Effects from Fe, P, Ca, Mg, Zn and Cu in Steel Slag on Growth and Metabolite Accumulation of Microalgae: A Review

Steel slag is the solid waste produced by steelmaking process. At present, there are differences in treatment and utilization of this among countries around world. The massive accumulation steel not only occupies land, but also heavy metal elements leached rainwater cause serious pollution to soil groundwater, both which threaten life survival surrounding residents. More more attention has been paid resource because gradual promotion energy saving emission reduction all over Currently, fields that utilize focus on recycling waste, acting as sinter raw material, dephosphorization hot metal, road water conservancy project construction, wastewater application CO2 capture flue gas desulfurization or agriculture. Many researchers have carried out research explorations effects microalgae’s growth found enormous potential algal biomasses huge advantages for promoting metabolites. Under suitable conditions, can effectively promote reproduction, well metabolites, especially lipid accumulation. Thus, be used an ideal nutrient microalgae. Culturing microalgae with lower cost solve problem lacking Fe during process marine growth. Meanwhile, it alleviate phenomenon substantial stacking slag. This study provides new methods slag’s utilization.