洗漂经过HF-HNO_3酸洗后的合金材料的水中会有大量残酸和重金属离子,经过下水道直接排放污染了环境。为了保护环境,79年开始进行电渗析,离子交换法的试验研究工作,使废水处理后能达到排放要求,并循环回用水。 Wash bleached HF-HNO_3 pickling alloy material after the water there will be a lot of residual acid and heavy metal ions, through the sewage discharge directly pollute the environment. In order to protect the environment, 79 years of electrodialysis, ion exchange method of experimental research so that wastewater treatment can meet the emission requirements, and recycled water.