The production output, the pollution discharge and the energy cost are contrasted before and after the carrying-out of Positive Pole Roaster Cleaner Production Technology. The results indicate that the production output increases by 27. 3%, main pollutants are cut down in a range from 16.7% to 97.5%, and the expense of heavy oil is reduced by 42 %. And the technology is operative and suitable to our national conditions. Obviously, it can produce remarkable social, economic and environmental benefits, because it can save the energy,...
