改性玉米芯强化CASS系统除磷试验研究

摘要

吸附法具有吸附容量大、能量消耗少、污染小、吸附速度快和可循环再生等优点,在废水除磷领域有广泛的应用前景.在CASS系统中通过对改性玉米芯、活性污泥及二者混合处理废水的对比试验,结果表明,二者混合后对COD和TP的处理效果要明显高于改性玉米芯和活性污泥分别单独存在时,COD的去除率可分别提高34％和18％,TP的去除率可分别提高38％和7％,并且可缩短反应时间.在CASS反应器中添加改性玉米芯可提高废水的除磷效果,具有一定的可行性.%The advantages of adsorption are as follows:high capacity,low energy consumption,low pollution,rapid removal,and can be circulated.Based on modified corn cobs,activated sludge wastewater treatment and the combination of contrast test in CASS,the results show that the combination of COD and TP removal efficiency,activated carbon and activated sludge were significantly higher than exist alone,COD removal rate can be increased by 34％ and 18％ respectively,and TP removal rate can be increased by 38％ and 7％ respectively,and can shorten the reaction time.The effect of wasterwater treatment can be improved by modified corn cobs joint activated sludge,and has certain feasibility.