Active Pharmaceutical Ingredients: What They Are and How to Remove Them from Wastewater

Active Pharmaceutical Ingredients (APIs) represent one of the most significant challenges in pharmaceutical wastewater treatment. These bioactive compounds, essential for the production of medicines, can have significant environmental impacts when released into surface waters, even in minimal concentrations. But what exactly are APIs, and why is their removal so important?

Understanding APIs and Their Environmental Impact

APIs are substances responsible for the therapeutic effect of drugs. Designed to interact with specific biological targets in humans and animals, these compounds maintain their biological activity even after being released into the environment. When they reach aquatic ecosystems through industrial wastewater, they can cause harmful effects on aquatic flora and fauna, alter ecosystem balance, and contribute to the worrying phenomenon of antibiotic resistance.

The Complexity of Pharmaceutical Wastewater Treatment

Wastewater from the pharmaceutical industry presents unique characteristics that make its treatment particularly challenging. Each production site generates wastewater with specific compositions, requiring customised solutions. The presence of APIs, solvents, and other chemical compounds requires a combined treatment approach, combining various technologies to ensure effective removal of all contaminants.

Technological Solutions

Veolia is at the forefront in this sector, offering a comprehensive portfolio of innovative technologies for API removal:

• Evaporation: Evaporation technology not only reduces the volume of wastewater containing APIs by over 90%, but also allows for the recovery of reusable technical water, significantly contributing to the circular economy of the production process.
• MBBR: eXeno is an advanced biological solution that harnesses the power of specialised microorganisms and, through a multi-stage process, effectively degrades APIs and other organic compounds, ensuring high efficiency even at peak loads. Its flexibility makes it ideal for both new plants and for upgrading existing systems.
• Ozone: Ozone is one of the most effective solutions for treating the most resistant APIs. Thanks to its high oxidizing power, it can break down complex molecules into simpler, less harmful compounds. Its application, both as a primary treatment and as a finishing step, guarantees excellent results in the removal of particularly persistent APIs.
• Clairaflocculation and activated carbon: Actiflo Carb combines accelerated clariflocculation with the use of powdered activated carbon. The result is an extremely efficient system for removing micropollutants, ensuring high performance with a small footprint.

The implementation of these innovative technologies allows pharmaceutical companies to ensure compliance with increasingly stringent environmental regulations and significantly reduce disposal costs, while also offering the possibility of recovering and reusing water in the production process. This approach not only minimises environmental impact but also contributes to improving the company's overall sustainability.

Towards a sustainable future

Responsible management of APIs in wastewater is not only a regulatory requirement but an ethical imperative for the modern pharmaceutical industry. Veolia's innovative technologies enable companies to combine production efficiency with environmental sustainability, protecting water resources for future generations.

Removing APIs from wastewater is a complex challenge that requires expertise, technology, and commitment. With the right solutions and an integrated approach to water treatment, this challenge can be transformed into an opportunity to innovate and improve the sustainability of the pharmaceutical sector.