Filter Monitoring Articles

  • How do I choose audit filters for my opacity monitor?

    Ongoing quality assurance is important for any piece of measuring equipment. From a voltmeter to a spectrophotometer, calibration checks are needed to demonstrate that it is continuing to function within its design specification. An opacity monitor is no different, and the usual method for verification is to perform a calibration error check using traceable audit filters. These are neutral ...


    By AMETEK Land

  • LNF particle count – How low can you go?

    Contamination control is an important aspect of oil condition monitoring for fluid power applications, and it’s important to be able to reliably report clean oil cleanliness levels - especially for larger particles. Large abrasive contamination will naturally occur in fewer quantities than the smaller particles in any ingress contamination distribution. At very low cleanliness levels (ISO ...


    By Spectro Scientific

  • Filter damage monitoring with Dusty Ex - Case Study

    Application A chemical manufacturer producing photoinitiators. Photoinitiators are chemical compounds, which disintegrate after the absorption of light in a photolytic reaction. They produce reactive compounds, which are able to initiate a chemical reaction (for example a polymerisation). In praxis these initiators are used to harden lacquers and paints under the infl uence of ...


    By ENVEA

  • Dust monitoring with AirSafe - Case Study

    Application A waste incineration plant burns waste. A fi nal product of this incineration process is fi lter dust, which is stored in silos before being evacuated. For the ambient air monitoring of the silos, convey lines and connected rooms, the plant manager looked for a maintenance-free way to detect dust leaks and malfunctions. Optical techniques were not ...


    By ENVEA

  • Real-Time Surrogate Monitoring of Groundwater Pollutants at Oil and Gas Production Sites

    Using surrogates to monitor groundwater quality in real time The development of oil and gas resources, especially by hydraulic fracturing, has increased concerns about potential groundwater contamination (Figure 1).Typically, grab sample collection and expensive analytical tests are required to determine whether or not groundwater quality has been compromised.Time-consuming analytical ...


    By In-Situ, Inc.

  • RO Membrane Cleaning - explaining the science behind the art

    Introduction Reverse Osmosis membrane cleaning is essential for efficient plant operation and yet there has been very little innovation or development in over 30 years. This paper reviews best practice on reverse osmosis (RO) membrane cleaning. It challenges preconceptions and describes novel approaches for the removal of foulants and scale deposits from membrane surfaces. ...

  • Woolsey Fire: Are You Breathing Toxic And Radioactive Air?

    Preliminary Independent Radiation Test Results from US Nuclear Corporation from The Woolsey Fire and Santa Susana Field Lab Site ...


    By US Nuclear Corporation

  • AMC-Monitor T-1000: all-in-one analyzer for the semiconductor industry

    Real-time VOC monitoring in FOUP, fab and the clean-room environment Airborne Molecular Contamination (AMC) is more and more taking center stage in today’s semiconductor manufacturing processes. In the past the focus was on filtering particles from the ambient air in the ...


    By Ionicon Analytik Ges.m.b.H.

  • PT Global’s transmitters — More than meets the eye

    PT Global offer a considerable range of transmitters and conditioners in both analogue and digital formats. ...


    By PT Limited

  • Application of ferrates for Arsenic removal from groundwater

    Ferrates are a general name for compounds of iron in a high oxidation state - Fe(IV), Fe(V) and Fe(VI), which show highly oxidizing effects and form non-toxic ferrous oxides and oxohydroxides that can act as coagulants. Laboratory tests have confirmed an interesting application potential for these compounds in the area of water treatment technologies. In 2014 an affordable technology for ...


    By NANO IRON s.r.o.

  • Why Use Purge Air? And What Practicalities to Consider.

    Many AMETEK Land instruments use purge air, in the post I am going to explain the purpose and some of the practicalities surrounding this technology. In general, purge air is used on optical instruments such as emissions monitors and ...


    By AMETEK Land

  • Why use purge air? And what practicalities to consider.

    Many AMETEK Land instruments use purge air, in the post I am going to explain the purpose and some of the practicalities surrounding this technology. In general, purge air is used on optical instruments such as emissions monitors and ...


    By AMETEK Land

  • Diesel Particulate Filter Testing with Vehicle Data Acquisition

    Delphin Expert Logger Vehicle Data Acquisition and Control System CAS DataLoggers recently provided the vehicle data acquisition solution for Twin-Tec, a German developer and manufacturer of environmentally friendly products and technologies for reducing exhaust emissions, including a wide range of diesel particulate ...


    By CAS DataLoggers

  • Youssifiyah WTP Project- Iraq - Case Study

    Customer: VA TECH WABAG (Germany) Project Name: Youssifiyah Project Manufacturing year: 2002 Scope of supply 4 pcs. of Sand Filter Tanks, Ø 4000 x 4600 mm, 6 bar test pressure 2 pcs. of Mixed Bed ...


    By ASTIM A.S.

  • Measurement of trace metals in ambient air: Validation of a rapid technique with gold standard ICP-AES

    Trace metals are found at low concentration in the ambient environment and are associated with adverse health effects. The gold standard metal measurement is Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES); however, sample preparation is laborious and expensive. The Xact 625 metals monitor uses non-destructive X-ray fluorescence technology. A built-in sample collection ...

  • Reducing Downtime for a Consumer Electronics Manufacturer

    Matrix® AP Harmonic Filters provided the necessary solution for reducing harmonics to stablize operations and increase efficiency. Good quality power can make a significant difference for many manufacturing plants such as those that build consumer electronics. Variable Frequency Drives (VFDs) are often used to control the water and ventilation systems for these ...


    By MTE Corporation

  • Oil Analysis for Hydraulic Systems

    Hydraulic systems are used in industrial, mobile and aviation applications to transmit power to operate equipment. They are incredibly efficient, compact, and lightweight relative to a mechanical equivalent. Hydraulic fluids transmit force in the system, and as such are carefully chosen by the system maker. Chemical stability, high flash and fire points, viscosity, and oxidation resistance are ...


    By Spectro Scientific

  • Test of precoat filtration technology for treatment of swimming pool water

    The technical performance of a precoat filter was compared with that of a traditional sand filter. Particle concentration and size distribution were measured before and after the filtration of swimming pool water. Both the sand and precoat filters could reduce the particle concentration in the effluent. However, higher particle removal efficiency was generally observed for the precoat filter, ...


    By IWA Publishing

  • Pilot study of oilfield wastewater treatment by micro-flocculation filtration process

    In order to meet the latest Environmental Protection Law of China on wastewater discharge standards, this paper studied a pilot-scale micro-flocculation filtration pretreatment process for the treatment of oilfield wastewater. The experiment showed that the removal rate of oil and suspended solids (SS) respectively increased from 91.52% to 95.38% and from 66.42% to 97.19%. After the treatment ...


    By IWA Publishing

  • Effectiveness of silver and copper infused ceramic drinking water filters in reducing microbiological contaminants

    A series of bench-scale experiments were conducted on ceramic filters with various amounts of silver and/or copper nanoparticles fired-in during the manufacturing process. The experiments were designed to determine the efficacy of the filters on the removal of pathogens from drinking water. Escherichia coli and MS2 were employed as non-pathogenic surrogates for pathogenic organisms. ...


    By IWA Publishing

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