| 臭氧氧化二级出水有机物可生化性研究 |
| 摘要点击 4022 全文点击 3643 投稿时间：2009-03-31 修订日期：2009-08-12 |
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| 中文关键词 臭氧 二级出水 有机物 三维荧光指纹光谱 |
| 英文关键词 ozone secondary effluent organic substance excitation-emission matrix(EEM) |
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| 中文摘要 |
| 通过臭氧氧化北京3个典型城市污水处理厂二级出水，考察臭氧对二级出水有机物可生化性的提高作用.采用批量试验方法，通过调整臭氧投加时间控制臭氧投加浓度为2、4、6、8、10 mg/L.结果表明，UV254与比紫外消光度SUVA(UV254/DOC)随臭氧投加量而降低，臭氧投加量为6 mg/L时，UV254与SUVA分别降低54.4%与56.6%以上；BOD5/COD、BDOC与BDOC/DOC分别提高30%、360%与36 |
| 英文摘要 |
| The secondary effluent of three WWTPs was treated by ozonation to investigate organic biodegradability enhancement. The bulk experimental method was used. Ozone adding dosage was controlled to be 2,4,6,8,10 mg/L by adjusting the adding time. Results showed,254 and SUVA(254/DOC)decreased with the increasing of the ozone dosage. When ozone adding dosage was 6 mg/L,254 and SUVA decreased about 54.4% and 56.6% respectively; while BOD5/COD,BDOC and BDOC/DOC were improved above 30%,360％ and 360％ respectively. It could be concluded that suitable ozonation could improve the biodegradation of the organic substances in the secondary effluent. The organic substance was analyzed by the excitation-emission matrix(EEM)to investigate the variation regularity of organic matter changes of the ozoned and non-ozoned secondary effluent. The main organic substances of the secondary effluent in the plant were aromatic protein like substances and humic substances,ozone could significantly remove these types of organic substance. |
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