The given article is concerned about a renovated method of advanced treatment of vitamins-making pharmaceutical sewage developed by its authors known as acidification integrated anaerobic-flow-separated bio-bed-ozonation three-phase bio-fluid treating method.The so-called three phase of biofluid bed treating can be summarized as follows: First of all,we have to let the sewage pass through a hydrolytic acidification reaction cell,which accounts for the regulation of water quality and water quantity.It is for this purpose,the water entering the cell has to be purified and then the macromolecular and micro-molecule organic compounds were let to be decomposed with the biodegradability of the sewage improved.And then,when the purified sewage flew through the two reaction cells,that is,the hybrid anaerobic reaction cell and the flow-separating biological bed,the organic materials in the sewage would be split into pieces by microorganisms in the two reactors.The pollutant-removing rate should be accelerated in this stage.Thirdly,there will be an ozone oxidation system added to promote the decomposition of the residual refractory organisms and heighten the biodegradability,with which the organisms are to be degraded by the microbiological device in the three-phase bio-fluidized bed.Since the biodegradability of the sewage is poor by nature,it should get easily mixed with the rest part of sewage.But,it is possible to increase the biodegradability of the sewage by adding BOD/COD value from 0.05 to 0.18.In addition,the effluent of flow-separated biological bed can help to increase its COD removal from 14.7% to 43.4% prior to the mixture.Thus,the results of our pilot test prove that the process of hydrolysis pretreatment and the three-step ozonation bio-fluidized bed,when combined with the advanced treating technology,are expected to promote the biodegradability of the sewage and heighten the removing rate.Besides,since the hydrolysis phase is favorable for reducing its COD value with the average COD removing rate of 17.8%,it is also favorable for reducing its volatility.All these factors should contribute to increasing the average COD removing rate to 49.8% in the three ozonation-phase bio-fluidized bed.For the period of 20 d running,the COD concentration of the entire system remains below 50 mg/L,with NH+4N concentration being the lowest at a level of 0.25 mg/L.And,finally,the COD and NH+4N removing rate should be managed to reach about 80% and 90%.The effluent quality of COD and NH+4-N can be managed to achieve class A in the Discharge Standard of Pollutants for Urban Sewage Treating Plant(GB 18918—2002).So far as we can see,the treating method developed by us can not only heighten the biodegradability of the sewage,but is able to increase the removing rate of COD and ammonia nitrogen.

选择了海城地区生活污水、畜禽粪尿污染、精养鱼塘污染、化肥污染等几种主要污染源产生的CODcr、TP、TN和BOD5等,进行污染负荷量估算,计算各种污染物的"等标污染负荷"和"等标污染指数"等指标,确定了各区域的面源污染负荷和污染发生几率。充分了解了海城市各区域面源污染的情况及特点,对于制定控制海城市农业面源污染产生的管理策略、工程技术措施、产业结构调整等具有重要的理论意义和现实意义。