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.
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.
In October 2014, Eastern Municipal Water District (EMWD) selected IMS to clean, inspect, and restore four Bulk Emergency Chlorine Vapor Scrubber Systems.
The Integrity Municipal Services (IMS) team successfully cleaned and reconditioned an emergency chlorine vapor scrubber in Cheyenne, WY and did so while providing substantial savings to the City of Cheyenne, Board of Public Utilities (BOPU).
Aqua America water treatment plant in Tiffin, Ohio, was built in the 1920s and is situated on the Sandusky River. The plant processes 3.4 million gallons per day and was facing challenges of producing high-quality drinking water. A full measure of seasonal variety, combined with the runoff from a thriving agricultural environment, caused the small-town water facility to constantly encounter adverse conditions. In an effort to remain compliant, Aqua America enhanced coagulation, but this increased sedimentation rates and exacerbated sludge blanket depths.
When the Coldwater Board of Public Utilities in Coldwater, Michigan abruptly received new ammonia permit limits in August of 2007, they hired consultants to help guide them to the best solution for their new problem. With a full‐measure of influent waste variety consisting of residential, commercial, industrial and septage and a new seasonal permit limit of 2mg/L, Coldwater hoped for a budget friendly solution to consistently perform through peak flows and industrial shockloading.
The U.S. Environmental Protection Agency (EPA) and Justice Department’s Environment and Natural Resources Division announced recently a settlement with Cal-Maine Foods, Inc., one of the nation’s largest egg producers, that resolves Clean Water Act violations at the company’s poultry egg production facility in Edwards, Miss.
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.
Xylem, a leading global water technology company dedicated to solving the world’s most challenging water issues, announced recently that its Wedeco brand – a pioneer in chemical-free, sustainable water treatment technologies – is this year celebrating its 40th anniversary.
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.
Xylem, a leading global water technology company focused on addressing the world’s most challenging water issues, was awarded the 2014 WateReuse Equipment Manufacturer of the Year by the WateReuse Association at their 29th Annual Symposium in Dallas, Texas.
The Water Environment Research Foundation (WERF) is seeking research proposals to examine the effects of peracetic acid (PAA) on aquatic life, on water- and wastewater-related processes, and to provide guidance on the use of PAA as a disinfection method.
Evoqua Water Technologies has been selected by Alderson, W.Va., to supply its industry-leading CoMag ballasted clarification system to enhance the performance of the Alderson Wastewater Treatment Plant (WWTP).
Faith Critzer, a food safety specialist with University of Tennessee Extension, will lead a new multistate research and outreach project to help fruit and vegetable growers mitigate the risks their water sources might pose to the safety of their produce.
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.
In a brief filed Monday in the 5th Circuit Court of Appeals, the American Water Works Association and the National Association of Water Companies challenged a new rule on steam power plant discharges, arguing that it does not adequately protect drinking water consumers.
Ozone treatment efficiently removes many micropollutants contained in wastewater, but in some cases, it can lead to the formation of toxic byproducts.
ICAP Patent Brokerage announces for license a multi-patented, revolutionary Advanced Oxidation Process (AOP) from Ecosphere Technologies, Inc. that is currently being used by Fortune 500 customers to reduce costs, increase treatment efficiencies and eliminate liquid chemicals from wastewater treatment operations around the United States.
UGSI Solutions announced recently the acquisition of PAX Water Technologies was completed on Friday, January 27th.
In this latest case study from Mueller Co., read how the City of Horseshoe Bay saves labor costs after the installation of 10 Hydro-Guard HG-1 Signature automatic flushing units and 7 Safety-Guard sampling stations.
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.
Environmental Protection, a comprehensive online, information resource for environmental professionals,recently announced the winners of its annual New Product of the Year contest, which attracted entries in seven award categories including environmental management, green technology, health and safety/cleanup, software/SaaS, soil and groundwater, wastewater, and water.
The Water Environment Research Foundation has awarded the University of Cincinnati, Southern Nevada Water Authority, and Iowa State University with contracts to support further research on trace organic compounds (TOrC) and pathogens.
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.