脱硫灰与钾矿石复合生产钾钙硅镁硫肥料研究.pdf

4 10 环境 工程学 报 V o l. 4, N o. 1 0 2 0 1 0 1 0 Ch inese Journal of Env ironm enta l Eng ineering O ct . 2 0 1 0 石 林 ( , 5 10006 , : ; 1034% ~ 120% , 1906% ~ 3228% , 1098% ~ 144 6% , 146% ~ 182% pH 1065 960, SO2 350 / t, , , X705 A 167 39108( 20 10 Study on a com pound fertilizer w ith K, Ca, S,i M g, and S elem ents by calcing a m ixture of FGD residue and potassic ore Sh i L in ( T he K ey L ab of P ollut ion C on trol and E cosy stem R estorat ion in Industry C lu sters, M in istry of Educat ion, School of Environm en tal S cien ce and Eng ineering, South Ch ina U n ivers ity of T echno logy, Guangzhou 5 10006, Ch ina Abstract T he study sign ificance, reaction princ iple, m anufacturing process, env ironm enta l safety assess m ent and app ly ing m ethod about m anufacturing a com pound fertilizer w ith K, C a, S,i M g and S elem ents by ca l cing a m ixture of FGD residue and po tash o re w ere introduced and evaluated in th is paper. M eanwh ile, its app li ca tion prospect w as also revealed. T he research results show ed that th is process is feasib le on theory comp lete ly. The m anufactured fert ilizer u sing th is process conta ined 1034% ~ 120% K SO , 1906% ~ 322 8% CaO in 2 4 c itr ic acid, 1098% ~ 144 6% S iO2 in citric acid, 146% ~ 182% M gO in citric ac id. T he pH value in m an u factured fertilizer decreased 960 from 1065 in the crude FGD residue. T he heavy m eta l concentrations in