Showing results for: volatile organic compound Articles
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The problem (and solution) of vent gases from hydrocarbon and chemical storage tanks
The problem (and solution) of vent gases from hydrocarbon and chemical storage tanks. During chemical products and hydrocarbon bulk liquid storage (the so-called tank breathing), product loading and unloading, transport, cleaning and inerting of tanks, pollutant emissions are emitted into the atmosphere. These emissions are mostly emissions of Volatile Organic Compounds (VOC) and must must be ...
By TECAM
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Meeting the Korean Method ES 04603.2b for 12 VOC with Static and Dynamic Headspace GC/MS
Introduction The Korean Standard Method for Drinking Water ES 04603.2b requires static headspace with GC/MS to monitor 12 Volatile Organic Compounds (VOCs). The Minimum Quantitation Limit (MQL) must be less than 5 ppb. The method requires the calibration curve to have a correlation coefficient greater than 0.98 or a Relative Standard Deviation (RSD) of the Response factors (Rf) less than 25%. ...
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Wisconsin web offset adds two presses, controls emissions with new oxidizer, cuts utility bills.
Wisconsin Web Offset, LLC (WWO) located in Brookfield, WI is an experienced heat-set and cold web commercial printer. WWO prints retail advertising inserts, catalogs, newspapers and magazines for customers in the Midwest and throughout the country. To handle a steadily increasing business volume, the company added two new printing presses in 2003. While expanding their printing capabilities,WWO ...
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Detection of petroleum-contaminated soils using Equilibrium Headspace and Methanol Extraction
Petroleum spills and leaking underground storage tanks comprise a significant portion of remediation projects. Soil removal and disposal determined based on the contaminants and concentrations present. Specific target analytes are associated with this type of contamination. A number of these compounds are classified as volatile organics and are used to assess the severity of the contamination, ...
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Improved Determination of Volatile Organic Compounds in Water by SPME and GC/MS: ISO Standard 17943
The analysis of water for volatile organic compounds is important due to their toxicity.The current methods for this determination lack of sensitivity, selectivity or capability for automation. This paper presents the new ISO 17943 Standard using Solid Phase Microextraction (SPME) and GC/MS. The sample preparation by SPME enables limits of detection and easy automation of the whole method. GC/MS ...
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Common Solvents (Volatile Organic Compounds-VOC’s) and Their Health Hazards
Are All Voc’s Hazardous to Health? Are Mineral Spirits, Petroleum Distillates, Petroleum Naphtha, Stoddard Solvent, VM&P Naphtha, Lacquer Thinner, Painters’ Naphtha, Turpentine, Isopropyl Alcohol, Methyl Alcohol, Toluene, Acetone, and Xylene all the same? Are they hazardous? The answer is NO! YES. No, they are not the same because each one is chemically different. Yes, because ...
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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% ...
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Detection Limits of EPA Method 8260 with Static and Dynamic Headspace GC-MS Analysis
Abstract EPA Method 8260 provides for the analysis of volatile organic compounds (VOC) in various solid waste matrices. The referenced EPA Method 5021, allows for the introduction of VOCs from solid samples by automated static headspace. The static headspace method permits the prescreening of samples to minimize over saturation of the chromatography system. The Teledyne Tekmar HT3 static and ...
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CPI Installs RTO at Metal Decorator
Catalytic Products International (CPI) recently completed the installation of a new 33,000 SCFM Regenerative Thermal Oxidizer (RTO) at a Midwest USA aerosol can manufacturer for the abatement of Volatile Organic Compounds (VOCs) generated during the metal decorating ...
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Odour control with Direct Cold Plasma
Odour emission during the production or processing of food and feed is often an unwelcome side effect. However, by using cold plasma technology, the smell can be reduced up to 95%. Increasingly, feed manufacturers are being required to address the issue of emitting of odour and harmful contaminants into the surrounding community. Local communities, special interest groups and government ...
By Seid
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Assessment and Remediation of Vapor Intrusion to Indoor Air, South Mesa State Superfund Site Gilbert, Arizona
Abstract Vapor intrusion to indoor air from volatile organic compound (VOC) contamination in the subsurface is increasingly becoming a more important exposure pathway when developing site conceptual models and ultimately obtaining site closure. Until recently, this exposure pathway was not often considered during site characterization. The direct measurement of the vapor intrusion to indoor air ...
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Toluene as an indicator of vehicular exhaust: Impact on Air Quality - Case Study
Background: According to the World Health Organization (WHO)1 , toluene (C6H5CH3) is a Volatile Organic Compound (VOC) that is believed to be the most abundant hydrocarbon in the troposphere. Sources of anthropogenic toluene emissions include catalytic conversion of petroleum and chemical production facilities; but, vehicle exhaust was considered to be the dominant source. The adverse health ...
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PID Calibration for Oil & Gas Industries
Photoionization detectors (PIDs) are crucial equipment for those working with gas and oil as they help to measure a range of gases, including volatile organic compounds (VOCs). Because of how frequently PIDs are used and the importance of their accountability and reliability, PID calibration for the oil and gas industries need to be carefully implemented. In this article, we will look at PID ...
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A Guide to BFB Tuning for VOC Analysis
All US EPA methods for volatile organic compounds (VOCs) require that specific GCMS tuning criteria be met before running a calibration curve or analyzing actual samples. The GCMS is tuned using the traditional tuning compound, PFTBA (perfluorotributylamine), and the tune is evaluated every 12 hours by injecting BFB (4-bromofluorobenzene) and measuring the relative intensity of key mass ...
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New Advancements for In Situ Treatment Using Electrical Resistance Heating
Abstract Electrical resistance heating (ERH) is proving to be an effective technology to rapidly heat the subsurface and, in doing so, removing volatile organic compounds. Practitioners of this technology have observed that other processes (biodegradation, abiotic degradation, hydrolysis, and possibly others) occur to break down the chemicals of concern, and remediation is not solely ...
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TerraStryke Erdenhanced In-Situ Passive Pilot Study Chlorinated DNAPL Source Zone Former Dry Cleaner Operations, Stoney Creek, Ontario, Canada - Case Study
TerraStryke Products LLC (TerraStryke) develop-distribute biostimulation additives proven to cost-effectively enhance chlorinated volatile organic compound (cVOC) biotransformation safely and completely. Our patented biostimulation additive ERDENHANCED leverages existing biogeochemical conditions to facilitate chlorinated alkane/alkene destruction. ERDENHANCED is proven to expedite residual mass ...
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Methods for the control of oil vapour emissions
There are many oil vapours to discharge from oil containers into the atmosphere in oil operations (such as storage and loading). Two basic concepts are discussed regarding the control of oil vapour emission (OVE). The first is to invent active methods to restrain the OVE. The second is to develop passive tail–end remediation technologies to control the released vapour. Oil vapour recovery ...
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Monitoring of Terpene Emissions from Pine Trees by Auto-TDGCs
It has been established that organic aerosols (OA) makes up a major fraction of fine particulate matter in all region of the atmosphere. This fraction accounts approximately for half of the total PM2.5 dry mass. Primary OA is directly emitted in the trophosphere from anthropological and natural sources whereas secondary OA (SOA) is formed in-situ in the atmosphere from the oxidation of biogenic ...
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Zero - Volatile Organic Compounds (VOCs) – EU-Project - Case Study
Volatile Organic Compounds (VOCs) are released, for instance, from organic solvents emitted from industrial processes. VOC emissions can be carcinogenic, and contribute to climate change and destruction of the stratospheric ozone layer. They react with nitrogen oxides forming ozone and smog. Directive 99/13/EC states that the VOC emissions from the solvent using industry should have been reduced ...
By Gasera Ltd
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Determination of Furan in Coffee by Static and Dynamic Headspace-GC–MS
Abstract Coffees have aroma and taste based on where the beans are grown, roasting techniques, and flavor additives. One component of the bean responsible for the aroma and some of the taste are volatile organic compounds (VOCs). Furan is one VOC that has recently been investigated in food (1). An FDA method for furan in food uses static headspace and requires 30 min of incubation time at 60 ...
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