Murwanashyaka Theophile

• PhD
• Senior Lecturer at Kibogora Polytechnic

Plastic pollution poses a significant threat to ecosystem health worldwide. This study examines the determinants of environmental changes in human-modified ecosystems through a quantitative-qualitative system dynamics modeling approach: field experiments conducted on a 310 m² unsaturated clay-rich bed and a 2.5 m² clay-rich shore of a plastic-impac...

Cultivating microalgae with wastewater offers a dual-beneficial strategy for the removal of nutrients coupled with the accumulation of valuable bioproducts. However, the dynamic mass flow in heterotrophic algal growth is far less known than autotrophic mode. This study particularly provided a new insight into this process by modelling heterotrophic...

This chapter attempts to highlight and describe the current technologies published in recent studies, aimed to cut down on the cost ofmicroalgae downstream process, which thus in return can lead to the price reduction of microalgae-derived products including bioenergy products. Downstream processes of microalgal biomass into bioproducts are subdivi...

Global issues such as environmental degradation, hunger and malnutrition, poverty, antibiotic resistance, chronic diseases, depletion of fossil fuels and other issues associated with their utilization, among others, are burdening the global population's quality of life. Algal resources are well-positioned, prominent, and sustainable resources for p...

Global issues such as environmental degradation, hunger and malnutrition, poverty, antibiotic resistance, chronic diseases, depletion of fossil fuels and other issues associated with their utilization, among others, are burdening the global population’s quality of life. Algal resources are well-positioned, prominent, and sustainable resources for p...

The global demand for biomass for various purposes (i.e., food, biofuel, feed, and chemicals) is expected to increase in the coming future. Microalgae may complement agricultural crops as promising a new source of biomass. However, new low-cost harvesting technologies are needed to produce and process microalgae. A high pH-induced flocculation meth...

Increasing urbanization and industrialization have increased toxic levels of pollutants in the environment. Heterotrophic cultivation of microalgae eliminates the light requirement and provides the possibility to achieve fast cells growth and efficient removal of pollutants from wastewaters. In this study, effects of heavy metals (Cu and Cr) and N...

Heterotrophic microalgae, capable of converting organic carbons to biofuel, as well as assimilating nutrients, have a great prospective in wastewater treatment. Meanwhile, the knowledge about heterotrophic microalgae is still far less than the autotrophic conterpart. Hence, in this study, 20 heterotrophic microalgal strains were isolated from a dom...

Phycocyanin, a blue pigment, is a type of phycobiliproteins. Because of its various potential properties, phycocyanin is applied to various fields, such as nutraceutical, pharmaceutical, medicine, cosmetics, and biotechnological research. The cost and application of phycocyanin are highly dependent on its purity index. In this study, ammonium chlor...

Background: Nowadays, bioflocculation is considered as a potential technology that could be able to alleviate microalgae dewatering cost regarded as the cornerstone hindrance of their full-scale application. However, most bioflocculation studies reported are laboratory scales. This study examined a pilot-scale and in situ flocculation of freshwate...