• Floating Islands For Stormwater And Other Applications
    Floating Islands For Stormwater And Other Applications

    Floating islands, also known as floating treatment wetlands (FTWs), are a relatively new technology for improving water quality and creating habitat.  Over 5,000 floating islands have been installed around the world in the past decade.

  • New Developments In Thermal Dispersion Mass Flow Meters
    New Developments In Thermal Dispersion Mass Flow Meters

    This paper describes a newly developed microprocessor-based thermal dispersion mass flow meter that uses four temperature sensing elements in its flow sensor instead of the traditional two elements and automatically manages changes in gas selection, gas temperature, gas pressure, and outside temperature. By John G. Olin, Ph.D., Founder/Chairman, Sierra Instruments

  • California Drought Crisis: Billions Of Gallons Of Water Are Lost To Leaks Each Year
    California Drought Crisis: Billions Of Gallons Of Water Are Lost To Leaks Each Year

    Amid extensive efforts to crack down on household water use in California, some experts say the best solution is simply plugging leaks. 

  • Detroit Reaches Water, Sewer Deal
    Detroit Reaches Water, Sewer Deal

    Following months of contention, bankrupt Detroit finally reached a deal to shore up its water and sewer finances, potentially saving the city money and funding improvements to its water system. 

  • Tackling The Drought: The Relationship Between Water Law And Water Budget
    Tackling The Drought: The Relationship Between Water Law And Water Budget

    Natural resource management usually involves more than science and engineering, it intersects law, policy, and politics.  Nowhere is this truer than in the regulation of water.

  • A Tale Of Two Thermals: Capillary And Immersible
    A Tale Of Two Thermals: Capillary And Immersible

    For gas mass flow measurement and control, Sierra offers the broadest selection of thermal mass flow measurement products on the market. By Mark McMahon, Scientific Product Manager, Scott Rouse, Industrial Product Manager, Sierra Instruments

  • In-Situ Calibration: Methods And Pitfalls Of Thermal Mass Flow Meter Sensor Field Validation
    In-Situ Calibration: Methods And Pitfalls Of Thermal Mass Flow Meter Sensor Field Validation

    Mid-to-large size facilities and campuses inevitably have hundreds of ow instruments to monitor, maintain, and repair. For a reliability engineer, ensuring that all instrumentation meets ISO 9000 or similar standards is a time-consuming responsibility. By Matthew J. Olin, President & CEO, Sierra Instruments, Inc.

  • Man-Made Wetlands Help Utilities Survive The Drought
    Man-Made Wetlands Help Utilities Survive The Drought

    As severe drought continues to afflict various states, some utilities are relying on a key innovation to help them get through it: man-made wetlands systems. 

  • Federal Report: EPA Fracking Oversight Not Enough
    Federal Report: EPA Fracking Oversight Not Enough

    The federal Government Accountability Office (GAO) recently called out the EPA for not doing enough to protect drinking water from risks posed by oil and gas companies.

  • Math Solutions: Volume Calculations
    Math Solutions: Volume Calculations

    Water Online’s “Math Solutions” series, presented by wastewater consultant and trainer Dan Theobald (“Wastewater Dan”), provides an understanding of the sometimes difficult calculations involved in achieving wastewater operator certification.

  • New York City’s Water Supply In Danger
    New York City’s Water Supply In Danger

    Should New York City residents be worried about their water supply? 

  • East Bay MUD Uses Custom Valve, Reduces Water Pressure And Gains Surge Protection
    East Bay MUD Uses Custom Valve, Reduces Water Pressure And Gains Surge Protection

    As an engineer, your day-to-day responsibilities often include staying up to date on best-in-class applications and specifications. But whether you’re charged with designing a water treatment facility or pump station, or simply supervising an existing system, the equipment you select must be vetted. This is generally a challenge for engineers because many companies are vying to have their products deemed as the best solution, yet visibility into those claims is often limited.


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Water Online - News, Innovations, And Thought Leadership On The Water And Wastewater Industry


Three of our businesses (Salsnes Filter, TrojanUV, and US Peroxide) will be at WEFTEC 2014. Over the past few years these businesses have expanded their product lines and unveiled some very innovative water and wastewater treatment products. These solutions are now installed in facilities throughout the world, and will be on display in New Orleans in booths 6829 and 6929. We look forward to seeing you there.

Find out more at www.trojantechnologies.com.



WEFTEC® brings the latest in innovative water quality solutions. Offering the highest value by being priced lower than any other water quality conference of its kind, WEFTEC provides the most comprehensive educational content and largest annual water quality exhibition in the world. With nearly 1,000 exhibiting companies, 145 technical sessions, 31 workshops, 11 mobile sessions, and 8 facility tours, join us at WEFTEC 2014, and Make THE Water Quality Event YOUR Water Quality Event! Register now.


Forty-X™ Disc Filter

Forty-X™ Disc Filter

The Forty-X™ disc filter from Evoqua Water Technologies is the ultimate barrier in tertiary filtration. It captures more solids in a smaller footprint with a pleated media design and has evolved to incorporate X-tra's that are important in woven cloth media filtration

IFS - Internally Fed Screen

IFS - Internally Fed Screen

The IFS Series of internally fed rotary screens have cylindrical drums mounted horizontally on four shaft-mounted trunnions that are supported on pillow block bearings.
Flex-Lok Ball Joint Pipe

Flex-Lok Ball Joint Pipe

AMERICAN Flex-Lok ball joint pipe incorporates a very flexible ball-and-socket type joint for use in installations such as subaqueous pipeline construction. The provision for liberal changes in alignment, with available joint deflections of up to 15° in any direction, as well as its rugged features, make Flex-Lok ball joint pipe especially tough and adaptable.

Bryneer™ Brine System

Bryneer™ Brine System

The Bryneer™ bulk salt storage and brinemaker is the first brining system that is completely designed and manufactured by a fiberglass reinforced plastic (FRP) fabricator.
TruLab pH 1110 Laboratory Benchtop Meter

TruLab pH 1110 Laboratory Benchtop Meter

The YSI TruLab® line includes the 1110 (single channel), 1310 and 1310P (single channel) and 1320 and 1320P (dual channel) instruments providing easy-to-use and calibrate instruments ideal for the laboratory.

WEF Events

Network with colleagues. Listen and learn from well-respected experts in the water quality field. Advance your career potential. Absorb new technologies presented through hands-on technical sessions and workshops. Learn about the latest regulations that will make your job safer and more efficient. Attend your local MA meeting and let your voice be heard. WEF events set the benchmark for training - and are for those professionals committed to enhancing the global water environment...
Jet Aeration

Jet Aeration

The Mass Transfer Systems bi-directional jet aerators are designed with jet aeration nozzles installed on both sides of the liquid / air jet aeration manifold. This configuration is most applicable for square or rectanglular tanks, larger lagoons, and sequence batch reactors where directional flow patterns are not desired
Sensus iPERL Residential Water Meter

Sensus iPERL Residential Water Meter

The Sensus iPERL residential water meter provides technologically unprecedented low flow accuracy, allowing customers to capture both lost water and revenue. With no moving parts, the iPERL requires no additional maintenance and is resistant to wear, retaining its accuracy for the life of the unit. Lead-free, the iPERL’s composite alloy flow tube meets government and industry regulatory requirements and maintains stability through a wide range of temperatures. Designed to boost operational efficiency and increase returns, the iPERL system integrates seamlessly with the Sensus FlexNet™ communication network, offering water utilities a wide range of remote system management options.

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The Benefits Of Ductile Iron Pipe

The Benefits Of Ductile Iron Pipe

V-Bio Polyethylene Encasement is the latest scientific advancement in corrosion control for ductile iron pipe.  In this interview with Water Online, Maury Gaston of American Ductile Iron Pipe and American SpiralWeld Pipe talks about the many benefits of iron pipe and the company’s improved polyethylene encasement, including how its revolutionary formulation allows for complete confidence on the part of the owner, engineer and municipality that no matter how aggressive the soils, the rugged iron pipe installed will last for generations. 

Desalitech ReFlex Reverse Osmosis Technology Demonstration

Desalitech ReFlex Reverse Osmosis Technology Demonstration

ReFlex products feature patented Closed Circuit Desalination (CCD)  technology and are uniquely capable of maximizing recovery from challenging waters at record low energy consumption levels. This demo video reflects the actual performance of the ReFlex RO unit as reflected in the PLC HMI. The time is fast forwarded and reflects a total sequence time of 32.5 minutes. The system includes all basic ReFlex equipment: pumps, instruments, micron filter, and valves.

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Neptune Leads The Way In Performance And Compliance

Each utility has its own unique needs, based on size, geography, infrastructure, and other factors. Neptune makes it a point to understand your specific needs so that we can offer a solution that suits you the best. Our people are trained to help you determine the best meter reading systems and tools that can be used to meet those needs.


Our current premier partner is:

Click here to view a complete listing of our premier partners.


Providing expert insight into the most important topics in the water and wastewater industry.

  • Includes:
    Biological Nutrient Removal

    Direct Potable Reuse

    Crypto Detection
  • 2014 Innovations Water Magazine - Digital Magazine
    Deep Drilling For Groundwater

    Top Water Technology Sites

    Tightening Water Regulations
  • 2014 Clean Water Magazine - Digital Edition
    Non-Revenue Water

    Next-Generation Arsenic Removal

    DBPs: Treatment Options And Challenges
  • Includes:
    Biological Nutrient Removal

    Activated Sludge Instrumentat

    Advanced Oxidation Processes
  • Includes:
    EPA Priorities

    Real-time Bacterial Sensors

    Sludge Pretreatment


Water Online is the leading source of technical information and thought leadership for the drinking water and wastewater treatment community. If you are an operator, municipal manager, engineering consultant or industrial plant manager involved in the design or maintenance of stormwater, clean water and wastewater systems, you now have access to a comprehensive Web community delivering the latest updates on water and wastewater collection, treatment and distribution technologies to give you the knowledge to succeed in your industry.

In providing this technical information, the site offers detailed coverage of the basic operational elements of the water and wastewater industry: the resource management, supply, treatment and distribution of drinking water and the collection, treatment and disposal of stormwater and wastewater. Water Online covers the many ancillary functions that are required such as: nutrient removal, contaminant removal, wastewater aeration, water instrumentation, utility management and automatic meter reading (AMR), water quality analysis, water membranes, reverse osmosis and desalination, drinking water disinfection, wastewater filtration, pumps, flow control & measurement, stormwater management and sludge conditioning and disposal.

Water Online serves the information needs of engineers, water management planners, operational managers, consultants, elected officials, government personnel and others who are involved in the municipal water supply industry, and the municipal and industrial wastewater treatment field. Reflecting the dynamic and interactive character of the Web, Water Online is the most convenient source of technical, operational, product, management and regulatory information available for the water and wastewater industry.

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