Palintest Chosen as Exclusive Supplier of Chlorine and Ozone Testing Products to Ting Hsin Group in China

The Ting Hsin International Group, a leading Chinese food and beverage manufacturer, has recently chosen Palintest as its exclusive supplier of residual chlorine and ozone testing products. These products will be used in the Group’s water plants and production lines across the country, providing high-quality chemical testing for over 50 beverage subsidiaries in the group.

Ting Hsin

The Ting Hsin is responsible for the iconic ‘Master Kang’ brand of instant noodles as well as numerous other food and drink lines. The Palintest products will be used in the company’s beverage and water facilities to measure chlorine and ozone levels throughout the production process, making sure that all chemical levels are kept in the ideal ‘safe’ zone – high enough to be effective disinfectants, but low enough to avoid impacting on taste or quality.

About Palintest
Based in the United Kingdom, Palintest (www.palintest.com) is a specialized manufacturer of water analysis technology, with its origins dating back to 1870. In the 1950s, Dr. Thomas Palin joined the company after developing the principal of breakpoint chlorination for water and inventing the DPD testing method for chlorine levels in drinking water. The DPD method, though over 50 years old, is still the recognised standard chlorine test both in China and around the world. Through continued improvement, refinement and innovation, the company is now the world’s leading producer of a full range of testing equipment and reagents for water, soil, and the environment.

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Thin Films Division of Ocean Optics Forms New Company

Spin-off becomes part of the Health Optics & Photonics Division of Halma p.l.c.

Ocean Optics (www.oceanoptics.com), the industry leader in miniature photonics, announces that its Thin Films Division has now become a separate company. Ocean Thin Films (www.oceanthinfilms.com), as the new entity will be known, designs and manufactures patented dichroic filters and precision optics for scientific, biomedical and defence applications, metrology and entertainment technology.

Ocean Thin Films

Established in 1999 as a division within Ocean Optics, Ocean Thin Films designs and produces high-volume dichroic optical filters, which are used to selectively transmit light according to its wavelength. These precision filters and other optical components can be integrated into applications such as colour-changing light for architectural and entertainment installations, CCD camera and spectral imaging for scientific instrumentation, and targeting for defence applications. In November 2008, Ocean Thin Films acquired the Colorado operation of Oerlikon Optics USA, which bolstered the company’s offering in optical components and subassemblies for instrumentation used in the life sciences, medical applications and additional scientific applications.

“We are excited by the challenges and opportunities of operating as our own company,” said Phil Buchsbaum, President of Ocean Thin Films. “With the additional expertise and capacity the Oerlikon acquisition affords us, plus recent expansion of our Florida facility, we are ready to hit the ground running with a new generation of quality, innovative optical and thin film products for a diverse range of industries.”

Ocean Thin Films has 110 employees, with locations in Colorado, USA, and a recently expanded facility in Florida. The group utilises advanced lithography equipment and vacuum deposition systems to provide optimal patterned solutions for both production and prototype optical systems.

Ocean Thin Films is part of Halma p.l.c.’s group of photonics companies, joining Ocean Optics, Labsphere and Fiberguide Industries.

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Labsphere’s Space-Grade Spectralon Flight Diffusers chosen for NASA Earth Observation Mission

Labsphere has been selected to custom-engineer a set of in-flight diffuser panels for an upcoming NASA Earth observation mission.  Ball Aerospace & Technologies Corp. is supplying the Operation Land Imager (OLI) to the LANDSAT Data Continuity Mission using Labsphere’s Space-Grade Spectralon® plates to calibrate the instrument’s in-flight cameras.  The Labsphere targets deliver the highest level of uniform light integration with the stability required for the five-year global imaging mission.

Ball Aero NASA

(Photo caption: Labsphere’s Space-Grade Spectralon panels will be used to calibrate in-flight cameras on the LANDSAT Operation Land Imager.)

For the OLI’s sensor, Ball Aerospace required an optically, thermally and environmentally stable calibration standard that delivers extremely stable, reproducible spectral reflectance.  Labsphere’s Space-Grade Spectralon was selected for its greater than 99 percent reflectance value and proven track record of success in over 25 space-flight applications.

Labsphere’s Space-Grade Spectralon is the only recognized Lambertian material that has been used in launch environments and is fully characterized.  The company will develop and build six in-flight diffusers for delivery in spring of 2009.

LANDSAT satellites have been collecting data of the Earth’s continental surfaces for the last 30 years, creating the longest continuous record of Earth’s surface as seen from space.  The data and imagery collected in these missions is used agricultural monitoring, natural resource management and land-use planning.  The OLI is to be part of the eighth mission in the series, slated to launch in 2012.  Its 15 meter panachromatic and 30 meter multi-spectral imaging spatial resolutions create a wide enough swath to image the entire planet in just 16 days.

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New Pulsair IntelliPuff® Non-Contact Tonometer Is More Accurate And Has The Lightest Puff Ever

The new hand-held Pulsair intelliPuff® non-contact tonometer from ophthalmic instrument specialist Keeler has been radically redesigned and improved, making this 5th generation tonometer smaller, lighter and more accurate than any previous model. It also has an exceptionally light puff that is gentle on the patient’s eye. 50% smaller than conventional non-contact tonometers, the instrument can either be desk- or wall-mounted. The redesigned hand piece with revised user controls now also features a forehead stabiliser to further aid alignment and the automatic measurement process.

Pulsair intelliPuff

When taking an intraocular pressure reading, the intelliPuff® senses any unusual parameters, such as a dry eye or a damaged cornea, and automatically adjusts its measuring criteria. Its intelligent optical and electronic technology evaluates every reading to ensure the tightest range. When enough reliable readings have been taken, a time-saving audible signal alerts the user. The intelliPuff® software analyses the readings and eliminates any anomalies from the final displayed result.

In addition, users can take advantage of Pulsair’s significantly increased accuracy by selecting the display mode to measure IOP in either 1mmHg or 0.1mmHg increments. The intelliPuff® gives the user control over system parameters – operators can choose between clinical mode and automatic mode, thus allowing the system to monitor firing parameters.

Keeler Limited is a specialist in diagnostic and magnification products for professionals in the optical and healthcare Industries.

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Large Warehouses Protected by Fireray Smoke Detectors

Over 40 Fireray reflective beam smoke detectors from Fire Fighting Enterprises have recently been installed in warehouses in Croatia in south-east Europe. Wide open indoor spaces like warehouses are particularly suited to the smoke detection capabilities of beam detectors, which cover huge areas with few units.

FFE Croatian Warehouse

12 Fireray 50R and 100R detectors have been installed in two large furniture and carpentry warehouses in the capital, Zagreb; 17 F100R units are protecting a healthcare and hygiene products distribution centre in Inanić Grad; and 12 Fireray 100Rs are ready to detect unwanted smoke at a personal protection equipment site in Sveti Križ Začretje. The Fireray detectors now form part of the fire safety systems fitted for these premises, along with Hochiki point detectors and Kentec control panels.

The Fireray 50R and 100R products use a single combined transmitter and receiver unit, with small reflective prism plates placed on an opposing wall, to detect smoke over an area of up to 1500m2. Smoke entering the beam path causes a loss in signal strength received, and once this falls below a specified threshold the alarm will be sounded. The shape and layout of warehouse-like structures means that the Firerays can be at their most useful, with the spacious interiors perfect for beam detection.

Each beam covers 7.5m either side of the direct path between the detector head and the prism, which means a total area coverage of 1500m2 for one single F100R. Up to 15 ‘point’ detectors would be needed to safely protect an area that size, each bringing with it the additional cost of product, installation and cabling. If the beam is accidentally interrupted by a solid object, a ‘fault’ alert will be generated so that fire protection is not undermined.

About Fire Fighting Enterprises:
Fire Fighting Enterprises, a subsidiary of Halma p.l.c., is the world’s largest independent manufacturer of infrared optical beam smoke detectors and a leading manufacturer of fire extinguishers for the aviation market. In addition, the company manufacture standard and ATEX certified explosion proof switches and industrial vibration switches. Details of the full range of smoke detectors from FFE can be found on its website at www.ffeuk.com .

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Elfab’s Videos Clarify Rupture Disc Installation Process

Short films show correct procedure for all main product lines

Elfab, one of the world’s leading pressure management specialists, has become the first member of the rupture disc industry to offer installation videos to its customers.

The three-minute films detail the entire rupture disc installation process, from removing the old disc, through handling and fitting its replacement, to finally correctly tightening the pipework. Separate films have been made for Elfab’s forward- and reverse-acting rupture disc ranges, while a third covers the company’s graphite rupture disc, Universal Arma-Gard™.

Elfab is keen to underline the importance of its products being correctly installed. It is vital that, as safety devices, they are fitted carefully and as advised by the manufacturer. If rupture discs are damaged, misaligned or wrongly fitted, they risk operating incorrectly, with potentially serious consequences for the organisations concerned.

The films have been created to support Elfab’s paper installation guides. Elfab operates a sustainable environmental policy and is keen to eliminate paper waste. The launch of the installation videos is helping both the company and its customers to reduce their paper consumption. The films can be requested on DVD from Elfab, or downloaded from the company’s website: http://www.elfab.com/gb/products/installation-guides.php .

Elfab has over 75 years’ rupture disc experience and aims to share this expertise with its customers. It offers customers extensive training programmes tailor-made to their specific needs, which can, if required, include these training videos.

The installation films coincide with the launch of the company’s new rupture disc installation tool Test-Tel™, which also seeks to ensure ease and accuracy during the rupture disc installation process.

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Wastewater Reuse Using UV Disinfection

Introduction

The UV disinfection industry has experienced tremendous growth over the last 20 years.  The development of new UV technologies over this period is a perfect example of an industry investing to meet market demand – in this case demand for an effective, low cost, and environmentally friendly way to disinfect wastewater for reuse.

Anthem, Arizona - watewater reuse

The acceptance of UV disinfection at wastewater plants treating in excess of one billion gallons daily is proof that UV is no longer an ‘emerging’ technology, but rather an accepted technology to be used routinely by engineers to safeguard human health and alleviate environmental pressures.

Wastewater reuse has been practiced in various forms for decades, with the United States leading the way in reuse research. It is now a major issue in the US where large areas of the Western and Southern states experience chronic water shortages. The problem is becoming more acute with many of the most arid states, such as Nevada and Arizona, experiencing rapid increases in their urban populations since the 1990s. Large-scale reuse projects are now also being considered in other water-poor regions of the world such as Australia, southern Europe and China.

New Technology

The use of computational fluid dynamics (CFD) modelling has vastly improved UV equipment manufacturers’ ability to predict with confidence the level of treatment required for wastewater using their proprietary equipment. All manufacturers will soon use this tool to optimize the dose delivery of their reactors and minimize energy costs. Also, as manufacturers develop and improve optimized UV reactors, they will be able to validate the designs using USEPA, NWRI or European validation protocols.

Conventional UV lamp technology will also improve over the coming years, with medium pressure lamps continuing to see gains in energy efficiency, lamp life and power density, and Quartz coating techniques extending lamp life to well over 12,000 hours.

Concerns

A major concern to the UV industry is the issue of microbial reactivation – the apparent ability of some microorganisms to repair the damage done to their DNA by UV, reactivating their ability to infect.  DNA repair can occur in a closed (dark) system, but is more likely in open systems under direct sunlight (photoreactivation). The dose level and lamp type seem to affect the degree of reactivation, with low pressure (single wavelength) UV lamps appearing to be more susceptible to photoreactivation than medium pressure (multi-wavelength) lamps (see reference 1). A much larger research effort into the area of photoreactivation is required and will most likely be forthcoming over the next five years.

A significant amount of research has also targeted the question of UV disinfection by-products (DBPs), specifically the most common water constituents such as chlorine, bromide, nitrate, ozone, natural organic matter and iron. At normal UV disinfection doses no significant disinfection by-products have been shown to form.

Benefits of UV for the reuse market

The most common method of wastewater disinfection for reuse has long been chlorination. Despite chlorine’s impressive track record, concerns regarding DBPs and, more recently, disinfection performance with respect to pathogen inactivation, are driving the conversion from chlorine disinfection to other disinfection methods such as UV, which does not produce any DBPs.

Closed vessel UV systems are easy to install within existing pipework, so there is minimal disruption to plant operation. Day to day operation is simple and only minor maintenance is needed. The only regular requirement is changing the UV lamps and wiper rings once a year, a straightforward operation that can be carried out by on-site personnel.

UV systems for wastewater reuse are also validated to much higher doses than drinking water systems, according to protocols established by the National Water Research Institute (NWRI). Drinking water type product validation, with the accompanying rigor, will emerge as the dominant method of assessing suitability for these critical applications. The ability to prevent photo repair will also emerge as key.

Applications for wastewater reuse

Potential applications for wastewater reuse are extremely wide-ranging and include any instance where water is needed for non-potable or indirect potable use. The most popular and widespread use is for agricultural irrigation, with the USA leading the way, but with China and a number of Australian states also making significant progress. Other irrigation uses include landscape and recreational applications such as golf courses, parks, and lawns.

Reclaimed wastewater is also used for groundwater recharge applications such as aquifer storage and recovery or preventing saltwater intrusion in coastal aquifers. Other uses include toilet and urinal flushing, fire fighting, foundation stabilization in the construction industry and artificial snow generation. In all these applications, reuse wastewater relieves the burden on existing municipal potable supplies.

The Singapore Water Reclamation Facility (NEWater), a joint initiative between the Singapore Public Utilities Board (PUB) and the Singapore Ministry of the Environment and Water Resources, is a well-known example of water reuse on a large scale. NEWater is treated, used water that has undergone a stringent purification and treatment process using advanced dual-membrane (microfiltration and reverse osmosis) filtration and UV disinfection. The primary use of NEWater is for wafer fabrication processes and other non-potable applications in manufacturing processes. However, the PUB also uses NEWater for indirect potable use by mixing and blending it with raw water in reservoirs prior to conventional treatment at waterworks for supply to the public for potable use. According its website, the PUB currently adds 3 mgd of NEWater (about 1% of total daily water consumption) into raw water reservoirs, and the amount will be increased progressively to about 2.5% of total daily water consumption by 2011.

Case study – Arizona, USA

Two golf courses in the town of Anthem in Arizona, USA are using UV-treated wastewater for irrigation. Founded just over 10 years ago Anthem, a town just north of Phoenix, now has a population of over 40,000. As part of its rapid expansion the town recently installed three closed chamber, medium pressure UV system from Berson’s US sister company Aquionics to disinfect its wastewater. This allows the town to not only meet increased demands in its water and wastewater treatment capacity, but also to exceed the output quality standards.

“The wastewater is treated by three Berson InLine systems handling a combined flow of three million gallons (over 11.3 million litres) per day,” explained Anthem’s wastewater Foreman Jeff Marlow. “They work in conjunction with microfiltration and nitrification/denitrification. We chose the Berson UV systems because they are optimised to meet the Arizona Pollutant Discharge Elimination System (AZPDES) Permit Program,” he added.

The two local golf courses currently use a combination of UV treated wastewater and fresh river water for irrigation, but with increase in population, it is expected that the courses will soon be using wastewater exclusively.

An automatic cleaning mechanism keeps the lamp sleeves free of organic deposits for consistent UV dosing. Each chamber is also fitted with UV monitors to measure actual UV dose for record keeping. With the addition of an optional online transmittance monitor, real time transmittance values are used to automatically adjust the dose pacing of the UV system.

Conclusion

The UV industry has matured considerably over the last decade and is now highly regulated and dominated by the world’s major water technology companies. Conventional UV technologies have been field tested and now have considerable track records in a wide range of applications. Uncertainties surrounding regulations, royalties, technology and engineering have decreased and acceptance of UV is expected to grow rapidly over the next 20 years. Conventional UV designs have been greatly aided by CFD, which will be used as a routine sizing tool for future designs.

The stage is now set for dramatic growth in the wastewater reuse market, especially with increasing populations putting even more pressure on already overstretched water resources in many regions of the world. Tighter limitations on pollution discharge will also play an important role in the development of this technology.

References:
1. Hu J. Y.,  Chu, S. N.,  Quek, P. H., Feng, Y. Y.,  and Tan, X. L. (2005). Repair and regrowth of Escherichia coli after low- and medium-pressure ultraviolet disinfection. Water Science and Technology: Water Supply, Vol. 5, No. 5, 101-108.

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