The BIONATURE operation is divided into five lines of research.

Automation and control of anaerobic digestion:

(1) Anaerobic Digestion Pilot Plant Read More

(2) Hydrogen as a stability indicator for dynamic modeling and control of anaerobic digestion processes
Anaerobic Digestion (DA) allows waste treatment and renewable energy generation through biogas production, however, assuring the process stability is a challenge that has not been succesfully tackled yet. Hydrogen is an intermediary component of the process and is key to detect potential stability problems, therefore, could be used to develop control strategies for the operation. Researchers: Giannina Giovannini, Andrés Donoso-Bravo, Gonzalo Ruiz-Filippi

(3) Optimization of leachate recirculation in municipal landfills through mathematical modeling
The operation and management of municipal landfills can be improved through leachate recirculation, with strategies that can be evaluated with mathematical models. These models can describe the biological process inside the landfill and optimize the organic material solubilization and landfill compression. Researchers: Alfredo Torrico, Héctor Ramirez

Odor management strategies:

(4) Development of an integrated model for anaerobic digestion and odor dispersion in a wastewater treatment plant (WWTP)
Odor generation in a WWTP is an issue that can cause discomfort and even health problems to the nearby population if not managed properly. It is mainly caused by certain anaerobic digestion products during the sludge treatment. The modeling of this biological process can be helpful for optimizing the plant odor's management, along with allowing corrective measures on the operation. Researchers: Fabio Carrera, Andrés Donoso-Bravo, Gonzalo Ruiz-Filippi

Mathematical modeling in fishery towards sustainable industrial strategies:

(5) Innovative cualitative tools for sustainable recovery of common hake
Project for the artisan fishermen of the Valparaíso Region in Chile, wich consists of an interactive web platform that gives information about strategies for sustainable recovery of common hake. (more info see Researchers: Pedro Gajardo, Héctor Ramirez

Modeling, operation and optimization of microalgae culture and biogas production:

(6) Modeling of an absortion column for carbon dioxide removal
This research proposes a biogas purification system consisting of a carbon dioxide absortion column, in order to obtain a product that complies with the regulations for biomethane injection in vehicles and in natural gas supply systems. There aren't reports for mathematical modeling of this kind of processes, therefore, this project is highly innovative and can be a precursor on this field. Researchers: Carlos Martínez, Leslie Meier, Alejandro Rojas, David Jeison

(7) Light influence on nitrification in a microalgae co-culture, is a factor that is evaluated.
Besides being a source of biofuel, microalgae can be used for wastewater treatment and can work in symbiosis with nitrifying bacteria to transform ammonia into nitrate with the oxygen provided by microalgae. This bioprocess is an innovative way of making wastewater treatment an environmentally and economically sustainable process. One of the most important parameters is the light, and its influence is evaluated. Researchers: Gustavo Vargas, Cristian Vergara, Andrés Donoso-Bravo, Matthieu Sebbah, Gonzalo Ruiz-Filippi

(8) Optimization of discontinue microalgae culture in a photobioreactor
Microalgae production depends on environmental and operational conditions. Its modeling can allow to evaluate and define the best operational conditions that maximize microalgae productivity. Researchers: Alejandro Rojas, Héctor Ramirez

Innovative technologies and modeling on wastewater and residues treatment:

(9) Bioreactor usage modeling for water resources treatment
This research proposes the decontamination of water resources with a bioreactor that treats de water inlet and returns the treated water to the source. Researchers: Víctor Riquelme, Héctor Ramirez, Joaquín Fontbona

(10) Forward Osmosis (FO): An alternative for wastewater concentration
This research proposes wastewater recovery through a FO process, which also enables its treatment by anaerobic digestion. This technology can reduce sludge production, stabilize the sludge, save energy and increase the energy generation through biogas production. Researchers: Juan Carlos Ortega, Isaac Reyes, Matthieu Sebbah, David Jeison