固定化生物吸附剂处理含铜电镀废水的研究

通过平板涂布法,从电镀污泥中筛选得到1株吸附Cu~(2+)性能优良的菌株,鉴定其为假单胞菌,并将其制成固定化生物吸附剂。研究了包埋比、吸附时间、温度、Cu~(2+)初始质量浓度、pH值、投加量对固定化生物吸附剂去除Cu~(2+)的影响。结果表明:当包埋比为1∶5、吸附时间为60min、温度为35℃、Cu~(2+)初始质量浓度为100mg/L、pH值为6、投加量为10g/L时,固定化生物吸附剂对Cu~(2+)的去除率可达到85.2%。

Study on Treatment of Electroplating Wastewater Containing Copper by Immobilized Bio-adsorbent

A bacterial strain with good adsorption performance for Cu2+ was screened from electroplating sludge using plate smearing method.This bacterial strain is identified as pseudomonas,and it was made into immobilized bio-adsorbent.The effects of embedding ratio,adsorption time,temperature,Cu2+ initial mass concentration,pH value and dosage on the removal efficiency of Cu2+ by immobilized bio-adsorbent were studied.Results showed that the removal efficiency of Cu2+ could reach 85.2％ when embedding ratio was 1:5,adsorption time was 60 min,temperature was 35 ℃,Cu2+ initial mass concentration was 100 mg/L,pH was 6 and dosage was 10 g/L.