Abubakar M. Bilyaminu
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9 records found
1
Application of various microalgal species for lipid production
Biotechnological and engineering aspects
Review
(2026)
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Mahmoud M. Habashy, Lu Li, Shaikh Ziauddin Ahammad, Ayushi Aggarwal, Shishir Kumar Behera, Abubakar M. Bilyaminu, Anina James, Eldon R. Rene, Lina S. Angulo-Mosquera, Büşra Bayar, Haris Nalakath Abubackar, Tugba Keskin, Mine Gungormusler, Md Abdullah Al Noman, Ashish K. Lohar, Prachi Ramesh Chavan
Lipids derived from algal biomass are important constituents of biofuels, nutraceuticals, cosmeceuticals, and animal feed, inter alia. This necessitates the identification and large-scale production of microalgal species that can serve as the biomass based raw material for the above-mentioned categories of bio-products. In this vein, this review sifts through the literature and describes the most promising microalgal species that synthesize lipids and, when subjected to specific conditions, show enhanced lipid production. Currently, Chlorella sp., Cyclotella sp., Neochloris oleoabundans, and Isochrysis galbana are the species with the highest lipid contents. The review mentions and discusses various bioreactor configurations that can be used for large-scale culturing of these microalgae in a comparative aspect. Various configurations of photobioreactors are suitable for high biomass and lipid productivity. Further, prominent strategies of lipid extraction from microalgae have been elaborated, from conventional techniques to the latest ones, comparing and contrasting their advantages and disadvantages. While solvent-based extractions may have their advantages, it would be prudent to explore more eco-friendly techniques for scale-up. Lastly, the review gives a comprehensive account of the biorefinery approach to culturing microalgae, emphasising the assessment of their economic performance using different software and models, such as the techno-economic assessment model. The application of tools such as multi-criteria decision analysis that assess energy technology could enable better optimization. Microalgae have the potential to be used as a renewable source of fuel and feed; therefore, it is incumbent on the scientific community to significantly reduce production costs while ensuring sustainability.
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Lipids derived from algal biomass are important constituents of biofuels, nutraceuticals, cosmeceuticals, and animal feed, inter alia. This necessitates the identification and large-scale production of microalgal species that can serve as the biomass based raw material for the above-mentioned categories of bio-products. In this vein, this review sifts through the literature and describes the most promising microalgal species that synthesize lipids and, when subjected to specific conditions, show enhanced lipid production. Currently, Chlorella sp., Cyclotella sp., Neochloris oleoabundans, and Isochrysis galbana are the species with the highest lipid contents. The review mentions and discusses various bioreactor configurations that can be used for large-scale culturing of these microalgae in a comparative aspect. Various configurations of photobioreactors are suitable for high biomass and lipid productivity. Further, prominent strategies of lipid extraction from microalgae have been elaborated, from conventional techniques to the latest ones, comparing and contrasting their advantages and disadvantages. While solvent-based extractions may have their advantages, it would be prudent to explore more eco-friendly techniques for scale-up. Lastly, the review gives a comprehensive account of the biorefinery approach to culturing microalgae, emphasising the assessment of their economic performance using different software and models, such as the techno-economic assessment model. The application of tools such as multi-criteria decision analysis that assess energy technology could enable better optimization. Microalgae have the potential to be used as a renewable source of fuel and feed; therefore, it is incumbent on the scientific community to significantly reduce production costs while ensuring sustainability.
The poultry processing sector in Southwest Nigeria is expanding rapidly, yet systematic evidence on sustainable waste management pathways remains fragmented. Existing studies largely document disposal practices without integrating sustainability frameworks or assessing comparative recovery technologies. This review addresses this gap by synthesizing peer-reviewed evidence on poultry waste streams, current management practices, environmental and public health impacts, and sustainable alternatives within a circular economy perspective. Using a systematic literature review of 15 peer-reviewed studies published between 2014 and 2025, which were obtained from Google Scholar, Scopus, and AJOL databases. The study applies thematic synthesis to identify dominant practices, structural barriers, and enabling conditions for resource recovery. Findings reveal a heavy reliance on open dumping, land application, and low-efficiency composting, driven by weak regulatory enforcement, limited technical capacity, and financial constraints. By comparatively assessing composting, anaerobic digestion, and energy recovery options, this review provides a structured sustainability-oriented synthesis that informs policy prioritization, technology selection, and future research directions for poultry waste management in Southwest Nigeria.
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The poultry processing sector in Southwest Nigeria is expanding rapidly, yet systematic evidence on sustainable waste management pathways remains fragmented. Existing studies largely document disposal practices without integrating sustainability frameworks or assessing comparative recovery technologies. This review addresses this gap by synthesizing peer-reviewed evidence on poultry waste streams, current management practices, environmental and public health impacts, and sustainable alternatives within a circular economy perspective. Using a systematic literature review of 15 peer-reviewed studies published between 2014 and 2025, which were obtained from Google Scholar, Scopus, and AJOL databases. The study applies thematic synthesis to identify dominant practices, structural barriers, and enabling conditions for resource recovery. Findings reveal a heavy reliance on open dumping, land application, and low-efficiency composting, driven by weak regulatory enforcement, limited technical capacity, and financial constraints. By comparatively assessing composting, anaerobic digestion, and energy recovery options, this review provides a structured sustainability-oriented synthesis that informs policy prioritization, technology selection, and future research directions for poultry waste management in Southwest Nigeria.
Review
(2025)
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P. Mullai, S.M. Sambavi, S. Vishali, K. Dharmalingam, S. Sutha, S. Dinesh, T. Anandhi, Md Abdullah Al Noman, Abubakar M. Bilyaminu, Anina James
As energy consumption and waste generation from human activities continue to rise, the technology of anaerobic digestion (AD), which converts waste into bioenergy, has gained popularity. Biogas produced from AD commonly contains 60 % CH4, 40 % CO2 and a minor fraction of impurities. Currently, several anaerobic reactors have been designed to upgrade the biogas with biomethane content above 90 %. This review summarizes the current trends in the biological upgradation of biogas from a bio-circular economy perspective to achieve sustainable energy goals. Examples of applications reporting the latest advancements in treating industrial effluents using high-rate anaerobic reactors have been mentioned. The integrated anaerobic-aerobic hybrid reactor offers a solution to the limitations of traditional methods in treating diverse effluents. A special focus on biological upgradation techniques such as in-situ, ex-situ, and hybrid mechanisms have been briefed. The key advantage of hybrid upgradation is its ability to address the pH rise during in-situ process. Additionally, the applications of artificial neural networks and optimization to upgrade biogas production have been discussed. The review concludes with future research directives with emphasis on the economic viability of the approaches.
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As energy consumption and waste generation from human activities continue to rise, the technology of anaerobic digestion (AD), which converts waste into bioenergy, has gained popularity. Biogas produced from AD commonly contains 60 % CH4, 40 % CO2 and a minor fraction of impurities. Currently, several anaerobic reactors have been designed to upgrade the biogas with biomethane content above 90 %. This review summarizes the current trends in the biological upgradation of biogas from a bio-circular economy perspective to achieve sustainable energy goals. Examples of applications reporting the latest advancements in treating industrial effluents using high-rate anaerobic reactors have been mentioned. The integrated anaerobic-aerobic hybrid reactor offers a solution to the limitations of traditional methods in treating diverse effluents. A special focus on biological upgradation techniques such as in-situ, ex-situ, and hybrid mechanisms have been briefed. The key advantage of hybrid upgradation is its ability to address the pH rise during in-situ process. Additionally, the applications of artificial neural networks and optimization to upgrade biogas production have been discussed. The review concludes with future research directives with emphasis on the economic viability of the approaches.
Treatment of Chlorinated Volatile Organic Compounds Using Different Bioreactor Systems
Microbial Communities and Pollutant Removal
Journal article
(2025)
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Divya Baskaran, Shishir Kumar Behera, Biswanath Mahanty, Mansi Aliveli, Amira Elmanadely, Abubakar M. Bilyaminu, Anina James, Eldon R. Rene, Ravi Rajamanickam
The industrial emission of chlorinated volatile organic compounds (Cl-VOCs) is a serious environmental hazard and creates significant health risks for humans. The physicochemical methods currently applied for removing Cl-VOCs are unsustainable due to high cost, inherent complexity, and formation of secondary toxic metabolites. For several decades, biological treatment of wastes has been considered the panacea. In this light, it seems promising to extend the application of bioremediation to treat Cl-VOCs. The current review provides a comprehensive update on the use of bioreactors such as biofilters, biotrickling filters, rotating biological contactors, scrubbers, and membrane bioreactors for the remediation of Cl-VOCs-laden industrial fumes. The integration of physicochemical processes with bioreactors would aid in overcoming the limitations of any individual process and enhance the degradation rate while ensuring the long-term stability of the system. As microbes play a pivotal role in bioreactor systems, various species involved in the remediation of Cl-VOCs are discussed. The diversity of the microbes influences the stability and functioning of the community, which necessitates the incorporation of bacteria and fungi, even algae, rotifers, and nematodes in the bioreactors. The review concludes with suggestions for future research considering the current challenges in realizing the full potential of bioreactors for treating Cl-VOCs.
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The industrial emission of chlorinated volatile organic compounds (Cl-VOCs) is a serious environmental hazard and creates significant health risks for humans. The physicochemical methods currently applied for removing Cl-VOCs are unsustainable due to high cost, inherent complexity, and formation of secondary toxic metabolites. For several decades, biological treatment of wastes has been considered the panacea. In this light, it seems promising to extend the application of bioremediation to treat Cl-VOCs. The current review provides a comprehensive update on the use of bioreactors such as biofilters, biotrickling filters, rotating biological contactors, scrubbers, and membrane bioreactors for the remediation of Cl-VOCs-laden industrial fumes. The integration of physicochemical processes with bioreactors would aid in overcoming the limitations of any individual process and enhance the degradation rate while ensuring the long-term stability of the system. As microbes play a pivotal role in bioreactor systems, various species involved in the remediation of Cl-VOCs are discussed. The diversity of the microbes influences the stability and functioning of the community, which necessitates the incorporation of bacteria and fungi, even algae, rotifers, and nematodes in the bioreactors. The review concludes with suggestions for future research considering the current challenges in realizing the full potential of bioreactors for treating Cl-VOCs.
Journal article
(2024)
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A.M. Bilyaminu, E.R. Rene, A. Pandey, S. Babel, Q.B. Clement, A. James, H.G. Hernandez
The establishment of industrial parks has functioned as a catalyst for sustained economic growth and industrial advancement in Nigeria, mirroring trends observed in industrialized countries globally. However, no attention has been given to the conversion of existing industrial parks to eco-industrial parks (EIPs) to address the environmental challenges caused by increased industrialization in the country. This paper presents an assessment of opportunities for environmental protection through eco-industrial transformation in Nigeria, specifically focusing on the case of Sharada Industrial Park (SIP). The study applies the international eco-industrial park (EIP) framework to evaluate the current and intended performance of the park and identify opportunities for its conversion into an EIP, through an on-site tour of the park and interviews with the park managers. Similarly, questionnaires were used to assess the readiness of eco-industrial transformation in the country. The assessment of SIP's performance against the EIP framework reveals a concerning lack of compliance, with only 39 % of the performance indicators being met. This translates to several issues including resource inefficiency, increased pollution, higher operating costs and environmental non-compliance for the resident industries in SIP. Key opportunities for the transformation of SIP into an EIP were identified, including the diversity of industries in the park, existing infrastructure and renewable energy integration. These opportunities represent the potential for the establishment of sustainable industrial ecosystems in Nigeria. Tailored strategies for compliance, including policy reforms and stakeholder engagement, are recommended to drive eco-industrial transformation and foster a sustainable and circular manufacturing sector in Nigeria. It is also recommended that future research should investigate the drivers and barriers of industrial symbiosis (IS) and circular economy practices within industrial parks, alongside material flow analysis to determine synergy opportunities.
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The establishment of industrial parks has functioned as a catalyst for sustained economic growth and industrial advancement in Nigeria, mirroring trends observed in industrialized countries globally. However, no attention has been given to the conversion of existing industrial parks to eco-industrial parks (EIPs) to address the environmental challenges caused by increased industrialization in the country. This paper presents an assessment of opportunities for environmental protection through eco-industrial transformation in Nigeria, specifically focusing on the case of Sharada Industrial Park (SIP). The study applies the international eco-industrial park (EIP) framework to evaluate the current and intended performance of the park and identify opportunities for its conversion into an EIP, through an on-site tour of the park and interviews with the park managers. Similarly, questionnaires were used to assess the readiness of eco-industrial transformation in the country. The assessment of SIP's performance against the EIP framework reveals a concerning lack of compliance, with only 39 % of the performance indicators being met. This translates to several issues including resource inefficiency, increased pollution, higher operating costs and environmental non-compliance for the resident industries in SIP. Key opportunities for the transformation of SIP into an EIP were identified, including the diversity of industries in the park, existing infrastructure and renewable energy integration. These opportunities represent the potential for the establishment of sustainable industrial ecosystems in Nigeria. Tailored strategies for compliance, including policy reforms and stakeholder engagement, are recommended to drive eco-industrial transformation and foster a sustainable and circular manufacturing sector in Nigeria. It is also recommended that future research should investigate the drivers and barriers of industrial symbiosis (IS) and circular economy practices within industrial parks, alongside material flow analysis to determine synergy opportunities.
Journal article
(2024)
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A. James, E.R. Rene, A.M. Bilyaminu, P.V. Chellam
Globally, air pollution is an unfortunate aftermath of rapid industrialization and urbanization. Although the best strategy is to prevent air pollution, it is not always feasible. This makes it imperative to devise and implement techniques that can clean the air continuously. Plants and microbes have a natural potential to transform or degrade pollutants. Hence, strategies that use this potential of living biomass to remediate air pollution seem to be promising. The simplest future trend can be planting suitable plant-microbe species capable of removing air pollutants like SO2, CO2, CO, NOX and particulate matter (PM) along roadsides and inside the buildings. Established wastewater treatment strategies such as microbial fuel cells (MFC) and constructed wetlands (CW) can be suitably modified to ameliorate air pollution. Green architecture involving green walls and green roofs is facile and aesthetic, providing urban ecosystem services. Certain microbe-based bioreactors such as bioscrubbers and biofilters may be useful in small confined spaces. Several generative models have been developed to assist with planning and managing green spaces in urban locales. The physiological limitations of using living organisms can be circumvent by applying biotechnology and transgenics to improve their potential. This review provides a comprehensive update on not just the plants and associated microbes for the mitigation of air pollution, but also lists the technologies that are available and/or can be modified and used for air pollution control. The article also gives a detailed analysis of this topic in the form of strengths-weaknesses-opportunities-challenges (SWOC). The strategies mentioned in this review would help to attain corporate Environmental Social and Governance (ESG) and Sustainable Development Goals (SDGs), while reducing carbon footprint in the urban scenario. The review aims to emphasise that urbanization is possible while tackling air pollution using facile, green techniques involving plants and associated microbes.
...
Globally, air pollution is an unfortunate aftermath of rapid industrialization and urbanization. Although the best strategy is to prevent air pollution, it is not always feasible. This makes it imperative to devise and implement techniques that can clean the air continuously. Plants and microbes have a natural potential to transform or degrade pollutants. Hence, strategies that use this potential of living biomass to remediate air pollution seem to be promising. The simplest future trend can be planting suitable plant-microbe species capable of removing air pollutants like SO2, CO2, CO, NOX and particulate matter (PM) along roadsides and inside the buildings. Established wastewater treatment strategies such as microbial fuel cells (MFC) and constructed wetlands (CW) can be suitably modified to ameliorate air pollution. Green architecture involving green walls and green roofs is facile and aesthetic, providing urban ecosystem services. Certain microbe-based bioreactors such as bioscrubbers and biofilters may be useful in small confined spaces. Several generative models have been developed to assist with planning and managing green spaces in urban locales. The physiological limitations of using living organisms can be circumvent by applying biotechnology and transgenics to improve their potential. This review provides a comprehensive update on not just the plants and associated microbes for the mitigation of air pollution, but also lists the technologies that are available and/or can be modified and used for air pollution control. The article also gives a detailed analysis of this topic in the form of strengths-weaknesses-opportunities-challenges (SWOC). The strategies mentioned in this review would help to attain corporate Environmental Social and Governance (ESG) and Sustainable Development Goals (SDGs), while reducing carbon footprint in the urban scenario. The review aims to emphasise that urbanization is possible while tackling air pollution using facile, green techniques involving plants and associated microbes.
Journal article
(2024)
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Alejandro Barragán-Ocaña, Paz Silva-Borjas, Erick Cecilio-Ayala, Harry Esmith Guzmán-Guzmán, Abubakar M. Bilyaminu, Eldon R. Rene
Industrial development has resulted in economic progress and the well-being of the society. At the same time, the impact of the industrial complex has disrupted the environment and resulted in climate change related impacts. The purpose of this study was to carry out an exploratory diagnosis and propose a technological change and sustainable industrial development index at the international level. Therefore, a network study was conducted to identify the main nodes and thematic clusters associated with cleaner production. A patent analysis was applied to technologies related three selected/relevant areas of cleaner production, i.e. carbon footprint, wastewater treatment, and renewable energy. Additionally, based on factor analysis, an index including different indicators related to scientific, technological, economic, environmental, and social issues was developed and proposed in this study.
...
Industrial development has resulted in economic progress and the well-being of the society. At the same time, the impact of the industrial complex has disrupted the environment and resulted in climate change related impacts. The purpose of this study was to carry out an exploratory diagnosis and propose a technological change and sustainable industrial development index at the international level. Therefore, a network study was conducted to identify the main nodes and thematic clusters associated with cleaner production. A patent analysis was applied to technologies related three selected/relevant areas of cleaner production, i.e. carbon footprint, wastewater treatment, and renewable energy. Additionally, based on factor analysis, an index including different indicators related to scientific, technological, economic, environmental, and social issues was developed and proposed in this study.
Application of artificial intelligence tools in wastewater and waste gas treatment systems
Recent advances and prospects
Review
(2024)
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Shishir Kumar Behera, S. Karthika, Eldon R. Rene, Biswanath Mahanty, Saroj K. Meher, Mohd Zafar, Divya Baskaran, Ravi Rajamanickam, Raja Das, Kannan Pakshirajan, Abubakar M. Bilyaminu
The non-linear complex relationships among the process variables in wastewater and waste gas treatment systems possess a significant challenge for real-time systems modelling. Data driven artificial intelligence (AI) tools are increasingly being adopted to predict the process performance, cost-effective process monitoring, and the control of different waste treatment systems, including those involving resource recovery. This review presents an in-depth analysis of the applications of emerging AI tools in physico-chemical and biological processes for the treatment of air pollutants, water and wastewater, and resource recovery processes. Additionally, the successful implementation of AI-controlled wastewater and waste gas treatment systems, along with real-time monitoring at the industrial scale are discussed.
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The non-linear complex relationships among the process variables in wastewater and waste gas treatment systems possess a significant challenge for real-time systems modelling. Data driven artificial intelligence (AI) tools are increasingly being adopted to predict the process performance, cost-effective process monitoring, and the control of different waste treatment systems, including those involving resource recovery. This review presents an in-depth analysis of the applications of emerging AI tools in physico-chemical and biological processes for the treatment of air pollutants, water and wastewater, and resource recovery processes. Additionally, the successful implementation of AI-controlled wastewater and waste gas treatment systems, along with real-time monitoring at the industrial scale are discussed.
Journal article
(2024)
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J. Julkipli, S. Babel, A.M. Bilyaminu, E.R. Rene
The rising food waste generation induces major issues of food security, pollution, and depletion of resources and arable land, thus calling for novel recycling practices such as converting food waste into fuels. Here we review the production of dihydrogen, thereafter named ‘hydrogen,’ and biodiesel from food waste, with focus on food waste composition and hydrolysis, hydrogen production and biodiesel production. Hydrogen production is done by dark fermentation and photofermentation. Biodiesel is produced by production of lipid-rich biomass using food waste and transesterification. We discuss lipids accumulation in oleaginous microorganisms and in black soldier fly larvae. Upscaling of hydrogen and biodiesel production is also presented. Optimal hydrogen yield ranges from 1 to 7 mol H2/mol hexose. After fermentation, the residual glucose should be less than 10% and volatile fatty acids should be less than 40%. Biomass lipids containing less than 1% polyunsaturated fatty acids is ideal for biodiesel production.
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The rising food waste generation induces major issues of food security, pollution, and depletion of resources and arable land, thus calling for novel recycling practices such as converting food waste into fuels. Here we review the production of dihydrogen, thereafter named ‘hydrogen,’ and biodiesel from food waste, with focus on food waste composition and hydrolysis, hydrogen production and biodiesel production. Hydrogen production is done by dark fermentation and photofermentation. Biodiesel is produced by production of lipid-rich biomass using food waste and transesterification. We discuss lipids accumulation in oleaginous microorganisms and in black soldier fly larvae. Upscaling of hydrogen and biodiesel production is also presented. Optimal hydrogen yield ranges from 1 to 7 mol H2/mol hexose. After fermentation, the residual glucose should be less than 10% and volatile fatty acids should be less than 40%. Biomass lipids containing less than 1% polyunsaturated fatty acids is ideal for biodiesel production.