电解二氧化锰漂洗废水的循环利用探索

Cyclic utilization of rinse wastewaters from electrolytic manganese dioxide process

电解二氧化锰行业漂洗工序会产生大量的漂洗废水,易造成严重的资源浪费和环境污染。文章以广西某锰业企业为例,分析了传统漂洗工艺的缺陷和可优化之处,进行了漂洗工艺中废水的分级分类循环回收分析,重点探讨了酸洗工艺中锰的回收、酸的回收等,并展望了漂洗废水循环利用的发展趋势,可为电解二氧化锰行业的清洁生产和漂洗废水的循环利用提供参考。

A large amount of rinse wastewaters is discharged in electrolytic manganese dioxide process and has caused serious resource waste and environmental pollution.The defects,optimization methods,wastewater classification and cycle recovery in the traditional rinse process were analyzed especially including manganese and acid recovery form the pickling process.In addition,the rinse wastewater recycling in the future was predicted.This study can provide references for the clean production and recycling of wastewaters in electrolytic manganese industry.