Particle Analysis System Articles on Environmental XPRT

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 ...

Jul. 2, 2013

By Particle Technology Labs

Automating oil particle analysis

Run up to 25 samples at one time The major issue for premature failure in wind turbine gearboxes is bearing failure, which leads to gearbox failure. A wind turbine gearbox will not survive if the oil is ...

Dec. 2, 2016

By Spectro Scientific

Single-particle analysis and electron tomography

Both single-particle analysis and electron tomography are special tools for the structural analysis of biological components by transmission electron microscopy. Single-particle analysis enables us to determine the structures of relatively large proteins and macromolecular complexes without crystallisation. Electron tomography is often used to visualise organelles and subcellular structures at ...

Oct. 23, 2006

By Inderscience Publishers

Guide to Measuring Particles in Oil

Particle counting is a critical aspect of any machine conditioning program and there are many tools out there available to monitor and track the quantity and severity of the contamination, be it due to external contamination or machine wear. The ...

May 3, 2016

By Spectro Scientific

Automated Oil Particle Analysis Helps Prevent Gearbox Failures

The major issue for premature failure in wind turbine gearboxes is bearing failure, which leads to gearbox failure. A wind turbine gearbox will not survive if the oil is not clean and especially if the hard ferrous particles are not removed from ...

Dec. 23, 2016

By Spectro Scientific

Particle removal in a novel sequential mechanical filter system loaded with blackwater

A novel sequential mechanical filter system was developed as an alternative primary treatment method for onsite wastewater treatment. The filter combines traditional screening with a novel type of counter-flow filter using wood-shavings as a biodegradable filter matrix. This study tested the system in a batch loading regime simulating high frequency toilet flushing using blackwater from a ...

May 7, 2015

By IWA Publishing

Observation based analysis for the determination of equilibrium time constant between ammonia, acid gases, and fine particles

Experimental measurements of ammonia, acid gases, and the inorganic components of atmospheric aerosols were made at a commercial hog farm in eastern North Carolina from May 1998 to June 1999 by an annular denuder system (ADS). The ADS consisted of a cyclone separator, one diffusion denuder coated with sodium carbonate, another diffusion denuder with citric acid, and a filter pack containing ...

Apr. 21, 2005

By Inderscience Publishers

Using sediment particle size class analysis to better understand urban land-use effects

Abstract A nested-scale experimental watershed study design was used to demonstrate rainfall-runoff and sediment particle size class variability in a representative urbanizing watershed in central Missouri USA. On average, sediment particle size classes were almost twice as large (2.0 to 500um size range) in headwaters, relative to an urban setting. Eighty percent of total sediment in ...

Oct. 20, 2015

By Sequoia Scientific, Inc.

An analysis of extinction coefficients of particles and water moisture in the stack after flue gas desulfurization at a coal-fired power plant

Two important factors that affect in-stack opacity—light extinction by emitted particles and that by water moisture after a flue gas desulfurization (FGD) unit—are investigated. The mass light extinction coefficients for particles and water moisture, kp and kw, respectively, were determined using the Lambert-Beer law of opacity with a nonlinear least-squares regression method. The ...

Aug. 1, 2011

By Air & Waste Management Association (A&WMA)

Granulometric Evaluation of Particle Size Using Suspension Pressure During Sedimentation

A new method, computerized granulometric analysis in suspension (C-GRAINS), is suggested for the sedimentation analysis of soil particles based on the relation between the specific weight and liquid pressure of a soil suspension. Theoretical aspects concerning this new testing method are discussed, and a prototype C-GRAINS system is fabricated accordingly. The general behavior of the new system ...

Mar. 1, 1995

By ASTM International

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 ...

Jan. 1, 2012

By IWA Publishing

Particle retention in compact constructed wetlands treating highway stormwater

Three pilot-scale compact constructed wetland systems were constructed to treat stormwater from a highway. They each comprised a sedimentation tank, and a vertical flow (VF) wetland bed equipped with a recirculation device. The VF wetland beds were filled with woodchip, pumice and volcanic gravel, respectively. According to the analysis of the particle size distributions (0.52–500 ...

Apr. 10, 2014

By IWA Publishing

A Lagrangian particle model with chemical reactions: application in real atmosphere

In this work, a Lagrangian particle model able to account for simple chemical reactions between NO and O3 has been improved to consider the photolysis of NO2. A system of chemical equations is numerically solved on a Eulerian grid, while the particle trajectories are moved in a Lagrangian frame. The ...

Jun. 18, 2012

By Inderscience Publishers

Flocculation performance of magnetic particles with high-turbidity surface water

The sharp increase in raw-water turbidity following heavy rain presents considerable treatment problems due to low sedimentation rates. The objective of this study was to evaluate the removal of negatively charged suspended solids (SS) in surface water treatment using magnetic particles (nFeO; FeO · Fe2O3) synthesised in our laboratory. The performance of nFeO in removing ...

Aug. 6, 2014

By IWA Publishing

Noncovalent immobilization of streptavidin on in vitro- and in vivo-biotinylated bacterial magnetic particles

Biotinylated magnetic nanoparticles were constructed by displaying biotin acceptor peptide (BAP) or biotin carboxyl carrier protein (BCCP) on the surface of bacterial magnetic particles (BacMPs) synthesized by Magnetospirillum magneticum AMB-1. BAP-displaying BacMPs (BAP-BacMPs) were extracted from bacterial cells and incubated with biotin and ...

Aug. 1, 2008

By American Society for Microbiology

Particle and Fibre Toxicology Publishes Article Concerning Workplace Exposure to CNTs

On October 21, 2013, Particle and Fibre Toxicology posted an article entitled “Carbon nanotube dosimetry: from workplace exposure assessment to inhalation toxicology.” The authors, who are affiliated with the National Institute for Occupational Safety and Health (NIOSH), note that there are currently no ...

Oct. 24, 2013

By Bergeson & Campbell, P.C.

$Simultaneous determination of PM fractions, particle number and particle size distribution in high time resolution applying one and the same optical measurement technique$

Simultaneous determination of PM fractions, particle number and particle size distribution in high time resolution applying one and the same optical measurement technique

Abstract The Fidas fine dust monitoring systems comprise an optical aerosol spectrometer, which is characterized by very good instrument characteristics, and utilize a sophisticated approach to convert the measured information on particle number and particle size into mass concentrations. As monitoring of PM requires reliable and quality-controlled performance of the measuring systems, ...

Dec. 6, 2016

By Palas GmbH

Compost Data Tracking And Analysis

From tip fee invoice tracking to process control to compost product sampling, information gathering, analysis and reporting are key to successful facility operations. COMPOSTING is a highly regulated component ...

Jul. 1, 2007

By BioCycle Magazine

A meteorological database for next-generation dispersion models, and a Lagrangian particle model based on kinematic simulation theory

The database system supports small to regional scale air pollution analysis and dispersion modelling. It provides a three-dimensional and time dependent description of relevant meteorological scalar and vector quantities, and also trajectories and meteorological input data for commonly used dispersion models for local and regional applications. The data are visualized on a standard PC with ...

Sep. 17, 2009

By Inderscience Publishers

Removal of manganese ions from synthetic groundwater by oxidation using KMnO4 and the characterization of produced MnO2 particles

The aim of this study is to investigate the conditions for the removal of manganese ions from synthetic groundwater by oxidation using KMnO4 to keep the concentration below the allowed level (0.05 mg/L). The process includes low-level aeration and addition of KMnO4 in a Jar test system with Mn2 + concentration of 0.50 mg/L, similar to that of natural groundwater in Taiwan. Different parameters ...

Oct. 1, 2010

By IWA Publishing

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