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Air Monitoring Environmental Monitoring in Landfill
The impact of landfills on the local population convinced Pollution S.r.l. (Italy) to develop an analytical system for environmental pollution. Currently, surveys for environmental analysis are carried out discontinuously, air samples are taken at regular time intervals and canisters are analysed in the laboratory: the absence of continuous monitoring and the delayed response does not allow real time action and tracking of the pollutants.
To better identify substances released from landfill, a preventive screening was performed using a portable Gas chromatography-mass spectrometry (GC-MS) system. The HAPSITE GC-MS system provides insights on the analysis of volatile organic compounds (VOCs) in environmental hazardous waste treatment and industrial hygiene. On-site critical information can be achieved in a fast and reliable way.
The process of continuous monitoring was then performed using a portable micro gas-chromatographer "Vega-CG" and a multipoint sampler "Vega-MPS" produced and distributed by Pollution S.r.l..
Vega MPS has the function to send in sequence to the VEGA-GC the samples “sucked” at different points inside or on the neighbourhood of the landfill. This system consists in a network of pipes of inert material (PTFE) and the intake air is continuously pumped in each line to ensure fresh and not diluted samples. Between sampler and analyser a concentrator EDU-3 from Airsense Analytics (Germany) has been placed to increase the sensitivity of the monitoring system. Also the concentrator is directly controlled by the Vega-GC.
Using the MC-Plan Software integrated in the computer of the Vega-GC, it is possible to record the chemical composition of the sampling point at a specific sampling time and to compare the concentration of each component with the TLV level (the threshold limit value). If the threshold level is exceeded on one or several points, an alert message is sent by email or to the mobile phone of the operator of the landfill. It is also possible to connect to the Vega-GC through a remote PC to graphically display the concentration trend during the last hour in order to perform a deep analysis.
Reader Reply Card no 158 New Combustion Suite Software Protea Ltd (UK) customers can now benefit from the company’s customised “Combustion Suite Software”.
This is an extremely important development from Protea, enabling users of the MCERTS Approved Mobile Protir204 FTIR System to have this innovative and extremely powerful analytical software running on their instrument.
The new powerful software was developed in-house by Protea. It provides customers with a set of ready-made analytical methods for the common inorganic combustion gas species required to be measured under the Waste Incineration Directive, including hydrogen fluoride and ammonia. These methods make use of Protea’s 15 years of experience in chemometric modeling for emission based FTIR analysers.
Of equal importance is the fact that the new software suite also has a special “VOC mode” that includes a large number of pre-loaded common organic compounds. With this a basic user is able to use the instrument immediately for such monitoring without the need to build new tailored spectral models. For other compounds, the software allows any number of spectral models to be added by the trained user at a later stage, making the 204M the ideal tool for new and expert FTIR users alike.
Richard Camm, Protea’s Managing Director says "We are extremely pleased with this new software. For the first time it enables users to benefit from the real analytical power of high resolution FTIR systems easily, without any significant customer input. The software does the work that previously required experts."
Protea also recognises that FTIR will need to be deployed for Regulatory Monitoring in line with the Environment Agency’s M22 Technical Guidance Note “Measuring Stack Gas Emissions using FTIR Instruments”. The Combustion Suite Software has been developed to implement this standard as it has all the required features of M22. Users are guided through the process, so they can have real confidence that the results they obtain are analytically correct andcomply with the standards.
Reader Reply Card no 159 New JPES Portable Gas Sample Probe
Continuing their investment into new product development (they have launched 3 new products in 2010), JCT (Austria) have launched their new portable sample probe: the JPES Series.
Used for applications where periodic monitoring is required over a short time period. Operators and Test Laboratories require lightweight and easy to handle equipment that are designed to meet a whole range of process parameters and regulatory needs.
Traditional methods were expensive, heavyweight and technically poor. The new JPES changes this completely: it is high quality, lightweight, easy to set up and offers the user a superior product that can easily be taken to the sample point with the flexibility to give excellent performance on virtually every application.
SO3 Controlled Condensation Systems
The Express SO3 Controlled Condensation System from CleanAir Europe is designed to allow the separation of H2SO4 from SO2 by cooling the gas stream below the dew point of H2SO4 but above the H2O dew point. Applicable for method 8A Determination of Sulphuric Acid Vapor or Mist (including Sulphur Trioxide) and Sulphur
Dioxide Emissions from Kraft Recovery Furnaces. The condenser utilises a straight quartz tube filled with quartz wool surrounded by a temperature regulated water bath. No recirculation pump or external water heaters are required. The system works in conjunction with standard Method 5 Isokinetic Control Consoles and Heater Controllers.
Reader Reply Card no 161
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Reader Reply Card no 162
info@iet-pub.com
The JPES probe works by removing particulates from the gas measurement stream and is the primary filtration device for the overall analysis system. It is fully heated to eliminate cold spots that cause filter element blockages due to the build up of wet particulates. The design and location of the internal heaters ensure that the probe has absolutely no cold spots where condensation can form, additionally the clever design of the supplied heated hose means that the temperature controller, thermocouple cable and voltage supply cables are all integrated into the device. This means that the operator has only ONE connection to make to the site power supply.
The JPES portable probe is supplied in a lightweight and compact carry case. Once on site, the operator only has to take out the probe and connect the supplied heated hose and connect the power cable to the site connection. Within a short time, the probe is up to temperature and the sample monitoring can begin.
Reader Reply Card no 160
IET
November/December 2010
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