volatile organic compounds monitoring Articles

  • Introduction and Price of Explosion-proof Ceiling Fan

    Explosion proof ceiling fan The ceiling fan is divided into industrial ceiling fan and decorative ceiling fan (called ceiling fan lamp abroad). Most of the domestic families and factories use industrial ceiling fan. Industrial ceiling fans play a major role in China. The main sizes are 1050mm, 1200mm and 1400mm (900mm and 1500mm ceiling fans are seldom seen in the domestic market). Decorative ...

  • Stevens Water Acquires Structure Monitoring, Inc.

    Stevens Water Monitoring Systems Inc. is proud to announce the completion of the acquisition of Structure Monitoring Inc.Also based in Portland, Oregon, Structural Monitoring Inc. (SMI) provides intelligent IoT (Internet of Things) solutions for monitoring, analyzing, and managing critical infrastructure with emphasis on hydropower, bridges, and transportation applications.Stevens and SMI share a ...

  • The Application of the Industrial Chiller

    The cooling characteristics of industrial water chillers and the application of cooling characteristics of industrial water chillers appears with the rapid development of the modern industrial technology. In order to improve production efficiency, improve product quality and reduce production costs, the requirement of temperature control in production process is becoming more and more strict. ...

  • How much does it cost to build a sand and grave plant?

    To answer this question, we need to determine the following factors. The type and size of the sandstone plant determines its investment amount. How much is the processing capacity? The investment in sand and grave washing plant of different production scales varies greatly.  What is the ...

  • Researchers are Advancing Science Using Micro Pulse LiDAR Technology

    There are so many examples of interesting research using Micro Pulse LiDAR (MPL) technology it is difficult to decide on my favorites; however, I have chosen to highlight the following two papers because these applications for the MPL and MiniMPL address problems that are very important to global health. ...

  • 7 Disadvantages of Implementing an Activated Sludge Process For Your Municipality or Company

    Biological treatment processes are an important component in many wastewater treatment systems. They are one of the most efficient and effective ways of reducing organic material in wastewater. There are quite a few of them that have been researched and used over several decades. However, one of the most widely used conventional biological treatment process is the activated sludge process (ASP). ...

  • Mining Emissions Effectively Monitored with Micro Pulse LiDAR Technology

    Mining operations include blasting, excavating, scraping, and sifting large amounts of dirt. These activities create dust and other emissions that are transported by air currents to surrounding areas. It is easy to say that dangerous particulate matter (PM) generated by mining should be monitored and kept to a minimum; however, it is very challenging to measure the levels of contaminants in the ...

  • Adsorbent Trap for GC Analyses of Volatile Organic Compounds in Wastewater

    Adsorbents used in VOCARB purge traps offer superior adsorption/desorption characteristics, thermal stability, and hydrophobicity for monitoring volatile organic compounds (VOCs) in water. Response factors for compounds listed in US EPA Method 624 show that VOCARB 3000 traps meet the performance requirement for Methods 624/1624.           ...


    By MilliporeSigma

  • CBRN Water Monitors

    WANTED: CBRN (Chemical, Biological, Radiological, Nuclear) Water Monitors ...


    By US Nuclear Corporation

  • Detection of volatile organic compounds in waste water

    A standard Hiden HPR-40 has been used for the detection of VOCs (volatile organic compounds) in water. This forms an important monitoring procedure for any installation that uses or produces such compounds and performs testing to help ensure that they do not impact on the environment. Such testing often forms mandatory government legislation for businesses. The data show the detection limits and ...


    By Hiden Analytical Ltd.

  • Alternative Fuels - A Look At the Current Environment

    Overview Vehicles powered by gasoline and diesel account for emissions of dangerous air pollutants and contribute to the presence of greenhouse gases. Consumers, businesses, and public entities looking for environmentally friendly alternatives to gasoline and diesel-powered cars and trucks have viable choices beyond the well-known battery electric and plug-in hybrid electric ...

  • Mississauga Case Study (In Situ Gas Thermal Remediation (GTR™))

    In Situ Thermal Desorption in conjunction with soil vapor extraction was used to remove volatile organic compounds which contaminated the groundwater and saturated soil areas of a former metal fabricating facility in Ontario, Canada. The site had VOCs detected above the Canadian water standard in various monitoring well locations.  The remediation goal was achieved in 84 days and saw a 98% ...

  • Improved Purge-Trap/GC Analysis of Volatiles in Drinking Water by US EPA Method 524.2

    The VOCARB 3000 adsorbent trap is suitable for monitoring volatile organic compounds in drinking water samples, as well as in wastewater and hazardous waste samples.  This adsorbent trap meets the requirements of US EPA Methods 502 and 524.2.  Relative standard deviation values were less than 15% for all of the compounds listed, and less than 7% for most of the compounds.  Recovery ...


    By MilliporeSigma

  • News on Air 2013: Special Edition for Petrochemical Industry

    This volume features Air Monitoring products that are used the petrochemical industry to ensure worker and community safety.  Supelco's air monitoring products are useful for sampling of indoor (workplace) air and ambient air for a wide variety of analytes, such as aldehydes, volatile organic chemicals (VOC), benzene, toluene, ethyl benzene and xylene (BTEX) and other polyaromatic compounds ...


    By MilliporeSigma

  • Top 5 Differences between Micro Pulse LiDAR and Ceilometer Technology

    If you are evaluating backscatter LiDAR sensors for measuring aerosols, cloud vertical structure, and planetary boundary layer (PBL) heights, what factors should you consider in your comparison? It really comes down to a choice between the traditional analog technology used in ceilometers and the more recent advanced technology found in Micro Pulse LiDAR (MPL) sensors. ...

  • Groundwater Remediation at Low Flow/Low Permeability Sites using HRC

    Rocky Flats Environmental Technology Site (RFETS) is located near Golden, Colorado. A groundwater plume of tetrachlorethene (PCE) and other volatile organic compounds (VOCs) developed at the PU&D Yard site as a result of prior spills at this location. A treatability study evaluated the effectiveness of the Hydrogen Release Compound (HRC®) in low-flow groundwater regimes. HRC is a proprietary, ...


    By Regenesis

  • ITRC position paper for passive diffusion sampling, 2002

    This document is intended to facilitate the use of polyethylene diffusion bag (PDB) samplers for long-term monitoring (LTM). The guidelines presented in Sections 2 and 3 relate to appropriate implementation, data interpretation, and regulatory issues of concern. Although diffusion samplers can be useful for many different activities and have membranes composed of various materials, this ...


    By EON Products Inc.

  • Dirty Work Made Clean: Volatile Organic Compound Recordkeeping

    Picture this scenario: three facilities - two operating under Title V that are major sources of NOx emissions; situated in the second most populated urban area in the United States and one of the smoggiest; heavily regulated by state air quality control agencies; having to comply with stringent monitoring of gases and chemicals on a daily basis; tracking all environmental data in a dated and ...


    By Enviance, Inc.

  • Potential use of Syntrichia ruralis for monitoring atmospheric BTEX

    Many studies deal with the bioaccumulation of metals in mosses. In contrast, the knowledge about organic pollutants is less extensive and there is a relative lack of studies using plants for the biomonitoring of volatile organic compounds such as Benzene, Toluene, Ethylbenzene and Xylenes (BTEX). Both in situ and in controlled conditions, this study deals with the capacity of mosses to accumulate ...


    By Inderscience Publishers

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