分段进水A/O工艺流量分配专家系统的建立与应用  

Establishment and application of influent flow distribution expert system in step-feed A/O process

作　　者：王伟[1] 王淑莹[1] 孙亚男[1] 彭永臻[1] 

机构地区：[1]北京工业大学北京市水质科学与水环境恢复重点实验室,北京100022

出　　处：《化工学报》2008年第10期2608-2615,共8页CIESC Journal

基　　金：国家高技术研究发展计划项目(2006AA06Z319);北京市教委科研基地-科技创新平台项目;高等学校博士学科点专项科研基金项目(20060005002)~~

摘　　要：分段进水A/O工艺中,进水流量分配是重要控制参数,是该工艺稳定运行并发挥优势的关键。本文提出3种流量分配思想:等负荷流量分配法、流量分配系数法及末端集中进水,并根据实际生活污水进行试验得出的大量试验数据,辅以相关领域文献及污水处理领域专家的经验作为参考,建立分段进水A/O工艺流量分配专家决策系统。该专家系统可以根据不同的进水水量、水质及出水特点,对合适的流量分配方法进行决策。最后,针对实际污水处理厂一天内典型的水质水量变化情况,对专家系统的应用进行说明。In the step-feed anoxic/oxic （A/O） process, influent flow distribution ratio is a crucial control parameter, which promises steady operation of the system and dominates this process. Three different influent flow distribution methods proposed in this paper include： （i） same F/M ratio to nitrifiers; （ii） optimal coefficient and （iii） voluminous influent at the end of system. Based on the distribution methods presented above, a technically feasible and economically favorable expert control system of flow distribution was established on the basis of the data obtained from a pilot-scale domestic wastewater treatment system. The related information from literature and the knowledge of human experts acquired through years of experience were also incorporated. The suggested influent flow distribution method defined by expert system is directly decided by influent loading and raw wastewater characteristics, as well as effluent quality. Finally, the application of this expert system was illustrated by using one day＇s data from a real plant, which represents the typical changes of influent flows and wastewater characteristics.

关 键 词：污水 生物脱氮 分段进水 流量分配 专家系统 

分 类 号：X703.1[环境科学与工程—环境工程]