Ozone is a powerful water treatment tool that can bridge the widening gap between stringent final treated water requirements and decreasing incoming water quality. To achieve potable reuse water quality requirements, SUEZ Oxyblue™, a combination of ozonia* ozone and biofiltration, has emerged as an attractive alternative to reverse osmosis by providing high quality water at a significantly reduced lifecycle cost. One advantage of ozone-based solutions is driven by treating the full water flow directly, without segmenting or concentrating a separate waste stream. Ozone solutions do not generate a brine that requires additional, and often costly, treatment.
In wastewater applications, ozone is effective at eliminating target contaminants and disinfection. Long-term operation of full-scale ozone systems has demonstrated the removal of chemicals of concern such as pharmaceuticals, endocrine disruptors, hormones, and pesticides.
Ozone is also a flexible tool that improves performance for other technologies. After secondary or tertiary treatment, ozone and biofiltration work synergistically with each other. Ozone breaks down trace organics increasing their bioavailability for enhanced removal during biofiltration. The technology combination provides lower costs and improves target contaminant removal efficiencies, with results often greater than 90%. This treatment process is also flexible as the ozone dosage can be varied to match the incoming water quantity and quality.
Trace contaminants are one of the largest environmental and public health threats related to water resources recovery. Ozone is used to remove trace contaminants directly as well as in combination with other technologies to reduce cost. After years of research, piloting and full-scale operating plants, ozone has emerged as a cost effective and efficient solution to enable water reuse while protecting the water security of the global community.
