Pros and Cons of a Moving Bed Bioreactor

Pros and Cons of a Moving Bed Bioreactor

A moving bed bioreactor is a biological sewage treatment process. In many instances, wastewater is full of organic matter that can be difficult to filter out by physical or chemical means. Thus, one of the best methods of dealing with organic matter is treating it with a biological process. The basic idea behind biological water treatment processes is using micro-organisms to break down sewage.

The media that carries out decomposition can be implemented in a number of ways. One of the most common is the activated sludge process, a type of suspended growth system that utilizes a loose sludge solution that is aerated to aid in the metabolic breakdown.

Another method is a trickling filter, a fixed film system that sprays the sewage on top of a bed of stones that are covered in a biofilm.

Both activated sludge and trickling filters have their advantages and are effective processes, but they also have certain disadvantages.

However, a moving bed bioreactor (MBBR) is a biological process that utilizes aspects of each of these systems and the associated benefits without their disadvantages. This process uses a biofilm that is attached to a carrier like the trickling filter, but the carriers are suspended in the solution with aeration bubbles like the activated sludge process.

Below, we’ll describe the pros and cons of an moving bed bioreactor system (MBBR) in wastewater treatment....