摘要
对用UBF生物铁反应器处理高浓度印染废水时的运行参数进行了试验研究.结果表明,当进水ρ(CODCr)为1500mg/L左右,色度为400～600倍,pH值为8 0～9 0,控制水温为28～32℃,UBF反应器的HRT>24 0h时,适宜的ρ(Fe2+)为9 0～10 0mg/L.在此情况下,UBF反应器的CODCr去除率为53 74%、色度去除率为76%～80%,与不投加铁离子时相比,CODCr去除率提高了20%～30%,同时厌氧段出水pH值为7 5;厌氧UBF生物接触氧化工艺的CODCr总去除率为79 41%、色度总去除率为84%～88%.
An experimental study was performed on the operating parameters for the process of dyeing wastewater treatment. The experiment was carried out under the following conditions: the concentration of COD_(Cr) in the incoming flow was around 1500mg/L, the chroma, pH value and water temperature were in the range of 400-600?times, 8.0-9.0, and 28-32℃, respectively, and the HRT of the Upflow Baffled Filter(UBF) was more than 24.0h. Under such conditions, the optimal concentration of Fe^(2+) was derived, i.e. 9.0-10.0?mg/L. The result showed that the COD_(Cr) removal rate of UBF could reach 53.74%, which was raised by 20%-30% compared with the value in the absence of any iron ions, the chroma removal rate could be increased to 76%-80%, and the pH value of effluent was 7.5. It was also indicated that the total COD_(Cr) removal rate by the anaerobic UBF-biological contact oxidation technique could reach 79.41%, and the total chroma removal rate could reach 84%-88%.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
北大核心
2005年第1期52-54,共3页
Journal of Hohai University(Natural Sciences)
关键词
印染废水
UBF反应器
生物铁
dyeing wastewater
Upflow Baffled Filter (UBF)
biologic iron
