Senate Bill Would Favor Ozone and UV Water Treatment

March 3rd, 2010

The Chemical and Water Security Act, H.R. 2868, now under consideration in the Senate Homeland Security and Governmental Affairs Committee, as well as the Senate Environment and Public Works Committee, establishes a permanent comprehensive program that would require high-hazard chemical plants to review methods to reduce the consequences of a terrorist attack. It would require the very highest hazard facilities to implement such techniques where cost effective, technically feasible, and risk reducing. And also it would provide limited funding for facilities that upgrade to safer, more secure technologies.

These measures would help secure our nation’s chemical facilities and keep Americans safer. And in fact, reports from the Center for American Progress show that many companies already use intrinsically more secure technologies that remove the danger of a major toxic gas release.

Organizations would adopt an alternate chemical or process, use a chemical in a less dangerous or less concentrated form, or generate a chemical only as needed without storage. For water utilities eliminating bulk chlorine gas by using liquid bleach, ozone, and ultraviolet light are good choices. These changes remove unnecessary dangers and avoid certain costs related to regulatory compliance, liability insurance, personal protective equipment, community notification, site security, and emergency planning.

Ozone and Advanced Oxidation Might Destroy Prions

February 25th, 2010

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.

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

February 22nd, 2010

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.

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

February 17th, 2010

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.

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

February 15th, 2010

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

Spartan Environmental to Exhbit and Present at WQA Aquatech USA

February 10th, 2010

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.

San Diego Upgrades Miramar with Ozone Equipment

February 9th, 2010

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.

Winter Algae Bloom Gives McKinney Texas More Reasons to Use Ozone

January 19th, 2010

McKinney, TX residents noticed a metallic or earthy taste and smell to their water. The change is the result of a winter algal bloom at Lake Lavon. This is less common than a mid-summer algal bloom, which arrives in late July and into August. During a bloom, lab analysis can show high levels of geosmin and MIB, organic compounds released during the decomposition of algae that are responsible for the water’s undesirable taste and odor.

McKinney is served by the North Texas Municipal Water District (NTMWD) receives raw water supplies from: Lavon Lake, Jim Chapman Lake, Lake Texoma, Lake Tawakoni, and Lake Bonham for treatment and distribution to the region served. NTMWD is pursuing the implementation of ozonation, a process that uses ozone as a disinfectant, to meet new state and federal guidelines going into effect in 2012, and the new treatment method will also will also significantly reduce and/or eliminate taste and odor issues caused by algal blooms. Dallas, Fort Worth and Arlington have all had success with ozone for algal taste and odor issues. The organization’s current treatment process can only lessen these issues.

Ozonation is very effective for inactivating Cryptosporidium, bacteria and other naturally-occurring organisms. Ozonation also can reduce the formation of trihalomethanes (THMs), which result from the interaction of chlorine and naturally-occurring organic material in the source water. Additional benefits of this process is that it helps to alleviate taste and odor issues in treated drinking water, such as those experienced during algal blooms in Lavon Lake.

A preliminary engineering study for the utilization of ozonation as a primary disinfectant at the NTMWD Wylie Water Treatment Plants has been completed by the NTMWD staff and consulting engineer. The study provides the framework for the engineering design of ozonation facilities to be constructed at the Wylie Water Treatment Plant to meet the Texas Commission on Environmental Quality Stage 2 Disinfection Byproducts rules. A design contract has been executed with a consulting engineer, and the design has commenced. A purchase order has been issued for procurement of ozone generation equipment. The NTMWD anticipates completion of the design to allow for construction bids to be brought to the NTMWD Board of Directors for consideration in the fall of 2010. The project is estimated to cost $140-$150 million and will take several years to construct and place into operation. The current schedule includes implementation of the ozonation treatment process taking place in stages during the latter part of 2013 and early 2014.

Springfield Missouri Looks to Up Grade Ozone Generators

January 15th, 2010

Springfield Public Works (Missouri) is looking at making large-scale upgrades at sewage treatment facilities this year. The utility is seeking to replace old ozone generators and a sewer line. They have rolled out a proposal that asks the city to secure up to $13 million in special obligation bonds. Missouri DNR rated the ozone generator project the No. 1 “green project” in the state.

Ozone generators are extremely effective in disinfecting wastewater. In addition they potentially can remove pharmaceuticals and personal care products that can end up in drinking water by way of wastewater discharges. Ozone also helps to oxygenate the water before it is returned to rivers enhancing the overall health of the ecosystem.

Springfield Public Works wants to replace ozone generators at the Southwest Wastewater Treatment Plant. That would increase the facility’s capacity to disinfect from 65 million gallons a day to 100 million gallons a day. The generators are about 30 years old and replacement parts are expensive and difficult to come by. If the city had the new generators, it would likely save $4 million in operating costs in the next 20 years. Despite the increased difficulty to find parts, it is does demonstrate that high quality ozone generators can be expected to give extremely long lived operation.

Federal Building in NYC to Harvest Rainwater with Ozone/UV Treatment

January 7th, 2010

The Thursgood Marshall Federal Building in NYC will have a rain water harvesting system which will employ filtration, ozonation and UV to insure the water is safe for use in the building. While many rain water systems employ UV, the engineers for this building decided to add the extra protection of ozone.

Ozone water treatment leaves a residual of ozone in the water. By recycling the water in the tank through the ozone system, ozone disinfect both the water in the tank as well as prevents the formation of bio films on the tank walls. UV only treats the water that passes through the UV reactor. It can not prevent contamination of the storage tank or prevent secondary contamination down stream of the reactor. Combining the UV and ozone technologies provides seamless protection for the water system.

Spartan Environmental Technologies was chosen as the supplier of the ozone water treatment system. Spartan will be providing one of it’s SPARTOX ozonation systems for the application.