WASTEWATER REGULATIONS AND LEGISLATION

More From Wastewater Regulations and Legislation

WASTEWATER FEATURES, INSIGHTS AND ANALYSIS

  • New And Innovative Rare Earth Technology For Low-Level Phosphorus Removal
    New And Innovative Rare Earth Technology For Low-Level Phosphorus Removal

    With environmental regulations continuing to restrict the discharge of phosphorus from wastewater treatment facilities, traditional methods of phosphorus removal are proving inadequate.

  • Shear Power: How To Defeat FOG Once And For All
    Shear Power: How To Defeat FOG Once And For All

    Overcome the problem of fats, oils, and grease (FOG) by understanding it and choosing the right equipment.

  • Can Nitrogen Removal And Enhanced Biological Phosphorus Removal Coexist?
    Can Nitrogen Removal And Enhanced Biological Phosphorus Removal Coexist?

    Enhanced biological phosphorus removal (EBPR) is considered the most economical and sustainable way to remove phosphorus from municipal wastewaters, but its integration with nitrogen removal puts EBPR at risk for failure.

  • How To Select The Most Effective Blower Technology For Wastewater Applications
    How To Select The Most Effective Blower Technology For Wastewater Applications

    Given numerous variables when selecting an aeration blower system for wastewater applications, and equally numerous claims by technology providers, it is not surprising that confusion exists. Worse than confusion is the disappointment that results when a blower technology fails to perform as anticipated — and operating cost and efficiency benefits go unrealized.

  • Dairy Collective Reaps Green Energy And Environmental Benefits With Anaerobic Wastewater Technology
    Dairy Collective Reaps Green Energy And Environmental Benefits With Anaerobic Wastewater Technology

    One of the United States’ newest dairy processing plants features advanced wastewater treatment technology that not only radically improves biomass recovery and effluent quality, but also harnesses green energy from waste streams to drive production processes and reduce its carbon footprint.

  • Why All The Hype About Chlorine Gas Safety?
    Why All The Hype About Chlorine Gas Safety?

    Remember when “Little Old Lady” Clara Peller rolled up to the drive-through window of Big Bun and asked “Where’s the beef?” She was asking a literal question, but also making a figurative statement. 

  • 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

  • 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.

  • 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. 

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WASTEWATER PRODUCTS

ULTRAPEN™ PT1 Electrical Conductivity (EC)/TDS/Salinity Pen

ULTRAPEN™ PT1 Electrical Conductivity (EC)/TDS/Salinity Pen

This instrument is designed to be extremely accurate, fast and simple to use in diverse water quality applications.
Thermatel® TD1/TD2 Thermal Dispersion Flow/Level/Interface Switch

Thermatel® TD1/TD2 Thermal Dispersion Flow/Level/Interface Switch

TD1 and TD2 Thermal Dispersion flow/level/interface switches provide a new level of performance and reliability not found in previous switches. 

Flygt Vertical Pumps

Flygt Vertical Pumps

Flygt’s line of column pumps are available to suit a wide range of applications and flow volumes. When used with pump station design software SECAD from Xylem, you can design state of the art pump stations with a small footprint in just a few minutes.

Sewper Rx Sludge Reduction System

Sewper Rx Sludge Reduction System

A patented polymicrobial blend of facultative bacteria specifically selected for their ability to degrade organic waste and eliminate noxious odor.

Hydromatic 4" Discharge Submersible Solids Handling Pumps

Hydromatic 4" Discharge Submersible Solids Handling Pumps

Passes a full 3" diameter non-deformable spherical solid per the Ten States Standards

VARI-CANT® Jet Aeration Systems

VARI-CANT® Jet Aeration Systems

Our VARI-CANT® jet aeration systems utilize proven principles of jet aeration, combined with state-of-the-art design and materials, resulting in a system with superior performance, efficiency and trouble-free operation.

The VARI-CANT® jet aeration system intermixes air with a motive liquid and injects the stream into the wastewater. The aerator itself consists of two jet nozzles. The motive liquid - recirculated mixed liquor is discharged from an inner nozzle into an outer mixing nozzle . Compressed atmospheric air is introduced, and sheared into tiny bubbles which are entrained in the motive liquid stream. As the stream is discharged into the surrounding mixed liquor, it forms a highly turbulent jet plume. The plume entrains the surrounding mixed liquor and brings it into contact with the tiny air bubbles, resulting in a extremely high oxygen transfer rate.

Leopold® elimi-NITE® 2.0 Denitrification System by Xylem

Leopold® elimi-NITE® 2.0 Denitrification System by Xylem

The Leopold elimi-NITE® 2.0 system is the next step in reducing nutrients in the effluent stream of a wastewater treatment plant.

Surface Drainage Matting

Surface Drainage Matting

Incorporating a fused, entangled filament core and a geotextile fabric, Enkadrain surface drainage matting is designed to relieve hydrostatic pressure
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VIEWS ON THE LATEST REGULATIONS

More From Views on the Latest Regulations

MORE WASTEWATER INDUSTRY FEATURES

  • In California, Come Rain Or Shine, Upfront Efficiency Is Always In Style
    In California, Come Rain Or Shine, Upfront Efficiency Is Always In Style

    Caught between a withering drought and floods from winter storms, California faces the worst of both worlds—dealing with scarcity as well as stormwater.  America, and much of the world, is watching to see how this trendsetting state handles those challenges.  After generations of setting America’s style, from cowboys to Beatniks to Beach Boys to Silicon Valley billionaires, California can set perhaps its most important trend yet—it can lead the way to a more water-efficient America.  It has to.  The good news is that it can. By Jim Lauria, Senior Vice Director-Water Treatment, Bilfinger Water Technologies

  • WWEMA Window: Tackling Today’s Top Challenges
    WWEMA Window: Tackling Today’s Top Challenges

    On September 24, 2013, the Water and Wastewater Equipment Manufacturers Association (WWEMA) held its annual President’s Council at the Chicago O’Hare International Airport. This is an informative one-day event where top executives of WWEMA-member companies get together to share and discuss industry trends, national and international economic news, and upcoming regulatory issues. This was my fifth year attending this event. Each year the insight that is shared is amazing, and 2013 was no exception. By Frank J. Rebori, president of Smith & Loveless, Inc. and vice chairman of WWEMA 

  • Do You Know The Value Of Decentralized Infrastructure?
    Do You Know The Value Of Decentralized Infrastructure?

    According to the National Onsite Wastewater Recycling Association, onsite and decentralized wastewater treatment systems are an important part of a country’s permanent wastewater infrastructure. 

  • Cooling Water Intake Decisions Are Heating Up
    Cooling Water Intake Decisions Are Heating Up

    Now that the U.S. Environmental Protection Agency (EPA) has issued its rule for cooling water intakes under Section 316(b) of the Clean Water Act, the race is on for more than 600 power plants and manufacturing facilities to comply.  Right now, there is probably no better example in the water industry of how carefully choosing among compliance options can lead to millions of dollars in cost savings. By Jim Lauria, Senior Vice Director-Water Treatment, Bilfinger Water Technologies

  • WWEMA Window: The Past, Present, And Future Of Water
    WWEMA Window: The Past, Present, And Future Of Water

    As I am writing this article, I find it hard to believe that another year has zipped by and evaluations of all our prognostications from the previous year are now subject to review and scrutiny.  2013 has been an interesting year in the water and wastewater market!

  • WWEMA Window: ‘Nondispersibles’ Turning Sewers Into Nightmares Nationwide
    WWEMA Window: ‘Nondispersibles’ Turning Sewers Into Nightmares Nationwide

    Increasingly, wipes are causing serious issues for wastewater treatment system operators. Many of the wipes entering the sewage system are not dispersible and technically not flushable.

  • Onsite Wastewater Treatment Technologies To Be Considered For Large And Small Projects
    Onsite Wastewater Treatment Technologies To Be Considered For Large And Small Projects

    There is a greater need to raise awareness for better sanitation, water reuse, and storm water solutions with better simple, low-cost, robust technology.

  • Howard County, Maryland Sets The Pace In Restoring Chesapeake Bay Ecosystem
    Howard County, Maryland Sets The Pace In Restoring Chesapeake Bay Ecosystem

    Howard County, Maryland, Bureau of Utilities recently completed the $92-million Addition No. 7 project at the Little Patuxent Water Reclamation Plant (LPWRP) to improve the quality of the plant’s effluent discharge and to reduce harmful nutrients reaching Chesapeake Bay. The project’s various increments took over five years to complete and incorporated innovative design solutions and state-of-the-art technologies for denitrification, aeration and disinfection. The project presents a model for Maryland’s 66 largest wastewater treatment plants and possibly procurement of municipal facilities elsewhere facing increasingly stringent regulatory changes.

  • WWEMA Window: Bridging The Optimization Gap
    WWEMA Window: Bridging The Optimization Gap

    The term “optimization” is becoming increasingly ubiquitous in our industry. Search almost any conference program, read through a trade journal, or sit in an annual planning meeting and you are likely to see or hear the word. However, as it gains popularity, optimization may be generating more questions than answers. Utilities often ask what optimization means and how to get started. For those that have already made changes, they may be asking if their utility is fully optimized.  By Kurt Tyler, Hach Company

  • Troubleshooting Nitrification And Denitrification In Wastewater
    Troubleshooting Nitrification And Denitrification In Wastewater

    The proper tools are essential to fixing any problem. Over the years, Ohio EPA’s Compliance Assistance Unit (CAU) has helped dozens of water resource recovery facilities (WRRF) get back into and maintain compliance with NPDES discharge permits. Their field toolkit has included an assortment of batch sampling kits and handheld instruments. Each tool had its place but each also had limitations and, as a result, the compliance puzzle often was missing important pieces. Increasingly, as nutrient limits were incorporated into discharge permits, the missing piece was characterizing the dynamics of nitrification and denitrification. By Patrick Higgins

  • Rethinking Old Standards:  A Few Small Changes Pave Way For Innovation
    Rethinking Old Standards: A Few Small Changes Pave Way For Innovation

    Innovation doesn’t necessarily require a brand new concept.

  • Flood Improvement And LID Modeling Using <B>XP‐SWMM</b>
    Flood Improvement And LID Modeling Using XP‐SWMM

    Over the years, a number of severe storms have impacted the Harris Gully watershed, including Tropical Storm Allison, which resulted in $5 billion in damages in 2001. Inundation was especially severe at the downstream portions of Harris Gully, where Rice University and the Texas Medical Center are located. A1D/2D hydraulic model (XPSWMM) was instrumental in simulating and evaluating the effects of a proposed drainage alternative.

    By Andrew Juan, Dr. Nick Fang, and Dr. Philip Bedient, Rice University

  • Little John Digester Product Overview

    DO2E’s patented “Little John Digester” system was designed for the oxidation and removal of F.O.G. (Fats, Oils, & Grease), matting and odor, and corrosion in commercial and residential lift stations, grease traps, and wet wells all by utilizing the latest “Green” technology.

  • Little John Digester Demonstration Video
    Little John Digester Demonstration Video

    DO2E’s patented “Little John Digester” system was designed for the oxidation and removal of F.O.G. (Fats, Oils, & Grease), matting, and odor in commercial and residential lift stations, grease traps, and wet wells all by utilizing the latest “Green” technology.

  • A New, Cost-Efficient Way To De-Sludge Your Lagoon
    A New, Cost-Efficient Way To De-Sludge Your Lagoon

    Most small towns, all over the world, utilize lagoons for treating their wastewater. Many rural industries also utilize lagoons for storm-water and wastewater treatment. While industrial plants may be able to pay for activated sludge treatment of one design or another, small municipalities simply do not have a choice in treating their small populations’ wastes. If the town’s population is not growing, the costs imposed for maintaining a wastewater plant are just not viable on a rural community’s, often, declining budget. The ongoing costs of trained personnel, electricity, and plant maintenance for a wastewater plant is just too high for communities with limited budgets. By Jim Dartez

  • Technical Experts Key To The Future Of Water
    Technical Experts Key To The Future Of Water

    Water is a complex, challenging field— a fact that should be better promoted if the industry wants to move forward, says Rich Lowrie, the water and wastewater industry manager with Krohne.

  • The Basics: Keeping Our Water Clean Requires Monitoring
    The Basics: Keeping Our Water Clean Requires Monitoring

    Keeping the water in our lakes, rivers, and streams clean requires monitoring of water quality at many points as it gradually makes its way from its source to our oceans. Over the years ever increasing environmental concerns and regulations have heightened the need for increased diligence and tighter restrictions on wastewater quality.

  • 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.

More From More Wastewater Industry Features