BioCalibra: Device for activated sludge models calibration

  • Universitat de València
  • From Spain
  • Responsive
  • Innovative Products and Technologies

Summary of the technology

The device has the following advantages over existing techniques:
 Improves WWTP simulations: allows simulation of calibrated WWTP with only the adjustment of influent characteristics.
 High efficiency: allows the calculation of the most important set of parameters for the activated sludge model with the minimum of experimental effort
 User friendly software: all elements are controlled by the calibration software that can be installed on any conventional computer.

Description of the tech for sale

To achieve an optimum design of water treatment plants (WWTP), is necessary a deep knowledge of the mechanisms that take place in the activated sludge processes. The great quantity of factors that influences the performance of these processes, makes necessary the use of complex mathematical models. In fact, the large number of parameters present in the most used and accepted models makes especially difficult their correct estimation for a specific system. A possible alternative could be the parameter estimation through the adjustment by simulation of experimental data on dynamic conditions. However, this methodology has various disadvantages, as could be its inaccuracy for those parameters that present high correlation and its dependence on the experimental data hydraulic conditions. Researchers from the Universitat de València and the Universitat Politècnica de València, have developed an automated calibration device that allows the calculation of the kinetic and stoichiometric parameters for the most accepted models for activated sludge processes.


BioCalibra performs all necessary assays for calibration, as well as numerous experiments designed for the performance evaluation of the biological process as could be: determination of biodegradability of waste water, verification of the existence of toxic compounds, determination of possible interferences, or determination of potential impacts on treatment process. BioCalibra performs both the experimental tasks and the subsequent determination of calibration parameters for the mathematical models.

Main advantages of its use

  • The use of this new device allows improving the calibration process, so reducing time and manpower necessary for this task.


  • Optimization of WWTPs design and performance for those plants that include biological removal of organic matter, nitrogen and phosphorus.

Related Keywords

  • Industrial Technologies
  • Physical Sciences and Exact Sciences
  • Protecting Man and Environment
  • Simulation
  • Engineering
  • Other Processes
  • Food Processing
  • Environment
  • Industrial Products
  • Engineering services
  • chemical engineering
  • wastewater treatment
  • environment
  • WWTP
  • Water Treatment Plants
  • calibration
  • activated sludge
  • Biological Process
  • Biological removal
  • Organic matter
  • nitrogen
  • Phosphorus.

About Universitat de València

The University of Valencia, founded over five centuries ago by the Juries of Valencia, is a modern European public University, open to almost all branches of knowledge: social, economic and legal sciences, Basic experimental sciences, engineering and Tehcniques, health sciences, educational sciences and the humanities.
More than 41,000 undergraduate students, 4,000 postgraduate students, 2,000 students from other universities all over the world, take classes taught by more than 4,000 professors, lectures and researchers at our campuses (more than 440.000 square meters) with the support of over 1,700 administration and service staff.
Our university community is committed to being a university of reference: we are ranked 4º in Europe in receiving Erasmus students and 5ª in sending of students (Ranking Erasmus Mobility); It is fourth spanish university in research at the international level, ranking between 201 and 300, according to Shanghai Jiao Tong University Rankings.
The University of Valencia is working in a wide range of investigative fields. The results of this activity are applied in a variety of productive sectors and social areas. Information of interest for businesses and public bodies about the Scientific and Technological Capacity of the University of Valencia is made available and offered for socioeconomic transfer through its Research Results Transfer Office (OTRI).
The OTRI is a service that manages and assesses in the generation and transfer of University knowledge towards the industry, encouraging the University role as an active agent in the economic and social development; makes easier the access to the University of Valencia research facilities; manage the intellectual property of the research results produced in the University and carry out its valorisation for efficient transfer, and offers orientation of university research groups towards the needs of Business, promoting and guiding effective relationships for exchange of knowledge applied to the needs of social and industrial environment, making easier its information dissemination and transfer.

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