With Regard To Environmental And Economic Evaluation Of The Cement Plant Desulphurization And Dust Removal Process

Based on the ideal of "environmental cost internalization", the calculation result of environmental damage of SO₂ and TSP emitted by the cement plant have been evaluated in this paper and added to the investment, And an economic synthesis assessment for desulphurization system and dust catchers is done.Calculating the environmental damage cost of a singe point source is the core of this paper. An estimate environmental damage cost model of SO₂ and TSP is built up. A computer procedure carries it out.Using the acquired model, the differences of environmental damage with and without desulphurization and dust catching are estimated for one cement plant.. And the avoided environmental damage is compared with the investment. The results present that desulphurization system and dust catches can bring large environmental efficiency. And the cost of controlling air pollution is valuable. Making use the estimated result of the cement plant, an economic assessment of desulphurization system cost and dust catchers cost has been done.The conclusion is that higher efficiency techniques are more economical when the environmental damage is taken into account.