Related Experiment Video
Updated: Dec 5, 2025
15:19
Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor
Published on: October 15, 2015
10.0K
Cocaine degradation using a rotating biological disc reactor: Techno-economic and environmental analysis using
Carlos A Díaz Vargas1, Juan C Solarte-Toro2, Liz W Cuadros Veloza3
1Universidad Nacional de Colombia sede Manizales, Laboratorio de Ciencias Biológicas y Moleculares, Departamento de Ingeniería Química, Km 07 vía al Magdalena, Manizales, Colombia.
Journal of Hazardous Materials
|October 19, 2020
Summary
This study explored bacterial cocaine biodegradation in a Rotary Disc Reactor as an eco-friendly disposal method. Biodegradation achieved 99.4% removal, offering a promising alternative to cocaine incineration.
Area of Science:
- Environmental Microbiology
- Biotechnology
- Waste Management
Background:
- Seized cocaine presents a significant disposal challenge.
- Incineration is a common but potentially environmentally impactful disposal method.
- Biotechnological approaches offer novel solutions for hazardous waste degradation.
Purpose of the Study:
- To compare the efficacy of bacterial cocaine biodegradation versus incineration.
- To evaluate the economic and environmental viability of a Rotary Disc Reactor for cocaine disposal.
- To assess the performance of a bacterial consortium (C1T) in degrading cocaine.
Main Methods:
- Isolation of a bacterial mixed culture utilizing cocaine as a sole carbon and energy source.
- Application of the bacterial consortium in a Rotary Disc Reactor (RDR) for cocaine degradation.
- Comparison of RDR biodegradation with conventional oven incineration, analyzing economic and environmental factors.
Main Results:
- Achieved 99.4% cocaine removal efficiency using the C1T bacterial consortium in the RDR within 42 hours.
- Biotechnological degradation showed a 58% higher initial unit disposition price than incineration at 30 g/L.
- Economic sensitivity analysis indicated a potential 20% price reduction for RDR degradation.
- RDR system demonstrated superior environmental performance, with lower atmospheric and toxicological impacts compared to incineration.
Conclusions:
- Bacterial biodegradation in a Rotary Disc Reactor is a highly efficient method for cocaine disposal.
- The RDR approach presents a viable, environmentally superior alternative to cocaine incineration.
- Further economic evaluation at larger scales is warranted to optimize the biotechnological degradation pathway.
