一、概况近年来,由于鲁宁管道原油性质的变化和我厂原油加工量增大,加工深度加深。我厂污水处理场进口水质呈逐年恶化趋势,且水量亦不断增大。以污水场进口COD值为例,1982年年均542mg/L,1987年达到年均1059mg/L。相应,1982年污水场处理水量为107.5×10~4t,1987年达到144.6×10~4t。而且,长期以来,油品罐区,尤其是污油罐区和柴油罐区的间断切水,碱渣处理装置间 First, an overview In recent years, due to changes in the nature of pipeline pipeline crude oil and crude oil processing plant I increased processing depth deepening. The water quality of the imported sewage treatment plant in our factory shows a deteriorating trend year by year, and the water quantity also keeps on increasing. Taking the COD value of sewage farm as an example, the annual average of 1982 was 542mg / L, reaching an average of 1059mg / L in 1987. Correspondingly, in 1982, the treated water volume of wastewater treatment plant was 107.5 × 10 ~ 4t, reaching 144.6 × 10 ~ 4t in 1987. Moreover, for a long time, intermittent water cuts in the oil tank farm, especially in the waste tank farm and the diesel tank farm,