Natural Sciences
Transforming Food Waste into Clean Energy: Makerere University Researchers Equip Mbarara City Residents with Biogas Production Skills
*****Led by Dr. Patience Tugume from the Department of Plant Sciences, Microbiology and Biotechnology at Makerere University, a project titled “Bio-innovation of biogas, biofertilizer, and biopesticide through the utilization of bio-waste” is promoting the transformation of household food waste into biogas and other valuable bio-products. The project team disseminated the research findings to stakeholders in Mbarara City on 15th April 2026.
About the Project
A one-year bio-innovation initiative focused on converting household food waste into biogas, biofertilizer, and biopesticides has yielded promising results in improving access to clean energy and promoting sustainable agricultural practices in peri-urban communities of Mbarara City.
The project, implemented by Makerere University in collaboration with Frevasema Ltd in Mbarara, was supported by UNESCO and the International Development Research Centre (IDRC) – Canada through the Organization for Women in Science for the Developing World (OWSD). Launched in January 2024, it is led by Dr. Patience Tugume from the Department of Plant Sciences, Microbiology and Biotechnology at Makerere University.
The initiative has been implemented across five divisions of Mbarara City – Kakoba, Kamukuzi, Nyamitanga, Biharwe, and Nyakayojo – with additional field trials conducted in Masha Sub-county, Isingiro District.
Objectives of the project
The central aim of the project was to demonstrate how biodegradable household waste can be transformed into useful products, particularly biogas for cooking, as well as organic biofertilizers and biopesticides for improved crop production.
Key objectives of the project included: establishing a spin-off centre of bioreactors at the business partner institution (Frevasema Ltd) to demonstrate sustainable production of biogas, biopesticides and bio-fertilizers; training and equipping women and youth with hands-on skills in biogas production and usage; evaluation of yields from different bio wastes; and creation of linkages between academia, the private partner and rural communities in up-scaling production of biogas, biopesticides and bio-fertilizer from household/urban biodegradable wastes.
Key Activities and Dissemination of Project Findings
The project team conducted a survey to assess community perceptions and the factors influencing the adoption of biogas as an alternative cooking energy source in peri-urban areas of Mbarara City. In addition, biodigester tanks were constructed at FREVASEMA Ltd to support training and knowledge transfer activities.
Field experiments were undertaken in Masha Sub-county, Isingiro District to evaluate the effectiveness of an integrated biofertilizer–biopesticide. Further experiments to assess biogas yield from different types of food waste were conducted at Makerere University.
The team also developed an integrated biofertilizer–biopesticide by enhancing bioslurry, a by-product of biogas production, with plant extracts known for their pesticidal properties. The effectiveness of this product was tested on the growth performance of green pepper, cabbage, and eggplant.
In line with one of the project objectives, the team also conducted hands-on training in biogas production from food waste for 35 students and 6 staff members of MAMITA Technical and Business Institute.
Dissemination workshop
On 15th April 2026, the project team led by Dr. Tugume held a dissemination workshop to share findings with stakeholders and discuss strategies for scaling up the outcomes.
Findings from the research highlight the strong potential of biogas in contributing to sustainable energy solutions, improving livelihoods, and enhancing environmental conservation through proper food waste management.
Key research findings
- The application of integrated biofertilizer–biopesticide presents a viable alternative to scarce, expensive, and environmentally harmful inorganic fertilizers for enhancing vegetable productivity.
- The study revealed that approximately 90.7% of respondents depend on charcoal and firewood as their primary cooking fuel.
- While 92.1% of respondents were aware that biogas is produced from animal and plant materials, only 7.9% recognized that food waste can also serve as a feedstock, indicating limited awareness of its full potential.
- Banana and potato peels, as well as posho and potatoes leftovers, and green vegetable trimmings, were identified as the most commonly generated food wastes.
- A majority of respondents strongly agreed that biogas is a cleaner and more sustainable energy alternative compared to firewood.
- Key barriers to biogas adoption included inadequate technical knowledge, safety concerns regarding biogas systems, and the high costs of constructing and maintaining biodigesters.
- The extremely low adoption rate of biogas technology (0.3%) indicates significant underutilization despite its potential to mitigate fuel shortages.
- There is a prevailing perception that biogas is suitable for cooking and can effectively replace biomass fuels, given the availability of sufficient feedstock from household food waste, human waste, and animal manure.
- Potato and posho residues were identified as the most suitable primary feedstocks for biogas production due to their high nitrogen content, volatile solids, and total organic carbon (TOC).
- Effective collection and proper segregation of food waste are essential for ensuring a consistent and uncontaminated supply of feedstock for biogas production systems.
- Further research is recommended on integrated biogas systems that combine anaerobic digestion with other renewable energy technologies, such as solar energy or bioelectrochemical systems, to improve overall energy recovery efficiency.
- Vegetables treated with the integrated biofertilizer–biopesticide consistently exhibited superior performance across all growth parameters compared to those treated with inorganic fertilizers (including 5% cypermethrin pesticide) and untreated controls.
Stakeholder engagement and appreciation of the initiative
During the dissemination workshop, Dr. Patience Tugume, the Principal Investigator, expressed gratitude to UNESCO and the International Development Research Centre (IDRC)-Canada, through the Organization for Women in Science for the Developing World (OWSD), for funding the project. She appreciated the research team composed of Dr. Asiimwe Savina, Prof. Maud Kamatensi-Mugisha, Prof. Bazirake Byarugaba, Ms. Catherine Kiconco and Mr. Muhumuza Robert for their contribution. She equally appreciated all participants for contributing valuable information to the study.
Stakeholders commended the project for its relevance and community impact.
Prof. Bunny Lejju Julius from Mbarara University of Science and Technology, appreciated the project team for developing an innovation that directly addresses community needs and aligns with the principles of the competency-based curriculum, particularly the translation of academic knowledge into practical application. He advised that sustainability of the initiative could be strengthened through a multiplier approach, where the trained learners cascade the knowledge to other community members. He further recommended the identification of institutional staff who can undergo training at the spin-off centre and subsequently serve as trainers within their respective communities.
The portable biodigester system was recognized as a simple, affordable, and practical technology with the potential to provide a cost-effective alternative to charcoal and electricity. Participants noted that while resistance to change remains a challenge, continuous awareness creation is essential to promote adoption and facilitate behavioral change.
Mbarara District Forest Officer, Ms. Ainembazi Joses, highlighted the importance of the biogas production project in environmental conservation. She noted that the initiative contributes to reducing deforestation by offering an alternative to firewood and charcoal, thereby supporting sustainable natural resource management.
The Local Council Chairperson of Mailo-Biharwe Division, Mr. Didas Katabazi, appreciated the project team for the innovative work and its potential benefits to the community. He pledged to use his office to advocate for increased government support to scale up the project.
The Resident City Commissioner of Mbarara City expressed concern over the rising levels of deforestation in the district and commended the Principal Investigator for spearheading the innovation. He reaffirmed the government’s commitment to supporting science and innovation. He emphasized the importance of integrating environmental protection with agricultural productivity, explaining that food security remains a national priority. He further noted that the project demonstrates the concept of waste valorization, where organic waste is transformed into valuable products such as biofertilizers and biopesticides, thereby enhancing agricultural productivity. He pledged to engage the Office of the President to support wider dissemination of the project outcomes. Additionally, he encouraged the trained students to act as ambassadors of the project by sensitizing communities on the benefits of biogas as an alternative source of cooking energy.
Way forward
- The government should invest in constructing bio digesters for households at subsidized prices or offer them financial assistance to cater for bio digester construction.
- Awareness campaigns about the production and use of biogas and associated benefits should be intensified in communities to dispel the negative perceptions.
- Provision of technical training in operating and maintenance of biogas installations should be conducted.
- Sorting of wastes at household level should be emphasised to separate biodegradable from non biodegradable ones.
- The integrated bio-fertilizer-bio-pesticide is an effective, sustainable strategy to increase vegetable productivity while improving soil health in nutrient-limited soils.
- The project recommends adoption of bio-fertilizers (e.g., bio-slurry) which are affordable and can be made from kitchen and market waste to reduce dependence on expensive chemical fertilizers to improve crop growth while controlling pests safely in addition to being safe for humans and the environment.
Donation of portable biodigester systems
As part of the commitment to translate research into tangible benefits, the project awarded two women and MAMITA Technical and Business Institute with portable biodigester systems for installation and use in their households and institution respectively. These systems will serve as demonstration units within the community showcasing the practicality, affordability, and impact of clean energy solutions at the household level.
Report compiled by Dr Patience Tugume, Principal Investigator & Senior Academic Staff in the Department of Plant Sciences, Microbiology & Biotechnology at Makerere University
Natural Sciences
Enhancing Experiential Learning: ZPEB Uganda Donates Well Control System Demonstration Model to Mak’s Department of Geology & Petroleum Studies
ZPEB Uganda Co. Limited has donated a Well Control System Demonstration Model to the Department of Geology and Petroleum Studies at Makerere University, a contribution expected to significantly enhance practical training, research, and industry-oriented learning in petroleum geoscience and drilling engineering.
The equipment was officially handed over to Makerere University at a ceremony held on 5th August 2026 at Onomo Hotel Kampala. The event was attended by Makerere University Vice Chancellor, Prof. Barnabas Nawangwe, alongside representatives from the Department of Geology and Petroleum Studies led by the Head, Dr John Mary Kiberu.
The Well Control System Demonstration Model is an advanced educational training tool designed to provide students with practical understanding of well control principles, equipment operation, and safety procedures applied during drilling operations. Although it is not intended for field deployment, the model offers a realistic representation of the systems and processes used in the prevention and management of well control incidents, including blowouts, enabling students to acquire practical experience within a safe learning environment.
The equipment will significantly enhance students’ understanding of well control systems by providing practical demonstrations of pressure management techniques and strengthening their competencies in kick detection, well control procedures, drilling safety, and emergency response.
By integrating practical demonstrations into petroleum education, the model will contribute to the development of highly skilled graduates equipped with the technical knowledge and practical capabilities required to support Uganda’s emerging oil and gas industry.
ZPEB Uganda Co. Limited, the donor of the equipment, is the Ugandan subsidiary of Zhongyuan Petroleum Exploration Bureau (ZPEB), a globally recognized Chinese drilling contractor with extensive expertise in oil and gas exploration, drilling, cementing, and engineering services. The company has been actively involved in supporting petroleum exploration and development activities in Uganda while contributing to capacity building within the country’s oil and gas sector.
The Department of Geology and Petroleum Studies at Makerere University continues to play a pivotal role in developing professionals who contribute to the sustainable exploration and management of natural resources. Through its undergraduate and postgraduate programmes, the Department equips students with comprehensive knowledge and practical skills in geology, petroleum systems, exploration methods, reservoir characterization, and production technologies.
Natural Sciences
CoNAS Orientation: First Year Students Urged to Lay Strong Foundation for Academic & Professional Success
First Year students admitted to the College of Natural Sciences (CoNAS) at Makerere University for the Academic Year 2026/2027 have been encouraged to remain focused on their studies, embrace the opportunities available at the University, and lay a strong foundation for successful academic and professional careers.
The call was made during the orientation ceremony held on 5th August 2026 at the College premises. The session introduced the students to university life and policies, academic expectations, support services, and the diverse opportunities available within the College and University, helping them make a smooth transition from secondary school to higher education.
The orientation was attended by the College Management led by the Principal, Prof. Winston Tumps Ireeta, the Deputy Principal, Prof. Juma Kasozi, Deans, Heads of Departments, academic staff, and representatives from various University administrative units.
Welcoming the students, the Principal, Prof. Winston Tumps Ireeta, congratulated them on securing admission to one of Uganda’s leading science colleges and encouraged them to take full advantage of the opportunities available at the University.
“CoNAS is internationally recognized for excellence in teaching, research, and innovation. Supported by highly qualified academic staff, 95 per cent of whom are PhD holders, the College provides high-quality education, equipping students with the knowledge, skills, and global perspectives needed to excel in an increasingly competitive world.”
Prof. Ireeta urged the students to approach university life with discipline and commitment from the outset, encouraging them to attend lectures consistently and develop effective study habits that would enable them to excel academically. While acknowledging that university life presents many social opportunities, he advised the students to maintain a healthy balance between academics and extracurricular activities.
The Deputy Principal, Prof. Juma Kasozi, challenged the students to take personal responsibility for their learning and professional development. He encouraged them to cultivate a culture of discipline, curiosity, and continuous learning, emphasizing that academic success is achieved through consistent effort rather than last-minute preparation.
He equally advised the students to attend all lectures, actively participate in all academic activities, and develop strong computer and statistical skills – competencies that are increasingly vital for success across scientific disciplines and in today’s evolving workplace.
He also urged the students to uphold academic integrity, manage their time effectively, and seek guidance whenever they encounter academic or personal challenges.
The Deans introduced students to the departments and academic programmes within their respective Schools, explaining programme structures, academic expectations, career prospects, and the support systems available to facilitate student success. They encouraged the students to take advantage of the mentorship opportunities offered by academic staff.
Addressing the students, the Acting Dean, School of Biosciences, also Head of the Department of Zoology, Entomology and Fisheries Sciences, Dr. Godfrey Kawooya Kubiriza, encouraged the students to embrace the programmes to which they were admitted, noting that each programme offers unique opportunities for learning, research, innovation, and career growth. “Success depends more on commitment, dedication, and hard work than on the title of one’s degree programme.” Dr. Kubiriza reminded the students that, while university life provides greater freedom and independence, it also requires a strong sense of responsibility, self-discipline, and effective time management to achieve academic success.
The Dean of the School of Physical Sciences, Prof. David Ssevviiri, underscored the critical role that science graduates play in driving national development through research, innovation, and technological advancement. He encouraged students to maximize the opportunities available within the School and urged them to adopt a finalist mindset from their very first semester by setting high academic standards and remaining committed to excellence throughout their academic journey.
Ms. Barbra Akello and Mr. Ivan Ocen shared practical insights on strategies for achieving a good CGPA. They encouraged students to take personal responsibility for their academic success by embracing self-directed excellence, setting clear academic goals, and developing effective study habits from the beginning of their university journey. They advised students to actively engage with lecturers, seek academic guidance whenever necessary, and build supportive study networks. They emphasized that consistent effort, early preparation, discipline, and a focused approach to learning are key foundations for attaining good grades and succeeding at the university.
Students also received comprehensive guidance on academic procedures and University regulations from representatives of the College Registrar’s Office, Ms. Hellen Mirembe and Ms. Hasifa Mukyala. They explained key processes relating to admission, registration, enrolment, progression requirements, examinations, academic appeals, and withdrawal procedures, while emphasizing the importance of honesty, integrity, and compliance with the University regulations. The students were also sensistized on the library services and fees payment policy.
The Deputy Director of the Institute of Open, Distance and e-Learning (IODeL), Dr. Godfrey Mayende, introduced students to the University’s digital learning environment. He demonstrated how students can effectively utilize the Makerere University Electronic Learning Environment (MUELE) to access course materials, submit assignments, and interact with lecturers. He also encouraged responsible and ethical use of Artificial Intelligence (AI) tools to support learning while observing the University’s academic integrity policies.
Representatives from the Gender Mainstreaming Directorate, the Counseling and Guidance Centre, and the Emerging Leaders’ Programme introduced students to institutional support services aimed at fostering academic success, personal growth, and wellbeing. They emphasized the availability of guidance, mentorship, and leadership development opportunities to help students effectively navigate university life and make informed decisions throughout their academic journey.
Photos of the orientation ceremony: https://drive.google.com/drive/folders/1eGEb6tAYcr15qQHIuV-Imgclu9sueOk7?usp=sharing
As the world of work continues to evolve, employers are increasingly seeking graduates who possess not only theoretical knowledge but also practical skills, problem-solving abilities, creativity, digital competence, and the ability to adapt to the rapidly changing technological and professional environments. In response to these demands, Uganda is embracing Competency-Based Education and Training (CBET), an approach that emphasizes the practical application of knowledge and skills needed to perform effectively in real-world settings.
Following the introduction of the Competency-Based Curriculum in secondary schools in 2019, the Ministry of Education and Sports directed institutions of higher learning to transition to competency-based education by 2027. The reform requires universities to redesign their curricula, adopt learner-centred teaching methods, strengthen practical training, and implement authentic assessment approaches that prepare graduates for both formal and informal employment.
Building Capacity for Competency-Based Education
In support of this national transition, Makerere University is strengthening the capacity of its staff to develop and implement competency-based programmes. From 21st to 23rd July 2026, the College of Natural Sciences (CoNAS) conducted a three-day capacity-building training for academic and technical staff to deepen their understanding of CBET principles and equip them with the skills required to design, deliver, and assess competency-based curricula.
Held at Ridar Hotel in Seeta, the training was conducted with support from the Strengthening Commercial Aquaculture (SCA) Programme, funded by the Embassy of the Kingdom of the Netherlands in Kampala (EKN) and implemented by the COFAD Consortium (COFAD–ThinkAqua–WUR). The programme is also supporting the Department of Zoology, Entomology and Fisheries Sciences (ZEFS) to review its undergraduate and postgraduate aquaculture programmes to align them with competency-based education and the evolving needs of Uganda’s growing commercial aquaculture sector.
The transition of ZEFS programmes to CBET presents a strategic opportunity for Makerere University to develop a flagship model for science-based competency-based education that could inform implementation across the University.
The Training Workshop
Officially opened by the Deputy Principal of the College of Natural Sciences (CoNAS), Prof. Juma Kasozi, the training was attended by staff from the Departments of Zoology, Entomology and Fisheries Sciences; Plant Sciences; Microbiology and Biotechnology; Biochemistry and Systems Biology; Exercise and Sports Science; and Chemistry. It was coordinated by Dr. Godfrey Kawooya Kubiriza, Head of the Department of Zoology, Entomology and Fisheries Sciences and one of the coordinators of the Competency-Based Education and Training (CBET) Programme at Makerere University.
The facilitators included Mr. Joshua Kunya, TVET Specialist and Training Consultant; Mr. Richard Basalirwa, an associate consultant and process expert with Skills Initiative Uganda; Dr. Cyprian Misinde, Director of Quality Assurance at Makerere University; and Mr. Maurice Ssebisubi, Lead Consultant for the Diagnostic and Rapid Needs Assessment of the BSc Fisheries and Aquaculture and MSc Zoology (Fisheries and Aquaculture) curricula at Makerere University.
Throughout the training, participants explored the principles of competency-based education and examined how universities can move beyond traditional knowledge transmission towards teaching and learning approaches that develop and improve practical competence, critical thinking, innovation, teamwork, communication, ethical leadership, digital literacy, and entrepreneurship.
Presentations also examined Makerere University’s curriculum development framework, emphasizing the importance of aligning academic programmes with national quality assurance standards, labour market demands, and international best practices. Participants underscored the need for curriculum reform to be informed by industry requirements and designed to produce graduates who can effectively apply their knowledge and skills in professional, entrepreneurial, and community settings.
Recommendations from the Diagnostic Assessment of the BSc & MSc Fisheries & Aquaculture
A key highlight of the training was the presentation of findings from a diagnostic assessment of the Bachelor of Science in Fisheries and Aquaculture and the Master of Science in Zoology (Fisheries and Aquaculture) programmes, conducted under the leadership of Mr. Maurice Ssebisubi. The assessment involved curriculum reviews, surveys of alumni and students, and consultations with employers and other stakeholders. It found that, although the programmes provide a strong scientific foundation, they require further strengthening to fully meet the requirements of competency-based education.
The assessment identified several gaps, including limited opportunities for practical and workplace learning, inadequate digital competencies, insufficient enterprise and business management skills, heavy reliance on end-of-semester examinations, and learning outcomes that place greater emphasis on knowledge acquisition than on the demonstration of competence.
To address these gaps, the assessors recommended revising learning outcomes, strengthening partnerships with industry, expanding supervised workplace learning, integrating digital technologies, modernising technical content, and adopting continuous competency-based assessment approaches.
Programme Review
During the practical sessions, participants worked in departmental groups to review existing curricula and redesign programme objectives, learning outcomes, teaching strategies, and assessment methods in line with CBET principles. These collaborative exercises enabled staff to begin developing curricula that are more learner-centred, industry-responsive, and aligned with Uganda’s national development priorities.
Participants identified several institutional requirements for the successful implementation of CBET, including increased investment in infrastructure and teaching resources, continuous staff development, strengthened quality assurance systems, and closer collaboration with industry.
While acknowledging that the transition to competency-based education will require significant institutional commitment and resources, participants noted that it presents an important opportunity to enhance graduate employability, foster innovation, strengthen industry linkages, and increase the contribution of universities to Uganda’s socio-economic development.
SCA Programme Reaffirms Support for Aquaculture Education
Speaking at the training, David Bargh, Team Leader of the Strengthening Commercial Aquaculture (SCA) Programme, reaffirmed the programme’s commitment to supporting Makerere University in strengthening aquaculture education and aligning its programmes with the evolving needs of the sector.
“A strong aquaculture sector requires skilled professionals. This is why curriculum reform is so important. Competency-based education focuses not only on what students know, but also on what they can do. Your role as lecturers and technicians is therefore central to producing graduates who are practical, innovative, and equipped to contribute meaningfully to Uganda’s aquaculture development.”
Appreciation to the funders
Addressing the participants, Prof. Juma Kasozi, Deputy Principal of (CoNAS), appreciated the funders for the support towards strengthening the quality, relevance, and impact of university education. He emphasized that Makerere University occupies a unique position in Africa’s academic landscape and therefore has a responsibility to remain responsive to the changing needs of society and the world of work. While acknowledging the University’s achievements and long-standing contribution to higher education, he noted that the rapidly changing social, economic, technological, and professional environment requires universities to rethink how they prepare graduates for the future. “Students should leave the university with more than academic qualifications – they should possess the practical skills, competencies, creativity, critical thinking, and problem-solving abilities needed to apply their knowledge effectively in the workplace and contribute meaningfully to national development.”
Dr. Godfrey Kawooya Kubiriza, Coordinator of the training and the CBET Programme equally appreciated the funders for the support. He underscored the need for staff to embrace the shift in mindset required by CBET, noting that successful implementation will depend on the ability of lecturers and technical staff to move beyond traditional approaches to teaching and assessment. He expressed optimism that the training would provide a strong foundation for the participating departments to develop and implement programmes that respond effectively to the changing needs of students, employers, industry, and society.
Photo highlights from Day One of the training: https://drive.google.com/drive/folders/1DZ_yEI2008uGo48C7hRyBZO8Dimxi_ky?usp=sharing
Photo highlights from Day Two and Three: https://drive.google.com/drive/folders/1XvsM3yggYG7FKX30binqpITB0wPBulhQ?usp=sharing
-
General3 days agoUndergraduate Admission Lists 2026/2027
-
General1 week agoFreshers’ Joining Instructions 2026/2027
-
General1 week agoAdmission Lists for Postgraduate Programmes 2026/27
-
General1 week agoMakerere University Welcomes 2026/2027 Freshers
-
General1 week agoProf. Ssali makes strong case for Minutes Writing as MakWC Holds Staff Training