| 城市废水有机物生物降解性评价及难降解有机物治理对策 |
| 摘要点击 1332 全文点击 1315 修订日期：1993-06-12 |
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| 中文关键词 GC－MS 生物降解性 城市废水 难降解有机物 |
| 英文关键词 GC-MS biodegradability municipalwastewater refractory organics |
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| 中文摘要 |
| 采用GC-MS法对某城市废水中的有机物组分进行了分析,利用好氧生物降解一级动力学模型,计算了各单项有机物的一级反应速率常数Kb(20℃),在此基础上,讨论了各单项有机物的生物降解特性。结果表明,某城市废水处理厂曝气池进水中主要有机物有38种,出水中主要有机物有16种;废水中的主要难降解有机物为邻苯二甲酸二丁酯和邻苯二甲酸二异辛酯。应通过污染源控制或适当的预处理,加强其治理。 |
| 英文摘要 |
| The organic compounds in a municipal wastewater were analysed by using GC-MS method and the biodegradability of the organics was discussed by calculating the first order reaction rate constant Kσ(20℃) for each of the orgsnic compounds present in an aerobic biological treatment Process. The results showed that 38 and 16 kinds of main orgsnics exsisted in the in fluent and in the effluent,respectively, of the aeration tank in a munieipal sewage treatment plant. The main refractory organics were found to be dibutyl phthalate and diisooctyl phthalate. Their effective control should be made by strengthening the pollution management at sotirce or carrying out a pretreatment of wastewater before discharge into the public sewerage system. |
