藻菌生物反应器处理油田污水的实验研究

Study on the Efficiency of Algae Bioreactor for Oilfield Wastewater Treatment

利用实验室配置的模拟油田污水,考察了小球藻和藻菌生物反应器对污水净化处理效果和生物量积累的影响。实验数据显示:藻菌生物反应器运行25 d时,对模拟油田污水COD、TP、NH_(4)^(+)-N的去除率分别为44.23%、88.68%、85.01%,TN在反应器运行到53 d去除效果最高达到80.99%。小球藻生物反应器运行的第25天对污水COD、TP和NH_(4)^(+)-N的去除率分别为35.45%、81.17%、和80.10%,TN在反应器运行第53天时去除率最高为76.75%。结果表明,藻菌共生提高了微藻的光合速率、生长速率以及污染物的去除效率,其效果优于小球藻处理系统。

In this study,the effects of chlorella and algal bioreactor on sewage purification and biomass accumulation were investigated by using the simulated oilfield wastewater in the laboratory.The experimental data showed that when the algal bioreactor is running for 25 days,the removal rates of COD,TP,and NH_(4)^(+)-N in simulated oilfield sewage are 44.23%,88.68%,and 85.01%,respectively,and the removal effect of TN is up to 80.99%when the reactor is running to 53 days.The removal rates of COD,TP,and NH_(4)^(+)-N in sewage were 35.45%,81.17%,and 80.10%on the 25th of the chlorella bioreactor operation,and the removal rate of TN was 76.75%on the 53rd day of reactor operation.The results showed that the symbiosis of algae increased the photosynthetic rate,growth rate,and pollutant removal efficiency of microalgae,and its effect was better than that of the chlorella treatment system.