Nitrogen removal by secondary algal stripping pond in the reclamation of potable water from wastewater

AuthorPak-shing, Cheung
Call NumberAIT Thesis no. 633
Subject(s)Water reuse
Water--Purification
Oxidation
NoteA thesis submitted-in partial fulfillment of the requirements for the degree of Master of Engineering in the Asian Institute of Technology, Bangkok, Thailand.
PublisherAsian Institute of Technology
AbstractIn this research secondary oxidation ponds, at pilot scale, were investigated for the removal of nitrogen in the reclamation of potable water from wastewater. The parameters studied were pond depth, detention time and level of nutrient supplementation (iron and phosphorus). These parameters were optimized with respect to nitrogen removal efficiency, and the following optimum conditions were obtained: 25 cm pond depth, 2-day detention time , 5 mg/l of phosphorus and 2 mg/l of iron supplementation. The average effluent total-N and ammonia-nitrogen were found to be 5.9 mg/l and 3.45 mg/l respectively, corresponding to average removal efficiencies of 73.3% and 83.1%. Equation correlating the influent and effluent NH3-N, Org-N and total-N, and, influent NH3-N and algal-N produced were also formulated by regression equations. A Kinetic model for NH3-N uptake was developed for the system.
Year1974
TypeThesis
SchoolStudent Research Before 1980
DepartmentOther Field of Studies (No Department)
Academic Program/FoSThesis (Year <=1979)
Chairperson(s)Pescod, M.B. ; Yang, Yi Ping
Examination Committee(s)Mcgarry, M.G. ;Htun, Maung Nay
Scholarship Donor(s)Asian Institute of Technology
DegreeThesis (M. Eng.) - Asian Institute of Technology, 1974


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