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  • 闫森,丁艳萍,郑才林,廖邦友,宋光顺,陈军,卢金锁.污水管道危害性气体浓度分布模型扩展与验证[J].环境工程学报,2019,13(5):1228-1236.DOI:10.12030/j.cjee.201901063    [点击复制]
  • YAN Sen,DING Yanping,ZHENG Cailin,LIAO Bangyou,SONG Guangshun,CHEN Jun,LU Jinsuo.Extension and validation of the model of hazard gas concentration distribution in sewer[J].,2019,13(5):1228-1236.DOI:10.12030/j.cjee.201901063   [点击复制]
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污水管道危害性气体浓度分布模型扩展与验证
闫森1,丁艳萍2,郑才林3,廖邦友3,宋光顺4,陈军4,卢金锁1
0
(1.西安建筑科技大学,西北水资源与环境生态教育部重点实验室,西安 710055;2.西安建筑科技大学管理学院,西安 710055;3.安康市市政设施管理处,安康 725000;4.西安市政设计研究院有限公司,西安 710068)
摘要:
污水管道危害气体分布模型的建立对管道的维护管理具有重要意义。以SewerX模型为基础,将硫酸盐还原作为产生CO的主要生化过程,并入污水管道总生化反应体系,扩展SewerX模型,建立了污水管道内CO、H2S、CH4的浓度分布应用模型。将其应用到某市长度为4 100 m污水管道,管道危害气体浓度模拟结果与实测结果比对发现,浓度变化趋势一致,相关系数达到0.99以上,表明扩展模型具有实际应用价值。在一定设计流量下,可选择不同污水管道水力参数,应用扩展模型分析表明,合理选择参数可降低污水管道危害气体浓度。研究为污水管道内危害性气体浓度的预测提供参考。
关键词:  污水管道  一氧化碳  预测模型  水力参数
DOI:10.12030/j.cjee.201901063
投稿时间:2019-01-09
基金项目:国家自然科学基金资助项目51778523国家自然科学基金资助项目(51778523)
Extension and validation of the model of hazard gas concentration distribution in sewer
YAN Sen1,DING Yanping2,ZHENG Cailin3,LIAO Bangyou3,SONG Guangshun4,CHEN Jun4,LU Jinsuo1
(1.Key Laboratory of Northwest Water Resources, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China;2.School of Business and Management, Xi'an University of Architecture and Technology, Xi'an 710055, China;3.Ankang Municipal Facilities Management Office, Ankang 725000, China;4.Xi'an Municipal Engineering Design & Research Institute Co. Ltd. , Xi'an 710068, China)
Abstract:
The model of hazardous gas concentration distribution in sewer plays an important role in sewer maintenance. Based on SewerX model, sulfate reduction was selected as the main biochemical process of CO production and incorporated into the total biochemical reaction system in sewer. Then the SewerX model was extended and the model capable of predicting H2S, CH4 and CO concentration along sewer was built. The model was calibrated and validated based on a series of sewers (4 100 m total) in a city in China. It was found that the simulation results for the hazardous gas concentration presented the same trend with the measured results, and their correlation coefficient was over 0.99, which indicated that the developed model has practical application value. At a certain design flow rate, hydraulic parameters of sewer could be selected. The application of the extended model indicated that the hazardous gas concentration in sewer could be reduced when reasonable hydraulic parameters was selected. The study provides a reference for predicting the hazardous gas concentration in sewer.
Key words:  sewer  carbon monoxide  model prediction  hydraulic parameters