FROM THE EDITOR

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  A Step-By-Step Approach To Nutrient Removal

  As stricter ammonia and nitrate regulations get rolled out, the City of Boulder rolls right along with them, improving plant processes in stages to ensure continued compliance.

GUEST COLUMNISTS

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  USAID Water Strategy: Leveraging Science, Technology, And Innovation

  USAID recently published its five-year Water and Development Strategy that defines its approach to water programming. Described as the government’s first comprehensive strategy aimed at integrating water into all U.S. development funding and programs and a good first step, this 32-page document provides a framework for saving lives and advancing development through innovative investments in water, sanitation and hygiene. By Donna Vincent Roa, PhD, ABC, CSR-P

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  WERF Research Helps Cincinnati Use Innovative Biomarkers To Assess & Monitor Water Quality In National Scenic River

  In 1986, ambient water quality criteria recommendations from the USEPA were developed for recreational waters using E. coli as an indicator organism. With the benefit of advances in environmental microbiology, molecular tools and quantitative microbial risk assessment (QMRA), USEPA has released the recreational water quality criteria (RWQC) recommendations that reflect the risk to human health from fecal contamination. By Ting Lu, Vikram Kapoor, Biju George, MaryLynn Lodor, James Parrott, Deborah Metz, and David Wendell

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  Seattle Public Utilities Case Study: Using A Business Case Evaluation To Identify The Most Desirable Rehabilitation Outcome

  A recently published WERF report, Flood Grouting for Infiltration Reduction on Private Side Sewers (INFR5R11) provides results of a field test of the flood grouting process to seal laterals, sewer mains, and manholes. Prior to obtaining approval to proceed with this pilot project, a “business case” was prepared to compare the total life-cycle cost of the proposed option to other alternatives, which included joint grouting, pipe bursting, cast-in-place pipe (CIPP) lining, and replacement with upsized pipe. The amount of flow reduction was measured and compared that to the total project costs as tracked through Seattle Public Utilities’ cost accounting system. Researchers looked at the potential for using the technology to reduce the risk for future backups in Seattle’s Broadview neighborhood, as well as its applicability in other locations. By Barbara Swartz and Carita Parks

FEATURED PRODUCTS & SERVICES

Drop In Heat Exchangers

Drop in air-to-air Heat Exchangers remove waste heat from sealed electrical panels and enclosures using Noren heat pipe technology.

9210p On-line Total Organic Carbon Analyzer

OI Analytical introduces the Model 9210p On-Line Total Organic Carbon (TOC) analyzer. The 9210p uses proven heated persulfate oxidation with Solid State Non-Dispersive Infrared detector (SSNDIR) technology to monitor for organic contaminants in water streams for regulatory compliance and optimization of water treatment processes.

Model 2400 Optical Dissolved Oxygen Analyzer

The Reliant Model 2400 Optical Dissolved Oxygen (DO) Monitoring and Control System is an economical, full featured optical dissolved oxygen analyzer that brings full featured optical DO capability, and a long-life optical sensor that remains in calibration for at least a year.

Promag 10W

Promag measuring devices offer you cost-effective flow measurement with a high degree of accuracy for a wide range of process conditions.

Field Integration Unit

As the world's largest automation supplier, we have the resources and contacts to offer everything an approved system integrator offers, plus the added security of dealing with a leader in the industry.

The Duperon® FlexRake® FP

The Duperon® FlexRake® FP is designed for wastewater applications, though it is also used for open channels with clingy debris necessitating Thru-Bar Technology.

Air Blowers

Mass Transfer Systems offers air blowers for aeration systems, the bulk of which are either multistage cetrifugal or positive displacement blowers. MTS can provide technical assistance in selecting the blowers to best fit your project.

Point Of Use Systems For Arsenic Removal

ISOLUX TECHNOLOGIES, has developed multi-functional cartridge systems for arsenic reduction.

NO3D sc Nitrate Sensor

Use for continuous trending of nitrate levels to control the nutrient removal process in municipal wastewater treatment plants with less than 30% industrial waste.

RTP Tanks Repair Services

Plas-Tanks Industries offers the following services for fiberglass reinforced plastic (FRP) tanks

RECENT ARTICLES

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  Bioaugmentation In Sewer Network Reduces Sludge Production

  This article describes the effectiveness of bioaugmentation in the sewer network as a strategy to reduce sludge production. By Dr. Bulbul Ahmed, In-Pipe

FEATURED SUPPLIERS

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  Shelco Filters Shelco takes pride in providing a complete line of filters for a wide range of industrial applications including water and other in-plant liquids, gasses, foods, beverages, chemicals, petrochemicals, pharmaceuticals, cosmetics, photographic solutions, fuels, lubricants and plating solutions.
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  JCS Industries Inc. JCS Industries, Inc. was founded in 2002 as a product development company charged with developing an alternative to the current vacuum feed liquid doser technology for a worldwide manufacturer of water and waste treatment equipment. After one year of design and two years of beta testing, JCS developed the Model 4100 Automatic Vacuum Liquid Feeder.
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  WRT - Water Remediation Technology, LLC WRT provides effective processes for removing radium, uranium and other contaminants from water. Our complete package of services includes process equipment, proprietary treatment media, safe exchange of media, and proper handling and disposal of used media
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  Myron L Company The Myron L Company, originally founded in 1957 as a Research and Development company, is a privately owned and operated California Corporation

WATER ONLINE FEATURED VIDEO

Introduction To The Captivator Locking Fire Hydrant Cap Video

The Captivater from AMERICAN Flow Control helps prevent unauthorized hydrant use, reduces water theft, reduces hydrant vandalism, and lowers operation costs.

LATEST HEADLINES

• National Industry And Regulatory Experts Present Basis For Stray Gas Investigations And Water Management Associated With Unconventional Oil & Natural Gas Development
• Hach Launches DR 900 Handheld Colorimeter
• Innovyze Smart Water Network Modeling Technology Supports North Carolina Utility
• ARCADIS Promotes Ten Staff Members To AVP, VP, And Senior VP
• FCI Future-Ready ST100 Air/Gas Flow Meter At WEFTEC2013
• New Aqua MegaDisk™ Cloth Media Tertiary Filter Operates In 80% Less Space Than Sand Filters With Comparable Hydraulic Capacity

EXECUTIVE PODCAST SERIES

• Advanced Pump Design Enhances Performance, Thrills Customers

  With lift stations set among households and a pristine lake, failure is not an option for the Valley Rural Utility Company in Lawrenceburg, IN. The old lift stations were costing up to $30,000/year to maintain, due to poor design and persistent clogging. A new Flygt N-Pump has changed the utility’s course, however, proving with one (easy) installation the cost savings that can be gained through advanced impeller technology and remote SCADA operability.

• Water Online Radio: Tonka Innovations Address Latest Water Challenges

  Gary Warner, executive VP at the Tonka Equipment Company, talks to Water Online Radio about industry trends and the new technology Tonka has developed to address them.

• Water Online Radio: Exporting America’s Water Expertise

  Maureen Hinman, environmental technology trade specialist at the International Trade Administration at the U.S. Department of Commerce, describes the initiatives that could propel the American water market to new heights.

• Water Online Radio: American Iron, 100 Years (And Then Some) Strong

  Maury Gaston of American Ductile Iron Pipe and American SpiralWeld Pipe explains the genesis of the company more than a century ago, and why he thinks iron is the still the best pipe material.

• Water Online Radio: Severn Trent Steps Forward With New Technology

  John Dyson, director of North American sales for Severn Trent Services talks to Water Online Radio about the company’s latest technologies, including advances in UV disinfection and biological wastewater treatment.