Ozone and Activated Carbon Protect Water Supply from Oil Spill

An Edmund, OK official said he is not concerned that an oil spill on the Deep Fork River will adversely affect Edmond water supplied by Arcadia Lake. On Monday, the Oklahoma Corporation Commission received a report from the Department of Environmental Quality that oil had leaked into the Deep Fork River.

Deep Fork River enter Arcadia Lake. the lake has a normal surface area of 1,820 acres, and is surrounded by 26 miles of shoreline, according to the City of Edmond. The lake supplies water to Edmond and serves as a flood control for the Deep Fork River Basin.

Edmond’s surface water plant uses both ozone and granular activated carbon treatment processes, and these would destroy or capture any oil that might enter the plant. The plant intake is well below the water surface, and as oil floats this lessons the chance of any oil entering the plant.

Advanced water treatment technologies like ozone help protect water supplies upsets and special situations such as this oil spill.


Oregon Water Plant Uses Ozone to Improve Water Quality

In 1927 a pipeline was laid and put into commission that ran from Big Butte Springs to Medford, Oregon. Prior to the pipeline being built, water was delivered to Medford via a wooden flume. Times have changed. In the last few years changes have been made at the plant to make the water taste better. One of the main changes is the ozone room at the treatment plant. Ozone is a powerful oxidant widely used in water treatment to oxidize minerals, organic compounds, reduce taste and odors, eliminate color, and disinfect bacteria, virus, and protozoan cysts. The inherent features of ozone are its high oxidation potential and disinfection capabilities. The water is treated with only the slightest bit of chlorine so it remains as pure as can be. The result being often the only way one would know where their water was coming from is by the temperature. The river water is warmer than the spring water.


New Semiconductor Plant to Use Ozone as Part of Ultrapure Water System

The massive new semiconductor manufacturing plant in upstate New York that’s being built by GlobalFoundries is expected to be the largest and most advanced computer chip factory in the world when it’s completed in late 2012. Water systems are essential since a chip comes into contact with ultrapure water more than 35 times during the production process. Any disruption of service or “out-of-spec” water can compromise the chips and even result in loss of product.

One semiconductor chip manufacturing plant uses anywhere between 2 to 4 million gallons of ultrapure water per day, about the same amount of water used by a city of maybe 40,000 to 50,000 people.

For the GlobalFoundries plant the series of water treatment technologies includes pumps, storage tanks, ultraviolet sterilizers, ozone generators, ion exchange, an ultra filtration system and a gas transfer membrane system. Ozone helps remove dissolved organic materials from water.


UK Water Facility Will Use Both Ozone and UV to Treat Drinking Water

A NEW £3.4-MILLION system will boost the quality of drinking water for half of the population of North Lincolnshire in the UK. Anglian Water is seeking planning approval to extend the company’s 18-year-old treatment plant at Barrow-Upon-Humber. If given the green light, work is expected to start next month with the completion set for May next year. There will a new building to house some ultra-violet treatment and filtration equipment.

Anglian already supplies 320 MGD of water daily. In some parts of the region, however, water is extracted from rivers such as the Wensum and the Trent. The remainder of the water is supplied from underground stores called aquifers. All of the supply is then taken to one of 136 water treatment works in the region, where it is cleaned and purified to make it safe to drink.

Water from different sources requires different levels of treatment. Ozone is used to breaks down and destroys any pesticides, herbicides and bacteria in the water.


New Scoring System for Green Buildings Should Favor Ozone and UV Use

In April, USGB announced it had updated the LEED ratings system for new construction and major renovation. This is exciting for ozone since it is a natural complement to UV and filtration for treating rain and grey water for reuse.

Some of elements of the new scoring system include:

1. Total water efficiency points have increased to 10.
2. The Water Efficiency category has been expanded to include water use reduction, efficient landscape irrigation, and innovative wastewater technologies.
3. The points available for indoor water efficiency have increased from three points to 12.
4. The Indoor Water Efficiency credit now includes a prerequisite mandating that all LEED projects hit a 20% water savings mark (as compared to a standard baseline).
5. Water use reductions are now calculated based on the implementation of “ strategies that in aggregate use 20% less water than the water use baseline calculated for the building (not including irrigation).”
6. Irrigation use reductions “must be attributed to any combination of the following items: plant species, density and micro climate factor, irrigation efficiency, use of captured rainwater, use of recycled wastewater, use of water treated and conveyed by a public agency specifically for non potable uses.

Giving more value to reusing water ina building encourages the use of advanced water treatment technologies such as ozone.


Dallas Water Utilities One of the Largest Users of Ozone in the World

Dallas Water Utilities (DWU) has three purification plants, built between 1930 and 1964: Bachman, Elm Fork and the East Side plant, which is currently under expansion. Collectively, they can treat more than one billion gallons of water per day for the Dallas area. Ozone technology is used as a primary disinfectant in the water treatment process and the East Side Plant is currently the largest ozone facility for treating water in North America, with a total of nine, 4,000 pound-per-day ozone generators.

Additionally, DWU owns and operates two wastewater treatment plants – Central and Southside – which have a combined treatment capacity of 300 million gallons per day. While there is currently sufficient water to support the Dallas area, this finite resource will not be able to sustain future growth without conservation, reuse and additional supply.

Dallas is expected to more than double, from 2.3 million to over five million, by 2060. So the use of ozone for water disinfection is bound to continue to grow with time.