WASTEWATER DISINFECTION WHITE PAPERS & CASE STUDIES

Systems Work In Series To Increase Filter Run Times, Reduce Water Use, And Improve Finished Water Quality

The city of Florence, Colorado Water Treatment Plant (WTP), located 75 miles south of Denver, uses blended surface water taken from the city’s southernmost water reservoir.

  • Dissolved Air Flotation Technology Nearly Doubles Treatment Capacity
    Dissolved Air Flotation Technology Nearly Doubles Treatment Capacity

    Faced with a tight capital budget, a city in British Columbia required a new design for a water treatment plant capable of a maximum daily water production of 21 MPG during peak demand periods, with an ultimate demand of 29 MGD.

  • How To Get A One-Year Payback On Retrofit Chopper Pumps For Your Packaged Lift Station
    How To Get A One-Year Payback On Retrofit Chopper Pumps For Your Packaged Lift Station

    The Independence Hill Conservancy District's Taney Lift Station was having continuous problems with wipes, swiffers, and plastics deposited in the incoming lines, which then broke loose in storms and overwhelmed the old non-clog pumps.

  • Treatment Plant Utilizes UV Disinfection To Exceed Environmental Regulations
    Treatment Plant Utilizes UV Disinfection To Exceed Environmental Regulations

    The city of Carmel, IN, located north of Indianapolis, owns and operates a WWTP that treats sanitary waste from three Utilities.

  • Hydro-Guard® Improves Water Quality And Saves Man-Hours For Central Texas Vacation Community
    Hydro-Guard® Improves Water Quality And Saves Man-Hours For Central Texas Vacation Community

    The user population of the Horseshoe Bay Water Distribution System does not reach its peak until summer and the resultant levels of peak and low usage vary widely.

  • FGD Purge Treatment In Coal-Fired Power Generation
    FGD Purge Treatment In Coal-Fired Power Generation

    Stricter environmental policies and regulations worldwide are changing how industry approaches all aspects of business. Likewise, EU (European Union) environmental policies governing air, soil, and water quality have become progressively stringent.

    These policy changes affect the power industry’s balance of meeting growing European energy demands with compliance to environmental standards. In order to conform with EU standards specific for flue gas, a coalfired generation plant (at the time owned by Endesa, Italia, S.p.A.) in Monfalcone, Italy, undertook the measure of installing a state-of-the-art FGD (flue gas desulfurization) system at their facility. This system would remove SO2 (sulfur dioxide) from the emissions for the 336 MW coal-fired power station.

  • Design-Build Using Actiflo Technology
    Design-Build Using Actiflo Technology

    A state-of-the-art 695-MW power generation facility was recently installed in the Northeastern U.S. to serve the country’s highest demand market. Its innovative power generation technologies, emissions control systems and process efficiencies make it one of the cleanest, most efficient and technologically advanced supercritical pulverized coal (SPC) power plants in the U.S.

  • Coal Yard Runoff Compliance Using Actiflo® Technology
    Coal Yard Runoff Compliance Using Actiflo® Technology

    Storm water runoff from a 37-acre coal storage yard utilized as part of daily operations at an industrial site in Southwestern Pennsylvania posed a problem when the Pennsylvania Department of Environmental Protection (DEP) updated the facility’s NPDES permit.

  • Black Liquor Evaporation And Chloride Removal System
    Black Liquor Evaporation And Chloride Removal System

    The Smurfit-Stone Hopewell mill needed to replace the existing three evaporator trains that were currently in place at this facility with one very highly integrated system.

  • Design-Build Zero Liquid Discharge (ZLD) System — New Harquahala Generating Project
    Design-Build Zero Liquid Discharge (ZLD) System — New Harquahala Generating Project

    The New Harquahala Generating Project serves as a power and electrical wholesaler in the Southwestern United States. To fill the need for growing energy consumption in the region, this facility was built to provide power to the area.

  • Maximum Water Reuse, Zero Liquid Discharge — A Power Plant Case Study
    Maximum Water Reuse, Zero Liquid Discharge — A Power Plant Case Study

    ELCOGAS, established in 1992 with the aim of building and operating a 335 MW Integrated Gasification Combined Cycle (IGCC) power plant as well as the commercialization of its technology.

A Fairy Tale Ending At A Pump Station

The Otay River Pump Station (ORPS) was upgraded in 2003, to feed effluent to the City of San Diego’s newly constructed South Bay Water Reclamation Plant. By Glenn Dorsch, P.E, VP/Chief Engineer, Vaughan Co. Inc.

More White Papers & Case Studies

WASTEWATER DISINFECTION PRODUCTS

<B>Municipal Wastewater Treatment</b>

Municipal Wastewater Treatment

With a broad line of high-quality carbon products, comprehensive service programs and treatment systems, advanced equipment and technologies, Calgon Carbon provides cost-effective solutions in industrial and municipal wastewater treatment

Disinfection Technologies

Disinfection Technologies

When determining the best water disinfection method, considering the countless design and operational factors can be daunting, but Severn Trent Services makes it easy

NeoTech D228™

NeoTech D228™

The NeoTech D228™ is specially designed to disinfect water and is an essential component in advanced oxidation processes.

Wastewater Equipment Retrofit, Rehab and Aftermarket Solutions

Wastewater Equipment Retrofit, Rehab and Aftermarket Solutions

When demand increases, regulations change, and components reach their useful life, Evoqua Water Technologies responds.

Disinfection Series

Disinfection Series

The NeoTech Aqua Disinfection Series is specially designed to disinfect water and is an essential component in advanced oxidation processes.

TOC Reduction

TOC Reduction

NeoTech Aqua Solutions provides the most efficient and cost-effective UV systems for destroying Total Organic Carbons (TOC’s) in water.  Whether your destroying NDMA, 1,4-dioxane, TCE, MTBE, urea, endocrine disruptors or other organics, only NeoTech Aqua provides ultraviolet TOC reduction with a treatment chamber optimized for low pressure mercury lamps.  As a result, NeoTech Aqua’s UV systems achieve a three times greater TOC reduction per kilowatt compared to standard UV systems, reducing our clients’ costs and energy consumption. In addition to efficiently generating ample 185 nm UV for TOC reduction, NeoTech Aqua’s TOC reduction systems also generate significant levels of 254 nm UV which serve as a powerful disinfectant, providing you both TOC-free and organism-free product water.

SMART Digital Dosing

SMART Digital Dosing

SMART Digital dosing pumps respond to the most recent chemistry developments in water treatment, wastewater recycling, and disinfection with energy saving technology and high dosing accuracy.

SeleniumZero&reg; A Selenium Removal Solution

SeleniumZero® A Selenium Removal Solution

Selenium limits for mining effluents can be reached using biological treatment and/or adsorption.  Veolia’s AnoxKaldnes™ Moving Bed Biofilm Reactor (MBBR) process has a small footprint and can handle high TSS concentrations in feed as well as large hydraulic variations.  Our proprietary SeleniumZero® adsorption systems can be used for MBBR effluent polishing or as stand-alone solutions for lower concentration streams.

More Products

WASTEWATER DISINFECTION PODCASTS

Bio-Augmentation: Adding Bacteria To Wastewater Treatment Plants

Bio-Augmentation: Adding Bacteria To Wastewater Treatment Plants

Novozymes is the world’s largest industrial biotech company. The largest segment of the company deals with enzyme products, and they innovate products and develop applications in a variety of industries including first and second generation biofuels, bio-agriculture, detergents, and wastewater applications.

Ozone: An Emerging Star For Disinfection

Ozone: An Emerging Star For Disinfection

There are many places around the country where water shortage is a big issue. Water is the most precious resource we have, and in light of the shortage, people have started trying to investigate creative ways of ‘what’s my next water resource,’ Chris Milligan, vice president, director of engineering with BlueInGreen, told Water Online Radio in an interview.

UV Disinfection With LEDs

UV Disinfection With LEDs

UV LEDs offer the chemical free disinfection of traditional UV while avoiding mercury lamps. In certain applications where customers are concerned about the potential hazards of mercury contamination in the water from a broken lamp, UV LEDs are interesting because they don’t contain any mercury content at all.

Keeping Costs Down By Focusing On A Smaller Footprint

Keeping Costs Down By Focusing On A Smaller Footprint

Focused on creating solutions with a smaller environmental footprint for its customers, Severn Trent Services recently enhanced one of its gas regulators from handling 100 pounds of chlorine per day to handling 250 pounds per day for the same price.

How Do You Disinfect? Electrolysis Offers Alternative To Chlorine

How Do You Disinfect? Electrolysis Offers Alternative To Chlorine

Though the company has only been around about a decade, MIOX is making a notable impression on the water and wastewater treatment industry.

The Evolution Of Low-Energy UV Disinfection

The Evolution Of Low-Energy UV Disinfection

Conventional ultraviolet (UV) disinfection is a great, but often expensive, solution for the destruction of pathogens in drinking water. All those lamps and power emissions add up. But what if you could perform the same job with 1/10 of the power used by conventional systems?

More Wastewater Disinfection Podcasts
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WASTEWATER DISINFECTION VIDEOS

Package Solution Helps Local Water Utility Save Energy, Environment

Package Solution Helps Local Water Utility Save Energy, Environment

The water utility in Lawrenceburg, IN, was dealing with an aging water treatment system and wanted to solve problems with a package solution.

Efficient, Operator Safe, And Non-Clogging Wet Well Mounted Pump Stations

Efficient, Operator Safe, And Non-Clogging Wet Well Mounted Pump Stations

This City of Perryville, MO appreciates the above grade pumping approach provided by Smith & Loveless. From safety, to efficiency and performance, the Wet Well Mounted Pump Station is the preferred pump station in this Missouri town.

Biological Denitrification Evolves

Biological Denitrification Evolves

As regulation regarding nutrients evolves, so does the technology to remove them.

Oxelia: An Ozone-Enhanced Biologically Active Filtration System

Oxelia: An Ozone-Enhanced Biologically Active Filtration System

Xylem’s Leopold Oxelia is designed for municipal wastewater treatment. The ozone-enhanced biologically active filtration system and multi-barrier solution combines ozone, filtration and analytical instrumentation to deliver optimal wastewater treatment for water reuse and discharge into sensitive waters.

Compact Solids Separation And UV Disinfection Technologies Showcased At WEFTEC (Video)

Compact Solids Separation And UV Disinfection Technologies Showcased At WEFTEC (Video)

Salsnes Filter offers an alternative to traditional primary clarification for solids separation by using a rotating belt filter to remove suspended solids to high levels but also thickening and dewatering the solids in one compact footprint.

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WASTEWATER DISINFECTION NEWS

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.