Application Note: Continuous Monitoring Of Drinking Water Provides Assurance Of Safety
A water utility in Ohio wanted to learn more about the variability of water quality parameters such as pH, ORP, turbidity, and chlorine. Previously, most of these parameters had been measured by spot sampling protocols with only a few
measurements during a daily period. In order to more accurately assess the water variability, the utility used a YSI 6920DW Drinking Water Multiprobe
Phosphate Corrosion Control In Drinking Water
Corrosion occurs because metals tend to oxidize when they come in contact with oxygenated water, resulting in the formation of stable metal oxides.
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.
Application Note: Ozone Measurement In Potable Water
Ozone is a powerful oxidizing agent that can be used to destroy the organic compounds that affect the taste and odor of potable water. Environmental concerns have led to increased use of ozone because, unlike chlorine, it does not form hazardous by-products.
Chemical Cost Comparison Of A Conventional Deaerator vs. A 3M™ Liqui-Cel™ Membrane Contactor System
Mixed bed ion exchange is often used to polish reverse osmosis (RO) permeate in many industrial water systems. This process has been utilized for several years and it is well known that the management of the dissolved carbon dioxide (CO2) in the water is critical for an efficient operation. By Membrana
Precise Control Of Dissolved O2 And N2 In Semiconductor Applications Using 3M Liqui-Cel Membrane Contactors
Semiconductor manufacturers increasingly want precise control of O2 and N2 concentrations in ultrapure water. Specifically, the polishing loop of a semiconductor plant needs to control dissolved O2 to low levels of 1 ppb or 5 ppb while simultaneously controlling the dissolved N2 between 8–12 ppm.
Application Note: Vertical Profiling Safeguards Drinking Water And Sheds Light On Cyanobacteria
A search for algal toxins in North Carolina reservoirs has evolved into an ongoing early warning system for three important drinking water reservoirs—which serve two large cities—and yielded a greater understanding of the dynamics of blue-green algae, or cyanobacteria, in the state’s reservoir system. By YSI
Innovative Solutions To Drinking Water Decontamination In Small And Medium Treatment Plants
Air stripping technology effectively removes VOCs, THMs, and CO2 for improved adherence to water quality regulations.
The Basics: Keeping Our Water Clean Requires Monitoring
Keeping the water in our lakes, rivers, and streams clean requires monitoring of water quality at many points as it gradually makes its way from its source to our oceans. Over the years ever increasing environmental concerns and regulations have heightened the need for increased diligence and tighter restrictions on wastewater quality.
Application Note: Using Real-Time Telemetry For Ecological Monitoring Of Coastal Wetlands
The Grand Bay National Estuarine Research Reserve (NERR)in Mississippi is one of 27 protected estuarine reserves across the United States. By YSI