Laboratory Gas Articles
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Optimising biogas generation in the UK and Germany - Case Study
Methane makes money. It generates energy revenues, carbon credits and is part of bio-treatment sludge processing. In most of the world it has only just begun. Measuring what we are doing and being responsible with this potentially damaging greenhouse gas makes good sense. With gas production for revenue, measurement is essential. While landfill gas analysis has been required for compliance with ...
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A fully automated system for measurements of photosynthetic oxygen exchange under immersed conditions: an example of its use in Laminaria digitata (Heterokontophyta: Phaeophyceae)
Abstract A new, fully-automated, closed-chamber system was developed for measuring photosynthetic activity in aquatic plants, algae, or corals during immersion. The performance of this system, which monitors oxygen exchange, was evaluated both in the laboratory and in situ under natural conditions using the seaweed Laminaria dtgitata. Intact, large individuals were placed inside the chamber and ...
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Combining Spectroscopy and Separation Science in Process and Emissions Monitoring
ABSTRACT Ultraviolet (UV) absorption spectroscopy provides rapid real-time analysis of many species of interest to industrial monitoring. In some applications, the presence of other interfering species obfuscates the measurement of interest and makes accurate and reliable analysis of trace components difficult. The use of auto-carrier, frontal elution chromatography in conjunction with a process ...
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Asset integrity management: sustainability in action
The current industrial demand is to be more 'green', whilst increasing pressure for formulating policies and strategies for sustainable asset performance. Asset integrity management issues conceived within oil and gas (O&G) sector in terms of the long-established paradigm seemingly is unsustainable. The conventional industrial paradigm of unlimited growth appears to be unsustainable as it ...
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Validation of a New Method for Screening Soil and Water for TCE Contamination
INTRODUCTION ASTM Method D 7203-06, Standard Test Method for Screening Trichloroethylene (TCE)-Contaminated Media Using a Heated Diode Sensor, (ASTM 2006) can be used to screen a sample of soil or water known to contain the halogenated volatile organic compound (HVOC) TCE. The method calls for measuring the TCE concentration in the headspace above the sample using a heated diode sensor ...
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Innovations in Site Characterization. Case Study: Dexsil L2000 PCB/Chloride Analyzer for Drum Surfaces
Executive Summary This case study describes a field analytical method that was used to measure PCB surficial contamination in empty drums to be cleaned by a new process. Approximately 7,000 empty 55-gallon drums that previously contained PCB-contaminated material had accumulated at the Department of Energy (DOE)’s East Tennessee Technology Park in Oak Ridge, TN. Because disposal of these drums ...
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