Duperon Corporation is the inventor of the FlexRake barscreen, which has enjoyed widespread use at wastewater treatment plants for many years, coveted for its ability to remove solids in a robust, reliable package. And while copycat barscreens have recently come along, Duperon's classic design and service experience are proving hard to match, according to company president Mark Turpin. In this Water Talk interview, Turpin describes product...  Continue Reading..

Toray Membrane USA introduced an aptly-named product at WEFTEC 2017, the NHP (New High Performance) module for membrane bioreactors (MBRs). Toray's Peter Waldron sat down with Water Online to discuss how the NHP, which features thin membrane flat sheets densely packed into easily interchangeable cassettes, differs from current industry offerings and how these features benefit MBR operation.  Continue Reading..

The importance and utility of sensors for delivering precious drinking water — and beer — is of topic in this conversation with MJ Peters of Sensorex. The company provides UVT-LED sensors for monitoring UV transmittance, offering quality control for advanced treatment applications such as potable water reuse. One such application was the AZ Pure Water Brew Challenge, where recycled water was used to make beer.  Continue Reading..

Mixing activated sludge to a velocity of 0.03 meters/second is important because it keeps bacteria in motion, avoids sedimentation and optimizes the biological wastewater treatment process.  Water Talk recently caught up with Michael Lebkuecher, Director of Product Management for Solids Handling Pumps and Rainer Kutzko, Senior Project Engineer, both with KSB to learn more about mixing considerations.  Continue Reading..

The operating ranges for chemical injection need to be large because of the variability of flow in many treatment operations. As Bill McDowell, Vice President of Operations with Blue White Industries explains in this Water Talk interview, “You might be down to as low as 5 or 10 milliliters a minute and then one hour later; you might need to pump 15 gallons a minute out of the same pump and through the same sensor.”  Continue Reading..

Municipal wastewater treatment has traditionally taken place as far away from the populace as possible. But as people flock to cities and encroach ever closer on these facilities, the practice of extending ever further out becomes impractical and expensive. And as water becomes scarcer, cities the world over are looking at recycling wastewater from their citizenry closer to home.  Continue Reading..

MilliporeSigma is well known by many, but perhaps not within the water industry. That is changing, thanks to the company's work on total nitrogen (TN) testing, having recently developed a new method. Learn how and why MilliporeSigma branched out from life sciences and specialty chemicals into water, and what it means going forward.  Continue Reading..

Machines get smarter and more capable, but so do the hackers, so how do we advance in automation and leverage its benefits without introducing new security threats? Kelvin J. Hurdle, North America Industry Manager for Rockwell Automation, addresses cybersecurity among other automation topics including workforce issues, understanding analytics, and addressing equipment downtime.  Continue Reading..