Method for slowing down scaling in viscose fiber wastewater treatment process by using purified sodium hydrosulfide byproduct

The invention relates to a method for slowing down scaling in a viscose fiber wastewater treatment process by using a purified sodium hydrosulfide byproduct, and belongs to the field of viscose fiber production, and the method comprises the following steps: step (1), blending the purified sodium hydrosulfide byproduct into a purified carbonate solution; (2) adding lime or carbide slag into the viscose wastewater; and (3) adding the purified carbonate solution prepared in the step (1) into the viscose fiber wastewater treated in the step (2). According to the method, waste is treated by waste, so that the influence of scaling in the viscose fiber wastewater treatment process is relieved, the output of carbonate byproducts to the environment is reduced, and the treatment cost of the viscose fiber wastewater is reduced. 本发明涉及一种利用提纯硫氢化钠副产物减缓粘胶纤维废水处理过程结垢的方法，属于粘胶纤维生产领域，包括以下步骤：步骤(1)，将提纯硫氢化钠副产物调配成提纯碳酸盐溶液；步骤(2)，向粘胶纤维废水中加入石灰或电石渣；步骤(3)，向步骤(2)处理后的粘胶纤维废水中加入步骤(1)调配好的提纯碳酸盐溶液。本发明以废治废，既减缓了粘胶纤维废水处理过程中结垢的影响，减少了碳酸盐副产物对环境的输出，又降低粘