(Moving Bed Biofilm Reactor)

The AGAR® (Attached Growth Airlift Reactor) technology, is a proprietary process that uses biofilm grown on carrier media to degrade soluble pollutants in wastewater. The AGAR® technology has been implemented successfully in many wastewater treatment plants globally. The AGAR® MBBR (Moving Bed Biofilm Reactor) is a single-through process that utilizes our ABC carriers with an efficient aeration and mixing system. The AGAR® MBBR eliminates the need to recycle sludge from a secondary clarifier and can be divided into multiple stages, hence increasing removal rates and reducing the plant footprint. It is suitable for both high-load industrial and municipal applications.

The AGAR® MBBR features a strong and efficient biological process with high removal rates, up to 50% smaller footprint, less air requirement, and COD/BOD/nitrogen removal. Fine or coarse bubble diffusers are used for aeration. It also features carbon recovery as part of the process and has high removal rates compared to alternative systems such as activated sludge and SBR. It offers low operational expenses, energy savings of up to 30% compared to other MBBR processes, simple operation, and can be used to retrofit existing plants in existing tanks and reactors.

The AGAR® MBBR process uses grown biofilm on the carriers and aeration system to perform an effective biological wastewater treatment. Wastewater is introduced into a single or multi-stage system with ABC carriers, and air is supplied via fine/coarse bubble diffusers located at the bottom of the reactor. The unique “double roll” aeration design creates constant collisions between the carriers to maintain a thin biofilm layer. Stainless steel screens are installed at the outlet of each biological stage to prevent clogging, and the effluent exits the reactor to a solid-liquid separation unit such as clarifier, DAF, Media-Clarifier, etc.

Main Features

Strong and efficient biological process – high removal rates
Up to 50% smaller footprint
Less air requirement
COD/BOD/Nitrogen removal
Usage of fine or coarse bubbles diffusers for aeration
No need to recycle sludge back to the reactor
Carbon recovery is part of the process
High removal rates compared to alternative systems such as activated sludge and SBR
Superior self-cleaning of the carriers and screens

Core Benefits

Low operational expenses – energy savings up to 30% compared to other MBBR processes
Simple operation
Can be used to retrofit existing plants in existing tanks & reactors
Minimal biological clogging on the carriers and media screens
Fast recovery
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