火电厂气体和固体污染物研究.ppt

,A STUDY OF THE GASEOUS AND PARTICULATE POLLUTANTS IN THE ENVIRONMENT OF A THERMAL POWER PLANT PROJECT AREA,环本1213班 张 婵 1282091308 滑夏赟 1282091314,Introduction,Details of the Industrial Complexes in the Project Area,Location of Measurements,Catalogue,1,2,3,4,Measurements,Location of Measurements,Measurements,Catalogue（Cont.),Meteorological conditions,Computation of Sulphur Dioxide Dispersion,5,6,7,8,Result and Discussion,Conclusions,Introduction,The influence of power plants on climate：the rainfall . Primary measurements: 1、SO2; 2、NH3; 3、NO2; 4、oxidents; 5、total suspended particulates（TSP）.,Details of the Industrial Complexes in the Project Area,The working condition of the thermal power plant(TPP).,Location of Measurements,Measurements,thermal power plant area petrochemical industry complex (PIC) SO2 samples 49 gaseous pollutants 18 total suspended particulates in morning&evening,Analytical scheme for the analysis of gaseous pollutants and TSP,Meteorological Conditions,The southeastern part of the peninsular India: its main rainy season from October to December (the northeast monsoon),The airflow in the lower troposphere,Computation of Sulphur Dioxide Dispersion,The concentration of SO2 was computed by using the following equation:,Corrections(the differences between sampling periods adopted in the computations and in the actual observations):,Results and Discussion,Results,2.TSP,3.SOURCES OF TSP,4.DISPERSION OF SULPHUR DIOXIDE,1.GASEOUS POLLUTANTS,NO2,The maximum:Site 2 Sources:the combustion products(CCI),The maximum:Site 4 Morning higher than evening Reason:sea breeze,The maximum:Site 4 Sites 2 and 4 higher than Sites 1and 3,SO2,NH3,GASEOUS POLLUTANTS,O3,The maximum:Site 4 Sources:PIC,TOTAL SUSPENDED PARTICULATES(TSP),The maximum:Site 2 Reason:CCI located in the upward region High concentrations:Site 1 Source:the large constructional works of the TPP The minimum:Site 3(located at the coast) Cl- and Na+ concentrations: the maximum:Site 1(in the Tuticorin Bay) the minimum:Site 2(the differences in the physical and chemical characteristics of the particulates emitted from CCI. ),SOURCE OF TSP,Na/K and Na/Ca in TSP lower than sea water:K+,Ca2+ contributed by sources of local origin. Cl/Na for TSP twice for sea water and Na/SO4 half for sea water:Cl- and SO42- having sources other than the sea.,The contribution by sea to the total TSP is about 9%, Sources other than the sea contribute about 11% of the water soluble constituents of TSP.,DISPERSION OF SULPHUR DIOXIDE,Site 4 wind speed of 6.5 m/s wind directions ranging 70 to 90,The deviations are largely due to widefluctuations in the wind direction.,Conclusions,The measured concentrations are in the order of world background average concentrations(the downwind of thePIC),The concentrations of the TSP and its water soluble components: the areas downwind of the PIC and the TPP higher than the coast.(sea 9%,other sources 11%),The predicted max concentration of SO2 in site 4 is substantial for the most favourable condition.,The