New Robust Continuous Particulate Monitoring Solutions to meet Latest Regulatory Challenges


Significant changes in European legislation regarding the monitoring and reporting of emissions will drive process operators of plant falling under the Large Combustion Plant Directive (LCPD) or the Waste Incineration Directive (WID) to re-assess their approach in finding solutions to satisfy new directives.

EN-14181 is one of the most demanding standards to be developed by CEN which begins by detailing an assessment method to determine the suitability of monitoring equipment prior to purchase and continues through installation, commissioning, operation and maintenance.

PCME, world-leading manufacturers of particulate monitoring systems provide two robust compliance solutions to these requirements:

The DT991 is suitable for measuring particle emissions in constant processes controlled by Bagfilters. Certified to 0-15 mg/m3, the DT991 is suitable for LCPD and WID processes with emission limit values of 10 and 30 mg/m3 as in Waste Incineration and Cement Kilns rated as co-incineration processes.

The processed signal from the DT991 can be correlated to dust concentration using a standard reference method according to a QAL2 calibration. Automatic self-checks are extended to provide zero, span and contamination tests which asses uncertainty and to record results for later statistical analysis providing the infrastructure for QAL3 tests. A reference “AST linearity tester” is provided as a test accessory to demonstrate linearity as required by the Annual Surveillance Test.

In addition, PCME carried out a leading edge project to develop a new and innovative technology designed to encompass solutions to monitoring issues associated with changing particle type and size.

The LMS181 is suitable for measuring particle emissions after both bagfilter and electrostatic precipitator arrestment plant and is especially relevant where it is critical to obtain reliable, accurate and robust emissions data. Sensitivity to changing particle type and size is minimised due to the unique Pro-Scatter technology which utilizes low angle forward scattering.

Automatic self-checks and appropriate zero and upscale (span) tests are designed to ensure appropriate quality assurance and to meet the QAL 3 regulatory requirements. Instrument performance is continually interrogated by these checks, from the in-specification operation of the transmitter and receiver optical and electronic components to the instruments accuracy in measuring scattered light which permits any instrument failure or mis-measurement to be rapidly diagnosed and corrected.

QALReporter 2 software is fully compatible with both the DT991 and LMS181 to provide secure and powerful emissions reporting together with QAL3, zero and span results.

Archive 2006