(+34) 91 579 96 80 info@pesa-ma.com


A team of water treatment experts

What do we do?

PESA Medioambiente (formerly Passavant España) designs, builds and operates wastewater and drinking water treatment plants, as well as sludge and biosolids treatment and recovery facilities, optimising their technical and economic performance.

We work to offer the best solutions in:

  • Waste water treatment
  • Drinking water treatment
  • Regeneration and reuse of wastewater
  • Desalination
  • Treatment of sludge and biosolids for energy recovery
  • Compact water treatment solutions
  • Leachate treatment
  • Emissions reduction and deodorization
  • Engineering and project management
  • Exploitation of facilities
  • Project financing
  • Integral   execution   of plants in EPC mode (Engineering, Procurement and Construction)
  • Plant O&M


Mission Statement

Water is a vital resource and its management is a great challenge in our time. At PESA we dedicate all our efforts to create competitive water treatment solutions for our customers.


Integral vision of water treatment

The experience of PESA Medioambiente allows us to apply an integral and global vision to the management of water and sludge. 

We approach our projects with a long-term perspective, looking for the most profitable solution in the long term that provides the greatest operational efficiency for the benefit of our customers, the environment and society.


Our values

More than 30 years of experience and 150 successfully completed projects. Our extensive experience, technical knowledge and capacity, allows us to assume the complete management of projects, from the initial design to the operation phase. Our focus: the customer.