filter membrane Articles
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Cleaning Solutions for the Food Industry
International Products Corporation (IPC) offers a full line of free-rinsing precision concentrated cleaners that are effective in a wide range of critical cleaning applications. An economical 1-2% concentration in water is effective for most cleaning applications. Typical uses include removing protein, starch, grease, fat, gum, oil and baked on soil from processing equipment, lines, tanks and ...
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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 post written by one of my colleagues: ...
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News on Air 2013, Volume 4: Labware and Reagents
Welcome to volume 4 of our News on Air bulletin. This edition focusses on some of the labware and reagents that are used in this challenging area of analysis. Success in air monitoring quantitation requires that all the equipment and reagents used are inherently low in background concentrations, to prevent false positives. Commonly used materials may include: Filters, membranes, and ...
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Particle counting as a tool to predict filterability in membrane bioreactors activated sludge?
Activated sludge quality is one of the major factors influencing flux decline in membrane bioreactors (MBRs). Sludge filterability is a recognized parameter to characterize the physical properties of activated sludge. Decrease in filterability is linked to a higher number of submicron particles. In our present research we studied whether particle counting techniques can be used to indicate ...
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Effect of low dosages of powdered activated carbon on membrane bioreactor performance
Previous research has demonstrated that powdered activated carbon (PAC), when applied at very low dosages and long SRTs, reduces membrane fouling in membrane bioreactors (MBRs). This effect was related to the formation of stronger sludge flocs, which are less sensitive to shear. In this contribution the long-term effect of PAC addition was studied by running two parallel MBRs on sewage. To one of ...
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Food - Case Study
Challenge Increasing efficiency and prolonging durability of filter elements Highest possible equipment availability during the seasonal sugar campaign Solution Refitting with LENSER membrane filter elements with application-specific design Easier cleaning through smooth and dimensionally stable surfaces Optimisation of chamber volume and cake washing through external and corner feed ...
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Four Membrane Cleaning Profiles with Micro-90® Alkaline Cleaning Solution, Micro® Green Clean Biodegradable Cleaner and Micro® A07 Citric Acid Cleaner
SUMMARY Fouling and cleaning profiles of four types of filter membranes were obtained using MICRO-90®, MICRO® GREEN CLEAN and/or MICRO® A07. Simulated fouling processes were performed by using either a synthetic oil emulsion or a combination of the synthetic oil emulsion and a calcium acetate salt bridge mixture. Excellent recovery of permeate flux was obtained with the lowest to be ...
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Mining - Case Study
Challenge The mining of deposits with low material content requires ever more powerful equipment in order to come to grips with the mass throughputs. In order to reduce the cycle times, the ancillary times have to be minimised. Only through large filter elements with at least 10sqm filter areas can the necessary chamber volume be reached. At the same time, a long membrane service life is ...
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White Paper - Four Membrane Cleaning Profile
Four Membrane Cleaning Profiles With Micro-90® Alkaline Cleaning Solution, Micro® Green Clean Biodegradable Cleaner And Micro® A07 Citric Acid Cleaner SUMMARY Fouling and cleaning profiles of four types of filter membranes were obtained using MICRO-90®, MICRO® GREEN CLEAN and/or MICRO® A07. Simulated fouling processes were performed by using either a synthetic oil ...
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Defining Pore Size Through Bubble Point Test
Pore size rating is among the key selection criteria for membrane filters as it indicates the extent of particle size (including microorganisms) that can effectively be retained in a filtration application. With its importance, manufacturers are compelled to provide pore size ratings as accurately as possible. For such purpose, bacterial and particle challenge testing methods are used to ...
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Chemicals - Case Study
Challenge Long cake washing times and unsatisfactory results have a negative effect on the profitability of pigment production. Solution Development of membrane filter elements with customer-specific product design Targeted redesign and optimisation of filtration surfaces Modification of the filling channels and channel design in order to regulate the flow speed Configuration of filter ...
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Micro-90 Effective Filter Membrane Cleaner for Wastewater Treatment Operations
The care and cleaning of filter membranes is essential to the success of many water treatment systems. International Products Corporation (IPC) manufactures a line of membrane cleaners effective at restoring 100% flux at safe pH ranges. One of IPC’s customers treats industrial wastewater generated by the engine plant of a major automotive manufacturer. At this facility, up to 168,000 ...
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Green Roof
A green roof, or rooftop garden, is a vegetative layer grown on a rooftop (USEPA, 2010a). The main tasks of a green roof are retention of rainwater and increasing of evaporation. It can be distinguished between intensive and extensive green roofs. Extensive green roofs have thin layer of soil, the plants are draught tolerant and they require little maintenance. Intensive green roofs have a thick ...
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Development and validation of a FISH-based method for the detection and quantification of
E. coli and coliform bacteria in water samplesMonitoring of microbiological contaminants in water supplies requires fast and sensitive methods for the specific detection of indicator organisms or pathogens. We developed a protocol for the simultaneous detection of E. coli and coliform bacteria based on the Fluorescence in situ Hybridization (FISH) technology. This protocol consists of two approaches. The first allows the direct detection of ...
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Cytiva - Membrane filtration for water quality testing
Microbial quality of a product has the potential for immediate impact to the consumer. A reliable and versatile water testing method is a necessity to determine the safety for human contact, use, and consumption, and detect the presence of organisms that cause spoilage and reduced shelf life. Often the challenge in water quality testing involves concentrating enough of the target organism to ...
By Cytiva
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eDNA Article Update
In a recent article, we described how environmental DNA (eDNA) has been used to detect the presence of aquatic species in lakes and rivers. eDNA studies have demonstrated great potential for surveillance of rare, endangered, and invasive species by simply collecting and analyzing water samples from target habitats. Dr. Caren Goldberg, of Washington State University, is one researcher using a ...
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Factors that Affect the Performance of Reverse Osmosis Membrane Filters
Water treatment facilities worldwide use Reverse Osmosis (RO) to remove contaminants from municipal and private water supplies. While RO systems consist of multiple components, including pre-filters, UV sterilisation systems, pumps, flow meters, and interconnecting pipework, the decontamination process depends on membrane filters to remove contaminants. Membrane filters trap dissolved solids, ...
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Plate And Frame Filter Press | YASA ET
YASA ET industrial plate and frame filter press is a tool used in separation processes, specifically to separate solids and liquids. The machine stacks many filter elements and allows the filter to be easily opened to remove the filtered solids, and allows easy cleaning or replacement of the filter media. Filter presses cannot be operated in a continuous process but can offer very high ...
By YASA ET
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Focus on Microfiltration Part 3: Extending Service Life Using Prefiltration
Last month we examined filter selection strategies for maximizing service life in continuous use applications. In this 3rd installment, we will examine the use of prefilters to extend service life. Clarifying liquids with high levels of suspended solids is challenging, especially for applications requiring submicron filtration. In these applications, filter users who experience frustratingly ...
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Water aggressiveness and hydrodynamic effects on the fibres release in asbestos-cement pipes for public water supply
SEM and TEM analyses of drinking water samples, collected during three years (1988, 1989 and 1990) from some Asbestos-Cement (A/C) distribution systems in Veneto Region (Italy), have shown that the release of fibres, with length greater than 10 μm, is, on average, quite low. Moreover, the asbestos concentration is not strictly dependent on Aggressiveness Index (A.I.) in the range ...
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