Costa Mesa Improves Water Quality with Ozone and Nano Filtration

The Mesa Consolidated Water District (Mesa Water) inaugurated the start of construction for its Colored Water Treatment Facility (CWTF) improvements project.

Mesa Water sits above a portion of Orange County’s groundwater basin that includes a supply of amber-colored water hundreds of feet below the clear-water reserves. In planning since the 1980s, the CWTF went on-line in 2000 to tap into this water source using ozone to remove the color. The Facility is being improved with the installation of nano filtration membrane technology, and will return to service by mid-2012.

When completed in mid-2012, the CWTF will provide 50% more high quality soft water than the previous technology while using less energy. It will also protect the clear reserves by keeping colored water from migrating into the clear water zone.

Mesa Consolidated Water District (Mesa Water) provides water service to more than 110,000 customers in an 18-square-mile area.

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Swedish Wastewater Plant Treats Filamentous Sludge with Ozone

At Öresundsverket wastewater treatment plant in Helsingborg,Sweden, they have problems with filamentous sludge during springtime, as do many other activated sludge plants. With ozonation of the return sludge flow Öresundsverket has drastically reduced the amount of filamentous sludge and significantly increased the quality of the water.

Ozone is a very strong oxidant, In the treatment of sludge containing filaments the ozone breaks up the filaments and improves the settling characteristics of the sludge, without any negative effect on the nitrification process. Before selecting ozonation a pilot study was carried out. Sludge Volume Index was reduced while the biological processes were not affected.

The complete ozone plant can be housed in a small container . At Öresundsverket the plant was complete with a dissolution system and a reaction tank. The container solution means that you do not need a new or existing building to install the plant. In addition, it can easily be placed close to the activated sludge process.

The ozone process has been used throughout Europe to treat filamentous sludge and for overall sludge reduction.

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Wisconsin Dairy Farm Improves Operations with Ozone

It is surprising to learn that a dairy farm requires a sizable laundry for its operation. It turns out that the udders on every cow need cleaning three times a day during milking and the Statz Brothers farm cleans each cow’s udder, 2,600 cows in all, with a fresh towel.

To clean all of those towels they employ an ozone wash system, the ozone molecule to disinfect and remove stains. It doesn’t require hot water, so there’s less natural gas needed to heat the water.

Ozone is gaining traction as a disinfectant in a variety of applications. It has been used as a disinfectant in Europe since the 1800s, but the industry is building more slowly in the United States. The technology doesn’t make sense for light washing loads or home washing. But businesses can see a payback of less than a year on their investment. It’s best suited for places that go through a lot of laundry, such as 150-room hotels, 100-bed nursing homes or buildings that have at least 1,000 pounds of laundry to wash every day.

Worldwide, the market for ozone disinfection technology is projected to increase to $444 million in 2012 from $322 million in 2007, according to a report last year by the Massachusetts market research firm BCC Research. Markets include swimming pool and spa water disinfection, agriculture, groundwater remediation, odor control and wastewater treatment plants.

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