Ozone and Advanced Oxidation Might Destroy Prions

In prion research, decontamination is an important issue. The misfolded prions that cause mad cow and chronic wasting are difficult to destroy by traditional means.

According to Dr. Norm Neumann of the School of Public Health at the University of Alberta, experiments with advanced oxidation and ozone treatment may hold some promise. “The pathological disease, as we know it, is caused by a misfolded protein causing another normal protein to misfold. And so there’s this chain reaction that goes on. Some of the work that we’re doing demonstrates that ozone can actually destroy that protein enough to inactivate the templating properties or the pathological process that we see.

“We’ve seen that in a test tube – and the big question for us now is can we begin to understand this and model it in an engineering context and understand complete destruction of this? Then we must cross validate that information in animal infectivity models.”

Dr. Neumann suggests that, if the advanced ozone treatment works, we may one day be able to dispose of prion infected material through something as simple as composting.

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City Of Wichita Treat to Surface Water For Reuse Using Advanced Oxidation Technology

An advanced oxidation system has been selected by the City of Wichita, Kans., for a crucial step in the process of treating excess water flow from the Little Arkansas River for aquifer storage and future reuse. The system will treat 30 million gallons of surface water per day using the ozone/peroxide advanced oxidation process (AOP)—to destroy atrazine, control bromate formation, and meet virus inactivation requirements for health and human safety.

Atrazine, a known endocrine disrupting chemical (EDC) and the main ingredient in about 40 name-brand herbicides, is showing up in drinking water supplies, causing concern among regulatory agencies throughout the United States. Herbicides often move with rainwater from the point of application to nearby bodies of water, such as reservoirs, ponds and lakes, eventually finding their way into drinking water supplies.

The ozone/peroxide advanced oxidation system can help meet disinfection requirements while also destroying trace contaminants and minimizing the formation of by-products, such as bromate, making it ideal for drinking water applications, as well as water reuse and process water clean-up.

The process injects and mixes ozone and hydrogen peroxide to maximize the production of hydroxyl free radicals—one of the most powerful oxidants available for water treatment—to treat various compounds. AOP is significantly more efficient than ozone alone with respect to both ozone dose and reaction time, enabling lower operating costs and improved performance with a smaller equipment footprint.

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CALL FOR PAPERS – International Ozone Association Conference – 2 0 – 2 2 S E P T E M B E R 2 0 1 0 – Seattle, WA

The International Ozone Association is asking for paper for their conference in Seattle, WA September 20-22, 2010.

TOPICS MAY INCLUDE:
• Advanced Oxidation • Food, Beverage & Agricultural
• Air Treatment & Building Remediation • Industrial Applications
• Aquatic Animal Life Support • Microorganism Inactivation
• Biofiltration • Ozone Generation
• Bromate Formation & Control • Regulatory Perspectives
• Chemical & Biochemical Reacions • Spa / Pool / Aquarium
• System & Component Design • Ultrapure Water
• Drinking Water Treatment • Wastewater Treatment
• Emerging Contaminants

Additional Topics will be considered

SUBMISSION FORMAT REQUIREMENTS:

Abstracts are to be a minimum of two and a maximum of four paragraphs (approximately 500 words) on 1 to 2 double-spaced full pages of text (12-point, Times New Roman font), including bibliography. Additional pages of supporting tables and graphics may be included. Each page must contain a ”footer” with the corresponding author’s last name, abstract title, and page number (example: Smith, Regional Approach to XYZ, page 1 of 2).

Abstracts must clearly define the objectives, status, methodology, findings, and significance of the investigation, study, application, or installation review. Submissions on hot topics, regulatory issues, and new water or wastewater technologies and/or applications are especially welcome. There is no limit to the number of abstracts that may be submitted by an individual, company, organization, or institution. Membership in IOA is not a requirement for presentation. The official language of the IOA-PAG technical programs is English.

Abstracts are due by March 1, 2010. Please email submissions to abstracts@io3a.org. Hotel and registration information will be available through our website www.io3a.org and the PAG office.

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ESCO International Demonstrates High Performance Advanced Oxidation Processes for TOC and COD Reduction

The combination of state-of-the-art UV and ozone technologies with additional oxidant and catalytic process steps as well as extensive pilot trials helped ESCO International design innovative advanced oxidation processes that can be extended to new challenging fields such as TOC (total organic carbon) reduction which were previously thought to be unworkable and uneconomical.

ESCO International installed and successfully tested its high performance advanced oxidation process, the CATADOX, for the reclaim and reuse of 300 m3/h of process water containing up of 20 ppm of TOC (total organic carbon). The reduction target was met thanks to the high performance of the advanced oxidation system design and as a result the company saves up to 2.6 millions m3 of water per year.

On site optimization of the advanced oxidation process (AOP) operating parameters was successfully carried out in order to meet the required TOC reduction of 75%. As a result, ESCO International designed and supplied a new advanced oxidation plant to treat 600 m3/h of water for TOC reduction.

ESCO International offers full scale ozone and advanced oxidation processes (AOP) for water and gas treatment applications. Our advanced oxidation processes are most often used to treat challenging and specific organic compounds from water and cost effectively reduces TOC and hard COD.

Advanced oxidation processes can efficiently treat a wide range of recalcitrant & bio-toxic organic contaminants, Endocrine Disrupting Compounds (EDCs), Pharmaceutical and Personal Care Products (PPCP), Active Pharmaceutical Ingredients (API), hard COD and is very effective against new and challenging applications such as TOC reduction.

ESCO International provides an innovative portfolio of technical services and equipment, specializing in Ozone, UV systems and engineered advanced oxidation processes for water, gas effluents and odor treatment.

Spartan Environmental Technologies is ESCO’s North American marketing partner for the CATADOX Process

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Spartan Environmental to Exhbit and Present at WQA Aquatech USA

Spartan Environmental Technologies and UV Sciences will jointly exhibit at WQA Aquatech USA March 10-12th in Orlando, FL at the Orange County Convention Center. Spartan will feature its SPARTOX fully integrated compact ozone water treatment system on a skid while UV Sciences will feature their compact high efficiency UVSI systems. Both companies will jointly exhibit the combined Ozone UV Advanced Oxidation Process (AOP) for removing difficult to treat contaminants from water. Spartan’s Marketing Director will give two presentations at the Educational Session jointly sponsored by the International Ozone Assocaition (IOA) and International UV Association (IUVA). The first will discuss the use of Ozone UV AOP for removal of methanol in a laboratory water reclaim system. the second will discuss the use of ozone in a rainwater harvesting system.

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San Diego Upgrades Miramar with Ozone Equipment

Construction on the upgrade and expansion of the Miramar Water Treatment Plant is on schedule. The project will increase the drinking water treatment plant’s capacity from 140 to 215 million gallons per day. About 500,000 San Diegans get water from this plant.

Work is underway and should be complete by March 2010. This work is to install the ozone disinfection equipment. Ozone will be used to disinfect the drinking water. Before the water leaves the plant, chlorine will be added to provide a disinfectant “residual” so the water remains disinfected before it is used.

Starting approximately February 12, the construction team is testing and implementing the new ozone disinfection system safety alarms. These alarms ensure safe operation of the plant and alert employees to matters needing attention. Starting approximately February 17, crews will begin the start-up phase of the ozone disinfection equipment. This will continue through April.

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