摘要
采用铁碳微电解池-离子交换柱组合工艺对黄连素含铜制药废水进行预处理中试试验。在投加一定量铁屑和活性炭情况下,考察了中试系统对废水中CODCr和Cu2+的去除效果,并设计了金属铜回收的工艺流程。结果表明:采用铁碳微电解池-离子交换柱组合工艺连续处理初始CODCr为60000～80000mg/L,初始Cu2+浓度为12000～18000mg/L的黄连素含铜制药废水,当铁碳微电解池中铁屑和活性炭投加量均为300g/L时,铁碳微电解池水力停留时间120min,离子交换柱水力停留时间60min,CODCr的去除率达44%以上,Cu2+的去除率超过79%。使用该工艺处理每t废水可回收铜12～13kg,实现了金属铜的循环利用。
The berberine wastewater containing copper was pretreated by pilot scale Fe-C microelectrolysis reactorion exchange column combined process. When a certain amount of iron and activated carbonwere added into the reactor, the CODCr and Cu^2＋ removal efficiency were tested, and the copper recovery process was designed. The results showed that the berberine wastewater containing copper with initial CODCr of 60 000-80 000 mg/L and Cu^2＋concentration of 12 000-18 000 mg/L could be pretreated effectively by Fe-C microelectrolysis reactor-ion exchange column combined process. The CODCr removal efficiency was higher than 44% and CuCr removal efficiency higher than 79% under the conditions of iron and activated carbon dosage being both 300 g/L, the hydraulic retention time（HRT） of 120 min and ion exchange column HRT of 60 min. 12-13 kg bronze per ton wastewater could be recovered, having realized the cyclic utilization of bronze.
出处
《环境工程技术学报》
CAS
2012年第4期319-324,共6页
Journal of Environmental Engineering Technology
基金
国家水体污染控制与治理科技重大专项(2012ZX07202002)
国际科技合作项目(2010GR10768)
关键词
铁碳微电解
离子交换柱
含铜废水
预处理
Fe-C microelectrolysis
ion exchange column
copper-containing wastewater
pretreatment
