摘要
研究了结晶-过滤组合工艺对含铜废水的处理效果。结果表明:对于pH值为3.0,Cu2+的质量浓度为42.2mg/L的含铜废水,加药比(cCO2-3∶cCu2+)为2.6∶1.0时,处理效果最佳,出水中Cu2+的质量浓度为4.43mg/L,去除率为89.5%;进水量较高时,三点加药的处理效果优于两点加药的;通过后续的石英砂过滤,出水中Cu2+的质量浓度低于0.2mg/L,过滤周期为12h。结晶-过滤组合工艺能够有效地处理含铜废水,出水中Cu2+的质量浓度可以达到排放标准。
The effects of a combined crystallization and filtration process on the treatment of copper containing wastewater were investigated. The results show that for an acid wastewater containing copper with pH of 3.0 and Cu2＋ mass concentration of 42.2 mg/L, the treating effect is the best when dosing ratio （cco32-：ccu2＋ ） is 2. 6 ： 1. 0, resulting in a Cu2＋ mass oncentration of 4.43 mg/L in the effluent, the removal rate reaching 89.5%. Three-point dosing was better than two-point dosing when feed water volume is higher. After subsequent quartz sand filtration, the Cu2＋ mass concentration in the effluent is far lower than 0.2 mg/L. The filtration cycle is 12 hours. The combined crystallization and filtration process can effectively treat copper containing wastewater, making the Cu2＋ mass concentration in the effluent meet the discharge standard.
出处
《电镀与环保》
CAS
CSCD
北大核心
2012年第5期39-41,共3页
Electroplating & Pollution Control
基金
国家水体污染控制与治理科技重大专项(2008ZX07211-004)
关键词
含铜废水
结晶
过滤
copper containing wastewater
crystallization
filtration
