Related Experiment Video
Updated: Jul 17, 2025

11:31
Continuously-stirred Anaerobic Digester to Convert Organic Wastes into Biogas: System Setup and Basic Operation
Published on: July 13, 2012
33.9K
ROOTS - Circular policies for changing the biowaste system.
Miguel Ángel Suárez1, Elisa Gambuzzi1, José M Soriano Disla1
1CETENMA, Cartagena, Spain.
Open Research Europe
|August 30, 2023
Summary
The ROOTS initiative unites five projects to advance urban biowaste valorisation in the circular bioeconomy. It identifies bottlenecks and proposes policy recommendations for sustainable resource management and decarbonisation.
Area of Science:
- Circular economy
- Sustainable resource management
- Urban biowaste valorisation
Background:
- The circular economy offers significant potential for societal sustainability and decarbonisation.
- Barriers such as technological readiness, funding, biowaste quality/quantity, and regulations hinder urban biowaste valorisation.
- The European Green Deal presents an opportunity to address regulatory barriers.
Purpose of the Study:
- To promote innovative solutions for the European circular bioeconomy.
- To overcome barriers in the deployment of a circular bioeconomy through collaborative projects.
- To provide policy recommendations and practical solutions for biowaste management.
Main Methods:
- Five Horizon 2020 projects (HOOP, VALUEWASTE, SCALIBUR, WaysTUP!, CITYLOOPS) teamed up under the ROOTS initiative.
- Piloting innovative solutions to transform urban biowaste (food and green waste) and wastewater.
- Identifying bottlenecks across various topics including prevention, recycling, treatment, and citizen behaviour.
Main Results:
- Successful piloting of diverse technologies for transforming urban biowaste into valuable products (feed, fertilisers, bioplastics, etc.).
- Identification of key bottlenecks in biowaste prevention, recycling targets, waste treatment, biopesticides, insect farming, protein production, citizen engagement, and investment.
- Development of policy recommendations and sharing of good practices from project experiences.
Conclusions:
- Addressing identified bottlenecks is crucial for the successful implementation of a circular bioeconomy.
- Policy interventions at all governance levels are needed to support biowaste valorisation.
- Collaboration and knowledge sharing among projects are vital for advancing sustainable urban biowaste management.
Related Concept Videos
Bioremediation
18.9K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.9K
What are Biogeochemical Cycles?
32.5K
The most common elements in organic molecules, carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorus, are only available in the ecosystem in limited amounts. Therefore, these nutrients must be recycled through both biotic and abiotic components of the ecosystem, in processes generally called biogeochemical cycles.
32.5K
Environmental Applications of Microorganisms
55
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
55

