An integrated device for desulfurization and denitrification of seawater and biological flue gas

Abstract

The invention discloses a seawater-biological process flue gas desulfurization and denitrification integrated device which comprises a flue gas temperature-regulation and seasoning chamber, a biological desulfurization chamber and a biological denitrification chamber through which flue gas passes through in a transverse S-shaped mode, wherein an opening in the upper side wall of the flue gas temperature-regulation and seasoning chamber is communicated with an opening in the upper side wall of the biological desulfurization chamber; an opening in the lower side wall of the biological desulfurization chamber is communicated with an opening on the lower side wall of the biological denitrification chamber; and the top side wall of the biological denitrification chamber is provided with a flue gas outlet. The chambers in the device are structurally independent and technically relevant, and the sequence of the chambers can not be changed. The device implements multifunction integration of cooling, dust removal, pre-desulfurization, desulfurization and denitrification, solves the problem of sulfur poisoning under high-sulfur conditions, and has the advantages of simple and compact structure, reasonable layout and small occupied space; and compared with the existing patents based on a single seawater desulfurization process or single biological process, the device disclosed by the invention has more complete functions, and is efficient and easy to implement.

Description

technical field [0001] The invention relates to a flue gas desulfurization device, in particular to an integrated device for desulfurization and denitrification of seawater and biological flue gas. Background technique [0002] SO in industrial flue gas 2 and NO x The pollution caused is the main problem of the current atmospheric environment, which directly restricts the coordinated and stable development of the economy and endangers the health of human life. After people's long-term efforts, in SO 2 Emission reduction has achieved initial results. However, the severe air pollution situation has not been fundamentally improved. With the improvement of people's awareness of environmental protection in all countries in the world, the legislation on atmospheric environmental protection in the international community is becoming increasingly strict, and it is urgent for people to develop new technology and remove SO 2 and NO x . At present, some large industrial flue gas...

AI Technical Summary

Problems solved by technology

Through theoretical calculation and practical application, it is found that if the SO2 in the flue gas is treated to more than 90% simply relying on the seawater desulfurization device, a huge amount of seawater is required

In addition, the seawater desulfurization method requires a large aeration tank to treat the discharged seawater containing unstable salts, which limits the use of the seawater method on ships and factories without large space

It can be seen that although the traditional seawater desulfurization process has been applied, the existing seawater consumption is large, the packing used in the absorption tower is expensive and consumes a lot, and the system operation cost is still high.

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