This technique is a cost efficiency technique. It employs the industry waste (Fe) as de-sulphur material, and remove the SO2 in the flue gas, and produce the water treatment agent (PFS) as well. This technique produces no waste except the water treatment agent. It is a typical cleaner production technique and resource recovery technique. It brings about economy benefits, social benefits as well as environmental benefits
Up to now, we have won the patent of China and finished the lab experiment, pilot experiment, field experiment in electricity factory. Satisfy results have been achieved in the field experiments. This technique has been certificated by Ministry of Education, China and is convinced to be an original technique of international leading level.
This technique can get the benefit by polymeric ferric sulfate, which could make up with the perform charge and the equipment investment. For a company with 650000Nm3/h, the total invests is 55.6876 million yuan, 6950t/y of SO2 was reduced, and 25568t/y Polymeric Ferric Sulfate was produced. The total benefits is 50.1924 million yuan, and the pure profit is 8.1683 million yuan per year.
