particle sampling Articles
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Two innovative devices for depth sampling in granular filtration systems. Desalination 286: 115–119, 2012.
Appropriate devices for obtaining either interstitial water or grain particle samples or for measuring dissolved oxygen (DO) at depth within the interior of large-scale, industrial granular bed filters are currently lacking. We developed two innovative samplers for studying a Rapid Sand Filter (RSF) at an operational SWRO plant: the first for water and granular material, the second for DO ...
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Dyed viruses and metal particles for advanced separation studies
Single nanometer sized particles are poorly retained by conventional water treatment methods and are hardly detectable in water samples. The particles present a separate class of pollutants and their transport and fate cannot be studied by tracking bacteria, turbidity, free dyes or ions. Dyed bacteriophages and gold nanoparticles are two novel tools that facilitate the studies of virus ...
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Utility of the laser particle counter for determination of drinking-water toxicity
Particle toxicity in various water samples depends on the mixture of toxicants in each sample. Toxicity values for different samples can be expressed using the new metric: Particle Toxicity. Use of the Spectrex PC-2000 was the instrument of choice in enumerating the particle concentrations for the calculation of the particle toxicity of drinking-water and reference toxicant suspensions. ...
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One-year monthly survey of rotavirus, astrovirus and norovirus in three sewage treatment plants (STPs) in Beijing, China and associated health risk assessment
To evaluate the presence and distribution of the three main viruses (rotavirus, astrovirus, and norovirus) responsible for human acute gastroenteritis in sewerage systems, a one-year study was carried out in Beijing, China. A total of 96 samples of influent and effluents from three sewage treatment plants (STPs) were collected from November 2006 to October 2007. Silica was used to concentrate ...
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Removal of ammonium ions by laboratory-synthesized zeolite linde type A adsorption from water samples affected by mining activities in Ghana
Ammonium ion adsorption by laboratory-synthesized zeolite (linde type A; LTA) was investigated in batch kinetics experiments. Synthesized zeolite LTA was characterized by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, thermogravimetric analysis, Fourier transform infrared spectroscopy and particle size analysis. Water samples were taken from the Nyam and ...
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When water suffers from high turbidity, Filtronics is the clear solution
Water loses its transparency and takes on a hazy appearance when it contains a large quantity of suspended solid particles. While even a moderate lack of clarity is noticeable to even casual observers, the average person would probably describe a sample of such water as “cloudy” or “murky.” The technical term – turbidity – is not widely known to laymen outside ...
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Corona 1010 for charged aerosol detection
Charged Aerosol Detection (CAD) is a detector with high sensitivity and good repeatability used to detect most non-volatile and semi-volatile organic compounds. Its uses cover a wide range of applications, including analysis of pharmaceutical ingredients, analysis of natural products, and analysis of sugars, proteins and surfactants. Nitrogen gas plays multiple roles of atomization, drying and ...
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Radionuclides in wastewater treatment plants: monitoring of Sicilian plants
Three Sicilian wastewater treatment plants were monitored to assess the occurrence and the behaviour of radionuclides. Two sampling campaigns (screening and long-term) were carried out during which liquid and solid samples have been analysed. It was found that 131I mostly occurred in the samples analysed during the screening campaign (43% of the analysed samples contained 131I). High ...
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Use of talc as low-cost clarifier for wastewater
Talc is proposed as a low-cost mineral for wastewater clarification. In this sense, adsorption of methylene blue (MB) from aqueous solutions was studied comparatively by using sepiolite (qualified as very good adsorbent) and two talc samples with different particle size and purity degree. The MB adsorption was assessed by determining remnant dye in the supernatant using UV–vis ...
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Groundwater Monitoring Water Solids Removal
Industrial Waste Water Treatment Success Stories Groundwater Monitoring Colloidal Solids Removal Effective Ground Water Solids Removal The ground water water samples contain colloidal particles (less than 5 micron) with at least 10% submicron in size. The water is from a ground water treatment system that is treating for perchlorate and Trichloroethylene (TCE). ...
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Groundwater Monitoring Colloidal Solids Removal
Industrial Waste Water Treatment Success Stories Groundwater Monitoring Colloidal Solids Removal Effective Ground Water Solids Removal The ground water water samples contain colloidal particles (less than 5 micron) with at least 10% submicron in size. The water is from a ground water treatment system that is treating for perchlorate and Trichloroethylene (TCE). ...
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Water turbidity detector introduction
Water turbidity detector Turbidity detector is an instrument used to measure the turbidity of water samples. It determines the turbidity of a water sample by measuring the degree of scattering of light through it. Turbidity detector is widely used in water treatment, environmental protection, health supervision and other fields.The working principle of the turbidity detector is based on the ...
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Long-term Atmospheric Mercury Wet Deposition at Underhill, Vermont
Section 112(m) of the 1990 Clean Air Act Amendments, referred to as the Great Waters Program, mandated an assessment of atmospheric deposition of hazardous air pollutants (HAPs) to Lake Champlain. Mercury (Hg) was listed as a priority HAP and has continued to be a high priority for a number of national and international programs. An assessment of the magnitude and seasonal variation of ...
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Microplastics Found in Human GI Tracts
In small study, plastic particles were found in bodies of all participants A recent study may have been small, but its results came as a big surprise to some. Lead author Dr. Phillip Schwabi of the Medical University of Vienna and Dr. Bettina Liebermann of Environment Agency Austria found microplastics particles in the GI tracts of every human participant in the study, which the researchers ...
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ECO Magazine featured TR80 Turbidity Analyzer
New Next-Gen Intelligent Optical Sensor Delivers Precise Turbidity Measurement Water treatment engineers tasked with assuring reliable potable water treatment from ground or surface sources and storage reservoirs as well as those responsible for suspended solids in municipal or industrial wastewater effluent will find the smart TR80 Turbidity Analyzer from Electro-Chemical Devices (ECD), offers ...
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Turbidity Meter Working Principle: Importance & Applications
Discover the fundamental working principle of turbidity meters, their significance in various industries, and how they measure the clarity of liquids. Explore the ins and outs of turbidity meters in this comprehensive article. Introduction Turbidity meters play a vital role in assessing the quality of liquids by measuring their clarity or cloudiness. These sophisticated devices are extensively ...
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