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

Title:	Disc size scale-up in rotating biological contactor system
Author:	Chang, Chi-Sheng
View Online:	njit-etd1991-084 ([vi], 148 pages ~ 2.9 MB pdf)
Department:	Department of Civil and Environmental Engineering
Degree:	Master of Science
Program:	Environmental Engineering
Document Type:	Thesis
Advisory Committee:	Wu, Yeun C. (Committee chair) Cheremisinoff, Paul N. (Committee member)
Date:	1991-10
Keywords:	Sewage -- Purification -- Rotating disc process -- Mathematical models Sewage -- Purification -- Rotating disc process -- Data processing
Availability:	Unrestricted
Abstract:	Disc size scale-up of prototype and small-scale RBC plants are successfully developed by applying the 114 data sets obtained from 12 RBC plants to the evaluation of percent sBOD remaining. These data analyses are performed by the least square method, therefore, the scale-up factors of the prototype and the small-scale are determined at different hydraulic loading. Furthermore, the relationship between scale-up factor and the disc diameter are established under the given flow rate, the number of stages, and the number of discs. A group of Curves are obtained and can be utilized for the full-scale RBC plant preliminary design. The overall calculations are preformed by the computer program.