微生物在过渡金属脱硫中的应用

THE APPLICATION OF MICROORGANISM IN THE TRANSITION METAL DESULPHURIZATION

酸性条件下,借助过渡金属的催化氧化性,可以将烟气中的SO_2转化为S(Ⅳ),以Fe^(2+)为能源,在繁殖过程中不断将Fe^(2+)转化为Fe^(3+)的T.f菌(氧化亚铁硫杆菌)引入脱硫吸收液以维持Fe^(3+)浓度,从而获得较高的脱硫效率.对T.f菌的驯化以及微量营养物质的加入,是T.f菌发挥其功效的关键.

With the aid of the transition metal catalyzed oxidability, SO2 can be transformated into S （ Ⅳ ） under the acidic condition. Because of the reduction of Fe^3＋ and the production of by-product, the desulphurization efficiency reduces unceasingly. Therefore, we add the Dian Yuan Bacteria 1 （DYB1）fungus, which take Fe^2＋ as the energy and can transformed Fe^2＋ into Fe^3＋ continuously in its multiplicative process, into the the desulphurization absorption solution to maintain the Fe^3＋ density, thus obtains the high desulphurization efficiency. The domestication of DYB1 as well as the adding of micro nutrients the key of DYB1 to play a full role.