MOVING BED BIOFILM REACTOR (MBBR)

1. Operating principle

The essence of MBBR technology is a CAS/AAO/AO process with the addition of moving carriers. The moving carriers increase the surface area on which microorganisms can attach, which significantly raises the MLSS concentration. The higher the MLSS concentration, the smaller the area required to build the treatment system.

2. Advantages

• Smaller footprint than CAS and AAO technology
• Moving carriers move with the flow of the wastewater, which gives better mixing, increases the contact time between microorganisms and wastewater, and improves treatment efficiency.
• Produces less excess sludge than CAS, because anaerobic and anoxic microorganisms help remove BOD more completely.
• Effluent quality can meet Class A or B standards, depending on the design.

3. Disadvantages

• Effluent quality depends on the settleability of the sludge and the size of the tank. To keep the treated water quality good and reduce fluctuations, a large construction area is needed.
• Effluent quality may be unstable, because sludge settling depends on many factors such as temperature, MLSS concentration, and the organic and hydraulic loading of the influent wastewater.
• A large construction area is still required
• Disinfection chemicals are required

Businesses interested in MBBR moving carrier technology are welcome to contact NGO on +84 24 7300 0890 or by email at office@8ngo.com for direct consultation.

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