DRINKING WATER REGULATIONS AND LEGISLATION

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WATER INDUSTRY FEATURES, INSIGHTS, AND ANALYSIS

  • Ultrasonic vs. 'Old School' Water Meters
    Ultrasonic vs. 'Old School' Water Meters

    In this Q&A, Water Online posed questions to Greg Land of Master Meter on the value of ultrasonic flow meters versus previously installed technologies.

  • Faster Time To Bill
    Faster Time To Bill

    What is the value of faster, more reliable water meter readings? According to Montgomery Water Works, it’s huge – both in terms of time to bill and in customer service. Watch this video to see how Neptune Territory Manager Kevin Smith helped provide the answers for the accurate information needed for monthly billing and more proactive management.

  • Behind The Screen: When Protecting MBRs, There’s More To Pre-Screening Technology Than Just Screens
    Behind The Screen: When Protecting MBRs, There’s More To Pre-Screening Technology Than Just Screens

    There’s no doubt that effective pretreatment enhances the efficiency and effectiveness of a membrane bioreactor (MBR) plant — removing hair, fibers, and inorganic solids from influent at the very start creates benefits that resonate throughout the entire process.  The heart of pretreatment is a good screen — but good screening technology goes well beyond the screen itself to include seals, cleaning mechanisms, and logic controls as well.

  • 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).

  • 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.

  • Ozone Trending As Reuse Solution
    Ozone Trending As Reuse Solution

    In many water-scarce parts of the country, today’s wastewater is tomorrow’s drinking water. With reuse increasing rapidly, effective disinfection is more important than ever before. One solution that many wastewater and water utilities are turning towards is ozone.

  • Diagnosing And Fixing Flow Measurement Problems
    Diagnosing And Fixing Flow Measurement Problems

    Utility personnel and engineers want to know more — now more than ever, due largely to drought and water scarcity concerns, according to Greg Webster of McCrometer.

  • 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.

  • Seven Tips To Cut Wastewater Aeration Energy Costs With Thermal Mass Flow Meters
    Seven Tips To Cut Wastewater Aeration Energy Costs With Thermal Mass Flow Meters

    One of the biggest expenses in wastewater treatment operations is the cost of energy to run the blowers and compressors that produce air for the aeration basins.

  • World’s Largest District Cooling Center Improves Operations And Eliminates Hazardous Delivered Chemicals With New Cooling Water Treatment
    World’s Largest District Cooling Center Improves Operations And Eliminates Hazardous Delivered Chemicals With New Cooling Water Treatment

    A major player in Chicago’s water treatment industry piloted MIOX water treatment technology for cooling tower water treatment in 2006.  Since proving MIOX’s Mixed Oxidant Solution (MOS) chemistry as a superior alternative to delivered biocides including bromine and isothiazoline, Thermal Chicago has continued to utilize MIOX systems with a recent upgrade and expansion into other facilities.

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DRINKING WATER PRODUCTS

Wallace & Tiernan® Chlorine Gas Feed Systems

Wallace & Tiernan® Chlorine Gas Feed Systems

About 100 years ago, Charles F. Wallace and Martin F. Tiernan installed the first chlorinator in New York, and since, chlorine gas has been the predominant chemical for the disinfection of water.

Continuous Backwash Sand Filters

Continuous Backwash Sand Filters

The continuous backwash upflow sand filter is an ideal technology for tertiary nutrient removal. The deep bed upflow approach allows the filter to operate continuously, as backwashing of the media is an integral part of the filtering process. In addition, the continuous backwash sand filter is easy to operate and allows for mechanical, chemical and biological filtration processes.

MEMCOR® Ultrafiltration Systems

MEMCOR® Ultrafiltration Systems

Our membranes and membrane systems reflect the advancements that have been made in the industry over the past three decades.

SL1000 Portable Parallel Analyzer™ (PPA) Platform

SL1000 Portable Parallel Analyzer™ (PPA) Platform

The new Hach SL1000 Portable Parallel Analyzer (PPA) performs the same tests with less than half the manual steps. Get highly accurate results, with less opportunity for errors, in a fraction of the time. Up to six parameters, tested simultaneously.

Separating VOCs From The Sample Matrix

Separating VOCs From The Sample Matrix

Purge and Trap Background 
When using a concentrator system, it is not essential to understand how it works. However, a good grasp of the fundamentals helps you prevent problems and assists you when you are faced with tasks such as method development and troubleshooting. This section is not intended to be a full theoretical evaluation of purge and trap gas chromatography. The main purpose is to help you develop an understanding of how and why compounds are concentrated.

Grundfos Booster Module Systems

Grundfos Booster Module Systems

The BMS range is a new range of booster modules for reverse osmosis and ultra-filtration applications that improve efficiency with a directly coupled pump powered by a permanent magnet motor and VFD.

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VIEWS ON THE LATEST REGS

  • 21 Questions For The EPA
    21 Questions For The EPA

    To celebrate the 40th anniversary of the Safe Drinking Water Act (SDWA), the U.S. EPA organized a Twitter chat (#safetodrink) as an open forum for questions and answers on SDWA issues, or whatever else popped up. Here's how it unfolded.

  • Drinking Water Protection — Are We Doing It Right?
    Drinking Water Protection — Are We Doing It Right?

    “We have analytical instruments that can see things in astronomically small numbers, but are we looking for the right things?”

  • How To Get State Regulators To Champion New Water Tech
    How To Get State Regulators To Champion New Water Tech

    What can be done to combat the risk-adverse nature of both the regulators and the technology purveyors? 

  • New Drinking Water Regulations Sought For Algal Toxins
    New Drinking Water Regulations Sought For Algal Toxins

    Excess nutrients, blue-green algae (cyanobacteria), and cyanotoxins have long been a problem for wastewater treatment plants — many states regulate nutrient levels in discharged water — but now drinking water plants are being eyed for regulation as well.

  • New Standard Applies To Every Water Manager, Everywhere
    New Standard Applies To Every Water Manager, Everywhere

    Innovation can take many forms. In the water and wastewater industry, new and emerging technologies get most of the credit for being innovative and potentially transformative. However, new modes of thinking can have equal and sometimes greater impact.

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MORE WATER INDUSTRY FEATURES

  • The Grand Unified Theory Of Probes
    The Grand Unified Theory Of Probes

    Scientists spend their lives searching for simplicity.

  • Retrofit Wastewater Pumps Increase Operational Efficiencies, Reduce Maintenance
    Retrofit Wastewater Pumps Increase Operational Efficiencies, Reduce Maintenance

    With a population of 677, the small town of Harleyville, SC, located 60 miles northwest of Charleston, was looking to upgrade its aging lift stations to increase efficiencies, lower utility costs and reduce overall pump maintenance for its municipal wastewater facility.

  • Dissolved Oxygen Measurement In A Wastewater Treatment Plant
    Dissolved Oxygen Measurement In A Wastewater Treatment Plant

    Breakdown of organic wastes entering a wastewater treatment plant is accomplished by using a biomass or blend of beneficial microscopic organisms, bacteria, and solids. This converts the non-settleable solids (dissolved and colloidal matter) into settleable solids, carbon dioxide, water, and energy.

  • A New Paradigm In Aeration Technology
    A New Paradigm In Aeration Technology

    The DO2E organization sprang from one individual’s attempt to solve an aeration problem in a fish hatchery and realizing that his device to do so had many other applications as well. This device broke up algal blooms as well as aerating, and it was only a short step to modify it into breaking up FOG (fats, oils, and grease) deposits in grease traps and lift stations. This device was patented, thus DO2E was born.

  • Remote Pressure Monitoring System
    Remote Pressure Monitoring System

    The ability to continuously and remotely monitor pressure at any point within potable water distribution systems is crucial to ensuring access to safe, cleaning drinking water.

  • High-Power UV Lamps Lower Replacement Costs, Reduce Maintenance
    High-Power UV Lamps Lower Replacement Costs, Reduce Maintenance

    The Tesla Water Treatment Facility is located in Tracy California approximately 60 miles west of San Francisco in the Central Valley of California. Since 1934, San Francisco has received water from the Hetch Hetchy Reservoir in Yosemite National Park via the 167 mile long Hetch Hetchy Aqueduct. Due to the pristine nature of the water source, the water is unfiltered and was only chlorinated at the 75 year old Tesla Portal facility.

  • Reverse Osmosis System Eliminates Massive Waste Removal Costs
    Reverse Osmosis System Eliminates Massive Waste Removal Costs

    This leading rod and wire mill requires water for cooling steel and tools in its manufacturing process.

  • biottta™ Biotreatment Packaged Plants Sales Literature

    Groundwater is the primary water source for most communities in North America. With an increasing need to provide treatment for a growing list of contaminants, limited support staff, and shrinking operating budgets, water utilities face many hardships. Fortunately, biottta leverages nature to offer an affordable and sustainable solution for wellhead treatment of inorganic and organic contaminants.

  • 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?

  • Calculating Treatment Plant Energy Consumption
    Calculating Treatment Plant Energy Consumption

    How do you get a handle on your plant’s overall energy consumption? Outside of the EPA’s Energy Star program for water and wastewater, how do you benchmark your performance?

  • North Carolina Treatment Plant Eliminates Taste And Odor Issues With Ozonation
    North Carolina Treatment Plant Eliminates Taste And Odor Issues With Ozonation

    Enactment of the Long Term 2 Enhanced Surface Water Treatment Rule and the Stage 2 Disinfectant-Disinfection Byproduct Rule (D/DBPR) will require both large and small drinking water utilities to reduce total organic carbon (TOC), Cryptosporidium, and disinfection byproducts (DBPs) in the treated drinking water distributed to the public.

  • Clari-DAF® System Provides Effective TOC Removal For Cambridge WTP
    Clari-DAF® System Provides Effective TOC Removal For Cambridge WTP

    To ensure treated water complied with the most stringent drinking water standards, including the Environmental Protection Agency (EPA) Stage 2 Disinfectants and Disinfection Byproducts Rule (State 2 DBPR), the City of Cambridge, MA, WTP decided to implement a robust multibarrier treatment solution.

  • Behind The Screen: When Protecting MBRs, There’s More To Pre-Screening Technology Than Just Screens
    Behind The Screen: When Protecting MBRs, There’s More To Pre-Screening Technology Than Just Screens

    There’s no doubt that effective pretreatment enhances the efficiency and effectiveness of a membrane bioreactor (MBR) plant — removing hair, fibers, and inorganic solids from influent at the very start creates benefits that resonate throughout the entire process.  The heart of pretreatment is a good screen — but good screening technology goes well beyond the screen itself to include seals, cleaning mechanisms, and logic controls as well.

  • Monitoring ORP In Private Wells To Determine Arsenic
    Monitoring ORP In Private Wells To Determine Arsenic

    Arsenic is one of the most common elements in the earth’s crust and is commonly found in many locations at varying concentrations. The Midwestern United States has locations that are heavily laden with arsenic because of certain geological settings and conditions. This naturally-occurring arsenic can leach into groundwater potentially causing elevated levels of arsenic in drinking water supplies. The primary pathway that exposes arsenic to humans is through drinking water (Thomas et. al., 2008).

  • How To Wipe Out 'Flushable' Wipes
    How To Wipe Out 'Flushable' Wipes

    More than two years ago, Jefferson Parish, LA, installed Flygt Experior pumps at their worst-performing lift stations — sites that were plagued by clogging, overflows, and daily maintenance requirements. One of the main culprits was nonwoven fabrics, aka "flushable" wipes, which have become a nationwide nuisance for wastewater utilities.

  • NeoTech D338™ Datasheet

    The NeoTech D338™ is specially designed to disinfect water and is an essential component in advanced oxidation processes.

  • 5 Quick Tips On Mechanical Aeration
    5 Quick Tips On Mechanical Aeration

    Are you not getting the aeration performance you expect? Perhaps you’re not even aware that your system is lagging. In this age of doing more with less — practically a mandate considering high water-quality demands coupled with tight municipal budgets — operational optimization is essential. Since mechanical aeration is a cornerstone of successful wastewater treatment, it’s a natural place to focus your optimization and troubleshooting efforts.

  • Closed Circuit Desalination Simplifies Reverse Osmosis To Drive Down Energy Costs
    Closed Circuit Desalination Simplifies Reverse Osmosis To Drive Down Energy Costs

    As industry, agriculture and residential consumers compete for available freshwater sources, desalination continues to evolve as a viable process for increasing the available water pool. Industrial water is perhaps most critical as it accounts for as much as sixty percent of the freshwater being withdrawn in the United States today. Rising wastewater disposal costs, sustainability initiatives, and higher water efficiency standards are all fueling interest from industry in onsite brackish water reuse. However, municipal interest in water-stressed areas of the world is also on the rise.

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