Application and Product Standard of Purified Crystalline Salt from Desulfurization Wastewater of Thermal Power PlantZhengkun Li, Ruozheng Li, Xiaoyu Liu, Chong Zhao and Ying TianE3S Web Conf., 136 (2019) 06019DOI: https://doi.org/10.1051/e3sconf/201913606019