| 生物滤池工艺的数值模拟与运行优化 |
| 摘要点击 2621 全文点击 1320 投稿时间：2014-05-20 修订日期：2014-07-28 |
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| 中文关键词 生物滤池 数值模拟 灵敏度分析 模型校正 模型验证 运行优化 |
| 英文关键词 biological filter numerical simulation sensitivity analysis model calibration model validation operation optimization |
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| 中文摘要 |
| 以筼筜污水处理厂生物滤池工艺（DNBF+BAF）为研究对象，应用BioWin软件，构建该工艺的BioWin模型，基于2013年9月和10月的实际运行数据，结合两种灵敏度分析方法，对BioWin模型进行校正.结果表明，校正模型可对DNBF+BAF工艺进行有效模拟，且对该工艺的BioWin模拟结果影响最为显著的3类参数为：与生物膜有关的参数、与异养菌（OHOs）有关的参数和曝气参数.然后应用校正模型模拟该工艺在不同工况条件下的运行结果，对其进行工艺优化.结果表明：1一级B排放标准的最佳运行条件为：回流比=50%，取消甲醇投加，此时进水C/N=4.43；2一级A排放标准的最佳运行条件为：回流比=50%，投加甲醇后的进水COD=155mg·L-1，此时进水C/N=5.10. |
| 英文摘要 |
| BioWin software and two sensitivity analysis methods were used to simulate the Denitrification Biological Filter (DNBF)+Biological Aerated Filter (BAF) process in Yuandang Wastewater Treatment Plant. Based on the BioWin model of DNBF+BAF process, the operation data of September 2013 were used for sensitivity analysis and model calibration, and the operation data of October 2013 were used for model validation. The results indicated that the calibrated model could accurately simulate practical DNBF+BAF processes, and the most sensitive parameters were the parameters related to biofilm, OHOs and aeration. After the validation and calibration of model, it was used for process optimization with simulating operation results under different conditions. The results showed that, the best operation condition for discharge standard B was: reflux ratio=50%, ceasing methanol addition, influent C/N=4.43; while the best operation condition for discharge standard A was: reflux ratio=50%, influent COD=155mg·L-1 after methanol addition, influent C/N=5.10. |
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