Particulate Monitoring Articles

  • Hurricane cyclones to reduce particulate matter from a biomass boiler at Amorim Cork Composites (54.000 m3 /h a 177ºC) - Case Study

    Foreword Advanced Cyclone Systems, S.A. (ACS) designed and supplied a Hurricane cyclone system for Amorim Cork Composites (ACC). ACC, based in Porto (Portugal), has grown to become the world’s largest producer and distributor of cork products. Apart from traditional bottle stoppers, the proverbial ”cork” so intimately associated with wine, the company has over the ...

  • Modelling both the continual erosion and regeneration of discolouration material in drinking water distribution systems

    The erosion of the cohesive layers of particulate matter that causes discolouration in water distribution system mains has previously been modelled using the Prediction of Discolouration in Distribution Systems (PODDS) model. When first proposed, PODDS featured an unvalidated means by which material regeneration on pipe walls could be simulated. Field and laboratory studies of material ...


    By IWA Publishing

  • Towards the simulation of size-resolved aerosol over Europe: model and observations

    Knowledge of the number density and size distribution of atmospheric aerosols in the submicron size range is essential for estimation of the aerosol radiative effects and the health impact of particles. Ultrafine particles (UFP), i.e. particles with diameters <100 nm, have received increased attention in recent years with improved possibilities of measuring them. UFP originate from nucleation, ...

  • Analyzing the spatial and temporal characteristics of membrane fouling

    Fouling characteristics of crossflow flat-sheet membranes for two Nanofiltration (NF), one Ultrafiltration (UF), and one Microfiltration (MF) membranes were analyzed using 12.5 parts per million (mg/L) FeCl3 solution and 350 mg/L copper nanofluid. FeCl3 solution represents dissolved contaminant whereas copper nanofluid simulates particulate contaminant. The spatial and temporal fouling ...


    By IWA Publishing

  • An experimental investigation of the performance and emissions characteristics of a direct injection compression ignition engine running with LPG

    Existing diesel engines are under stringent emission regulation particularly of smoke and particulate matter in their exhaust. The potential benefits of using liquefied petroleum gas (LPG) as an alternative fuel in diesel engines are both economical and environmental. In the present paper an experimental research was carried out on an I.C. engine laboratory single cylinder, four-stroke variable ...


    By Inderscience Publishers

  • Effects of silver nanoparticles on soil enzyme activities with and without added organic matter

    The effects of silver nanoparticles (AgNPs) on terrestrial ecosystems need to be better understood and assessed. Cationic silver (Ag+) has well‐documented toxicity against bacteria, but it is not clear what will be the effect of nanoscale Ag. In the present study, the potential effects of AgNPs were investigated in soils by measuring activity of the enzymes phosphomonoesterase, arylsulfatase, ...


    By John Wiley & Sons, Ltd.

  • Effect of different water conditions on dissolution of nanosilver

    This study evaluates the time-dependent dissolution of nanosilver (nAg) in common electrolytes and natural waters. nAg was synthesized via Tollens’ method using sodium citrate as stabilizer; its morphology, UV–Vis spectrum, and particle size were characterized. The dissolved silver was monitored over time using filtration, centrifugation, and inductively coupled plasma atomic ...


    By IWA Publishing

  • Uncoated and coated ZnO nanoparticles life cycle in synthetic seawater

    The increasing production of nanoparticles has raised strong concerns regarding their environmental release. In nanoparticles life cycle scenarios, marine systems constitute one of the main final compartments, and nanoparticles fate in these environments needs to be assessed. Here, dissolution kinetics of commercial uncoated and organic‐coated ZnO nanoparticles in synthetic seawater has been ...


    By John Wiley & Sons, Ltd.

  • Monitoring and Treatment of Selected Nanoparticles

    With their increasing use, nanoparticles will become concentrated in urban effluents in the future. Both adequate monitoring methods and water treatment technologies will be necessary to assess and avoid consumer exposure. This paper reports results in these two challenging areas for both organic and inorganic nanoparticles. Treatment experiments indicate that lamellar settling is better adapted ...


    By IWA Publishing

  • Winter time particulate matter concentrations at an urban roadway in India

    This paper presents analysis and interpretation of 1-hr average fine (PM 1 and PM 2.5 ) and coarse (PM 10 ) particulate matter (PM) concentrations measured during winter 2008 and 2009 at a roadside in Chennai city, India. Results showed typical weekly and diurnal cycles with high concentrations corresponding morning and evening peak traffic flows. The 24-hr average PM ...


    By Inderscience Publishers

  • Photoelectrocatalytic study and scaling up of titanium dioxide electrodes for wastewater treatment

    Different TiO2 photoelectrodes have been characterized and tested for the photoelectrocatalytic oxidation of methanol. Particulate electrodes (TiO2/Ti and TiO2/ITO) have been shown to notably favour charge-carrier transfer at the electrolyte interface while a thermal electrode (Ti) has been shown to favour charge-carrier separation when applying an electric potential bias ...


    By IWA Publishing

  • Distribution of pyrethroid insecticides in secondary wastewater effluent

    Although the freely dissolved form of hydrophobic organic chemicals may best predict aquatic toxicity, differentiating between dissolved and particle bound forms is challenging at environmentally relevant concentrations for compounds with low toxicity thresholds such as pyrethroid insecticides. We investigated the distribution of pyrethroids among three forms: freely dissolved, complexed with ...


    By John Wiley & Sons, Ltd.

  • Particle shape factors and their use in image analysis - part 1

    Fine panicles are often characterized by their particle size and distribution as determined by various analytical instruments. Particle shape may be just as important as particle size. Particle shape, however, is often ignored or disregarded. Image analysis is a technique capable of measuring particle shape factors and providing valuable information. These shape factors may dictate the behavior ...


    By Particle Technology Labs

  • The cheaper, safer and faster way to remove Asbestos is coming to the Netherlands

    When you think about asbestos removal, you may initially envision the experts dressed in full white suits, ready to take on the challenge of removing it safely. But when a company is in need of asbestos removal, the first thing they may think of is the heavy cost associated or length of time. Handling this issue is never a walk in the park for any company. However, cost and time burdens are about ...

  • The Master of Hydrant Flow Test Equipment

    Our range of hydrant flow test equipment offers many benefits that provide data that you can rely on. Here are 10 reasons why. 1. Record ...

  • Hurricane HR System to Reduce Particulate Matter from a Biomass Boiler Burning Pellets Under 50mg/Nm3 - Case Study

    Foreword Advanced Cyclone Systems, S.A. (ACS) designed and supplied a Hurricane Cyclone System for Norbidel, a Portuguese boiler manufacturer. End customer for boiler and Hurricane is Fepsa, a company that focuses its production on felts for hats. Its underlying processes involve compression and vibration, under the action of water and heat. Norbidel, based in Maia (Porto, Portugal) ...

  • PM2.5 Air Quality Modeling Updates

    There has been much activity over the past six (6) months that will impact how air quality modeling analyses will be conducted for Prevention of Significant Deterioration (PSD) permit applications with respect to particulate matter less than 2.5 microns (PM2.5).  As the resident air quality modeling expert at ALL4, I thought it ...


    By All4 Inc.

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