高盐度污水生物处理技术研究

广西涠洲石油终端处理厂污水Cl 浓度在 110 0 0～ 12 0 0 0mg L ,平均为 113480mg L ,CODCr约为 15 0～ 4 0 0mg L ,属高盐度污水。通过对微生物进行驯化 ,仍可以用生化法处理。研究表明 :单一的厌氧生化法和好氧生化法处理污水均不能达标 ,而厌氧 好氧联合处理效果良好 ,出水水质稳定 ,出水CODCr为 14～ 6 7mg L ,可达到国家污水排放一级标准

STUDY ON BIOLIGICAL TREATMENT PROCESS OF HIGH SALINITY WASTEWATER

The wastewater discharged from Weizhou Terminal Disposal Plant,Guangxi,with Cl -of 11 000～12 000 mg/L, 113 480 mg/L on average;COD Cr of 150～400 mg/L,is a typical wastewater of high salinity.The wastewater can be biologically treated after acclimation of the activated sludge.It is shown that the COD Cr can't reach the discharge standard of National Wastewater Discharge Standard (NWDS) with either anaerobic treatment or aerobic biological treatment,but the effect of the combination of the two methods is much better.The quality of the effuent is stable and the COD Cr ranges from 14 mg/L to 67 mg/L,which can satisfy the first class in NWDS.