Study On The Denitrifying Water Water In SBBR With Adding Biom^TM Carriers

As we all know the solution of nitrogen and phosphorus removal is the eutrophicationresearch focus problem,while to enforce the effluent indexex met the first class A standard of thepresent “Pollutant Discharge Standard of Urban Sewage Treatment Plant”（GB18918-2002）.Because of new process SBBR is not only effective,but also infrastructure,lowoperating costs,making become the focus of research.The test is mainly for treating domesticwastewater in SBBR by adding Biom^TM microbial membrane carrier filler, to providepractical techniques about removal of nitrogen and phosphorous.The test device is made by the glass,the total volume is9.5L,packing filler as Biom^TMmicrobial membrane carrier,a lab-scale experiment is conducted using domestic sewage asinfluent,researching the different system of hanging membrane start-up,the result of waste waterabout anaerobic,aerobic and anoxic,the environmental factors how to effect the runningprocesses in anaerobic and aerobic of SBBR,after,I try to improve operating processanaerobic-aerobic-anoxic to see the result of the sewage treatment affect and finally theintroduction of real-life water verify the treatment effect.By researching two different start-up mode that biofilm sequencing batch and continuous,Ifound the advantages and disadvantages of biofilm starts in different ways,but the samedisadvantages is the nitrogen and phosphorus removal,because of two different operating modeout of the bacterial culture is not the same..The removal rate of COD and TN is80%and50%bycontinuous biofilm start,while the sequencing batch biofilm is75%and40%.With thesequencing batch biofilm run the same way as the conventional activated sludge process at thisstage of removal of COD and TN is70%and40%. Efficiency for the comprehensivecomparison,the dosing biomTM microbial membrane carrier packing SBBR the sequencingbatch biofilm start to run the best.By researching the best filling rate and determining the best time of anaerobic andaerobic,the optimal operating conditions for SBBR determination.The optimal conditions of thistest is anaerobic2h and aerobic4h..After study of the DO.ph.temeperature.C/N.C/P of theoptimal conditions for SBBR in effect on the nitrogen and phosphorous removal,the result whenDO is2.5-4mg/L,PH is7.5-8.5,C/N is9-12,C/P is16-22is good.,but the effluent indexex can notmet the first class A standard of the present “Pollutant Discharge Standard of Urban SewageTreatment Plant”（GB18918-2002）.In order to make the discharge of nitrogen and phosphorus toimprove the running SBBR conditions,increase in the aerobic stage for some anaerobic stage,Bycomparing the results of nitrogen and phosphors removal,determing the optimal the optimalanaerobic anoxic aerobic best time to finally arrive at the best operating conditions for theanaerobic（1.5h）-aerobic（2h）-hypoxia（2h）.Based on the concleded of simulate wastewater,at lastthe test introduced the real-life,running ten days,the operating conditions of nirtrogen andphosphorous removal works well,going to the actual water to meet emission standards.Experimental studies suggest that the microbial membrane carrier dosing Biom^TM SBBRpacking process in the anaerobic/aerobic/anoxic conditions on the operation of sewagenitrogen and phosphorus removal with good results, with use value.