Q. Which of the following technologies can be used for sewage treatment?
- Membrane Bioreactor
- Moving Bed Biofilm Reactor
- Sequencing Batch Reactor
Chose the correct answer from the codes given below:
Answer:
1, 2 & 3
Notes: All of the options listed (1. Membrane Bioreactor, 2. Moving Bed Biofilm Reactor, 3. Sequencing Batch Reactor) can be used for sewage treatment. These technologies are commonly employed in wastewater treatment plants to remove contaminants from sewage and produce treated water that can be safely discharged or reused.
- Membrane Bioreactor (MBR): MBR combines a biological process (bioreactor) with membrane filtration. The bioreactor utilizes microorganisms to break down organic matter in the sewage, and the membrane filtration process helps in separating solids and bacteria from the treated water. MBR is known for its high treatment efficiency and compact design.
- Moving Bed Biofilm Reactor (MBBR): MBBR is a biological treatment process that utilizes a bed of small plastic media carriers on which microorganisms grow and form a biofilm. As the sewage flows through the reactor, the microorganisms in the biofilm help to biodegrade organic pollutants. MBBR is effective in treating both organic matter and nitrogen compounds.
- Sequencing Batch Reactor (SBR): SBR is a type of wastewater treatment process in which sewage is added to a reactor in batches and undergoes different treatment stages in a sequential manner. It includes periods of aeration, settling, and decanting, allowing for biological processes and solid-liquid separation to take place within the same tank.
These technologies offer various advantages and can be tailored to meet specific treatment requirements, making them suitable for different types and sizes of wastewater treatment facilities.