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Nutrient removal in intermittent activated sludge process | |
Author | Lee, Kauk Pein |
Call Number | AIT Thesis no.EV-87-6 |
Subject(s) | Sewage--Purification--Activated sludge process |
Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
Publisher | Asian Institute of Technology |
Abstract | Potential 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 substrate. Three different operating strategies were applied in order to find the potential of nitrogen and phosphorus r mova1. Different duration of anoxic/ anaerobic. anoxic nd aerobic phases were applied in three reactors of each strategy. Based on the results from this study. nitrifying bacteria were able to survive and also gave satisfactory performance under the sequence of anoxic - aerobic environment. Applying sequence of anoxic - aerobic phases in the reactor during long period of substrate feeding can get the relatively high nitrogen removal efficiency. Nitrogen removal by endogenous denitrification also play significant role in the strategy where short feeding period was used. Biological phosphorus removal, so called "luxury uptake". was not observed in this study. High removal (95 - 99%> of TOC w maintained in all three strategies of intermittent activated sludge process. |
Year | 1987 |
Type | Thesis |
School | School of Environment, Resources, and Development (SERD) |
Department | Other Field of Studies (No Department) |
Academic Program/FoS | Environmental Engineering and Management (EV) |
Chairperson(s) | Hanaki, K. |
Examination Committee(s) | Orth, H.M. ;Shin, H.S. |
Scholarship Donor(s) | French Government |
Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1987 |