摘要
采用混凝沉淀协同好氧生物膜技术深度处理造纸废水,分别考察了PAM、FeCl3、Al2(SO4)3这3种不同种类的混凝剂对CODCr和色度去除率的影响,并特别研究了PAM投加量对反应过程的影响规律。结果表明:以FeCl3为混凝剂的协同好氧生物膜技术效果最为显著,色度去除率最高为69.30%,与单独使用FeCl3为混凝剂的混凝沉淀相比,CODCr去除率提高了73.72%;当PAM投加量分别为1.5mg/L、3.0mg/L、4.5mg/L、6.0mg/L时,以3.0mg/L时效果最佳,CODCr和色度去除率分别达到63.18%和47.64%。
The technology of aerobic biofilm combined with coagulating sedimentation was introduced in the process of advanced treatment of papermaking wastewater. In this paper, the influence of three kinds of coagulating reagent （PAM, FeCl3, Al2（SO4） 3）, especially the PAM dosage, on colority and CODcr removal efficiency was investigated. The results show that the FeCl3 - coagulant - aerobic biofilm had the most significant effect, with the maximum removal rate of colority of 69.30 %, compared with the traditional coagulating sedimentation, the removal rates of CODcr increased 73.72 %. Comparative experiments had proved that the optimum PAM dosage was 3.0mg/L when it varied from 1.5mg/L to 6.0mg/L, and the removal rates of CODcr and colority reached 63.18 % and 47.64 % respectively.
出处
《造纸科学与技术》
北大核心
2010年第1期84-88,共5页
Paper Science & Technology
基金
华南理工大学制浆造纸工程国家重点实验室自主研究课题
关键词
混凝
好氧生物膜
深度处理
造纸废水
coagulation
aerobic biofilm
advanced treatment
papermaking wastewater
