particle sizing Articles

  • The Language of Particle Size

    Most practitioners in the pharmaceutical, mining, environmental, paints and coatings, and other fields have reason to know the sizes of particles in a given powder or slurry sample. While many technologies exist to describe that collection of sizes, the reports delivered by those technologies are written in their own vocabulary. This particle size lexicon can convey a tremendous amount of ...


    By Particle Technology Labs

  • Particle Dispersion for Size Analysis

    Panicle size analysis is a vital analytical tool in the pharmaceutical industry. The results can be used to meet safety and quality specifications and provide information for product development and manufacturing. Modern techniques have made determining the particle size of a material quick and convenient, but many factors can influence the quality of data obtained. While particle size analysis ...


    By Particle Technology Labs

  • Particle Size Reduction Strategies

    Grinding strategies are driven by business priorities, feedstock types and quantities, compost mix ratios, product markets, sales seasonality and the weather. Particle size reduction is an important organic materials handling step that enhances the biological or chemical process by optimizing the particle surface area-to-volume ratio. Grinders, shredders and chippers are used for size ...


    By BioCycle Magazine

  • A Comparison of Methods to Determine the Particle Size

    There currently exist a multitude of techniques to determine particle size distributions. However, in assessing the particle size distribution (PSD) of solids in a stormwater sample, the number of suitable techniques is considerably reduced due to the limited quantity of solids in a typical stormwater sample. The electrical sensing zone method (ESZ), which utilizes the Coulter Principle, and ...


  • Sizes of particles formed during municipal wastewater treatment

    Volumetric diameters Dv and specific surface area SpS of sludge particles formed during chemical coagulation and electrocoagulation of sewage were determined. The obtained aggregate-flocs differed substantially in both Dv and SpS values. The differences in Dv and SpS values of the analyzed particles were ...


    By IWA Publishing

  • Problems in Particle Size: Laser Diffraction Observations

    The results obtained by a particle size analysis can easily be taken for granted. If the particle size distribution of a material must be quantified and reported, it is important that the full implications of the analytical technique and generated data are investigated and understood. While complying with designated testing methods and procedures is of great importance in a quality assurance ...


    By Particle Technology Labs

  • An overview of micron-ranged particle sizing techniques

    Given the wide range of particle sizing technologies and instrumentation on the market, the choice of measurement technique can be daunting, especially if one is unfamiliar with the options available. Once introduced and familiar with an individual technique, it can be easy to continue to choose it by default. While this is certainly understandable, it may prove a disservice when the technique is ...


    By Particle Technology Labs

  • What is the size distribution and sources of particles in ambient air?

    The particle sizes in the ambient air are ranged from 1 nanometer to slightly more than 10 micrometers. There are three modes: coarse, fine and nano. The course mode particles are road dusts, spores and pollens. The minimum sizes of these particles are 1 to 3 micrometers. The fine mode particles are generally secondary particles formed from reactions such as smoke, sulfates, nitrates, ammonium ...

  • 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 ...


    By Sterlitech Corporation

  • `Standards are desperately needed for plastic and pesticide contamination in soil´

    In addition to plastic in the oceans, plastic contamination in arable land throughout Europe and other parts of the world is a growing problem. No standards exist for these types of soil pollutants, nor for pesticide residues or their degradation products. For this reason, Professor Violette Geissen is calling for standards to be implemented. On 15 June, Geissen will deliver her inaugural address ...

  • Innovative Project for Hydrocarbons Contamination

    Baioni Crushing Plants, leader in the aggregate crushing sector has been operating for 40 years, have recently developed equipment and methods for environmental control. Several plants have already been supplied to third parties, now Baioni have full know-how of the technology and can ensure correct conception of the line based on the specifications of the soil to reclaim and can provide ...


    By Baioni Crushing Plants Spa

  • A quick guide to oil analysis for engine test applications

    Reliability testing is a very important component of new engine development. Engineers need to fully understand and chart the engine lifetime performance under a variety of conditions before mass production may be considered. Many important performance data parameters are collected in real time through the many different types of sensors that are connected to the engine in the test cell and oil ...


    By Spectro Scientific

  • Effect of primary particle size on colloidal stability of multiwall carbon nanotubes

    Multiwall carbon nanotubes (MWCNTs) are one type of nanoparticles that have various special properties and potential applications. Due to their increasing production and potential toxicological effects, the environmental behavior and transport of MWCNTs have become important research topics. Particle size is one of the important properties of nanoparticles, yet its effects on MWCNT environmental ...


    By IWA Publishing

  • Sorption of pyrene on two paddy soils and their particle-size fractions

    In the present study, the sorption of pyrene on two kinds of bulk paddy soils, Gleyic Stagnic Anthrosols, and Ferric accumulic Stagnic Anthrosols as well as their particle-size fractions was investigated. The sorption isotherms fitted well with Freundlich equation. For both soils, the clay fraction (<2µm) and coarse sand fraction (2000-250µm) had higher sorption capacity than fine sand ...


    By IOS Press

  • Sampling, testing and modeling particle size distribution in urban catch basins

    The study analyzed the particle size distribution of particulate matter (PM) retained in two catch basins located, respectively, near a parking lot and a traffic intersection with common high levels of traffic activity. Also, the treatment performance of a filter medium was evaluated by laboratory testing. The experimental treatment results and the field data were then used as inputs to a ...


    By IWA Publishing

  • On PM 2.5 Filters, Let’s just clear the air between us; ok?

    In the area of a former military building complex in the Chaoyang District of Beijing is a unique and thriving artistic community.  In the middle of this art district, is a strange 7-meter tall tower shaped like an avant-garde metallic pineapple.  Designed by Dutch artist Daan Roosegaarde, it is both an artistic creation and a functional tool meant to test a possible solution for ...


    By Sterlitech Corporation

  • Size distribution of the secondary organic aerosol particles from the photooxidation of toluene

    In a smog chamber, the photooxidation of toluene was initiated by hydroxyl radical (OH·) under different experimental conditions. The size distribution of secondary organic aerosol (SOA) particles from the above reaction was measured using aerodynamic particle sizer spectrometer. It was found from our experimental results that the number of SOA particles increased with increasing the ...


    By IOS Press

  • Impact of particle size and light exposure on the effects of TiO2 nanoparticles on Caenorhabditis elegans

    The increasing use of engineered nanoparticles in industrial and consumer products leads to a release of the anthropogenic contaminants to the aquatic environment. To obtain a better understanding of the environmental effects of these particles, the nematode Caenorhabditis elegans was used to investigate the organism‐level effects and in vivo molecular responses. Toxicity of bulk‐scale (~160 ...


    By John Wiley & Sons, Ltd.

  • Particle size distribution and dissolution properties of metals in cyclone fly ash

    The particles in the examined cyclone fly ash were all smaller than 0.25 mm. in diameter, and particles smaller than 0.075 mm. in diameter accounted for 88.4 % of the ash weight. This result indicates that cyclone fly ash consists of particles with a small diameter. The metals in the cyclone fly ash were enriched in small ...

  • Comparison of digital and manual methods of snow particle size estimation

    Maintaining long time series of observations of the Cryosphere is a key issue in climate research. Long observational time series involve problems due to change in methodology or observers. In order to extend time series and introduce new methods, careful comparisons must be made to ensure homogeneity in the observational data. We have compared an established method for snow grain-size ...


    By IWA Publishing

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