摘要
针对某医药中间体废水成分复杂,有机物浓度高,具有生物抑制性,废水可生化性差等特点,对其进行了铁碳微电解联合Fenton氧化-混凝沉淀预处理试验研究。通过正交试验进行了微电解过程中铁碳比、反应停留时间、pH、铁粉投加量等参数的优化,COD的去除率为29.1%。结合后续Fenton氧化与混凝沉淀试验,当H2O2投加量为8%,适当调节混凝pH,整个预处理系统出水COD去除率达45.0%,总磷的去除率达77.1%,盐度去除率为24.8%,色度去除率高达95%,可生化性提高至0.29,为后续综合污水的生物处理提供了有利条件。
Aiming at complex components, high concentration of organic compounds, and low biodegradability in pharmaceutical intermittent wastewater, microelectrolysis-fenton oxidization and coagulating sedimentation was used to pretreat it. The orthogonal experimental study optimized parameters including mass ratio of iron and carbon, hydraulic retention time, pH value and iron dosage during the process of micro-electrolysis, and the removal rate ofchemical oxygen demand （COD） reached t.o 29.1%. Combining with the following fenton oxidization and coagulating sedimentation process, the removal rate of COD was up to 45.0%, the removal rate of total phosphorus was 77.1%, the removal rate of salinity was 24.8%. It also can get lid of 95% chroma, and enhanced biodegradability up to 0.29, which was benefit for the following biochemistry process.
出处
《水处理技术》
CAS
CSCD
北大核心
2012年第10期62-64,共3页
Technology of Water Treatment
基金
国际科技合作项目(2007DFA90660)
关键词
医药中间体废水
微电解
FENTON氧化
混凝沉淀
pharmaceutical intermittent wastewater
micro-electrolysis
fenton oxidization
coagulating sedimentation
