In 2010, Shelby County Water Services (SCWS) was planning for the future. With new regulations on the horizon, SCWS determined that the Talladega/Shelby water treatment plant in Shelby County, AL, needed more effective removal of disinfection byproducts (DBPs). Specifically, the treatment plant needed help complying with the U.S. EPA’s new Stage 2 Disinfection Byproduct Rule (DBPR).
A municipal wastewater treatment plant investigated a sudden increase in fecal coliform exceedance events.
Communities around the world are facing a growing storm. Complex challenges including water scarcity, changing demographics, extreme weather patterns, and aging or overly stressed infrastructure are colliding to threaten critical water, energy, transport, enterprise and health networks. The water industry is in the eye of the storm.
Measuring the level of tanks used to hold fluids for custody transfer can be expensive. This is not due to the cost of the measurement instrumentation, but to what inaccurate measurements can cost the company. Picking the right instrumentation for applications is important. Which radar level technology should you choose for tank gauging in custody transfer applications? Frequency Modulated Continuous Waveform (FMCW) or pulsed Time-of-Flight (ToF or PToF).
In this white paper, learn how to decrease alarms due to redundant level devices not matching, especially in applications with high pressure and/or high temperature. The importance of Gas Phase Compensation (GPC) and how it affects level readings of guided wave radar (GWR) devices is critical. The presence of polar gas also can have an effect on the accuracy of any GWR that does not have GPC when installed in applications where high temperature or pressure is present. This paper will discuss these issues and address how to overcome them.
For a pH sensor to maintain an accurate reading, the sensor must remain clean. Specifically, the glass measuring electrode cannot become coated, and the reference electrode assembly must not become coated, plugged or otherwise contaminated by the process solution. Here’s how to clean pH sensors to ensure correct operation.
As a bulk emergency chlorine vapor scrubber system approached the end of its anticipated 20-year useful life, the city engaged Integrity Municipal Systems, LLC (IMS) inspected the equipment and proposed a system refurbishment plan that would ensure proper system performance and safe storage of the 30,000 gallons of corrosive caustic soda contained within it.
The Utility Distribution team at the University of Illinois at Urbana-Champaign manage the water system which serves the entire campus. The University purchases water from Illinois American Water which is distributed across the campus for uses as diverse as chemistry labs, agricultural research, and competitive swimming complexes.
For decades, a Winnipeg utility used a multiple point-chlorination process to treat raw water drawn from remote Shoal Lake. Concerns eventually arose about the potential presence of chlorine-resistant pathogens–Crytosporidium and Giardia–and residual disinfection byproducts, which coincided with encroaching development near the lake. The Clari-DAF system was selected and now removes 70 percent of the organics at the Winnipeg plant, which also improves filtration and extends the intervals between filter backwashes.
The Jimo, China, municipal wastewater plant was originally designed to treat a combination of municipal and textile wastewater (120,000 m3/d) with Class IB effluent limits for BOD, COD, ESS, TN, NH3-N and TP.
A landfill operator’s leachate treatment plant in Missouri required pH reduction following lime-softening and prior to the biological wastewater treatment process. Carbon dioxide (CO2) was chosen as a substitute for sulfuric acid due to improved process control and a reduced tendency to form scale.
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.
The TU5 Series employs a patented optical design that sees more of your sample than any other turbidimeter, delivering the best low level precision and sensitivity while minimizing variability from test to test.
The Aztec 600 Low Range Manganese Analyzer AW634 offers reliable and accurate on-line analysis of manganese up to 0.10 ppm Mn.
The new Hach SL1000 Portable Parallel Analyzer (PPA) performs the same tests with less than half the manual steps. Get highly accurate results, with less opportunity for errors, in a fraction of the time. Up to six parameters, tested simultaneously.
Static headspace is one of the most popular techniques due to its versatility for analyzing volatile organic compounds (VOCs) in a complex variety of matrices. This is due to the elimination of tedious sample preparation steps and prevents contamination problems that are common to other sample introduction techniques. Teledyne Tekmar draws on our experience as a leader in low-level VOC analysis with the introduction of this companion autosampler to the Headspace product line.
Waltron’s 3041 Silica Analyzer is the first choice for online analysis of dissolved silica in ultrapure water applications.
Rugged and reliable, the YSI Pro1030 provides everything you need in a handheld instrument for the measurement of either pH or ORP along with temperature, conductivity, specific conductance, salinity and total dissolved solids (TDS).
As regulations become more stringent and increased demand is putting pressure on sources, traditional sampling to maintain water quality just isn’t cutting it anymore. Relying on periodic samples analyzed in a laboratory means water managers aren’t in touch with potentially large swings in the organic load and other problems flowing into their treatment plants. In this Water Talk interview, Kerim Kollu, an applications research scientist for Real Tech, discussed the emerging technology that is enabling municipalities to reliably perform continuous monitoring.
Excessive amounts of diverse microorganisms, also known as biofilm, significantly impact water quality and promote corrosion in distribution systems. The fastest way for biofilm to proliferate is through ineffective management. However, taking control isn’t as simple as adding plenty of disinfectant to the water, and traditional testing involves sending samples to a lab and waiting days. In this Water Talk interview, Dave Tracey, director of strategic sales channels for LuminUltra, discusses innovative biological monitoring technologies that simplify testing so it can be done in the field with immediate results.
The future of water looks daunting with the ever-looming challenges of population growth, climate change, and failing infrastructure, but the future also includes technological advances that can help overcome these hard-to-solve issues. The key, explains Water Talk guest and digital technology consultant Gigi Karmous-Edwards, is to embrace our digital capabilities as they continue to develop. We are already in the age of smart water, but the majority of utilities are not taking advantage of the power of data for optimizing operations and informing decision-making. It is only when wide-scale implementation occurs that the digital transformation arrives. In the interview below, Karmous-Edwards explains the impact on the horizon.
Cloud-based monitoring and reporting was all the rage at WEFTEC 2017. Water Talk sat down with Tom Perry, National Product Manager with Veolia to discuss Aquavista, one of the more established technologies for capturing critical data, storing it in the cloud and allowing it to be accessed real time, 24/7 from any smart, web-enabled device.
Jack Roushey, product manager for instrumentation at Siemens, gives his take on trends in the water industry, including the three most important factors for ensuring a quality end product — safety, performance, and reliability within your process measurement and control regime. Talking to Water Online's Kevin Westerling, Roushey illuminates the impact of these important parameters with a discussion on lead in drinking water, which has recently caused contamination events, regulatory scrutiny, and a mandate for improved process control.
From the experts in chlorine management comes a multi-parameter water analysis system offering both chlorine measurement and control in one versatile instrument. Tailor the modular MicroChem®3 to your individual application with up to three measurement parameters. Watch the video to learn more.
A key component of the water supply plan for the City of Wichita, Kansas, was recharging the large aquifer that lies under the region with water from the Little Arkansas River. The river basin contains substantial farming operations which, during rain events, spike the river water with the commonly used herbicide Atrazine. Atrazine concentrations in the river frequently rose forcing the city to shutdown the bank filtration system. Advanced oxidation process (AOP) was selected to remove the herbicide. The AOP reactor’s design limited the amount of hydraulic backpressure it could tolerate. Consequently, Mazzei was challenged by the project’s design team to remove the entrained gas bubbles that remained from the prior oxidation treatment at a “not to exceed” hydrostatic backpressure of 19 feet.
Reliant Water Technologies is a global marketing company that supplies high quality, one-of-a-kind products to the water and wastewater treatment industries.
For more than 60 years, Hach has been at the crest of the industry - finding solutions that help you best manage your water. Our analytical instruments and reagents are used to test the quality of water in a variety of industries and markets - from around the corner, to around the globe.
Rosemount Analytical, one of Emerson’s leading process management companies, is the world’s premier supplier of technologies for liquid and combustion analysis, process analysis, gas measurement, and emissions monitoring. With an 80-year legacy of manufacturing liquid and gas analytical products that have revolutionized the process industries, we continue to provide real, quantifiable analytical solutions.
The Myron L Company, originally founded in 1957 as a Research and Development company, is a privately owned and operated California Corporation
OI Analytical designs, manufactures, and supports analytical instrumentation used for sample preparation, detection, and measurement of chemical compounds and elements. Our products are supported by an ever-increasing network of sales, service, and applications personnel. The Company's products are sold worldwide by direct sales personnel, independent representatives, and distributors
Real Tech is bringing intelligence to water with a comprehensive line of water quality monitoring instruments and custom software analytics. We detect and predict a wide array of water quality parameters and compounds in real-time including UVT, UV254, TOC, DOC, COD, BOD, TSS, turbidity, nitrate, nitrite, algae, permanganate, chromium, colour, dyes, BTEX, oil in water, surfactants, black liquor, pH/ORP, DO, conductivity and so much more.
Swan Analytical Instruments is a leading manufacturer of high quality on-line analytical instruments for water analysis in applications such as high purity water, steam, condensate, cooling water, potable water, and effluent.
Thermo Fisher Scientific offers a full range of water analysis instruments from pH, ISE, conductivity and dissolved oxygen meters, electrodes and solutions, to colorimetry, titration and on-line process monitors.
YSI offers a full line of environmental monitoring and sampling instruments, systems, and services for water quality and water velocity data. Our multiparameter instruments, aquaculture monitoring systems, handheld sampling instruments, and complete line of SonTek products can be incorporated into any of your monitoring or sampling applications.
