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| Titel |
Investigation of local sulfur dioxide pollution from a thermal power plant using lidar and point monitors measurements |
| VerfasserIn |
Luminita Marmureanu, Camelia Talianu, Jeni Vasilescu, Livio Belegante |
| Konferenz |
EGU General Assembly 2011
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250055627
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| Zusammenfassung |
| In Romania almost 40% from energy is produced by thermal power plants. The low quality of
coal used in fossil-fuel power plant is responsible for atmospheric pollution mainly with SO2
and NOX and also for a large quantity of CO2 released in the atmosphere. Rovinari power
plant is one of the biggest thermal power station from Eastern Europe and represents one of
the largest electricity producer in Romania, having 4 groups of 330 MW each, thus totaling
an installed capacity of 1,420 MW and being responsible for local and regional problems
related to acid rain, formation of fine particulate matter, smog etc. Rovinari power plant is
located in the South part of Romania (at the following coordinates 44054’45”N - 2309’44”E),
in the Rovinari-Motru coal mining area, near Rovinari town that has almost 12500
inhabitants.
Because sulfur dioxide pollution represents a regional problem, this power plant is in
process of modernization, process that includes the fitting of several sulfur oxide scrubbers at
the existing power groups, in addition to other retention of pollutants and prevention of
pollution technologies.
The fuel used in this power plant is lignite that has low calorific value and contains
relatively higher amounts of ash, moisture and sulfur. Most of the lignite mined in Romania is
consumed in the thermal power plants since it is not appropriate for use in other types of
industry and heating.
In this study, the behaviors of the SO2 resulting from lignite-fired thermal power
plants are investigated at local scale. We focused on SO2 pollution in the regions
nearby, at 2 km from power plant in which the SO2 can affect directly the life of local
population.
During one field campaign in September 2010 in Rovinari city were made measurements
with lidar to see the pollutant layers in the atmosphere above the town, near the factory
chimneys using the lidar and at 2 m from ground punctual measurements. Measurements
were made in an intercoparison campaign simultaneously with Eye-safe Mini Lidar with
detection channels on 355 cross and 355 parallel and Horiba punctual analyzer for the
continuous monitoring of atmospheric SO2using UV fluorescence. All the data was
correlated with sulfur dioxide emission reported by Rovinary power plant facility to the local
authorities in order to identify whether the local weather conditions facilitate the SO2
increase in nearby human establishments.
In this campaign were recorded some high concentration episodes of sulfur dioxide. SO2
concentration at ground has been found to depend not only on the wind direction and
intensity and other weather conditions, but also on the time of the day, this being in
connection with the diurnal fluctuation of the Planetary Boundary Layer height. |
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