Study on Treating Desulfurization Gypsum by Sulfate-Reducing Bacteria

A new method of converting the main component desulfurization gypsum (CaSO₄) using the sulfate-reducing bacteria (SRB) is proposed in this paper in the view of Chinese current condition. The metabolism way and function of some microbes in desulfurization are introduced in detail. By way of chemical analysis, the existing forms of sulfur and calcium in product were determined. By means of test of orthogonal experimental design and searching test, the key influence factors of treating desulfurization gypsum using SRB were investigated. Through analysis and discussion the experimental results, the optimum technological condition was searched out. Meanwhile it has carried on prospecting for future development and some problems meriting our attention.