Evaluation of RBC (Rotating Biological Contactor) Scale-Up,
Abstract
According to this investigation, when a full-scale RBC plant design is based on the essential controlling variables of influent soluble BOD concentration, wastewater temperature, number of disc stages, surface hydraulic loading, and % BOD removal requirement, the preliminary design criteria developed from pilot plant study cannot be directly employed for design. A scale-up factor should be used. This factor was successfully determined by the model proposed by Wu et al. Its relation to wastewater temperature was mathematically formulated by conducting non-linear least squares regression analysis on both full-scale and pilot-scale data previously reported by other investigators. It is apparent that the process scale-up increases from 1.067 at T = 3 C to 1.227 at T = 25 C. However, a decrease in the scale-up factor was found when the temperature exceeded 25 C. This study shows the effect of process scale-up on the selection of hydraulic loading for full-scale design is significant when the wastewater temperature and hydraulic loading determined during the pilot study are high.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1982
- Accession Number
- ADP000747
Entities
People
- Chiu Y. Chen
- Ed. D. Smith
- Roy Miller
- Yeun C. Wu
Organizations
- University of Pittsburgh