02110nas a2200241   450000500170000000800410001703500150005810000190007324500620009226000520015430000100020649000260021650001440024250200580038652011010044465000510154570000290159670000390162570000390166471000420170381000580174585600650180320260818170321.0011298s1987    th      r     000| 0eng d  a.b104718811 aLee, Kauk Pein10aNutrient removal in intermittent activated sludge process  aBangkok :bAsian Institute of Technology,c1987  a64 p.1 aThesis ;vno. EV-87-6  aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology  aThesis (M.Eng.) - Asian Institute of Technology, 1987  aPotential of nutrient removal in Intermittent Activated  Sludge Process w s studied with three laboratory - scale reactors  by using synthetic wastewater containing organic matter and  am onia as sub tr te. Three difrerent oper ting strategies were  applied in order to find the potential of nitrogen and  phosphorus r mova1. Different duration of anoxic/ naerobic.  anoxic nd aerobic phases were applied in three reactors of each  strategy. Based on the results fro this study. nitrifying  b ct ri w re able to urvive and a1 0 gav satisfactory  perform nce under th equence of anoxic - aerobic environment.  Applying sequence of noxic - aerobic ph ses in the reactor  during long period of substrate fe ding can get the relatively  high nitrogen re ov 1 efficiency. Nitrogen removal by endogenous  denitrification lso play significant role in the strategy  where short feeding period was used. Biological phosphorus  removal, so called "luxury uptake". was not ob rved in this study. High removal (95 - 99%> of TOC w maintained in all  three str tegies of inter ittent activated sludge process.  0aSewagexPurificationxActivated sludge process1 aHanaki, K.,eChairperson1 aOrth, H.M.,eExamination Committee1 aShin, H.S.,eExamination Committee2 aFrench Government,eScholarship Donor2 aAsian Institute of Technology.tThesis ;vno. EV-87-6  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B19200