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Bio-Star™ Biological Water Treatment Equipment

Bio-Star is a biological system for the treatment of industrial and municipal wastewater utilizing microorganisms to degrade or transform specific contaminants. It can be arranged in a variety of configurations to suit the conditions and treatment goals of a particular application and can be used as either a pre-treatment or post-treatment process in conjunction with other treatment processes.

Compliance Solutions

Bio-Star™ MBBR

In a Bio-Star MBBR BS-525 plastic biomass carrier media are suspended in a treatment reactor and efficiently mixed through aeration. Micro-organisms form a biofilm on the surface of carriers to biologically oxidize organic carbon (BOD) and ammonia nitrogen (NH3-N).

The optimum biofilm thickness is automatically controlled by constant vigorous agitation of the freely moving media, creating a scouring action that sloughs excess biomass from the media surface and is washed out of the reactor in the effluent while the media is retained within the reactor using stainless steel cylindrical screens.

Bio-Star™ IFAS

As the name implies, an Integrated Fixed Film Activated Sludge (IFAS) process is an enhancement of a conventional activated sludge process through the introduction of plastic biomass carrier media typically used in an MBBR process. The reactor will contain both Mixed Liquor suspended biomass, as well as biomass attached to the media as biofilm, increasing the total biomass inventory within the same reactor volume.

The IFAS process is typically employed to dramatically increase the treatment capacity of an existing activated sludge process without the need to construct additional tankage

Product Details

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ALAR designs each system to meet the customer's build-to specifications. ALAR begins with stock layouts, and customizes the auxiliary equipment according to the customer's specifications. These stock layouts are available in PDF format. Contact ALAR for more information


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