When I look back at 2016 one of the most significant and most satisfying trends I observed was the growing acceptance of ORP measurements, especially to monitor disinfection. To insure the killing of pathogens the measured ORP value provides an unambiguous indicator. The same cannot be said of measuring free chlorine, whose measurement must be combined with pH to determine disinfection efficacy.
The Siemens Channel Partner in Oregon, has a customer from an engineering firm who also volunteers for Engineers Without Borders (EWB). The Portland chapter of EWB took on a project in Les Anglais, Haiti, to restore their drinking water supply system that had been disrupted in the Fall of 2008.
Contact ultrasonic level switch technology was first applied to process control in the 1960s – and continues to provide accurate and reliable liquid level measurement in virtually every process industry today.
To increase capacity within the existing footprint of a wastewater treatment facility in Michigan, two existing tanks were converted to aeration tanks with pure-oxygen aeration provided by Praxair’s In-Situ Oxygenation (I-SOTM) System.
When considering the current state of the water and wastewater industry, water metering is an important part of the conversation.
Electromagnetic flowmeters, also known as mag meters, are popular and proven devices for flow measurement of electrically conductive process fluids and for volumetric filling machine applications. Of prime importance to a mag meter’s accuracy and long term performance is the condition of the metering section of the flow sensor. By Dipl.-Ing. F. Hofmann and Dipl.-Ing. B. Schumacher, KROHNE Messtechnik GmbH Co KG Duisburg, Germany
Due to their critical role in protecting the health of customers, drinking water treatment systems require a high degree of care and oversight.
Radar technology is often viewed as the “best” method of level measurement, but this isn’t necessarily true in the water industry.
Electrical conductivity is the most convenient method for testing RO water quality and membrane performance. Pure water is actually a poor electrical conductor. The amount of ionized substances (salts, acids, or bases) dissolved in water determines its conductivity. Normally, the vast majority of the dissolved minerals in tap, surface or ground water
The water municipality at a mid-size city in the Western region of the U.S. serving a population of about180,000 people needed to address a chlorine disinfection system problem at one of its water treatment plants.
Facility administrators will find the advanced ST100 Series Thermal Mass Air/Gas Flow Meter from Fluid Components International (FCI) helps them improve the accuracy of specialty gas point of use and sub-metering operations to achieve accurate billing in their labs for better cost tracking and control.
Though they all must support routing functionality, some devices do it better than others.
Routing consumes more energy, so the lifetime of the battery will be affected. Therefore, a device with a battery that is inexpensive, has a long lifetime, and is easy to change would be ideal. With all this considered, a WirelessHART temperature transmitter is a suitable option to operate as a repeater.
Some wastewater applications require chlorine residuals greater than can be effectively monitored using DPD due to the oxidation of the Wurster dye to a colorless Imine. Such applications include industrial wastewater processes that inherently have a high chlorine demand thereby requiring a more robust monitoring method.
The pressures of supplying a growing global population mean that the world’s water supplies need to be managed more closely than ever.
Polycyclic Aromatic Hydrocarbons (PAHs) are a large group of organic compounds found naturally in the environment. PAHs are monitored by the US Environmental Protection Agency due to their carcinogenic characteristics.
In 2012, Americans consumed well over 79 billion servings of tea, which is just over 3.60 billion gallons.
Hexanal is one of many well-documented aromatic components that contribute to flavor and aroma in common consumer food products containing omega-6 fatty acids. Hexanal content is also used to measure the oxidative status of foods rich in omega-6 fatty acids.
DNA sequencing can provide more information on water and wastewater than traditional methods. Is it time for treatment operations to adopt the method?
The U.S. EPA lends advice on how small systems can combat increasingly troublesome PFC contamination.
Advanced Metering Infrastructure (AMI) has been available for some time, but the majority of water utilities still don’t utilize it. There are varying obstacles that keep more from embracing the technology, from cost prohibitions to lack of expertise. Increasingly, ways around these obstacles are emerging.
In the oil and gas industry, operations are only as good as what they can measure. When it’s time to move product from one place to another, accurate custody transfer measurement is paramount. Without a precise account of what’s been delivered, operations cannot accurately charge for their services and this can have major financial implications.
300,000 square feet. That was the size of the tradeshow floor at WEFTEC, the world's largest annual water quality exhibition. I didn't see every technology showcased last month in New Orleans (over a thousand exhibitors were on hand), but here’s a “best of” list from the many that I came across — a snapshot of various technologies that stood out from the masses, exceptional for their level of innovation and potential for industry impact.