Wehrle supplies Direct-RO for leachate treatment in Spain

The new Direct-RO reverse osmosis plant will be employed to treat leachate from a landfill in Galicia, Spain

Wehrle has been tasked to supply a new Direct-RO reverse osmosis plant to treat leachate from a landfill in Galicia, Spain. The order, which the company received last month, includes a containerized three-step reverse osmosis unit as well as the transport and on-site commissioning of the plant.

Direct-RO is the new reverse osmosis product developed by Wehrle. It is available in three sizes – S, M or XL – covering a wide range of flow rates from 40 m³/d to 260 m³/d. The plant to be supplied will be size M, treating up to 150m3 of leachate per day to achieve the quality for direct discharge into the nature. The three treatment stages will reduce the chemical oxygen demand (COD) concentration from approximately 20,000mg/l to 160mg/l and the NH4-N load by 99.7%.

Some advantages include the high treatment performance and user-friendliness of the plant due to the technology as well as the containerized CIP system with external acid storage tank, allowing a quick installation and commissioning of this treatment solution. The modular design is also an ideal condition for future extensions of the wastewater treatment system, such as an upgrade to a Wehrle Biomembrat membrane bioreactor.

Commissioning of the plant is planned after a short delivery period of only four months. After commissioning, the plant will be operated by the customer, a Galician waste management company.