AOSD智能化曝气控系统应用于AO工艺处理生活污水研究.docx 免费在线阅读

发布时间:2024-11-29 07:11

使用智能恒温系统与气候控制系统联动,更好地适应气候变化。 #生活技巧# #居家生活技巧# #节省能源技巧# #智能恒温系统#

AOSD智能化曝气控系统应用于AO工艺处理生活污水研究

优秀毕业论文 精品参考文献资料 眦-N 眦-N去除率影响显著,但对C-A/O系统眦-N去除率无显著影响;TN 去除率受进水眦-N浓度影响显著,尤其当进水m-N浓度为55 mg/L和 80 mg/L时,I-A/O系统对TN去除率分别比C.A/O系统高15.15%和22.87%, I-A/O系统内存在短程硝化反硝化:与C.A/O系统相比,I-A/O系统能够节 省鼓风曝气系统38%~55%的电耗。 (3)进水N】匿-N浓度对I-A/O系统TP去除率影响显著。当进水斌-N 浓度由35 mg/L升高到80 mg/L时,TP去除率由92.47%下降至69.44%。 I-A/O系统的除磷途径为,缺氧池内发生磷的释放和PHB合成,好氧池曝 气阶段发生好氧吸磷,不曝气阶段发生反硝化除磷,同时消耗大量PHB。 进水氨氮浓度升高使缺氧池内硝态氮浓度增大,从而磷的释放受到抑制, 最终导致系统TP去除率降低。 (4)通过调整混合液回流比和HRT运行参数,优化I-A/O系统的运行。 设置混合液回流比为200%、300%和400%,HRT为10 h、12 h和14 h,结 果表明在混合液回流比为200%,HRT为12 h时,I-A/O系统的运行较为优 化,能量消耗合理,各目标污染物的去除率都较高。 关键词:AOSD智能化曝气控制.4,/0工艺污水处理曝气节能脱氮 除磷 Ⅱ 万方数据 STUDY STUDY ON DOMESTIC WASTEⅥ么姗R TREAlwⅡlNT BY A/O PROCESS W删AOSD矾TELLIGENT AERAmN CONTRoL SYSTEM Sewage treatment belongs to the energy intensive industry,and the problems of high energy consumption and operating cost hinder the construction and operation of wastewater tremmem plant in China.The electricity consumption of aeration system accounts for 50%--60%ofwastewater treatment plant total electricity consumption,which is the key to energy saving of the whole plant.AOSD(automatic oxygen supply device)is a new kind of intelligent aeration control system,which is based on the changes of dissolved oxygen and temperature to automatically control the aeration time,and to save energy consumption of aeration utterly.A/O process is a kind of mature wastewater treatment process,and applying AOSD to A/O process is a novel process.Studying the novel process has important practical signific ance for improving the efficiency of wastewater treatment and reducing the treatment cost. In this study,AOSD was applied to A/O process,investigat ing the operation characteristics of intelligent aeration controlled A/O process(I-A/O) and continuous aeration A/O process(C-A/O)in treating sewage during start—up Ⅲ 万方数据 period, period,also investigating nitrogen and phosphorus removal performance of I-AgO under different influent NH:.N concentration,nitrated liquid reflux ratbs and hydraulic retention time

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