Sequencing Batch Reactor

The Sequencing Batch Reactor (SBR) is an activated sludge process designed to operate under non-steady state conditions. SBR reactors treat bio-solids, sewage, sludge or other output from aerobic or anaerobic digesters in batches.

The SBR system can be designed with the ability to treat a wide range of influent volumes whereas the continuous system is based upon a fixed influent flow rate. Thus, there is a degree of flexibility associated with working in a time rather than in a space sequence. Advantages includes easy and compact construction, control in time, selection of well settling sludge ('integrated selector effect') and quiescent settling conditions.

SBRs produce sludge’s with good settling properties providing the influent wastewater is admitted into the aeration in a controlled manner using either flow proportional aeration or dissolved oxygen controlled aeration to reduce aeration to reduce energy consumption and enhance the selective pressures for BOD, nutrient removal, and control of filaments. The majority of the aeration equipment of sequencing batch reactors consists of jet, fine bubble, and coarse bubble aeration systems.

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PROTEC is a privately owned company established in Doha, Qatar engaged in the fields of Engineering, Supply, Construction, Installation, Commissioning, Operation and Maintenance of various types of equipment for the Water, Waste Water, Energy, and Industrial markets.


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