The New Jersey Institute of Technology's
Electronic Theses & Dissertations Project

Title:	A study of biological dentrification of munition wastes
Author:	Venugopal, Sonia R.
View Online:	njit-etd1991-063 ([vii], 63 pages ~ 1.2 MB pdf)
Department:	Department of Chemical Engineering, Chemistry and Environmental Science
Degree:	Master of Science
Program:	Chemical Engineering
Document Type:	Thesis
Advisory Committee:	Baltzis, Basil (Committee co-chair) Lewandowski, Gordon (Committee co-chair) Armenante, Piero M. (Committee member)
Date:	1991
Keywords:	Dentrification Sewage -- Purification -- Nitrogen removal Nitroguanidine
Availability:	Unrestricted
Abstract:	Kinetics of denitrification were studied using a consortium from the Lawrence, Kansas municipal treatment plant. Experiments were conducted in the batch mode, under controlled oxygen and pH conditions. It was found that the Monod model can successfully perdict the experimental results of nitrate depletion. It was also found that when the pH is maintained at values between 7.0 and 8.5, nitrate can be treated in a batch mode without having any significant nitrite presence in the reactor. The experimentally determined kinetic parameters were used in preliminary calculations for sizing a sequencing batch reactor (SBR). An existing mathematical model for the SBR was slightly modified for the calculations. Due to the slow rates of nitrate depletion, high biomass concentrations should be maintained in the unit in order to achieve effluent quality from a reactor of reasonable size.