两种UASB+好氧组合工艺处理生活污水试验研究

Two UASB and Aerobic Combined Treatment of Domestic Wastewater

对UASB与跌水曝气和曝气生物滤池种组合工艺对生活污水的处理效果进行研究,并对跌水曝气和曝气生物滤池作为厌氧后处理的可行性作进一步的探讨。研究表明,UASB反应器在厌氧出水后加后续的好氧处理装置如跌水曝气和曝气生物滤池,能有效去除生活污水中的COD,与只用UASB反应器相比去除率分别提高了28.4%和44.1%,总平均去除率约90%。氨氮的浓度也降低,但去除率较低。因此,可以认为UASB厌氧反应器与好氧组合工艺处理生活污水是可行的。

The effect of treatment of domestic-sewage by UASB respectively combined with hydralic drop aeration and aeration biological filtration wastewater treatment process was studied,and the feasibility of post-processing was got further explored.The result showed that COD can be removed effectively by the treatment UASB combined with aerobic treatment,such as hydralic drop aeration and aeration biological filtration.The removal efficiencies of COD enhanced 28.4% and 44.1% when UASB respectively combined with hydralic drop aeration and aeration biological filtration,compared with only by UASB.The total average removal efficiencies reached about 90%.The concentration of NH＋4-N was reduced but low.So,the results showed that the effect of treatment of domestic-sewage by UASB combined with aerobic treatment was feasible.