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以接种好氧污泥的上流式厌氧污泥床反应器(UASB)为研究对象,分析其启动及处理四环素类抗生素废水的可行性。采用分阶段交叉提高四环素废水浓度和进水负荷的方法,经过96 d的运行,成功启动了UASB反应器。最终进水四环素浓度为31.67 mg/L,容积负荷达到3.60kg COD/(m3·d)时,对COD的去除率为60%,挥发性脂肪酸浓度保持在200 mg/L左右,出水p H值及碱度分别维持在7.0和2 000 mg/L左右,污泥粒径由20~100μm增加到40~230μm。可见,接种好氧污泥启动UASB是可行的,且对四环素类抗生素废水有较好的处理效果。
The upflow anaerobic sludge bed reactor (UASB) inoculated with aerobic sludge was used as the research object to analyze the feasibility of starting and treating tetracycline antibiotic wastewater. The UASB reactor was successfully started after 96-day operation by adopting the method of crossing and increasing the wastewater concentration and influent load of tetracycline in stages. The final feed water tetracycline concentration of 31.67 mg / L, the volume load reached 3.60kg COD / (m3 · d), the removal rate of COD was 60%, volatile fatty acid concentration remained at about 200 mg / L, effluent p H value And alkalinity were maintained at 7.0 and 2 000 mg / L or so, the sludge particle size increased from 20 ~ 100μm to 40 ~ 230μm. Visible, inoculation of aerobic sludge start UASB is feasible, and the tetracycline antibiotic wastewater has a better treatment effect.