewater and forms harmful disinfection byproducts.
The newest family in the SUEZ ozone range, the ozonia® M includes all the latest developments from the ozonia® innovation labs. Ozonia® IGS+ dielectric technology provides even lower energy consumption and increased ozone production capacity up to 25 kg/h resulting in a lower cost per kg of ozone. The new ozonia® smartO3™ automation platform adds a suite of advanced features designed to optimize system performance and reduce operation costs. Finally, an innovative design provides improved resistance to environmental conditions in a more compact footprint.
RWL Water and Emefcy have merged to create Fluence Corporation, bringing together breakthrough, energy-saving technologies and proven delivery platforms that optimize treatment solutions for the complete water cycle. Fluence products address all segments of the water value chain, including desalination, reuse, wastewater treatment, freshwater treatment, and waste-to-energy — making it one of the world’s most comprehensive distributed water services firms. Visit us at WEFTEC booth #7135.
Hach's breakthrough suite of software and connected instruments turns data into powerful operational insights. Watch this short video to see how Hach simplifies the complexities and brings clarity to water management.
The Memcor® CSII double-ended filtration system features innovative double-ended filtration that uses up to 20 percent less backwash aeration energy. The proven module design reduces footprint by up to 30 percent or utilizes new space and increases capacity up to 30 percent.
The CoMag® system from Evoqua improves chemical flocculation treatment in wastewater and drinking water applications by using magnetite (an iron ore) to ballast chemical floc, resulting in rapid, reliable and enhanced settling and clarification. The CoMag system settles floc up to 30 times faster than conventional treatments, which reduces plant investment costs by enabling greater treatment capacity in smaller or existing tanks.
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.
