Removal of recalcitrant organics from reverse osmosis reject water to protect a downstream bio process.

The Client

Arvia were approached by one of the world’s largest petrochemical companies who are involved in the processing, production and sales of petroleum refining and petrochemical products.

The company has a refinery in the East of China and was looking to improve its wastewater treatment process to comply with environmental regulations and reduce operational maintenance of their on-site effluent treatment process.

The Water Treatment Process Design

The purpose of the Nyex™ in this application is to remove the most persistent organic chemicals to protect the biological treatment step which is further downstream. If the chemicals from the RO stream were to react with the biology, this vital water treatment step would be damaged and would become ineffective.

Reverse Osmosis

RO Stream

Biological Process