pure water Articles

  • Why companies are increasingly adopting water reuse practices

    As water supplies around the world become more strained, companies are turning their attention to water recovery as an integral part of their processes. When companies choose to take control of their resources through sustainable reuse practices, they gain several advantages. SECURE FUTURE WATER SUPPLY In the U.S., the water stress ratio – a measure of the ...


    By MECO Incorporated

  • Top 5 Differences between Micro Pulse LiDAR and Ceilometer Technology

    If you are evaluating backscatter LiDAR sensors for measuring aerosols, cloud vertical structure, and planetary boundary layer (PBL) heights, what factors should you consider in your comparison? It really comes down to a choice between the traditional analog technology used in ceilometers and the more recent advanced technology found in Micro Pulse LiDAR (MPL) sensors. ...

  • HF Pure Water VS. The Coffee Borer Beetle

    Recently, HF Pure Water successfully installed a Chlorine Removal System at a small coffee farm on the big island of Hawaii. Like many coffee farms in the area and around the world, the coffee bean crop had been devastated by the Coffee Borer Beetle. An all-out effort was needed to rid the farm’s crops of this beetle as many small farms has had their entire crop destroyed, resulting in ...


    By HF Pure Water

  • The Generation of Pure Water

    As a world leading manufacturer of complex multi-port stainless steel diaphragm valves, GEMÜ has earned an excellent reputation in the biotech and pharmaceuticals’ markets. GEMÜ is now transferring the skills acquired in biotech and pharmaceutical applications, to water applications by designing and manufacturing plastic multi-port block valves. The space saving compact build, ...


    By Modern Pumping Today

  • HF Pure Water visits the Middle East

    HF Pure Water recently participated in the Water, Energy, Technology and Environment Exhibition held in Dubai, UAE. In speaking with numerous people that visited the HF Pure Water booth, it became apparent that there were limited opportunities for waste water treatment as many manufacturers simply dumped their wastewater into the ocean. This was confirmed in a meeting held with the Dubai ...


    By HF Pure Water

  • Pure water pH measurement in low conductivity samples

    Normally, pH measurements are made in water with 1,000 to 10,000 uS/cm conductivity. The conductivity conies from dissolved solids, typically, salts plus net acid or base which explains the exhibited pH. These dissolved substances are in the solution in ion form, which makes such solutions conducting. With 1,000 uS/cm conductivity of mobile ions pH electrodes have a good circuit and give fast, ...


    By IC Controls Ltd.

  • Cycle chemistry pH measurement

    pH measurement in high purity water has met with variable success. The high resistivity of pure water, the vulnerability to contamination, the variability of reference electrodes and additional temperature effects converge to make tins a particularly challenging measurement. Overcoming these obstacles requires a thorough understanding of the potential problems and their systematic solution. ...


    By SnowPure Water Technologies

  • Taking the pressure off desalination

    California-based PAX Pure hopes to offer a new solution to water scarcity with its groundbreaking water purification tool. Developed by Jay Harman and Tom Gielda, PAX Pure technology desalinates and demineralizes water without membranes, moving parts or chemicals. Instead, the technology simply mimics high-altitude conditions. The big challenge with conventional ...


    By Ensia

  • Counting the whole life cycle cost of pure water production

    In this article we define various grades of pure water, review technologies available for its production, and describe two systems where various process combinations have been used to generate pure water for pharmaceutical and power generation applications. We ask Dr John Hutcheson, a specialist consultant in pure water systems, what costs are involved in pure water production and what ...


    By Clarity Authoring

  • Conductivity Measurement in high purity water samples below 10 microsiems/cm

    High Purity Water Resistivity/ Conductivity Measurement Ultra-Pure Water without any chemical impurities will still have a conductivity because of the presence of H* and OH" ions due to the self-ionization of water. Ultra-pure water has a conductivity of 0.055 HSiemens'cm or a resistivity of 18.18 mQ-cm at 25 °C. In order to know the conductivity or resistivity of ultra-pure water it is ...


    By IC Controls Ltd.

  • Ultra-Pure Proof with Mass Detection

    Before joining the newly formed Reach Separations in February 2012, I spent five years at AstraZeneca in analysis and purification (latterly as group lead in reversed phase and chiral purification). This experience gives me a good perspective of both the needs of “big pharma” and, more recently, the needs of a specialist separation solution provider. My ...


    By Waters Corporation

  • Treatment of textile wastewaters using Eutectic Freeze Crystallization

    A water treatment process needs to recover both water and other useful products if the process is to be viewed as being financially and environmentally sustainable. Eutectic Freeze Crystallization (EFC) is one such sustainable water treatment process that is able to produce both pure ice (water) and pure salt(s) by operating at a specific temperature. The use of EFC for the treatment of water is ...


    By IWA Publishing

  • Case study - Metropolitan Water District of Southern California (MWD)

    Service: Electromagnetic Inspection Client: Metropolitan Water District of Southern California (MWD) Type of Pipeline: Transmission Mains Diameter: 42 to 201-inch Pipe Material: PCCP Length: 163 miles The Metropolitan Water District of Southern California (MWD) is a consortium of 26 cities and water districts that provide drinking water to nearly 17 million people in parts ...

  • Energy and exergy analysis of a novel multigeneration system producing cooling, heating, power and pure water

    A novel multi–generation system producing power, pure water, cooling and heating is proposed and analysed in detail. The system comprises a hybrid generator-absorber heat exchanger (GAX), the Organic Rankine Cycle (ORC), the absorption heat transformer (AHT) and a desalination system. For comparison purposes, three working fluids, including R123, Isopentane and n–butane are considered in the ORC. ...


    By Inderscience Publishers

  • Webinar Highlights: Advanced Techniques in Peptide Isolation

    Hello, I’m Andy Aubin, Principal Consulting Chemist at Waters.  Jo-Ann Jablonski, Principal Scientist at Waters, and I recently conducted a webinar that addressed some techniques to make peptide purifications more efficient. We discussed three techniques: Focusing the gradient At-column dilution Temperature control These techniques are easy to ...


    By Waters Corporation

  • Ping-ping, what’s that sound? Acoustic fiber optic technology helps identify problematic water mains

    With the deteriorating state of many aging water mains found in cities across North America, urbanites are frequently witnessing unexpected plumes of water erupt as man-made geysers in their own metropolitan backyards. While natural geysers are awe inspiring, urban geysers are much less so, due to their destruction to property, roads and the environment. Because an uninterrupted water flow is the ...

  • Liqui-Cel® membrane contactors can help meet pure steam requirements in pharmaceutical industry

    Pure SteamPure steam is used in sterilization chambers as a common method to sterilize pharmaceutical products, such as equipment parts, instruments, containers and materials for sterile environments. Although regional Pharmacopeias in Europe, Canada, Japan, India and China have minor differences in limits and measurement techniques, they each have similar specifications on pure steam ...

  • Efficacy of vacuum ultraviolet photolysis for bromate and chlorate removal

    We introduce vacuum ultraviolet (VUV) photolysis at 172 nm as a more efficient process for bromate and chlorate removal than conventional ultraviolet (UV) photolysis at 254 nm. We discuss the effects of pH and coexisting salts on VUV photolysis. In experiments at various pH levels, the VUV photolysis performance decreased in the alkaline region for pH above 7. Furthermore, nitrate and inorganic ...


    By IWA Publishing

  • Influence of membrane properties on physically reversible and irreversible fouling in membrane bioreactors

    This study aimed to examine the impact of membrane properties on membrane fouling in membrane bioreactor (MBR). Membrane fouling was divided into two categories: physically reversible and irreversible fouling. Membrane properties related to each type of membrane fouling were investigated separately. Five microfiltration (MF) and one ultrafiltration (UF) membranes with different properties (pore ...


    By IWA Publishing

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