micro media filter Articles

  • What can I use to filter my mobile phase?

    If you are using mobile phase that contains salts or, generally, any components that are weighed out for its preparation, you will need to filter the solution before using with HPLC or UHPLC. The most common type of filtration is membrane microfiltration. We sell an extensive group of products for this and they are discussed very well in a blog ...


    By Restek Corporation

  • Performance Testing of Micro Media and Conventional Filters operating on Heavy Oil Produced Water in the San Joaquin Valley (California)

    "Performance Testing of Micro Media and Conventional Filters operating on Heavy Oil Produced Water in the San Joaquin Valley (California)", an application note, was presented by Michael Dejak and Michael Sheedy at the 23rd Annual Produced Water Society Seminar taking place in Houston, TX, this past January. The Produced Water Society Seminar is held every year. Each seminar emphasizes the latest ...

  • Treatment on low carbon-to-nitrogen micro-polluted water by layered biological aerated filter with floating and sunken media

    In order to improve the TN removal efficiency on low carbon-to-nitrogen micro-polluted water, in this study, a layered biological aerated filter (L-BAF) was built. The results showed that the removal efficiency for CODMn, NH3-N, and TN was 71.6–90.3%, 99.8–99.9%, and 57.8–65.7%, respectively, when the C/N ratio was kept at 3 and the volumetric ...


    By IWA Publishing

  • Increased water treatment plant capacity at a Mexican power station using Micro Media Filters ahead of RO and Replacing EDI with ion exchange

    Abstract: This paper describes the process and equipment used to treat a Mexican secondary water source in order to supply boiler feed make-up to a combined cycle power plant. RO pretreatment is provided by a highly efficient micro media filter that produces a filtrate with a turbidity of 0.1 – 0.2 NTU and an SDI value of 3 – 5. Following the RO, a compressed-bed ion exchange system ...


    By Eco-Tec Inc.

  • Control of Welding Fume Particulates Using Cleanable Filter Media: Hexavalent Chromium

    Herein, a Sentry Air Systems product study of hexavalent chromium particles, [Cr(VI)], is reported. Due to the popularity of extended life cleanable filter media and health concerns regarding hexavalent chromium exposure in the work place, Sentry Air Systems conducted a study of the efficacy of cleanable filter systems for the maintenance of safe breathing conditions during welding operations ...


    By Sentry Air Systems, Inc.

  • Deposition of carbon nanotubes in commonly used sample filter media

    There is no single standard technique or methodology to characterize the size, structure, number, and chemical composition of airborne carbon nanotubes.  Existing analytical instruments and analytical techniques for evaluating nanoparticle concentrations cannot simultaneously provide morphology, state of agglomeration, surface area, mass, size distribution and chemical composition data ...


    By GJESM Journal

  • Experimental study on non-woven filamentous fibre micro-filter with high filtration speed

    A laboratory study was undertaken to pursue the filter performance of a micro-filter module employing highly porous fibre media under a high filtration rate (≥1,500 m/day), faster than that of any conventional filter process. The effects of filtration rate, head loss, raw water turbidity, and filter aid chemicals on filter performance were analysed. In spite of the extremely high ...


    By IWA Publishing

  • High performance microbiological filter

    Filtration processes are a large cost component of pharmaceutical manufacture. The particle retention efficiency, particle capacity of the filter and the liquid flux all impact on product cost. A non woven electropositive filler media has been developed whose active component is an alumina (AlOOH) fiber two nanometers in diameter and having a surface area of 350-500 m7g. The nano fibers are ...


    By Argonide Corporation

  • Biological trickling filters - New Zealand

    The Client VWS UK is involved in a unique project in New Zealand for a new Wastewater treatment plant in Hastings. The Client's Needs In New Zealand the Maori people have a strong influence over any decision affecting the land. Maori are deeply offended by discharge of human wastes, particularly to natural waters and also land.Historically, in Maori ...


  • Why choose an electrostatic, washable air filter?

    When deciding what type of air conditioner or furnace filter to use, you should keep two things in mind: Airflow and Efficiency. In order to work at its optimum level, the a/c or heating unit requires no restriction to air flow. You should choose a filter that has the least effect on airflow, but removes the most dust from the air. ACI’s electrostatic air filters allow the air conditioning ...


    By ACI Manufacturing

  • The Next-Generation Water Filter for the Oil and Gas Industry

    Many segments of the oil and gas production industry need improvements in water filtration over traditional methods. This is true because of the trend toward oil and gas production in tighter, less permeable reservoirs and the greater use of enhanced oil recovery (EOR) techniques, many of which involve injecting water into the oil reservoir. To protect the integrity of such reservoirs, the amount ...


    By Eco-Tec Inc.

  • What is slip-flow and how does it affect filter performance?

    Recent scientific interest in nanofibers have many people exploring their use in filter media.  One of the advantages of nanofibers for gas phase depth filtration is the slip-flow phenomena.  The purpose of this article is to describe what is meant by the slip-flow phenomena and how it applies to filtration. Suppose you have a hypothetical camera that can take an instant snapshot of the ...

  • Outsourced Water Treatment Plant for Boiler Make-Up Water

    Abstract: An outsourced Water Treatment Plant featuring down flow micro media filters, reverse osmosis units and short bed demineralizers designed to produce 66 l/s of makeup water for eight (8) functioning reactor-turbine units has been running for almost 4 years. Individual equipment and overall plant performance is assessed and plant optimization ...


    By Eco-Tec Inc.

  • Cooling tower case study

    Cooling towers have always been difficult to control. Algae grow in the cooling tower itself and on the grids used. In addition to micro-organisms and biofilm, they reduce the efficiency of the cooling tower. Furthermore the risk of spreading Legionella is a serous factor to be reckoned with. Many of the traditional methods to fight algae are either insufficient, cumbersome, environmentally ...


    By LG Sonic

  • Self-Cleaning Filtration for Pretreatment of Membrane, UV and Ozone Water Treatment Systems

    Recent field data has shown the effectiveness of automatic self-cleaning filters in removing suspended solids down to less than 3 microns in size without flocculents, pre-coats or granulated media. Pre-treatment of ozone systems is often needed to remove organic solids that would utilize high amounts of ozone during oxidation leaving little for complete disinfection. Selfcleaning screen filters ...

  • Update on Mt Pleasant WTP Incorporating the MIEX ® DOC Process and How it Compares With a Plant Operating in Enhanced Coagulation Mode

    Natural organic matter (NOM) is a major factor impacting on water treatment processes. NOM is a precursor of disinfectant by-products (DBP), a food source for regrowth of micro-organisms and makes downstream processes such as membrane filtration and activated carbon less efficient. Reducing NOM in conventional treatment plants can be achieved by using enhanced coagulation, whereby additional ...


    By IXOM Watercare

  • The next generation biological odour control systems

    Odour is usually caused by the presence of hydrogen sulphide, mercaptans (Organic sulphur components) and ammonia, but also multiple other VOC’s (volatile organic compounds) bringing numerous odour complaints at e.g. WWTP’s, pumping stations and composting plants. An odour control system therefore will have to treat not only hydrogen sulphide, but also other pollutants to reduce the total ...

  • Oil refinery reduces energy consumption with a Culligan Solution

    Challenge A major petroleum refinery was looking to replace a hot lime softener. Naturally occurring minerals such as Calcium, Magnesium and Silica can cause scale in steam boilers and other types of equipment used in refinery operations. Scale deposits in steam boilers con reduce equipment efficiency and increase energy, chemical, disposal and maintenance costs. Hot lime softening is a ...


    By Culligan Matrix Solutions

  • State of the art treatment for Arsenic, color, and Hydrogen Sulfide - Case Study

    New Arsenic Regulations How meaningful to the average water customer are µg/l or parts per billion? Not very. How about the word “arsenic”? That will ring some bells as the mystery novel poison-of-choice. But with new, lower EPA arsenic standard of 10 ppb that went into effect Jan. 16, cities with ...


    By Filtronics, Inc.

  • Pharmaceutical: a Practical Approach to Controlling Microbial Growth in USP

    The control of microbial growth in systems for producing United States Pharmacopeia (USP) Purified Water is of critical importance to pharmaceutical manufacturers. It is also of critical importance to the United States Pharmacopeial Convention Inc. (USP) organization, as evidenced by the sheer number of pages dedicated to the control of micro-organisms in the proposed USP 23 General Information ...

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