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.
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.
In December 2006, Integrity Municipal Services (IMS) was contacted by the City of California City Plant Manager Greg Fielding to perform an inspection of their RJ-2000® emergency chlorine vapor scrubber system.
The MNI Wiconi Water Treatment Plant in Ft. Pierre, SD was built for the Oglala Sioux Rural Water Supply System between 1997 and 2002 with a grant provided by the U.S. Department of Interior.
In 2014, bids were solicited to design, supply, install, and commission two Emergency Chlorine Scrubber Systems at the La Mesa Treatment Plants 1 and 2 in Quezon City, Philippines.
Designed as a generic type of UV disinfection unit, the Trojan Package Treatment Plant (PTP) is very price competitive and offers an "off-the-shelf" solution for operators with limited budgets and limited treatment requirements.
Pipeline Flash Reactors™ (PFRs or spool pieces) utilize high velocity mixing to transfer ozone or oxygen-enriched sidestreams into bulk water flow, all within a compact footprint. With a PFR, ozone or oxygen mass transfer occurs in the pipeline within seconds, eliminating the need for additional tanks or basins. Whether it is providing ozone for water purification or increased dissolved oxygen for wastewater, Mazzei’s PFR uniformly distributes gas into the water and minimizes the size and cost of gas contacting.
The NeoTech D222™ is specially designed to disinfect water and is an essential component in advanced oxidation processes.
The NeoTech Aqua Disinfection Series is specially designed to disinfect water and is an essential component in advanced oxidation processes.
The MARINER OMNIPURE® Series M55 marine sewage treatment units offer a unique approach to wastewater treatment on smaller vessel, workboat and yacht applications. MARINER OMNIPURE Series M55 features a bulkhead mounting arrangement — a first of its kind — that provides safe and effective treatment of the wastewaters on board your vessel. The system results in discharge effluent quality well within the MEPC.159(55) requirements.
About 100 years ago, Charles F. Wallace and Martin F. Tiernan installed the first chlorinator in New York, and since, chlorine gas has been the predominant chemical for the disinfection of water.
ClorTec CT systems easily control sodium hypochlorite production and provide a powerful disinfection method for any application. CT systems meet requirements for 450–3,000 lb/day (204–1,360 kg/day) chlorine equivalent. Applications include potable water, wastewater, odor and corrosion control,cooling towers, oxidation and swimming pool disinfection.
The TrojanUV3000™B is available with a controller that enables flow pacing to maximize operating efficiency and extend lamp life. The system turns UV lamp banks on and off automatically to ensure the required dose is met using the fewest lamps and least electricity. These simple, robust, and operator-friendly systems have demonstrated their effective, reliable performance in thousands of installations around the world.
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 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.
The Groundwater Replenishment System (GWRS) in Orange County, California is the largest indirect potable reuse project of its kind in the world. Our TrojanUVPhox™ plays an important role in the facility's treatment train.
Water reuse is being adopted in the US as industry and communities recognize the need for a steady and sustainable water source for their future. In this Water Online video, Adam Festger, Market Manager for Trojan Technologies, discusses the Orange County groundwater replenishment system and other recent water reuse projects that Trojan UV has been involved in.
Gary Lohse, Regional Sales Manager for De Nora Water Technologies, provides Bill King with a tour of the Company’s WEFTEC 16 booth and explains some of the product enhancements and initiatives that the new company has made since acquiring Severn Trent’s water treatment business last year.
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.
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.
A scientific breakthrough has taken an emerging biotechnology a step closer to being used to treat wastewater in the Developing World.
Alkame Holdings, Inc. (OTCQB: ALKM), a publicly traded health and wellness technology holding company with a focus on patentable, innovative, and eco-friendly products announced today that High Country Shrimp LLC, the Company's wholly owned subsidiary, has secured a location and begun testing for the company's 'proof of concept,' utilizing the patented Alkame technology for use within the aquaculture industry.
RWL Water, a global leader in water, wastewater and reuse solutions and Química Apollo, one of the leading Mexican companies in chemical treatment services to the oil and gas, power and general industries, are pleased to announce the creation of a joint venture in Mexico.
Ecosphere Technologies, Inc. (OTCBB:ESPH), a water engineering, technology licensing and innovative manufacturing company, today announced that the U.S. Patent and Trademark Office has issued a formal Notice of Allowance for a fifth patent to treat industrial wastewaters including those that are produced during the exploration and production of oil and natural gas.
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.
NeoTech Aqua Solutions, Inc., the industry leader in High-Efficiency Ultra-Violet (UV) water treatment systems, announces its first exclusivity agreement, signed with Bluewater Bio International, a leading global provider of innovative, high performance water and wastewater treatment technologies.
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.
Deepika Kurup from Nashua, N.H. was named the U.S. winner of the 2014 Stockholm Junior Water Prize (SJWP)—the most prestigious international competition for water-related research—during a ceremony this past weekend at the Hilton Dulles Airport Hotel in Herndon, Va.
The new website will better assist municipalities, industries, minerals processing entities, engineers, contractors, and maintenance personnel in selecting equipment and solutions for water and wastewater processing applications.
The Orange County (California) Water District (OCWD), recipient of this year’s prestigious Lee Kuan Yew Water Prize, continues to implement the expanded Evoqua MEMCOR® modular membrane system at its pioneering Groundwater Replenishment System (GWRS).
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.
Desalitech, a global leader in reverse osmosis water treatment, recently announced that Jantje Johnson has joined their growing team.
The City of Oceanside’s “Pathogen Removal Study” was recognized at the White House Water Summit held on March 22 to commemorate World Water Day.
For a low-cost method of measuring disinfection efficiency and contamination levels, Cole-Parmer presents the new GreenLight® Environmental Bacterial Count Systems.
Evoqua recently announced its ETS-UV line installation is complete and commissioned at the Monticello Waste Water Treatment Plant in southwest Indiana, approximately halfway between Lafayette and South Bend, Indiana.
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.
