Featured Articles
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Chlorine Measurement In Wastewater And Regulated Discharge Requirements
8/8/2014
Homes, industry, schools, and businesses all generate sanitary waste, or sewage. Sewage treatment is a multistage process that cleans up wastewater before discharge or reuse. In the final step of the treatment, disinfectants are added to kill disease-causing organisms. Common disinfectants are chlorine gas and sodium hypochlorite. Chlorine dosage levels are designed to leave almost no residual in the wastewater after treatment
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Case Study: Newport News Uses Emerson Ozone Instrumentation For Safe, Effective Disinfection
5/22/2006
Maintaining the quality of the water supply is the top priority for municipal drinking water treatment plants across the country. Water plants use several treatment processes to ensure water quality and safety, and these treatment steps include disinfection. Traditionally, chlorine is used in both primary and secondary disinfection treatments and has been used since 1908. Some water plants are moving to ozone for primary disinfection. One water utility that is taking this direction is Newport News Waterworks.
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Think You Know ORP? Get 5 pH/ORP Measurement Tips
6/29/2017
Water and wastewater treatment professionals are constantly looking for as much information as possible about the quality of their water. If knowledge is power, then understanding the properties of their water is key to running an effective and efficient facility.
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Avoiding The Deadly Legacy Of Hydrogen Sulfide
7/25/2018
Workplace fatalities are devastating to families, friends, and employers alike, and they are especially tragic when resulting from a preventable incident. Whether it be a lapse in safety judgement, a lack of proper monitoring equipment and protocol, or the pervasiveness of human error, employers must always be attentive to factors that could lead to severe worker injuries or death.
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Application Note: pH Control Protects Membranes In Reverse Osmosis
8/30/2005
Reverse osmosis is a technique for removing dissolved solids from filtered raw water. It is used in a variety of industries to condition water for plant use, or as a first step in the demineralization process
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Improved Process Control: Putting ‘Knowledge Is Power’ To Work
10/20/2017
You can’t control what you don’t know and when it comes to gas mixtures, control is of vital importance. But how can you get a handle on all of the elements you’re processing at a given time?
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Essential Answers To Important pH Questions – Part 1
6/16/2015
pH measurement plays an important role in virtually every industrial process and an equally essential part in environmental regulatory compliance. Many of the below questions pop up every day whether in chemical processing plants, power plants, water and wastewater plants or biopharmaceutical processing.
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Utah Water District Saves Time And Resources, Improves Accuracy By Upgrading Sensors And Analyzers
7/20/2015
Monitoring chlorine and fluoride levels in the drinking water of Utah’s Taylorsville-Bennion Improvement District used to be expensive, labor intensive, and often sensitive to interference from the variable frequency drives used to operate the chlorine injection pumps. That is, until the district upgraded to Rosemount free chlorine and fluoride sensors and analyzers from Emerson.
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pH & ORP Sensor Selection Guide
11/10/2011
The pH & ORP selection guide is designed to assist in selecting the sensor that fits most application needs. There are some instances where more than one sensor is the right choice.
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Improved Silo Contents Management Using 3D Solids Scanners
5/7/2015
Measurement of solids is a challenge for a number of reasons. The solids surface is uneven and shifts as the silo is filled or emptied.