Abstract:

The regeneration condition of ion exchange resin has been optimized for the copper-containing wastewater device of printed wire board. The experimental results showthat the exchanged copper volume is 26.1-29.0 kg/cyc when the regeneration liquid flow rate is 2 000 L/h and the regenerant concentration is 8.5%. When the re generation liquid is used again, the total copper is exchanged to18.5-21.3 kg/cyc and Cu ²⁺ rise to about 20 g/L. This technology is in favor of recovering copper and saving the regenerant.

Key words: ion exchange process, regeneration, wastewater treatment, copper-containing wastewater

摘要：

对某线路板厂含铜废水处理装置的离子交换柱再生工艺条件进行了优化。结果表明，当再生液流量为2000L/h，再生剂质量分数为8.5%时，每次交换出的总铜量达26.1～29.0 kg；采用再生液二次利用工艺时，每次交换出的总铜量为18.5～21.3kg，废再生液Cu²⁺质量浓度上升到20g/L，可节约再生剂用量，并有利于铜的回收。

关键词: 离子交换, 再生, 废水处理, 含铜废水

CLC Number: 

• X703.1