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Rotating biological contactors (RBC) - Coggle Diagram
Rotating biological contactors (RBC)
https://www.youtube.com/watch?v=-V0P0nYy0Zs&list=PLhypIwcxk_o_pwe7i8bsPSEFAcZ-qtcky&ab_channel=LackebyProductsAB
https://www.youtube.com/watch?v=nKIdKpw0SDw&ab_channel=MITAGroup
INTRODUCTION
RBC units are suitable where land is restricted. They are quite and consistently produce a high quality effluent.
Rotating Biological Contactors (RBCs) are mechanical secondary treatment system
Primary treatment removes coarse particles and grit from sewage before it enters a facility. After that, the sewage travels through one or more RBC units, which have been built in a variety of layouts in the past.
Microorganisms require both oxygen and food to survive and develop. As the discs rotate, oxygen is drawn from the environment.
The revolving discs encourage the growth of bacteria and microorganisms that break down and stabilise organic contaminants in the sewage.
ADVANTAGES & DISADVANTAGES
ADVANTAGES
High process stability, resistant to shock hydraulic or organic loading :check:
Short contact periods are required because of the large active surface :check:
Process is relatively silent compared to dosing pumps for aeration :check:
Low space requirement :check:
DISADVANTAGES
Must be protected against sunlight, wind and rain :green_cross:
Requires permanent skilled technical labour for operation and maintenance :green_cross:
Continuous electricity supply required (but uses less energy than trickling filters or activated sludge processes for comparable degradation rates) :green_cross:
High investment as well as operation and maintenance costs :green_cross:
Purpose of RBC Sewerage
The major goal is to use the Attached Growth Process to remove organic waste from wastewater.
They provide media for a build-up of attached microbial growth
3.brings the growth of microbes in contact with the wastewate
4.They aerate the wastewater and suspended microbial growth in the wastewater tank
PROCESS
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Sewage will travel through one or more RBC units, which will be built according to a variety of layouts.
A initial treatment will be performed on any influen that enters the facility, in which coarse particles and small stones will be removed.
Each unit has a serial round disk . In a state of partial immersion in sewage while slowly rotating through it
The bacteria and germs in the sewage will develop on the rotating disc.
Microorganisms need food and oxygen for life and growth
Oxygen is found from the atmosphere when the discs rotate
With the growth of the microorganism, it will grow on the media until it is removed during the rotation process by the rotating discs in the sewage.
