A Scale-up Design Procedure for Rotating Biological Contactors

Reconsidering Rotating Biological Contactors

There are many domestic wastewater treatment processes in use today. Generally, they are all biological systems and they may be broadly categorized as either fixed film processes or suspended growth processes. During the 1970s and early 1980s, the rotating biological contactor process (RBC), a particularly efficient fixed film process, became popular. However, the primary manufacturer of RBCs i...

Effect of glutaraldehyde biocide on laboratory-scale rotating biological contactors and biocide efficacy

The effect of glutaraldehyde, a commercial biocide widely used in paper and pulp industry, on the performance of laboratory-scale rotating biological contactors (RBCs) as well as biocide efficacy was studied. Biofilms were established on the RBCs and then exposed to 0 180 ppm glutaraldehyde at a dilution rate of 1.60 h. The results showed that the biofilms became acclimated to glutaraldehyde an...

Scale-up and Design Parameters Investigation on Rotating Drum Bioreactors

Scale-up and design parameters have been investigated in 5 liters rotating drum bioreactors. System applies for animal feed production from cassava waste material using solid-state fermentation. The course of fermentation was 96 hours and all parameters related to microbial growth were measured every 12 hours namely glucosamine content, %urea, %protein, % carbohydrate, and %fat. The solid was t...

Municipal Wastewater Treatment With Rotating Biological Contactors A review of factors influencing the efficiency of RBCs

Rotating biological contactors (RBCs) constitute a very unique and superior alternative for biodegradable matter and nitrogen removal on account of their feasibility, simplicity of design and operation, low land area requirement, low energy consumption, low operating and maintenance cost and treatment efficiency. The present review of RBCs focus on parameters that affect performance like rotati...

Scale-up Strategies for Membrane-Based Desalination Processes: A Review

Membrane-based technologies have increasingly been chosen in desalination processes, which is evidenced by the increase of large-scale plants constructed in recent years. Indeed, several appropriate strategies should be considered to minimize problems faced during the construction, such as membrane system designs, area requirement, energy requirement, operation and maintenance, and environmenta...

A Procedure for Design of the Axial Flow Fans