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The Research On Domestic Wastewater Treatment For Nutrient And Phosphor Removal Using MBR

Posted on:2008-01-20Degree:MasterType:Thesis
Country:ChinaCandidate:X J ZhaoFull Text:PDF
GTID:2121360272984600Subject:Environmental Engineering
Abstract/Summary:PDF Full Text Request
With water pollution issues becomes increasingly serious,nitrogen and phosphorus removal of sewage treatment becomes the hot research in this field. In recent years, as the MBR technology continues to mature, urban sewage recycling have been concerned. This study integrats the traditional technology (A~ 2 / O) and membrane technology which can remove the nitrogen and phosphorus stimulately.Because AAMBR process involves complex process, there are many factors which effects the nitrogen and phosphorus removal.It is difficult to choose the reseaonable process parameters to AAMBR to achieve the best effect.So it is significance to study MBR nitrogen and phosphorus removal technology and its impact factors .The goal of the study is to improveAAMBR process parameters mainly through long operation. Inspection AAMBR process on the various indicators of sewage treatment effects and optimizas the operating parameters .The inspection influent, the SRT, reflux ratio, and other settings on the impact of treatment effect will be studied later. Analysis the reactors changing along the way, deeps understanding of each reactor role and the relationship among. From a theoretical point to discuss AAMBR Reactor's capacity.The results show that in nitrogen and phosphorus removal process, the influent water affects the removal effect on the whole . The C / N ratio is 3.6,which can get the best effect. AAMBR reactor entirely suitable for low C / N of urban sewage, and can reduce the use of energy consumption. The temperature and control parameters is researched too.Inspection SRT changings impact on the system.,and get optimal control parameters through the research . The SRT setting should be 40 days, reflux ratio is set to 1:4,which should be the set of the best way.Through the material balance calculation, the reaction zone that all contributions to the removal of the indicators. The anoxic zone has not been fully utilized, so there reactor can achieve a better deal with the effects of the zone.
Keywords/Search Tags:MBR, nitrogen and phosphorus removal, denitrifying phosphorus removal, SRT, C/N ratio
PDF Full Text Request
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