Article: Expanded Use Of Split Seal Technology For Large Pumps And Agitators New advances in split mechanical seals have expanded its application for use in both water and wastewater systems. These systems move vast amounts of fluid through pipes and tanks. Water-based fluid systems comprise the largest fluid transport systems in the world with wastewater streams being the largest. While the systems’ designs can vary by region, most use centrifugal pumps to move fluid. Many of the centrifugal pumps are very large and difficult to assemble, so they have not typically been sealed by mechanical seals which require total equipment disassembly. However, split mechanical seals have advanced so that these pumps can now be sealed without equipment disassembly.

Duperon Operates Flawlessly During Hurricanes In Louisiana

When Hurricanes Katrina and Rita struck the Gulf Coast in 2005, the impact was immediate and devastating.

Driving Efficiency: Why Use Variable Frequency Drives On Slot Injector And Jet Mixing Pumps?

Aeration pumps with variable frequency drives (VFDs) offer the ability to fine tune energy usage and eliminate excess power consumption, which can improve operational efficiency in wastewater treatment.

TasWater And ADS Collaborate To Reduce Spills In Launceston, Tasmania

Read about a predictive tool that improved understanding and operational intelligence of a complex combined sewage network.

Disk Thickener Technology Replaces Gravity Thickener, Improves Performance Of Digester

After two years operation the plant reports that RoS2S Disk Thickener is consistently producing a 5.5% DS average with an ~0.6% DS average feed at a steady flow of 107 gpm (60 gpm activated, 7 gpm trickling, 40 gpm service water) running 24 hours a day.

Michigan Utility's New Pumps Underscore Advancements In Wastewater Handling

Ypsilanti’s pumps, originally put into service in 1982, became priority candidates for replacement after operating ten years beyond their expected 20 year service life. The Ypsilanti Community Utilities Authority (YCUA), included the project in the utility’s Master Plan.

Get It Out: Effective Removal Of Inorganics

Modern wastewater treatment processes are not designed to operate with inorganic solids in the waste stream. While grinders are typically a cost-effective method for protecting the pumps at pump stations, there are other critical junctures within a treatment plant where operators have an opportunity to protect valuable assets with screening technology.

All You Need To Know About qPCR

As quantitative Polymerase Chain Reaction (qPCR) becomes more accepted and available to a range of industries looking to quantify their (specific) microbial populations, the ability to provide quick and easy-to-interpret results will be key. The initial development of qPCR assays has been focused on potential human pathogens for use by the medical sector. Now, many manufacturers including LuminUltra, offer assays for use in non-medical, industrial markets to test for known harmful organisms in water systems.  If left undetected, those same organisms can create costly problems, including product degradation, infrastructure corrosion, and process inhibition.

Xylem Designs Permanent Backup Pump Solution To Prevent Another Overflow In Jonesborough

In spring 2016, a significant rain event sent the Jonesborough Wastewater Department in Tennessee back to the drawing board.

Put A 'Stop' To Water-Main-Repair Shutdowns And Boil-Water Notices

For most water or wastewater system operators, engineers, and repair crews, the only thing worse than facing a 24”-main emergency repair is facing an even larger one. To those who have never performed an emergency line stop and bypass, the idea of completing repairs with no service outage, no long-term shutdown, and no ‘boil water’ notice is almost beyond belief. To those who have, it’s a sigh of relief.

What Is Genclean Advanced Oxidation Disinfection Solution And What Is It Used For?

A non-toxic, advanced oxidation (AOP) formula of minerals chelated with oxygen and stabilized in an aqueous water solution. It is a viable option in industries and applications requiring a solution to challenging situations where high level effective sanitization and oxidation is required. Read more to learn how the Genclean advanced oxidation treatment solutions can be used in different applications.

Ion Exchange Resins Reduce Pollution From Refineries

A single operational oil and gas refinery produces millions of gallons of contaminated wastewater a year, leading to environmental pollution concerns. Ion exchange resins are a metal- and ion-removal solution to help clean this wastewater for plant reuse or safe disposal. This application guide explains how resins can be used to demineralize refinery water in process, boiler, and cooling water applications.

Analysis Of Pesticide Residue In Spinach Using The AutoMate-Q40 An Automated QuEChERS Solution

QuEChERS is a Quick-Easy-Cheap-Effective-Rugged-Safe extraction method that has been developed for the determination of pesticide residues in agricultural commodities.

Flexible Expansion Joints Provide Protection For Pipelines Subject To Subtle Or Sudden Movement

Flex-Tend flexible expansion joints have a proven record of providing protection for pipelines subject to subtle or sudden movement. As with all products used in the water and wastewater industry, protection is optimized with the selection of the proper assembly incorporated into a sound design. This paper is intended to provide assistance in both of these areas.

Application Note: Preliminary Performance Study On An On-Line TOC Analyzer In Pharmaceutical Applications Total Organic Carbon (TOC) analysis is an effective technique for detecting and measuring the presence of organic contaminants in waters used throughout industrial processes, municipal water uses, and for determining residual concentrations of organic material on the surfaces of equipment used in the manufacture of active pharmaceutical ingredients. By Jeffrey Lane, Steve Skalski, and Gary Engelhart, OI Analytical

Automatic Scraper Strainers Protect Critical Membrane Systems

Automated scraper strainers pre-filter water and wastewater to protect fragile membrane systems from damage caused by large, suspended particles, reducing maintenance and replacement costs.

Dissolved Oxygen Measurement

One of the most important measurements in the determination of the health of a body of water is its dissolved oxygen content. The quantity of dissolved oxygen in water is normally expressed in parts per million (ppm) by weight and is due to the solubility of oxygen from the atmosphere around us.

Aerated Biological Nitrogen Removal

Excess ammonia in receiving waters causes algal blooms that decrease oxygen levels. For this reason, many wastewater treatment plants (WWTPs) must limit ammonia in discharge. Mike Rousey, Hach Company

Determination Of Polar Pesticide Residues In Food Of Plant Origin, By And Automate QuPPe Solution

The QuEChERS (Quick-Easy-Cheap-Effective-Rugged-Safe) sample extraction method was developed for the determination of pesticide residues in agricultural commodities.

Determining Biochemical Oxygen Demand (BOD) With Lovibond® OxiDirect

The Biochemical Oxygen Demand over a testing period of n days (BODn) is precisely defined and associated with experimental standards. It represents the quantity of oxygen aspirated in the course of aerobic breakdown of organic substances by microorganisms.