WASTEWATER DISINFECTION WHITE PAPERS & CASE STUDIES

Safeguarding Public Health with UV Disinfection – Swansea, United Kingdom (Case Study)

In order to improve the treatment performance (because of the continued cost to maintain compliance), and ensure that it would eventually have the treatment capacity to meet future population growth equivalent of up to 225,000,

  • Ozone For Pulp Bleaching
    Ozone For Pulp Bleaching

    SNIACE S.A. is a pulp mill located in Spain with an annual production capacity of 66,000 tons of dissolving pulp from Eucalyptus. Forty percent of the pulp is used in their own viscose plant, and the remaining 60 percent is sold to the market.

  • Headworks Bar Screen — Buy Well, Buy Once!
    Headworks Bar Screen — Buy Well, Buy Once!

    Our screens have been installed in all corners of the world and this installation at Selkirk, Manitoba continues that exciting trend. The City of Selkirk is located 14 kms from Winnipeg in the Western Canadian province of Manitoba and is also known as the Catfish Capital of the World!

  • Ozone For Industrial Cooling Water Treatment
    Ozone For Industrial Cooling Water Treatment

    Infraserv Hoechst is a leading company for operating large-scale industrial and chemical production complexes. It is a complete service provider offering services such as purchasing, engineering, and facility management, and it has a full supply of products such as compressed air, steam, cooling water, purified water, technical gases, and energy.

  • Ozone Plays Critical Disinfection Role At Water Reclamation Plant
    Ozone Plays Critical Disinfection Role At Water Reclamation Plant

    The Rio Grande River and the two major aquifers in the El Paso, TX, area had been dried up for decades when El Paso Water Utilities (EPWU) developed the Fred Hervey Water Reclamation Plant, the nation’s first full-scale wastewater reclamation plant to use tertiary treatment to restore wastewater to national and state potable water standards.

  • Turbidity And T&O Issues Eliminated With Environmentally Friendly Treatment Technologies
    Turbidity And T&O Issues Eliminated With Environmentally Friendly Treatment Technologies

    The Metropolitan Water District of Salt Lake & Sandy (District) in Draper, UT, integrated a mix of complementary treatment barriers to address specific disinfection, turbidity, and taste and odor (T&O) issues shared by many surface water treatment facilities while also instilling the needed capabilities to adapt to changing regulatory requirements.

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

  • Improved Pump And Seal Reliability When And Where It Really Counts
    Improved Pump And Seal Reliability When And Where It Really Counts

    The City of Chester, IL was getting only about 6 months life out of the mechanical seals in their former non-clog lift station pumps. While replacing seals twice per year was difficult and expensive, the more serious problem occurred when the seals failed with the Mississippi River at flood stage and with the sealed lift station underwater.

  • Clari-DAF Pretreatment System Reduces Chemical Consumption, Doubles Treatment Capacity
    Clari-DAF Pretreatment System Reduces Chemical Consumption, Doubles Treatment Capacity

    Together, two water treatment plants in Boulder, CO, have the capacity to treat 55 million gallons per day (MGD). When severe drought conditions restricted the source water supply of the Betasso WTP, the city decided to expand the capacity of the Boulder Reservoir Water Treatment Plant (WTP).

  • 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

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

More White Papers & Case Studies

WASTEWATER DISINFECTION PRODUCTS

Small Tank Mixing

Small Tank Mixing

Small tank mixing is a lower cost, simplified Rotamix system, using a Chopper Pump and external-mount nozzle assemblies. The external-mount nozzles are sandwiched between 6" ANSI flanges and provide fixed discharge angles off the tank wall.

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 D238™

NeoTech D238™

The NeoTech D238™ is specially designed to disinfect water and is an essential component in advanced oxidation processes.

Hydraulic Fracturing: Engineered Solutions For Effective, Efficient Water Management

Hydraulic Fracturing: Engineered Solutions For Effective, Efficient Water Management

The global oil and gas landscape continues to shift as producers increasingly turn to unconventional reserves, such as shale gas and tight oil.

NeoTech D228™

NeoTech D228™

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

NeoTech D222™

NeoTech D222™

The NeoTech D222™ is specially designed to disinfect water and is an essential component in advanced oxidation processes.

NeoTech D438™

NeoTech D438™

The NeoTech D438™ is specially designed to disinfect water and is an essential component in advanced oxidation processes.

TrojanUVSigna™ — Wastewater Disinfection System

TrojanUVSigna™ — Wastewater Disinfection System

Chlorine is not the only viable disinfection option for mid- and large-scale applications. With the TrojanUVSigna™, operators and engineers can confidently choose UV and benefit from its inherent safety features, cost-saving advantages and disinfection performance.

More Products

WASTEWATER DISINFECTION PODCASTS

The Importance of Drought: Good for Business?

The Importance of Drought: Good for Business?

Normally, when people hear the word ‘drought’ it’s thought of with a negative connotation. In the water business, however, that’s not always the case.

The Next Step In Advanced Treatment

The Next Step In Advanced Treatment

During ACE 2015, Xylem touted two advanced solutions that seek to change the water treatment game.

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.

More Wastewater Disinfection Podcasts
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WASTEWATER DISINFECTION VIDEOS

Trident® HS Package Water Treatment Plant Video

Trident® HS Package Water Treatment Plant Video

There are four stages in the Trident HS package treatment system, which provides multi-barrier protection for difficult-to-treat surface water, groundwater, industrial process water, and tertiary wastewater.

AccuFAS Aeration Pattern

AccuFAS Aeration Pattern

The Brentwood-engineered AccuFAS Submerged Fixed-Film system adds a fixed-growth surface for biomass to provide enhanced biological treatment and increase capacity for municipal and industrial wastewater. Composed of Brentwood’s structured-sheet, fixed-film media, AccuFAS was developed to optimize airflow and mixing while maximizing contact between the waste stream and biomass.

A Vacuum System That Truly Cleans The Basin Floor

A Vacuum System That Truly Cleans The Basin Floor

Brentwood’s SedVac Sediment Removal System can be used across a wide range of sludge removal applications because of its ability to remove the compression zone layer of settled solids that traditional pipe systems leave behind. SedVac’s unique design funnels the sludge and scrapes the floor, resulting in consistent solids removal of 3 percent concentration without wasting water or clogging.

Waste-To-Energy 101

Waste-To-Energy 101

According to the International Energy Agency, “Renewable, sustainable energy generation is projected to be the fastest-growing energy sector over the next two decades.” In fact, many countries, including the USA, encourage waste-to-energy systems through government financial incentives. Anaerobic Digesters reduce waste streams, control water pollution, divert organics from landfills, produce organic fertilizer and generate energy. Learn the basics here.

Small Tank Mixing Simulation, Part 2

Small Tank Mixing Simulation, Part 2

This video demonstrates how Vaughan Company's Small Tank Mixing Assembly can be utilized to mix only the bottom portion of a tank while leaving the top in a non-turbulent state.

More Videos

WASTEWATER DISINFECTION NEWS

  • New Technology Turns Manure Into Clean Water

    Imagine something that can turn cow manure into clean water, extract nutrients from that water to serve as fertilizer and help solve the ever-present agricultural problem of manure management.

  • High-Efficiency Water Treatment Using A Novel UV-Light System

    Many harmful substances in waste water stubbornly resist being broken down by biological waste water treatment plants. Fraunhofer researchers have developed a photochemical reaction system in which water can be reliably treated at high flow rates by UV light without having to add chemical catalysts.

  • 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.

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.