摘要
利用悬挂式软性纤维填料制备了生物接触氧化塔,并对生活小区污水进行处理,三个月的试验结果,表明:在HRT=3h的条件下,当原水COD在300～400mg/L,氨氮在30～80mg/L范围时,出水氨氮<1mg/L、COD<50mg/L、SS<15mg/L,此时,系统硝化负荷最高达0.50kg/(m3·d)有机负荷最高达3.2kg/(m3·d)。由实验结果得出,HRT为1.5h,在有机负荷2kg/(m3·d)时,水力负荷是影响硝化的关键因素。
Bio-contact oxidation tower with hanging fibre media was used to treat the wastewater of a residential district. When HRT is 3h,COD is between 300 and 400 mg/L and NH3-N between 30 and 80mg/L in the influene,after treatment COD decreased to 50mg/L,NH3-N〈1mg/L and S〈15mg/L in the efluent in case of maximal nitrogen load 0.5kg/（m^3 · d ）and maximal organic load 3.2kg/（m^3 · d）. The results showed when organic load 2.0kg/（m^3 · d） ,the hydraulic load is the key factor for nitrofication,and HRT must be greater than 1.5h.
出处
《净水技术》
CAS
2005年第4期28-30,共3页
Water Purification Technology
