| 加压上流式好氧污泥床(PUASB)法处理制药废水初探 |
| 摘要点击 801 全文点击 1519 投稿时间：1998-12-07 |
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| 中文关键词 加压上流式好氧污泥床 制药废水 溶解氧 停留时间 废水处理 |
| 英文关键词 pressured upflow aerobic sludge bed pharmaceutical wastewater dissolved oxygen retention time wastewater treatment |
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| 中文摘要 |
| 在进水COD为500-600mg/L、压力p=0.2MPa、回/流比R=6条件下,加压上流式好氧污泥床平均COD去除率为71%,出水基本达到国家排放标准(100mg/L);进水COD为1000mg/L以上,在p=0.3MPa、R=6条件下,COD去除率仍可达到70%左右。实验发现,压力p=0.3MPa时最佳BODs容积负荷为20kg·(m3·d)-1左右,进水COD大于1000mg/L,压力p=0.4MPa时最佳回流比为9,最短停留时间可达到15.4min.停留时间和容积负荷分别为传统活性污泥法的1/10-1/20和10倍以上,可大大节约占地面积。 |
| 英文摘要 |
| When the influent COD of pharmaceutical wastewater was in the range of 500—600mg/L,effluent through Pressured Upflow Aerobic Sludge Bed (PUASB) can attain the national emission standard under the operation condition of surface pressure (p) 0.2MPa,return ratio(R)6.Even if influent COD was more than 1000mg/L,the COD removal rate was near to 70% ander p=0.3MPa.Results also showed that the optimal BOD volume load is about 20kg·(m3·d)-1 with the pressure 0.3MPa,the optimal return ratio is 9 and the lowest retention time reaches 15.4 min with the pressure 0.4MPa and influent COD more than 1000mg/L.The lowest time is only 1/10—1/20 times and BOD volume load is about 10 times as much as traditional activated sludge process,and the land use is reduced greatly. |
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