MBBR工艺提升催化剂污水装置生化系统处理能力的应用研究

Study on upgrading biochemical treatment of catalyst sewage treatment unit using MBBR process

应用MBBR工艺对某石化公司污水处理厂催化剂污水处理装置生化系统ABFT池进行升级改造,研究影响该工艺处理效果的主要因素,即温度、DO含量和污泥回流比.研究表明,实际运行中,温度20℃~30℃、DO 1~4mg/L、污泥回流比R≤3工况下,能取得较好的污染物去除效果.运行结果表明,改造后的污水处理工艺,生化系统的污水处理能力得到有效提升,处理量从100~120m3/h提升至200~260m3/h,出水水质稳定：COD≤60mg/L、氨氮≤5mg/L,能够满足新的排放标准.稳定运行下,COD和氨氮的去除率分别为85.97%和98.59%,证明MBBR工艺具有较好的脱氮效果,减少了外排污染物浓度和污泥产生量,节能减排效果良好.

The MBBR（Moving-Bed Biofilm Reactor） technology is used in upgrading biochemical treatment of catalyst sewage treatment unit of a petrochemical company in this paper, and the main factors influence the technology treatment effect, temperature,DO content and return sludge ratio are studied. The research shows that,by controlling temperature in 20 ℃ -30 ℃, DO in 1-4 mg/L,return sludge ratio R≤3 can obtain a better pollutants removal effects in actual operation. The results show that, the processing capacity of biochemical treatment is improved after transformation,the capacity changes from 100-120 m^3/h to 200 -260 m^3/h. The effluent water quality is stable and can meet the new emission standard, COD≤60 mg/L,NH3-N≤5 mg/L. The removal rates of COD and NH3-N are 85.97% and 98. 59%, so facts indicate that the application of MBBR technology in upgrading biochemical treatment of and emission effects, quantum of sludge catalyst sewage treatment unit has which can reduce the pollutants a good denitrification, energy saving concentrations of drainage and the