AP26195367 Development of an automated bioreactor line for continuous production of biogas and fertilizers

This project aims to address the pressing issue of organic waste management in rural areas where traditional methods pollute the environment. It involves developing a system of linearly connected bioreactors with automated controls for the continuous production of pure methane and organic fertilizer. The fertilizer will be purified of pathogens and antibiotics using ultraviolet radiation in the final bioreactor. We also plan to grow microalgae using mineral-rich wastewater for subsequent reuse in the bioreactors. At the same time, the microalgae cultivation process will help purify the biogas of unwanted impurities.

The project's goal is to develop linearly connected bioreactors with an automated system for sale to farmers and farms. These bioreactors will produce pure methane and organic fertilizer free of pathogens and antibiotics, as well as use manure sludge and biogas to grow microalgae.

1. The optimal dimensions and design of linearly connected bioreactors have been developed.

2. A closed-loop PID control system for loading substrate with a given viscosity has been developed.

3. A closed-loop PID control system for regulating substrate acidity has been developed.

4. A closed-loop PID control system for temperature control in the bioreactor has been developed.

5. A closed-loop automated unloading system for the final bioreactor using a screw separator has been developed.

6. The design and optimization of the parameters of a device for growing microalgae using manure sludge and biogas have been developed.

7. An automated central control system has been developed.

8. Results of studies using various substrates and their mixtures for the production of biogas and organic fertilizers have been obtained.

9. Ultraviolet lamps have been installed in the final bioreactor.

10. Results of biogas production studies in each bioreactor have been obtained. 11. Studies were conducted to detect the presence of pathogenic microorganisms and antibiotics, and the degree of their destruction using ultraviolet rays in a bioreactor was tested.

12. The growth dynamics of microalgae on manure sludge and carbon dioxide from biogas, as well as the efficiency of manure sludge and biogas treatment, were studied.

13. A dissertation on the project topic was prepared and successfully defended.

14. At least two (2) articles and/or reviews have been published in peer-reviewed scientific journals on the project's scientific focus, indexed in Science Citation Index Expanded and included in the 1st (first), 2nd (second), and/or 3rd (third) quartiles of the Web of Science impact factor and/or having a CiteScore percentile in Scopus of at least fifty (50);

- at least one (1) article or review in a domestic or foreign scientific publication recommended by the Committee on the Protection of Scientific and Cultural Heritage;

- or at least one (1) article and/or review in peer-reviewed scientific publications in the project's scientific focus, indexed in the Science Citation Index Expanded and included in the first (1) quartile of the Web of Science impact factor and/or having a CiteScore percentile in Scopus of at least eighty (80);

- at least one invention and/or utility model patent (including a positive decision on it)

15. Documentation for the biogas device has been prepared for the purpose of further commercialization of the project.