| 摘要 |
A method of manufacturing Fe and Ni containing material using Fe and Ni containing sludge is provided to manufacture the Fe,Ni containing material in which the content of S is low from the waste water in which Fe, Ni, SO4 is contained with the high collection rate. A method of manufacturing Fe and Ni containing material using Fe and Ni containing sludge includes the next step: a step for preparing Fe, Ni, SO4 containing waste water; a step the pH of the waste water injects the SO4 neutralizing agent in the waste water so that 0.5~ 2.5 be and that makes SO4 neutralized and removed; a step for precipitating in the form of the hydroxide [(Ni,Fe) (OH) 2] the iron and nickel NaOH is added in the liquid removed SO4; a step for washing to the water precipitate; and a step for manufacturing the Ni, Fe containing material. |
