Newsletter | August 28, 2014

08.28.14 -- Readers' Choice -- Top 10 Podcasts; Guidelines For Grit Pumping

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Featured Articles

Guidelines For Grit Pumping
By Isaiah LaRue, municipal wastewater systems manager, Smith & Loveless Inc.
Efficient grit removal in wastewater resource and recovery facilities (WRRFs) is more crucial than ever. The rising application of membrane bioreactors (MBRs), specialized pumping equipment, and fine bubble diffusers in plant infrastructure require protective equipment up front to maximize service life and operation. Complete vortex grit removal systems, designed to optimize downstream operations, comprise grit chambers, grit handling equipment, and grit washing/dewatering. But what if the grit removal system itself is not performing optimally?


Reducing Perchlorates: A Comparison Of Hypochlorite Options
By James P. Brennan, Arch Chemicals, Inc.
Switching from gas chlorine to sodium hypochlorite is no panacea. Now, adding to the burden is the proposed U.S. EPA regulation for perchlorate. Considering the factors that lead to excessive perchlorate formation, switching to calcium hypochlorite provides utilities another key advantage.


Centrifugal Compressors Supply Deep Sedimentation Tanks With High-Pressure Air
By Atlas Copco Airpower Compressor Technique
The sewage treatment plant in Putzhagen, Germany, requires large quantities of high-pressure compressed air for its exceptionally deep sedimentation tanks. Because the aging compressors needed to be completely overhauled at great cost, the search for a new energy-efficient solution began.


Measuring Irregular Flow Intervals Of Cooling Tower Blowdown Water
By McCrometer, Inc.
The accurate measurement of cooling tower blowdown water flowing at irregular intervals prior to reinjection into a caprock well became a stubborn problem for Covanta Energy Corp.

From The Editor

Readers' Choice -- Top 10 Podcasts
At ACE14, Water Online’s “Todd and Todd” radio host duo—Todd Schnick and Todd Youngblood— sat down with over 50 experts from across the water industry.  Here are the Top 10 Water Online Podcasts based on reader traffic. 

Industry News

Is Bacteria The Key To Desalination?
Beetle-Inspired Conservation Tech
Water And Agriculture Leaders Join Together To Reduce Nutrient Pollution
Race Is On To Fix Leaks In Small Ohio Village
Solar-Activated, ‘LilyPad' Stormwater Treatment Technology
Toxic Algae Prep A Priority In Michigan
'Brown Is The New Green' Motto Of New Conservation Campaign
New Report Explores Role Of Distributed Infrastructure In Achieving Future Resiliency
Energy Department To Issue Funding For Targeted Algal Biofuels And Bioproducts
CH2M HILL Wins Two DBIA National Merit Awards
View more headlines

Featured Downloads

Inclined Rotary Screen Brochure
The Versa inclined rotary screen is designed to fit into an influent channel at a wastewater treatment plant and convey screened solids out for dewatering and disposal.

Electromagnetic Flow Sensor Datasheet
The ENVIROMAG 2000 magmeter is the optimum solution for North American water and wastewater measurement applications. Its design and performance makes it the choice for flow measurement throughout the process.

Water/Soil Sample Processor Brochure
OI Analytical’s new 4100 Water/Soil Sample Processor automates the processing of samples in 40-mL VOA vials for purge-and-trap analysis of volatile organic compounds (VOCs). The 4100 efficiently processes up to 100 drinking water, wastewater, or soil samples by EPA methods.

Pipe Wall Integrity Testing Datasheet
With the aging water infrastructure, the quantity of old pipe in the ground is dictating how water utilities prioritize their rehabilitation and replacement programs.

Fiberglass Reinforced Plastic Tanks Brochure
Plas-Tanks Fiberglass Reinforced Plastic (FRP) tanks are engineered with seamless design and extra reinforcements, which assure bottom integrity.

VTScada Thin Clients Datasheet
VTScada provides an integrated suite of easy to configure tools to allow you to securely monitor and control your process from any anywhere, anytime.
Browse the download library

Guest Column

Decrease Membrane Treatment Capital And O&M Costs With Optimum Flux Rates
Decrease Membrane Treatment Capital And O&M Costs With Optimum Flux Rates
Membrane flux rates should be the key consideration in achieving optimal system design and operation.

Featured Products And Services

Biological Nutrient Removal
Biological Nutrient Removal

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Headworks International Inc.

Vaporization Delivery System
Vaporization Delivery System

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OMI Industries

Signet 2250 Hydrostatic Level Sensor
Signet 2250 Hydrostatic Level Sensor

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GF Piping Systems

pH10A Pen-Style pH Instrument
pH10A Pen-Style pH Instrument

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YSI, a Xylem brand

VTScada 11 HMI/SCADA Software
VTScada 11 HMI/SCADA Software

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Trihedral Engineering Limited

KLa Systems Slot Injector Aeration System
KLa Systems Slot Injector Aeration System

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KLa Systems

AMI Turbiwell
AMI Turbiwell

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Swan Analytical USA

Smartrack MF/UF Rack System
Smartrack MF/UF Rack System

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Degremont Technologies

Flygt A-C Series PEG Mount
Flygt A-C Series PEG Mount

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Flygt -- A Xylem Brand

Correlated, Acoustic Leak Detection System: Aclara STAR ZoneScan
Correlated, Acoustic Leak Detection System: Aclara STAR ZoneScan

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Aclara

Sensus Smart Water Network
Sensus Smart Water Network

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Sensus

Altivar 61 Variable Speed AC Drives
Altivar 61 Variable Speed AC Drives

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Schneider Electric

Electronic Controls
Electronic Controls

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Singer Valve Inc

Displacer Level Switches
Displacer Level Switches

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Magnetrol International

Leopold Clari-DAF PW System
Leopold Clari-DAF PW System

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Leopold -- A Xylem Brand

TETRA SNAP T Block Underdrain
TETRA SNAP T Block Underdrain

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Severn Trent Services