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研究论文

Conception development and relevant relationship establishment of the (F/M) ratio in activated sludge wastewater treatment technology

基金项目：国家自然科学基金项目(20077006、50179011、70171055);国家杰出青年科学基金(50225926);2000年教育部高等学校优秀青年教师教学科研奖励计划资助项目;国家863高技术研究项目(No.20.01AA644020)

摘要：在活性污泥污水处理工艺中原有的进水F/M比(即f_i)概念的基础上, 首次引入了出水F/M比(即f_e)、进出水FM比减少量(即-Δf)和复合半饱和常数K_fs等概念, 由此建立了F/M比(包括f_i、f_e和-Δf)与曝气池主要运行参数及性能指标之间的相关定性定量关系, 以及f_e随时间变化的动态定量关系.采用真实的污水厂的数据, 对相关关系的合理性进行了验证, 并用灵敏度分析证明了f_e较优地反映了曝气池运行状况.

Abstract：Based on the traditional concept of the influent F/M ratio （ f_i) in the activated sludge wastewater treatment technology, some novel terms, such as the effluent F/M ratio （f_e）, the process decrease of F/M ratio （-Δf) and the compound half saturation coefficient (K_fs) etc. were introduced in this paper. The quantitative relationships between the F/M ratio （including f_i, f_e and-Δf） and main operation parameters of the aeration tank, the dynamic quantitative change of f_e along with the time, and the correlations between the F/M ratio and main performance indexes of the aeration tank were therefore set up or discussed. Using real data from a municipal wastewater treatment plant report, the rationality of relevant relationships were validated and it is proved that the f_e can be used for measuring wastewater treatment plant operation condition more sensitively than other monitoring indexes.