WASTEWATER DISINFECTION ARTICLESMore From Wastewater Disinfection Articles
WASTEWATER DISINFECTION WHITE PAPERS & CASE STUDIES
Horizon City is located in El Paso County, the most western county in Texas. The city is home to a rapidly growing population of 19,000 people, up from 5,000 during the 2000 Census. The City takes its name from the real estate development company, the Horizon City Corporation. With less than 9 inches of annual rainfall, water conservancy is a routine way of life in this part of the State.
SuperDisc™ Filtration System Case Study
Glendale Heights Wastewater Treatment Plant discharges treated water to the East Branch of the DuPage River in Illinois.
Largest Compressible Media Filter In The World
After many years of planning, design, and pilot testing, the world’s largest compressible media filter is now under construction.
Water Utility Turns To State-Of-The-Art UV Technology To Help Address Drought
The 2013 year was the driest in recorded history with many areas of the San Joaquin Valley reporting groundwater levels more than 100 feet below previous historical lows.
AnoxKaldnes Hybas™: Meeting New Limits
In 2008, AnoxKaldnes Hybas™ designs were completed by Veolia for the upgrade of the Field’s Point Wastewater Treatment Facility to meet new seasonal effluent limits for TN and TIN.
VLR® System For Biological Treatment Case Study
Economic development has its price and sometimes calls for major upgrades to a community’s wastewater treatment facilities.
Replacement Vacuum Feeders For Hypo Treatment End Heavy Feeder Maintenance Burden At WWTP
The instrumentation supervisor for the City of Baltimore, MD’s 150-MGD Back River wastewater treatment plant (WWTP) reports that replacement of problematic vacuum feeders with more advanced vacuum feed units has ended heavy maintenance burdens associated with sodium hypochlorite (hypo) treatment of plant effluent. By Cliff Lebowitz
Disinfection Performance Testing Of High-Efficiency Ultraviolet Water Treatment Chamber
This is the second in a series of three white papers describing the design and performance of the NeoTech Aqua ReFlex™ treatment chamber. The first describes in detail the theoretical basis for the very high efficiency demonstrated by the chamber. The third paper describes how this chamber design leads to some highly desirable operational advantages beyond just energy ad cost reduction. By J. R. Cooper, Ph. D. and Gwynne Cavender, NeoTech Aqua Solutions, Inc.
Theoretical Operation Of High-Efficiency Ultraviolet Water Treatment Chamber
The NeoTech Aqua ReFleX™ water purification chambers are the most efficient and compact units available today. They require an order of magnitude less energy and less than 25% of the system volume to achieve the same or better purification result as competing chambers. This is the first in a series of three white papers explaining the benefits of these systems. By J. R. Cooper, Ph.D, NeoTech Aqua Solutions, Inc.
Three Channel's A Charm: MD WWTP Chooses UV
The Seneca Wastewater Treatment Plant (WWTP) receives wastewater from the greater Washington, DC area. Heightened security and concerns over the hazards of using chlorine gas had the Washington Suburban Sanitary Commission (WSSC) reconsidering their wastewater disinfection process equipment.
Removal of Metaldehyde & Environmental Contaminant Treatment - Lincoln, United Kingdom (Case Study)
Anglian Water (Anglian) is one of the largest suppliers of drinking water and wastewater services in the United Kingdom. As an alternative to ozone, Anglian decided to install a TrojanUVTorrent™ECT UV-oxidation system, as part of a multi-barrier approach, to ensure it produced a potable water supply that matched the high standards required by its regulators and customers.
When the Summerville, GA, WWTP was looking to convert from chemical disinfection to UV, staff made the common mistake of purchasing low-price aftermarket lamps to keep costs down. Within eight months, the lamps in the UV system failed to meet expectations for permit requirements, and they had to gain approval for emergency procurement of WEDECO’S ECORAY® lamps as replacements. Today, the plant achieves the required disinfection with a significant reduction in energy use.
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WASTEWATER DISINFECTION NEWS
A First For Morocco: Trickling Filters Incorporated Into Newly Commissioned Wastewater Treatment Works
Providing a better environmental effluent discharge and improving odour control, Morocco is now benefiting from the use of trickling filters at the newly commissioned Khenifra Wastewater Treatment Works.
Evoqua Water Technologies Names Ronald C. Keating Chief Executive Officer
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.
Process And Water Chosen To Supply Industrial Wastewater And Recycling System For Manufacturer Of Aircraft Components In Eastern Europe
Process and Water, a leading manufacturer and designer of advanced water purification, filtration and chemical treatment systems, today announced that it has completed manufacturing and has shipped an industrial wastewater and recycling system as part of a larger system for a Universal Alloy Corporation manufacturing plant in Romania.
NeoTech Aqua Solutions, Inc. Welcomes Randy Truby To Its Board Of Directors
NeoTech Aqua Solutions, Inc., the industry leader in High-Efficiency Ultra-Violet (UV) water treatment systems proudly announces the addition of Randy Truby to its Board of Directors.
EPA And TDEC Recognize Tennessee Water And Wastewater Utilities For Energy Savings
At a ceremony recently in Nashville, EPA and the Tennessee Department of Environment and Conservation (TDEC) officials recognized seven drinking water and wastewater utilities throughout Tennessee for their efforts to reduce energy demand at their facilities.
Pasteurization Technology Group Demonstrates Award-Winning Wastewater Disinfection Technology At WEFTEC's Innovation Pavilion 2013
Pasteurization Technology Group (PTG), innovator of the only wastewater disinfection process that creates renewable energy, is exhibiting its technology to water and wastewater professionals attending this year's 86th Water Environment Federation's Annual Technical Exhibition and Conference (WEFTEC), held in Chicago.
Severn Trent Services Showcases Industry-Leading Water And Wastewater Treatment Solutions At WEFTEC 2014
Severn Trent Services, a leading global supplier of water and wastewater treatment solutions, will showcase its industry-leading solutions at the WEFTEC exhibition and conference in New Orleans, La., from 27 September – 1 October 2014 at booth #4217.
Blue Earth Labs® Delivers First, Non-Hazardous Solution For Neutralizing Wastewater Runoff With pHaze™ Product
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.
UV Pure Technologies Announces Realignment Of North American Wholesale Distribution
Wholesalers, distributors and dealers that have purchased UV Pure products and parts from 3M in the US or Canada may now purchase them directly from UV Pure Technologies. Parts will continue to be available to wholesalers from 3M through calendar year 2014, or directly from UV Pure.
The Water Environment Research Foundation Begins New Studies On Trace Organic Compounds And Pathogens
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.
Primozone Receives Funding For Building A Mobile Pilot Ozone System For Removal Of Pharmaceutical Residue From Wastewater
The Swedish ozone generator supplier, Primozone, has been awarded funding of a project for removal of pharmaceutical residue from waste water.
New Hampshire Student To Represent U.S. In International Stockholm Junior Water Prize Competition
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.
Calgon Carbon Relocates Headquarters
Calgon Carbon Corporation, an environmental technology company headquartered in Pittsburgh, announced recently that it has officially moved its world headquarters to the newly constructed, Westpointe Corporate Center Four in Moon Township, PA.
AMERICAN Flow Control Valve And Hydrant Digital Manual Now Available
Customers, contractors, engineers and project managers now have on-the-go access to information on AMERICAN Flow Control (AFC) products with the introduction of the AFC Valve and Hydrant Digital Manual.
Calgon Carbon Corporation Awarded As Advanced Manufacturer Of The Year By Pittsburgh Technology Council
On November 1, The Pittsburgh Technology Council held their 16th Annual Tech 50 awards presentation at the Wyndham Pittsburgh downtown to announce the region’s 50 leading technology-oriented companies in southwestern Pennsylvania.
Xylem Wins 2014 Water Reuse Equipment Manufacturer Of The Year
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.
Silver Bullet System Recognized As An Advanced Oxidation Process Water Treatment Solution
Silver Bullet, an award-winning, cutting-edge water treatment company, announces that its technology has been proven by third party researchers as an Advanced Oxidation Process or AOP.
ABOUT WASTEWATER DISINFECTION
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.