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针对头孢菌素类抗生素废水,采用新一代固定床生物膜反应器(ICB)对其进行处理,并通过臭氧催化氧化技术深度处理生物反应器出水。结果表明,在高进水负荷下ICB+臭氧催化氧化组合工艺能够保证出水水质满足《发酵类制药工业水污染物排放标准》(GB 21903—2008)新建企业水污染物排放限值。ICB的极限进水COD容积负荷为2.28 kg COD/(m~3·d),且具有良好的反硝化脱氮能力,反硝化速率为0.42 kg NO_3~--N/(m~3·d)。臭氧催化氧化技术在臭氧投加浓度为125 mg/L、反应停留时间为60 min时,对COD的平均去除率为50.23%。
For the cephalosporin antibiotic wastewater, a new generation of fixed-bed biofilm reactor (ICB) was used to treat the wastewater and the bioreactor effluent was deeply treated by the ozone catalytic oxidation technology. The results showed that the combination of ICB + ozone catalytic oxidation process under high water loading could ensure the quality of effluent to meet the water pollutant discharge limits of new enterprises in “Emission Standard of Water Pollutants for Fermentation Pharmaceutical Industry” (GB 21903-2008). The limit influent COD volumetric loading of ICB was 2.28 kg COD / (m ~ 3 · d), and had good denitrification ability. The denitrification rate was 0.42 kg NO_3 ~ - N / (m ~ 3 · d) . In the ozone catalytic oxidation technology, the average removal rate of COD was 50.23% when ozone concentration was 125 mg / L and reaction residence time was 60 min.