Ozone News reported that the Japan Ozone Association held their 20th annual conference in Chiba, Japan in late June of this year. Forty two papers and 9 poster presentations were made. 160 people attended the meeting including engineers, researchers and managers from water treatment utilities and many other companies in the ozone industry as well […]
Tag: drinking water
Ashland MA Refurbishes Plant for Improved Performance of Ozone System
Ashland and Hopkinton, MA are towns of about 16,000 and 14,000 residents, respectively. They are situated midway between Boston and Worcester in eastern Massachusetts. The Howe Street facility uses clarification, carbon filtration, and ozonation to treat groundwater. Ashland experiences seasonal increases in manganese in its ground water supply. In Ashland’s water, the manganese is organically […]
Singapore Uses Ozone for Two Decades to Treat Drinking Water
According to Singapore’s National water agency PUB the water treatment process at its Bedok plant takes six steps, two of which involve an enhanced disinfecting technology called ozonation. When infused with water, ozone kills bacteria and micro-organisms like algae and plankton which float on the water surface initially. A coagulant called aluminium sulphate is then […]
Ozone Helps Waco Reduce Taste and Odor Problems
City and community leaders in Waco had a chance to tour the site of the new drinking water treatment facility. The plant began its water pretreatment process last summer, but officials said they only recently starting running the ozone disinfection process. Ozone is a well proven option for reducing taste and odor problems in drinking […]
North Carolina Water Plant Expands with Ozone
The expansion of the Sweeney Water Treatment Plant in Wilmington is nearing complete. Planning for the project began in 2005. The construction will take the plant from 25 million gallons of treated water per day to a potential 44 million gallons per day. The facility is implementing new filtration systems, including ozone and UV disinfection. […]
Massachusetts Regional Water Authority to Combine Ozone and UV for Disinfection
To meet new federal regulations aimed at reducing gastrointestinal illness from Giardia and Cryptosporidium microbes, the Marlborough plant will use ultraviolet light. The combination of treatments will allow for a reduction in the amount of ozone that is added to the water, which in turn will reduce our ozone operating expenses to offset increased operating […]
Ozone Measurement in Iron and Manganese Removal
Iron (Fe) and manganese (Mn) are often found in groundwater. High levels can create aesthetic issues with drinking water including taste and odor problems as well as staining of water fixtures. A common method of removing these contaminants is to oxidize them and then remove the precipitates via filtration. Ozone is one of the oxidants […]
Andover Successful Treating Drinking Water with Ozone
The Andover Water Division was named 2009 Utility of the Year by the New England Water Works Association, a Massachusetts based not for profit organization of water works professionals. The award recognized the Town of Andover and the Andover Water Division for making significant improvements to its drinking water system. The Andover Water Treatment Plant […]
Columbus, OH to Adopt Ozone for Drinking Water Treatment
The City of Columbus’ Hap Cremean drinking water treatment plant will be converted to the use of ozone and biologically active filtration (BAF) by 2013. The change is driven by the EPA Stage 2 Disinfection Byproducts rule that takes effect in 2012. The Hap Cremean plant has a capacity of 100 MGD. A variety of […]
Oregon Cities to Use Ozone for Drinking Water Treatment
The cities of Tigard and Lake Oswego, OR will use conventional drinking water treatment plus ozone to best meet their future water treatment needs. This is the first phase of planning for an expansion of the city’s water supply through a water partnership with Tigard. Initially 18 different water treatment technologies were examined for social, […]