WASTEWATER DISINFECTION WHITE PAPERS & CASE STUDIES

UV System Provides Safe, Effective Disinfection For Wastewater Treatment Plant On The Hudson River

The communities serviced by the Rensselaer County Sewer District, collectively known as the Albany Pool, have combined sewer systems (CSS) that bring stormwater, sewage and industrial wastewater directly to the wastewater treatment facility. When a storm or snow melt results in exceeded capacity, local waterways become contaminated, resulting in a significant environmental challenge, especially in a community where recreational swimming, boating and fishing are popular in warmer months.

  • Activating The Sludge In Small Municipal Facultative Waste Lagoon Systems
    Activating The Sludge In Small Municipal Facultative Waste Lagoon Systems

    Wastewater treatment lagoons were originally facultative in design — shallow, single and multi-cell lagoon systems that counted on wind, sunlight, anaerobic bacteria, and time for the digestion of the organic components of the wastewater.

  • BNR + MBR Equals Success At Water Reclamation Facility
    BNR + MBR Equals Success At Water Reclamation Facility

    Biological Nutrient Removal (BNR) is allowing many wastewater treatment plants to achieve extremely high effluent quality. Still, for some applications even the most advanced BNR processes can’t address concerns with trace organics, pharmaceuticals, and other endocrine disrupting compounds (EDCs).

  • 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

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.

More White Papers & Case Studies

WASTEWATER DISINFECTION PRODUCTS

ReFleX™ Efficiency

ReFleX™ Efficiency

For both disinfection and TOC-reduction applications, NeoTech Aqua Solutions’ patented ReFleX™ UV chamber technology represents the state-of-the-art in high-efficiency UV systems by reflecting over 99% of the UV we generate back into the water.

MicroDynamics® Closed Vessel Microwave UV System

MicroDynamics® Closed Vessel Microwave UV System

The new MicroDynamics® CV02 Closed Vessel Ultraviolet (UV) system is a patented design from Severn Trent Services. The system uses microwave energy to provide consistent strength UV disinfection for a variety of applications.
NeoTech D222™

NeoTech D222™

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

Oxelia Oxidation-Enhanced Biologically Active Filtration for Drinking Water

Oxelia Oxidation-Enhanced Biologically Active Filtration for Drinking Water

In the battle with hard-to-treat contaminants, drinking water just got a powerful new ally. Leopold Oxelia™ oxidation-enhanced biologically active filtration system.

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.

NeoTech D238™

NeoTech D238™

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

NeoTech D228™

NeoTech D228™

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

High Speed CSO Filtration System

High Speed CSO Filtration System

As measures of improving the combined sewer system, this high rate filtration system filters the rain water, which flowed directly to the river before, by using our original filter media. This new treatment system can be installed in the existed facilities and supplies stable filtrations for rainfall flow fluctuation.

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WASTEWATER DISINFECTION PODCASTS

The Water-Reuse Drum Beats Louder

The Water-Reuse Drum Beats Louder

Experts agree: “The line is getting very gray between wastewater and drinking water.”

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.

More Wastewater Disinfection Podcasts
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WASTEWATER DISINFECTION VIDEOS

Largest Compressible Media Filter In The World Implemented

Largest Compressible Media Filter In The World Implemented

When the Springfield, OH, plant was presented with the mandate to meet stricter guidelines for the control and treatment of combined sewer overflows, it started down a road that would eventually lead it to the largest compressed media filter installation in the world.

Grundfos Partners With Hytec Water System To Save Time And Money

Grundfos Partners With Hytec Water System To Save Time And Money

The Hytec Water System is designed to solve water management problems in high rise condominium and commercial buildings. This video shows how a feed pump system by Grundfos helps Hytec deliver a better package to their customer. The project featured in this video is a large complex in Vancouver that services over 450 residential units in addition to commercial units such a grocery store and coffee giant. Automation and the accuracy of the Grundfos pump system saves time and money.

SMART Digital Dosing Video

SMART Digital Dosing Video

Grundfos SMART Digital pumps offer exciting technology with clear advantages over other metering pumps that are easily understood and demonstrated. SMART digital dosing pumps DDA, DDC, DDE offers cost-effective, precise feed solutions with modularity, simplicity, and flow intelligence. With our vast knowledge of the markets and processes of water treatment, we possess the ability to adapt to customer requirements and tackle nearly any problem with a SMART solution.

Grundfos iSOLUTIONS: Dosing and Disinfection

Grundfos iSOLUTIONS: Dosing and Disinfection

As customers demand better performance, reliability and energy efficiency in their pumps, Grundfos has a new approach to optimization. It is not just about the pump any more, but a better system control and design. Seamless connectivity relays the intelligence of Grundfos iSOLUTIONS. With a comprehensive range of communication offerings for both system integration and remote management, the user gets control and monitoring solutions that minimize time spent on data collection and maintenance.

RWL Water Supplies Packaged WWTP For Treatment And Reuse

RWL Water Supplies Packaged WWTP For Treatment And Reuse

Wastewater previously considered a disposal liability is now a valuable resource. RWL Water supplied a tailor-made packaged wastewater treatment plant at the Boleo Mine in Santa Rosalia, Mexico to treat domestic wastewater. After treatment, the water is used for dust control on the roads, for toilets, and for irrigation. Watch the video case study here.

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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.