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  1. Test Kits Help Quantify Microbial Populations in Water

    Municipal and industrial water managers have many test methods at their disposal to analyze physical and chemical parameters (e.g. pH, temperature, turbidity, color, etc.) associated with water samples. However, the options available for biological testing have been significantly more limited. Conventional culturing methods require several days worth of incubation, and even then less than 1% of the total microbial population can be quantified with a single test. A technology that has historically shown promise is the measurement of Adenosine Triphosphate (ATP). ATP is the main energy carrying molecule found in all living cells, thereby making the measurement of ATP a direct indication of total microorganisms in a given sample. While this technology has been historically used for surface testing for hygiene and surface cleanliness monitoring, recent advances now allow ATP monitoring to provide fully quantitative results in essentially any industry where microbiological monitoring and control is needed. Drinking water, cooling water, industrial process streams, and wastewater are all non-conventional ATP testing markets that are now within reach. This "2nd Generation" ATP measurement technology offers a dramatic improvement on conventional culture testing for the purposes of microbiological condition monitoring in water treatment and distribution systems as well as industrial process water systems. This test provides more complete information on total microorganisms in a portable package that allows for testing anywhere while generating results in only a few minutes after sample collection. Rapid test results provide operators with a tool that can not only allow them to troubleshoot microbiological issues on-site, but it can also guide treatment initiatives and assess their efficacy. This usually eliminates the need for subsequent troubleshooting or validation visits, and more importantly prevents the problem from escalating any further – microbiological contamination events are most economically solved in their earliest states of evolution. Other techniques that focus on the quantification of indicator organisms such as Total Coliforms or E. Coli are helpful to reveal when gross contamination has occurred, but it would certainly be more desirable to be aware of problems in their early stages so that the impacts of contamination events are minimized or avoided altogether. While ATP monitoring should not be considered a replacement for regulated tests or indicator organisms, it fills an important need in the form of a rapid non-specific measure of the total microbial population. Monitoring the total microbial population of a water system enables the user to assess overall water cleanliness, and can be used to assess the threat of biofilm formation. As biofilms develop, they may harbor additional microbial threats such as Legionella, Mycobacteria, and pathogenic amoebae, anaerobic microorganisms associated with corrosion and odor issues, and nitrification-related microorganisms. Municipal Water Applications Uncover system vulnerabilities – Due to the speed that results are made available, source-to-tap surveys of water distribution systems can be completed in a matter of hours. When problems are identified, users can "trace up the line" to identify pathways of entry or hotspots in order to isolate and mitigate the problem. Reveal and characterize accumulation and regrowth hotspots – A key deficiency of culture tests is the number of species that are left out and can go undetected. A common example of this is the emergence of nitrifying bacteria in water systems treated with monochloramine. Since ATP is in all cells including those that are not easily cultured, nitrifying bacteria will be detected among the indigenous population, thereby detecting nitrification issues in their earliest stages of evolution. Optimize flushing cycles – The lack of tools available for assessment of line flushing can result in significant wastage of water and time since it is difficult to tell how much flushing is enough. When water operators use traditional microbiological methods, equipment can be left in the field for several days until results are known. ATP monitoring not only allows the operator to tell how much flushing is enough, but also permits flushing crews to move on to the next location as soon as the cycle is complete with no waiting. This has obvious economic benefit. The Canadian company LuminUltra ( www.luminultra.com ) offers ATP test kits suited for use in drinking water and wastewater applications. Its Quench-Gone Aqueous (QGA) kit is appropriate for testing source waters, treatment process effluents, treated water, water tanks, water distribution systems and point-of-use samples. It can also be used for disinfected wastewater effluents and systems using intensive tertiary treatment. The company's QuenchGone21 Wastewater (QG21W) kit is designed for testing aerobic or anaerobic bioreactors, raw influents and collection system samples. The company also offers a Deposit and Surface Analysis (DSA) kit suited for testing slimes and deposits as well as quantifying attached growth on biologically active filter media. Conclusion 2nd generation ATP technology is a game-changer for a multitude of industries – including the municipal and industrial water markets. The economic advantages of shortening test response times from days to minutes are many, and offer the opportunity to dramatically improve safety, security and environmental impact. One of the greatest advantages to this technology is the capability of quantifying total microorganisms, including those for which culture tests are not equipped to measure (ie. nitrifying bacteria, many corrosion-related bacteria, some protozoa, and Archaea). Along with other molecular biology techniques, the field of microbiological measurement is rapidly changing, shifting away from the old culture-based techniques to new techniques that together operate as a ‘tool box' that will lead to more rapid and effective anti-microbial initiatives in municipal and industrial processes.

    Magazine Articles

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    Sat, 1 Sep 2012

  2. Showcase

    BWA recently introduced its new chemical inhibitor modeling software, BWA WaterCycle.

    Magazine Articles

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    Sun, 1 May 2011

  3. Water Briefs

    Ecosphere Technologies, a diversified water engineering and environmental services company, has completed the initial six months of an environmental services contract ...

    Magazine Articles

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    Thu, 1 Jul 2010

  4. Briefs

    As part of Pakistan’s Clean Drinking Water for All (CDWA) initiative, approximately 6,000 water treatment plants will be built across the country.

    Magazine Articles

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    Mon, 1 Mar 2010

  1. New Logic Research partners with Kantharos to serve winery market

    Online Articles

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    Tue, 26 Jan 2010

  2. Water Briefs

    Canadian parent of EIMCO Water Technologies, GLV Inc. launched a friendly takeover bid to purchase Austria-based industrial and municipal water treatment company Christ Water Technology AG.

    Magazine Articles

    Magazine Articles

    Thu, 1 Oct 2009

  3. Siemens to provide sustainable process water system for Dr. Pepper Snapple Group bottling plant

    WARRENDALE, PA, July 8, 2009 -- Siemens has been awarded a multi-million-dollar contract by The Benham Companies to provide a process water system for Dr. Pepper Snapple Group's new bottling plant in Victorville, California...

    Online Articles

    Online Articles

    Wed, 8 Jul 2009

  4. Production of HPW/WFI pusing RO, EDI and Ultrafiltration

    Integrity of process water system in the pharmaceutical water plant is assured by packaged, skid-mounted high purity system for ultra-pure water

    Magazine Articles

    Magazine Articles

    Tue, 1 Jan 2008

  5. Automaker turns to zero liquid discharge to save water, money, environment

    Located 37 miles north of Mexico City, the highly industrialized city of Toluca is short of water, and the problem is getting worse each year. The region is running out of water. DaimlerChrysler is concerned with the mounting strain on the world's natural resources and continually seeks ways to ...

    Online Articles

    Online Articles

    Tue, 11 Dec 2007

  6. Western Refinery Upgrades Its Boiler Feed Water

    Amid the scenic beauty of the Southwest just north of Carlsbad Caverns National Monument along the Pecos River lies the Artesia, N.M., petroleum refinery of the Navajo Refining Company, L.P., a subsidiary of Holly Corp.

    Magazine Articles

    Magazine Articles

    Sat, 1 Jan 2005

  7. OMNI wins big contract for design/build of pharmaceutical water system

    OMNI Technologies Inc. was awarded a second phase for the complete design and build of the USP Pure Water Final Rinse Systems for a major pharmaceutical company, bringing its total revenues on the Puerto Rican project to over $2.2 million...

    Online Articles

    Online Articles

    Tue, 16 Nov 2004

  8. Selecting Mechanical Dewatering Equipment: Guidance for Drinking Water Systems

    Like factories, drinking water treatment facilities transform a raw material into a usable product.

    Magazine Articles

    Magazine Articles

    Thu, 1 May 2003

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