Sulfur polymer cement, its production method and waste treatment method

摘要

PURPOSE:To improve treating characteristics in producing sulfur polymer cement (SPC) and a sequestering property for harmful heavy metals and a strength characteristic of a treated product obtained by treating a waste containing heavy metals into a solid by using the SPC. CONSTITUTION:This sulfur polymer cement comprises a polymerization reaction product between sulfur and a reaction agent comprising 10-90wt.% ethylidene norbornene and styrene monomer. This method for treating a waste containing heavy metals is to mix the sulfur polymer cement with the waste containing heavy metals, heat and melt the mixture and solidify the molten product by cooling after kneading. The product is used as a civil engineering material. The treating characteristics in producing the SPC and characteristics of the product are improved by this method. The waste containing harmful metals solidified with the SPC is excellent in compressive strength and inhibition of heavy metal elution and, accordingly, it is suitable for a civil engineering material and aggregate for the material.