Abstract: Copper and polymerized ferric sulphate were prepared by using scrap iron coils to react with acid wastewater containing copper ion. Esterification wastewater was treated by using polymerized ferric sulphate as flocculant. The results showed that 8.5 kg of copper powder and 230 kg of polymerized ferric sulphate containing Fe3+ 158~160 g/L were obtained from 1 t of acid wastewater containing copper ion, and the removal rates of H2SO4 and Cu2+ in the acid wastewater could gain 83.5% and 85.0%, respectively. Under optimum conditions, the rem

Key words: scrap iron coils, acid wastewater containing copper ion, esterification wastewater, polymerized ferric sulphate, copper powder

摘要： 利用废铁卷与含铜酸性废水作用制备金属铜和聚合硫酸铁，并用聚合硫酸铁作絮凝剂处理酯化废水. 实验结果表明，1 t含铜酸性废水可制得8.5 kg铜粉及230 kg Fe3+浓度为158~160 g/L的聚合硫酸铁，处理后酸性废水中的硫酸含量降低了83.5%, Cu2+含量降低了85.0%. 在优化条件下，沉降30 min，酯化废水的COD及色度去除率分别达到了86.8%和88.5%.

关键词: 废铁卷, 含铜酸性废水, 酯化废水, 聚合硫酸铁, 铜粉