CAJ | 학술논문

采用中试装置研究了臭氧—生物活性炭工艺对长江南京段微污染原水中有机物去除的特性，考察了臭氧投加量和臭氧接触时间对臭氧氧化、生物活性炭单元中DOC、BDOC、CODMn、UV254和微量有机污染物去除的影响。结果表明臭氧投加量为2 mg／L、臭氧停留时间为10 min时，臭氧氧化单元CODMn和UV254的去除率分别达到18．8％和47．5％，DOC和BDOC分别增长了30．3％和128．2％，生物活性炭滤柱对四种污染物指标的去除率分别为37．7％、88．7％、60．7％和37．7％。各单元在适宜工况下运行时，整个工艺对1，2，4三氯苯、氯代苯、DMP、DBP和PAHs的总去除率分别为46．7％、100％、70．5％、52.5％和69．2％，高于常规处理工艺和生物强化滤池工艺。臭氧—生物活性炭工艺有效提高了有机污染物的去除效果，可保障出水水质安全。
채용중시장치연구료취양—생물활성탄공예대장강남경단미오염원수중유궤물거제적특성，고찰료취양투가량화취양접촉시간대취양양화、생물활성탄단원중DOC、BDOC、CODMn、UV254화미량유궤오염물거제적영향。결과표명취양투가량위2 mg／L、취양정류시간위10 min시，취양양화단원CODMn화UV254적거제솔분별체도18．8％화47．5％，DOC화BDOC분별증장료30．3％화128．2％，생물활성탄려주대사충오염물지표적거제솔분별위37．7％、88．7％、60．7％화37．7％。각단원재괄의공황하운행시，정개공예대1，2，4삼록분、록대분、DMP、DBP화PAHs적총거제솔분별위46．7％、100％、70．5％、52.5％화69．2％，고우상규처리공예화생물강화려지공예。취양—생물활성탄공예유효제고료유궤오염물적거제효과，가보장출수수질안전。
In view of the Yangtze River in Nanjing section, the pilot plant was used to study the removal characteristics of organics by the technology of O3 BAC, and the removal effect of organic matters was investigated under the condition of different dosage of ozone and ozone contact time.The results show that when ozone dosage is 2 mg/L, and the ozone contact time is 10 min, the removal rates of CODMn , UV254 are 18.8%, 47.5%while DOC, BDOC increase by 30.3% and 128.2% in the ozonation unit; the removal rates of four indexes reach 37.7%, 88.7%, 60.7% and 37.7% in the BAC column.The removal rates of 1,2,4 trichlorobenzene, chlorinated benzene, DMP, DBP and PAHs are 46.7%, 100%, 70.5%, 52.5%and 69.2%, respectively in the O3 BAC process, higher than that of conventional treatment process and biological enhanced aerated filter process.Therefore, the O3 BAC process can not only effectively improve the removal efficiency of organic pollutants, but also can ensure the water quality security.