WASTEWATER DISINFECTION ARTICLESMore From Wastewater Disinfection Articles
WASTEWATER DISINFECTION WHITE PAPERS & CASE STUDIES
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.
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.
Not All UV Lamps Are Created Equal
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.
Genuine TrojanUV3000Plus Lamps Vs. Non-Genuine Lamps: A Side-By-Side Comparison (Case Study)
Perform Lamp Output And Aging Study On Trojan UV3000™ Lamps And Non-Genuine G64T5 Low Pressure UV Lamps
Top 10 Considerations When Converting To On-Site Hypochlorite
Transporting pure salt - the raw material needed to generate sodium hypochlorite onsite – is more cost effective, stable, and safer, than transporting and storing bulk sodium hypochlorite, or gaseous/liquid chlorine cylinders from local chemical suppliers. The conversion to on-site hypochlorite generation can be achieved by adhering to these design guidelines.
Conversion To UV Disinfection: A Natural Wastewater Treatment Alternative
The city of Auburn, AL has two wastewater treatment facilities – the Northside Water Pollution Control Facility and the H.C. Morgan Water Pollution Control Facility. In 2012, the H.C. Morgan facility was upgraded, and disinfection was converted from chlorine to UV. This case study will provide you with details about the selection process, why our TrojanUVSigna™ was chosen, and how we helped simplified the conversion from chlorine.
Size Your Ozone System In 5 Minutes Or Less
The most common questions about using ozone for the treatment of industrial wastewater relate to system sizing and pricing. Here are five quick rules of thumb to get a ‘ballpark size’ for your next ozone project.
Municipal Wastewater Reuse – The Challenges Ahead
Water resources are becoming more constrained. Obtaining surface or groundwater withdrawal permits is becoming increasing difficult. By Randy Turner, Technical Director, Swan Analytical USA
Orenco Systems® Inc. (Orenco) recently completed the sale and commissioning of a wastewater treatment system for the Soyo Municipal Hospital in Angola.
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WASTEWATER DISINFECTION NEWS
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.
Xylem’s New Energy Efficient Closed-Vessel UV System For Wastewater Disinfection And Reuse Unveiled At WEFTEC
Xylem Inc., a leading global water technology company focused on addressing the world’s most challenging water issues, has further extended its capacity range of closed-vessel, ultraviolet (UV) disinfection solutions for wastewater, industrial and water reuse applications with the launch of the WEDECO LBXe 850 and 1500.
ADB Supports Wastewater Reuse In People's Republic Of China
The Asian Development Bank (ADB) is helping the People’s Republic of China (PRC) improve the quality of wastewater management and reuse through a $240M private sector loan package to Beijing Enterprises Water Group Limited (BEWG), an integrated water infrastructure operator.
Hyde Marine Strikes Agreement With Singapore-Based Keppel Shipyard And SEAQUEST Marine Systems For Expanded Hyde GUARDIAN Gold Ballast Water Treatment System Installations
Hyde Marine, Inc., a wholly owned subsidiary of Calgon Carbon Corporation, announced recently it has established a Memorandum of Understanding (MOU) with Singapore-based Keppel Shipyard and SEAQUEST Marine Systems PTE, Ltd., for installation of the chemical free Hyde GUARDIAN Gold Ballast Water Treatment System (BWTS) in international markets.
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.
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.
MIOX Presents At Cooling Tower Institute (CTI) Conference
MIOX Corporation, the industry leader in on-site chemical generation technology, announces Tom Muilenberg, MIOX Director of Commercial Operations and Cem Candir, MIOX VP of Sales & Marketing will present the technical paper “How Stripping Biofilm from the Cooling Water Loop Impacts Power Plant Production Output” at the Cooling Tower Institute (CTI) Conference in Corpus Christi, TX on Monday, February 4, 2013.
BIOWATER Wastewater Treatment Package Plant Arrives In Residential Neighborhoods
Biowater Technology is pleased to announce the arrival of its prefabricated systems to be used for residential wastewater treatment.
Electro-Chlorination To Take Top Spot In Water And Wastewater Disinfection Systems Market In India Finds Frost & Sullivan
The increasing difficulty in meeting the growing water demand of industries in India is necessitating optimization of available water resources.
Ecosphere Technologies Announces Delivery Of First Ozonix® EF10M Unit For Brasil Clean Energy
Ecosphere Technologies, Inc. (OTCQB: ESPH), a U.S. technology licensing and innovative manufacturing company, today announced completion of manufacturing and delivery of an Ozonix® EF10M water treatment system for Brasil Clean Energy ("BCE"), an environmental services company and recent Ecosphere licensee in Brazil.
Pasteurization Technology Group Makes A Big Splash At WEFTEC 2013
Pasteurization Technology Group (PTG), innovator of the only wastewater disinfection process that creates renewable energy, generated tremendous excitement when it shared the award podium with established industry powerhouses at the 86th Annual Technical Exhibition and Conference (WEFTEC® 2013) that took place in Chicago last week.
AWWA Webinar Focuses On Ebola Risks, Precautions For Water And Wastewater Personnel
With Ebola protocols developing almost daily in the public health sector, the American Water Works Association will offer a timely webinar focusing on risks and precautions for drinking water and wastewater employees.
NanoH2O Founder And CEO Jeff Green Joins NeoTech Aqua Solutions' Board Of Directors
NeoTech Aqua Solutions, Inc., the industry leader in High-Efficiency Ultraviolet (UV) water treatment systems proudly announces the addition of Jeff Green 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.
Alcoa And Bauer Enter Agreement To Commercialize Natural Engineered Wastewater Treatment Technology
Alcoa has entered into an agreement with Germany-based engineering and construction company, Bauer Resources GmbH, to commercialize Alcoa’s Natural Engineered Wastewater Treatment technology that mimics natural wetlands to sustainably treat wastewaters.
Frost & Sullivan: Rapid Urbanization In Brazil Prompts Larger Investments In Water And Wastewater Treatment Chemicals
The consistent expansion of Brazil's urban population has spawned a parallel demand for potable water; the country is expected to require 570.0 cubic meters per second in 2015.
MIOX Cooling Tower Disinfection Boosts Power Plant Production By 7% And Reduces Annual Operating Costs By $34M
MIOX Corporation, the technology leader in on-site chemical generation, announced recently that a unique bio-control approach developed by exclusive distributor New Technology Systems, Inc. (NTS) has not only achieved significant savings compared to bulk hypochlorite usage, but also increased the production output by more than 7%, or 40 MW at one of Puerto Rico’s main suppliers of energy, the 590 MW Palo Seco Power Plant.
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.