The invention relates to a method for removing
sulfate and Zn(II)
wastewater by virtue of synergism of spongy iron and microorganisms. The method comprises the following steps of: mixing a spongy iron solution A, a bacterial suspension B of sulphate reducing
bacteria and a bacterial suspension C of
ferric reducing
comamonas at a volume ratio of (1:1:1) to (1:3:4), aging the mixture for 40-60 minutes, repeatedly washing with
deoxidization deionized water after reaction is finished, and soaking a product in a
stroke-
physiological saline solution, thereby obtaining a mixture of spongy iron and sulphate reducing
bacteria / iron-reducing
bacteria; mixing the mixture of spongy iron and sulphate reducing bacteria / iron-reducing bacteria with the
sulfate and the Zn(II)
wastewater, performing reaction at a
room temperature for 20 hours or more, and purifying the
wastewater sulfate and the Zn(II) at the same time. The method is capable of achieving the Zn(II) removal rate not less than 91%, required equipment is simple, the operation is convenient, reaction is finished at the normal temperature and a normal pressure, products are in a
solid phase, the
reaction system is in a
liquid phase, the products are easy to separate, and the method is suitable for large-scale industrial production.