Best Strategies For Monitoring And Control Of Ozone And Biologically Active Filtration Systems

By Uwe Hübner, PhD, and Joseph Jordan

Ozone and biologically active filtration systems (O3-BAF) are an up-and-coming technology being employed in drinking water, wastewater, and reuse. It can be used as an alternative to or supplement to other common treatment processes. Compared to other technologies, such as reverse osmosis (RO), O3-BAF is fairly easy to use when the right monitoring and control system is applied. Getting the ozone dose correct is critical to the overall success of the system. With too little ozone, the system will not break down enough organic micropollutants (OMPs) and natural organic matter (NOM), which can make it more difficult for the BAF to digest them.

There are many ways to monitor and control such systems, however, and operators need to know which one will work best for the intended application. This article will explain the different parameters that can be used and the benefits and shortcomings of each.