Ozone provides better tasting water

Better-tasting water on tap for south county, central customers

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Improved taste and less odor result from new water treatment plant

By KEVIN BRADY

Toss out that expensive bottled water, a new water treatment plant is making the water coming out your tap better than ever.

water treatment plant uses ozone

A $34.7 million dollar hydrogen sulfide removal facility beside Newsome High School on Fishawk Blvd. in Lithia went online this month improving the water quality for 535,000 homes in Hillsborough County.

Water customers in south-central Hillsborough communities such as Apollo Beach, Brandon, Riverview, Ruskin and Sun City Center began receiving water treated with ozone in early July. Ozone is a safe, affordable and efficient method used to disinfect water and improve taste and odor in treatment plants.

In addition to noticing improved odor and taste, residents may also notice that the tap water occasionally appears cloudy white due to tiny oxygen bubbles. This may be more apparent until the new process is further refined.

The water is safe to drink.

The bubbles are created by the new ozone process that is removing hydrogen sulfide and its characteristic rotten egg smell from groundwater supplied to the Lithia plant. The oxygen bubbles should dissipate after the water sits for a few minutes.

“The rotten egg smell is all removed now,” said Brandon Moore, Tampa Bay Water’s public communications manager.

Students at Newsome High School will be particularly pleased with the changes.

Football players at the school complained about the smell coming from Tampa Bay Water’s plant during a public hearing at the school in 2010.

“They were really happy to hear there would no longer be a smell coming from the plant,” Moore said. Residents also welcomed the changes. “We had a lot of positive feedback about the new plant.”

“It’s a higher quality of water residents are now receiving.”

Tampa Bay Water meets more than 100 federal, state and local standards for quality. “We actually go above and beyond the standard. I don’t know the standards for bottled water but I know our standards are above what is required. And you pay about ¼ of a penny per gallon for our water.”

Hillsborough County Public Utilities made several modifications at the plant in order to integrate the new ozone treatment process into daily operations.

These included reconfiguring chemical feed systems and related piping, upgrading chemical analyzers and controls, and constructing a new segment for the pipeline which brings water into the plant from Tampa Bay Water’s regional system.

Hillsborough County is a member of Tampa Bay Water. Hillsborough County Public Utilities Department provides an average of 50 million gallons of drinking water a day to 535,000 people in unincorporated Hillsborough County, and treats about 36 million gallons of wastewater a day.

Construction of the new plant took two years and was funded through construction bonds and Tampa Bay Water’s wholesale water rate.

With the start-up and testing of the new facility and plant improvements, Hillsborough County’s 20-year-old hydrogen sulfide removal process is being retired.

Tampa Bay Water is Florida’s largest wholesale water provider. The agency provides wholesale drinking water to its member governments of Hillsborough, Pasco and Pinellas counties and the cities of New Port Richey, St. Petersburg and Tampa.

For more information about the project, go to www.tampabaywater.org.

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Ozone Disinfects hospital rooms

Emerging Hospital Room Disinfection System Should Save Billions

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Medizone International, Inc. . In what is believed to be an important first, an entire ward at a public hospital remains 100% free from MRSA for 6 months after a major outbreak is quashed – thanks to the introduction of a new hospital room disinfection technology.

ozone removes pathogens in hospitals
ozone removes bacteria from hospital rooms

In early June 2013, seven patient rooms on a 14 room ward at Quinte Health Care’s Belleville General Hospital in Ontario, Canada were quarantined after being hit by a rapidly spreading strain of Methicillin-Resistant Staphylococcus aureus (MRSA). MRSA is one of the most common causes of serious staph infections acquired in hospitals, globally.

Dr. Dick Zoutman, Chief of Staff for the hospital, was quoted as saying, “On average we have had one or two new MRSA cases per month on the ward. This is in keeping with averages being reported within the health care system nationally. In June we noted a rapidly spreading MRSA problem on the ward that reached seven rooms over a short period of time. That is when we began using Medizone International’s AsepticSure® room disinfection system. It is the only system we know of that can actually eliminate 100% of infective pathogens with a single room treatment. We have learned that obtaining even a 99.9% bacterial kill is not enough, as the remaining 0.1% of bacteria immediately begin growing back causing the problem of infection to start all over again in a few short hours. What is more, AsepticSure is proven to kill bacterial spores that can lurk in hospital rooms for months.” Dr. Zoutman is also a co-inventor along with Dr. Michael E. Shannon of the AsepticSure system.

“The results were immediate. The MRSA was immediately and entirely eliminated from the ward. The AsepticSure system was straightforward to use and quick, with complete room disinfection occurring in an hour. To prove to ourselves that the AsepticSure system was working, we performed cultures of 120 surfaces of the treated rooms before and after the AsepticSure system was used. The results were amazing. Virtual complete elimination of all bacteria on the room surfaces after AsepticSure was used in the rooms.”

“However, the longer term effects were not fully appreciated until after a six-month follow up had been completed. Only then was it realized that not only had the rooms remained free of MRSA, no further cases of MRSA were noted on the ward during this period.”

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Ozone to remove pharmecueticals from wastewater

Primozone to build a mobile pilot ozone system for removal of pharmaceutical residue from wastewater

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Published on January 14, 2014 at 6:07 AM

The Swedish ozone generator supplier, Primozone, has been awarded funding of a project for removal of pharmaceutical residue from waste water. The project has been funded by Tillväxtverket – the Swedish agency for economical and regional growth.
Primozone has received funding to build a mobile pilot scale ozone system for removal of pharmaceutical residue. The aim is to be able to prove the concept on existing waste water treatment plants and to test and confirm the system design on different water flows and environmental conditions.

“We are happy to have received funding for this project”, says Arash Golshenas, Head of R&D at Primozone. “Being able to prove concepts on site is important. This means that we can recommend our clients the best possible solution based on a pilot installed at their own site. With a correctly designed system we can see that ozone will remove almost all of the residual”.

Pharmaceutical residue in wastewater is a known problem

The prevalence of pharmaceutical residue in waste water has been known for more than a decade and many different studies have been conducted to find out its influence on the environment. So far not much has been done to remove this residue but political action is starting to give results.

Many countries in Europe are now taking political action to reduce the effects of the pharmaceutical residue. One of the first countries to implement this is Switzerland where a political decision will force about 100 sewage plants to be equipped with systems to remove pharmaceutical residue.

Existing wastewater treatment plants are not equipped to remove pharmaceutical residue. But although the technique is available it seems that political action is needed to get the process started.
Sweden is at the forefront when it comes to research into how to reduce the amount of pharmaceutical residue in wastewater; several waste water treatment plants has identified the problem and many Swedish universities are conducting studies of the residues effect on the environment.

“We see this funding as recognition of our technology and knowledge in the area”, says Anders Schening, CEO at Primozone. “It is also a chance for Primozone to grow – the potential market for removing pharmaceutical residue is huge and when the legal requirements are in place we will have an efficient solution ready. Our aim is to have a world leading position in this market”.

Ozone is an economically viable solution

Pharmaceutical residue is hard to break down; they are constructed to be stable by nature. Consequently, there are only two technologies that seem to work for removal of pharmaceutical residue, where ozone is one of the technologies. Ozone works well because it is a selective oxidant that primarily attacks electron rich structures in molecules, such as double bonds.

Ozone is also the most sustainable technology both in terms of economy and environmental friendliness.

“According to our calculations removal of pharmaceutical residue with ozone can be done at a surprisingly low cost per m3 water treated”, says Anders Schening, CEO at Primozone. “Unlike other technologies ozone treatment leaves no residue or byproducts that need further treatment – ozone is produced by oxygen and will revert to oxygen again after it has reacted”.

Primozone is the leading supplier of patented innovative ozone generators that generate far more ozone and use far less energy than the alternatives on the market. The products are highly efficient, energy efficient, reliable, easy to install and maintain, light and with a small footprint, quiet, and with a built-in flexible monitoring and control system, giving the customers more efficient and reliable water treatment, reduced operating costs and the lowest life cycle cost on the market by far.

The company’s product range consists of a series of ozone generator models, varying in size and capacity from 100 to 25000 g ozone per hour. Primozone offers complete systems for ozone treatment of water with ozone generators as well as ozone application know-how, system design, oxygen generators, compressors, mixing and tank systems, and control and monitoring systems.

Primozone’s customers are industries with wastewater treatment needs, municipal wastewater and drinking water treatment facilities as well as fish farms (aquaculture) using recirculating aquaculture systems (RAS). Primozone was founded in 2000 and has its head office, research and development, and in-house production in southern Sweden.

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Safe use of ozone disinfection

Case Study: Newport News Uses Emerson Ozone Instrumentation For Safe, Effective Disinfection

Source: Emerson Process Management, Rosemount Analytical

emerson-drinking-water-disinfection

By John Volbeda, Wastewater Industry Manager, Emerson Process Management, Rosemount Analytical and Randy Hawkins, pilot plant engineer, Newport News Waterworks

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, located in southeast Virginia.

Newport News Waterworks constructed a pilot plant eight years ago that uses ozone in the primary disinfection process. For this pilot plant, Newport News selected Rosemount Analytical ozone measurement systems from Emerson Process Management. These analyzers are used for continuous measurement of ozone in the ozone contact basin. Based on the success of the pilot plant, the Harwoods Mill plant at Newport News switched from chlorine to ozone for its primary disinfection process in March 2002.

“Our pilot plant processes 50,000 gallons of water per day, where the main plant processes a daily annual average of 24 million gallons of water per day. The success of this pilot plant testing prompted us to also convert our Lee Hall plant to ozone. It will be completed in about six months. Upon completion, the total system will serve over 400,000 people,” said Randy Hawkins, pilot plant engineer, Newport News Waterworks. “With that many people in our community relying on us, it is important that we provide the best quality water possible. Making the switch from chlorine to ozone for primary disinfection was a critical step, and using ozone analysis instrumentation from Emerson enables us to continuously monitor the ozone process.”

Both surface water and some ground water sources can contain many different pathogens (bacteria, viruses and parasitic protozoa), some of which are potentially lethal. These water sources can be contaminated by these pathogens, so water treatment plants render these pathogens inactive through a combination of chemical disinfection and filtration.

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Ozone to help with back pain

New treatment uses ozone and oxygen in hand-held device to treat herniated discs

 By Pamela Fayerman, Vancouver Sun

Patients and radiologists at Vancouver General Hospital are the first in North America to test an ozone/oxygen injection treatment to alleviate the pain from herniated discs in the lower back, a condition affecting at least five per cent of adults.

The treatment uses a combination of oxygen and ozone gas because its oxidating effect has been shown to shrink bulging discs, reducing compression by pulling the herniated part away from nerve roots.

Dr. Peter Munk, the Vancouver radiologist who’s leading the local study and is head of the musculoskeletal division at the University of B.C. and VGH, said a 2010 meta-analysis looked at results from about a dozen studies involving 8,000 European patients.

“There was a strong suggestion that patients got better more rapidly with the treatment. What we’re hoping to see here is that through the ozone process, healing will occur rapidly and patients won’t need other interventions like repeated steroid (cortisone) injections and surgery,” said Munk, who is also editor of the Canadian Association of Radiology journal and has no financial interest in the new therapy.

“The disc is like a fibrous doughnut and you get a herniation when an inner part of the disc bulges out through a weakened area,” Munk said, adding that the vast majority (95 per cent) of herniations occur in the lower back (lumbar) area, where they cause pain in the back and legs by pinching on spinal nerves.

The main objective of the clinical trial, now recruiting 25 participants, is to assess the safety of a new Canadian-engineered injection delivery system for the ozone-oxygen therapy. Discs are like the shock absorbers between the vertebrae; the experimental treatment requires radiologists to use CT imaging so they can guide the needle precisely into the centre of the herniated disc.

The procedure takes 20 minutes and, as an outpatient service, should cost the health care system far less than surgery, according to Active-O, Inc., the company which is sponsoring the trial and owns rights to the AO-1000 treatment, developed by Toronto radiologist, Dr. Kieran Murphy, of the University Health Network.

The injectable gas treatment is widely used in Asia and Europe but Murphy’s invention is a new hand-held device which utilizes a special syringe to deliver the treatment. The conventional system is more cumbersome as it uses ozone from massive machines that can only be located in certain hospital settings. The new system involves an oxygen supply from a small canister. Oxygen is drawn into the syringe and with the flick of a button on the hand-held device, an electrical charge generates ozone that is then injected into the lower back area.

Surgery is usually reserved for the worst cases, and involves removal of a portion of the diseased disc and fusion of the vertebrae. Munk said the ozone-oxygen treatment is not meant for the worst cases. it’s intended for the most common types — bulging (contained) herniated discs.

Although infection, bleeding and embolisms are worst-case complications of the ozone treatment, previous studies have shown such risks are less than one per cent or one in 1,500 patients. Even though the new device is being used on humans for the first time (it was previously tested in animals) ActiveO says the design of the device and the use of imaging guidance should all but eliminate risks.

According to the meta-analysis of ozone treatments for herniated lumbar discs, published in the Journal of Interventional Radiology, Italians were the first to inject one to three ml of ozone/oxygen into herniated discs in the 1990s. The study was partly funded by ActiveO, and authors, including Murphy, declared direct or indirect financial relationships with the company.

While ozone therapy has been used extensively in other parts of the world for disc herniation treatment, it is still considered a toxic gas when inhaled and it is controversial as an alternative treatment for other diseases.

Alternative health practitioners have touted it as a remedy because it has been shown to deactivate disease particles in laboratory situations. But there’s a paucity of evidence to support the theory that ozone increases oxygen in the body and that cancer or other diseases won’t thrive in a high oxygen environment.

For more information on enrolment in the VGH disc herniation trial, call 604-875-4612. Munk said hospitals in Alberta and Ontario are also expected to participate in the trial.

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Ozone used for taste and odor control

Ozone Treatment Solution For Water Plagued With Foul Odor And Taste

 

Full article can be read HERE

By Sara Jerome

The tap water in some parts of northern Texas tasted and smelled likes grass clippings recently.

The solution? Treatment plants in the area are betting on ozonation.

 

The cities of Arlington and Fort Worth disclosed in January that the strange odor and flavor were “was partially due to Tarrant Regional Water District changing its source from the Richland-Chambers Reservoir to Lake Benbrook for pipe maintenance,” according to a report by KHOU.

But there is more to it than pipe repairs.

“In addition, a ‘naturally occurring compound’ called geosmin has been rising, which is normal in colder weather when algae in surface water is killed off,” the Star-Telegram reported, citing officials in Fort Worth.

Fort Worth has used Ozone as a disinfectant agent at all plants since fall of 2012, according to the city. The city “pioneered using ozone for primary disinfection in Texas in 1993 with the opening of the Eagle Mountain Water Treatment Plant.”

The benefit of ozonation, according to Fort Worth, is that it oxidizes organic matter in raw water. That means “less coagulation chemicals are needed” in the treatment process.

Full article can be read HERE

 

Oxidation Tech can offer service, and repair of your city water drinking plant.  We also offer spare parts and engineering support when necessary.

 

Ozone use for Papaya fruit

Fresh-cut papaya: Ozone use does not deplete antioxidant properties

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The main problems occurring during fresh-cut papaya shelf-life are the loss of weight, loss of texture, depletion of nutritional value and microbial load increase.

Scientists have evaluated the total phenolic content, the ascorbic acid, the antioxidant capacity, and the microbial load of fresh-cut papaya cubes after exposure to 9.2±0.2µl/L ozone for 10, 20 and 30 minute sessions.
For the study, fruits were peeled, seeds were removed, the pulp was cut into cubes of 2.5 cm3, the cubes were placed in plastic trays and then were put inside the ozone chamber.

Comparing the cubes treated with ozone for 20 min with untreated cubes resulted that in the former the total phenolic content increased by 10.3% while the ascorbic acid decreased by 2.3%.

The initial counts of mesophilic and coliform bacteria were 2.67 log10 CFU/g and 1.81 log10 CFU/g, respectively. The treatment with ozone significantly reduced the microbial load, especially the ozone resulted more effective against coliforms (reduction from 0.39 to 1.12 log10 CFU/g) than against mesophilic bacteria (reduction from 0.22 to 0.33 log10 CFU/g).

Tab. The effects of different exposure time of 9,2±0,2µl/L ozone on the antioxidants and populations of mesophile and coliform bacteria on fresh-cut papaya. Values in columns not followed by the same letter are significantly different (P<0.05) using Duncan’s test. Each value is the mean ± standard error of 4 replicates.

Click here to enlarge the table.

The results suggest that treating the fresh-cut papaya cubes with 9.2±0.2µl/L ozone for 20 min can reduce the microbial load without depleting its major antioxidants, except for ascorbic acid

Source: Yeoh W.K., Ali A., Forney C.F., ‘Effects of ozone on major antioxidants and microbial populations of fresh-cut papaya’, 2014, Postharvest Biology and Technology, Vol. 89, pagg. 56-58. Further info: http://www.sciencedirect.com/science/article/pii/S0925521413003475
Publication date: 1/9/2014
Author: Emanuela Fontana
Copyright: www.freshplaza.com