Drinking Water Disinfection Resources
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On-Site Hypochlorite System Delivers Historic Efficiency Levels
9/29/2018
In one of Pennsylvania’s three original counties, water has played an integral – even historic – role in the region’s development.
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Upgrading From Gas Chlorine To On-Site Hypochlorite Generation To Improve Safety And System Resilience
9/20/2018
By replacing gas chlorine with on-site hypochlorite generation, Nashville was able to improve the safety and longevity of its water plants to accommodate the growth of the “Heart of Country Music” far into the future. At a recent water conference, Glen Doss, Treatment Plant Manager stated, “In 2016, the last gas chlorine railcar left to large applause.”
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Top Research Institute Turns To On-Site Generation For Drinking Water System
9/18/2018
As one of the top 20 American research institutes in the United States, Texas A&M has hundreds of laboratory facilities on its campus where a variety of proven water treatment technologies are used to control the quality of the water used in research.
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Product Recovery Through Ozone Oxidation Of Waste Liquor
9/15/2018
The manufacturing of soda ash from Trona is a multi-step process that results in the production of a waste liquor that contains significant levels of organic contamination.
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Wastewater Plant In Como, Italy, Upgrades To De Nora Ozone For Significant Savings
9/13/2018
The Lariana Depur wastewater treatment plant in Fino Mornasco, Italy, treats wastewater from multiple textile manufacturers in the Como region, known as the heart of the textile industry. Since 1994, ozone has been used effectively as a polisher to remove the dark blue-purple color — the result of the dyes used in the textile dyeing and printing process — from the water.
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Groundwater Treatment Pilot Test Program Proves Successful In California (Loprest)
9/12/2018
Iron, manganese, arsenic and hydrogen sulfide are indigenous to numerous groundwater aquifers. With the exception of arsenic, these constituents are more prevalent in deeper aquifers that are devoid of dissolved oxygen. This report summarizes the results and conclusions of a groundwater treatment pilot test program. This pilot test program was undertaken to determine the removal performance for arsenic, manganese and iron at the City of Merced’s Well 20 site. Chemical treatment processes required were also studied.
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EPA Researchers Partner With WaterStep To Deliver Clean Water During Emergencies
9/11/2018
Following a disaster like the back-to-back hurricanes that hit Texas, Florida, and Puerto Rico in 2017, water systems can become flooded and unable to provide safe drinking water to communities. EPA researchers recognized the need for portable water treatment systems that can quickly and cost-effectively provide safe drinking water to affected communities following a disaster.
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Expansion And Upgrade Of WWTP Ozone Disinfection System Reduces Energy Cost By 69%
9/10/2018
The financial cost to maintain their ozone equipment, and increasing scarcity of replacement parts for their ozone generator, motivated a utility in Springfield, MO, to upgrade their ozone system. Read the full case study to learn how the plant assessed the energy cost of a sidestream ozone injection system compared to that of a turbine mixing design and showed that the Mazzei retrofit design reduced the energy cost of ozone contacting by an average of 69.2% under all plant flow conditions.
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Mitigating Environmental Impact Of Gold Mine’s Wastewater Through Ozone Oxidation And Aquifer Re-injection
9/5/2018
Installing and operating an ozone oxidation system for wastewater remediation at a gold mine located in a remote region of Alaska is full of challenges.
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Largest Ozone Facility In North America Meets Regulatory Requirements And Remediates Taste & Odor Problems
9/5/2018
The North Texas Metropolitan Water District began working to add ozone to its four interconnected water treatment facilities which operate as the Wylie Water Treatment Plant (WTP).