**About the Editors**

## **Ivet Ferrer**

Dr. Ivet Ferrer is a Full Professor at the Department of Civil and Environmental Engineering of the Universitat Politecnica de Catalunya·BarcelonaTech. She leads the Research Group of ` Environmental Engineering and Microbiology (GEMMA-UPC). Her main research topic is the optimization of biomass anaerobic digestion by applying pretreatments and co-digestion. She has also addressed the implementation and assessment of low-tech digesters for rural areas. Her research is now focused on the recovery of resources from waste streams, including high-value bioproducts and biogas.

#### **Stephanie Lansing**

Dr. Stephanie Lansing is a Full Professor and Associate Chair at the Department of Environmental Science & Technology at the University of Maryland, USA. She leads the Bioenergy and Bioprocessing Technology Laboratory. Her research focuses on anaerobic digestion, waste to energy, antimicrobial resistance, microbial electrolysis cells, nanotechnology, gasification, nutrient management and capture, and modeling. She has 20 years of experience in on-farm energy research, outreach education, and economic/sustainability analyses of waste to energy systems.

#### **Jaime Mart´ı-Herrero**

Jaime Mart´ı Herrero (PhD) is a Full Professor at the Universidad Regional Amazonica Ikiam ´ (Ecuador) and belongs to the Biomass to Resources Research Group. In addition, he is an Associated Research Professor at the International Center of Numerical Methods in Engineering (CIMNE, Spain) at the Building Energy and Environment Research Group. His research focuses on the development, optimization and diffusion of biogas technology in rural areas of developing countries, with an emphasis on cold climates, psychrophilic anaerobic digestion and appropriate technologies. Currently, his research is focused on treatment of domestic wastewater through digesters for rural areas.
