I am a young researcher trying to figure out green energy to reduce carbon emission. For sustainable development and cost management will also be found out in my research.
A combined process of microwave irradiation and TOPO coordination leads to a substantially low de... more A combined process of microwave irradiation and TOPO coordination leads to a substantially low defect density and thus suppressed non-radiative recombination owing to the in situ passivation of bulk and surface defects during the crystal growth.
Enzymatic hydrolysis of waste biomass for bioethanol production is considered a decades old tradi... more Enzymatic hydrolysis of waste biomass for bioethanol production is considered a decades old traditional, inexpensive, and energy-effective approach. In this study, waste office paper was pretreated with diluted sulfuric acid (H2SO4) and hydrolyzed with one of the most available and cost-effective enzymes, cellulase derived from Trichoderma reesei, under submerged static condition. Three different pretreatment approaches—cut into 2 cm2, blended with distilled water, and pretreated with diluted H2SO4—have been implemented, and pretreatment with diluted H2SO4 was the most effective. Hydrolysis with different concentrations—0.5 M, 1.0 M, 1.5 M, 2.0 M of H2SO4—was performed. The maximum glucose content was obtained at 2.0 M H2SO4 at 90 min reaction time, and glucose yield was 0.11 g glucose/g wastepaper. The cut paper, wet-blended, and acid-treated wastepaper was hydrolyzed with cellulase enzyme for 2, 4, and 5 consecutive days with 5 mg, 10 mg, 15 mg, and 20 mg enzyme loadings. The maximum glucose content obtained was 9.75 g/l from acid-treated wastepaper, after 5 days of enzymatic hydrolysis with 20 mg enzyme loading and a glucose yield of a 0.5 g glucose/g wastepaper. The wastepaper hydrolysate was further fermented for 6, 8, and 10 hours continuously with Saccharomyces cerevisiae (yeast), and at 10 hours of fermentation, the maximum glucose consumption was 0.18 g by yeast. Further, HPLC analysis of the fermented medium presented a strong peak of bioethanol content at 16.12 min. The distillation of bioethanol by rotary evaporator presented 0.79 ml bioethanol/fermented solution, which indicated the conversion efficiency of 79%.
A combined process of microwave irradiation and TOPO coordination leads to a substantially low de... more A combined process of microwave irradiation and TOPO coordination leads to a substantially low defect density and thus suppressed non-radiative recombination owing to the in situ passivation of bulk and surface defects during the crystal growth.
Emerging Water Pollutants: Concerns and Remediation Technologies
: Pharmaceuticals and personal care products (PCPs) are chemically modified products mostly used ... more : Pharmaceuticals and personal care products (PCPs) are chemically modified products mostly used for beauty, cleaning, or health, such as disinfectants, fragrances, insect repellents, ultraviolet (UV) filters, and others. Due to the contamination caused by these chemically amended PCPs, water pollution has appeared as a hazardous condition for the water treatment and supply sector. A recent concern is that when these chemical compounds combine with water, they act as water pollutants and harm aquatic lives and the survival of human lives. Nowadays, the concern of water pollution by these chemicals is confined to water treatment complexities this contamination is leaving adverse effects on the environment. Most of these water pollutants borne by sewage effluents through wastewater plants develop because of the insufficient removal from treatment plants. Therefore, the emerging water pollutants caused by PCPs are responsible for environmental pollution. Hence, this chapter emphasized the state-of-the-art global application of PCPs, the mechanism of water pollution by PCPs, possible biohazards, and negative impacts on the environment. Besides that, various types of PCPs, along with the most applied chemical compounds in PCPs, have been discussed in this chapter. To minimize the contamination, suitable removal methods to enhance the removal efficacy have been discussed. The chapter also presents a future perspective for reducing the PCP contamination of surface water with cutting-edge technologies and wastewater treatment.
In metal halide perovskites, charge transport in the bulk of the films is influenced by trapping ... more In metal halide perovskites, charge transport in the bulk of the films is influenced by trapping and release and nonradiative recombination at ionic and crystal defects. Thus, mitigating the formation of defects during the synthesis process of perovskites from precursors is required for better device performance. An in-depth understanding of the nucleation and growth mechanisms of perovskite layers is crucial for the successful solution processing of organic–inorganic perovskite thin films for optoelectronic applications. In particular, heterogeneous nucleation, which occurs at the interface, must be understood in detail, as it has an effect on the bulk properties of perovskites. This review presents a detailed discussion on the controlled nucleation and growth kinetics of interfacial perovskite crystal growth. Heterogeneous nucleation kinetics can be controlled by modifying the perovskite solution and the interfacial properties of perovskites adjacent to the underlaying layer and t...
Abstract During this industrialized era, consumption of high-speed diesel (HSD) is increasing rap... more Abstract During this industrialized era, consumption of high-speed diesel (HSD) is increasing rapidly in the power, transportation, agriculture, and other commercial sectors of Bangladesh, albeit a significant amount of HSD is imported from foreign countries. The fuel mono-dependency on imported HSD demands huge economic investment of any country that consequences a negative impact on the cash flow of the overall economy. This study emphasized the contribution of HSD from petroleum products in significant fields and provided the current scenario of diesel import. Besides fuel issues, the other major environmental concern of Bangladesh is tremendous carbon emission caused by the overuse of diesel that consequences severe environmental pollution. To minimize the investment in imported HSD as well as environmental pollution, an alternative fuel, biodiesel generation, has been proposed in this study. This study also projected the total approximate biodiesel production from chicken skin collected from the whole of Bangladesh. Besides, this study also predicted the possible amount of can be replaced by biodiesel from chicken skin and aimed at the cost reduction due to the replacement of diesel by biodiesel.
This study outlined the potential of biodiesel production from chicken fat waste and electricity ... more This study outlined the potential of biodiesel production from chicken fat waste and electricity generation from biodiesel on the scenario of remote region, Kuakata, located at southeastern Bangladesh based on the cost comparison between diesel and biodiesel-based power generation by HOMER software. The main objective of this case study was to address an integrated simulation-based research outcome to manage chicken skin waste (fat) for biodiesel, generate electricity from the biodiesel and present the potential of greenhouse gas (GHG) reduction from environment by product implementation. Approximate electric load profile of Kuakata and comprehensive emission modeling for this region has been performed by fuel-switching model and RETScreen Expert software. The simulation outcomes presented that 492,695 L/ year biodiesel can be produced from chicken skin waste in Kuakata and converted into 883 MWh electricity per annum. The operating cost was 188,062 $/year, and cost of energy production was 0.214 $/kWh. The outcomes from this simulation modeling also demonstrated that the annual fuel consumption for base case is 3.7 kWh/m 2 while 1.5 kWh/m 2 is for proposed case with the reduction of 2.2 kWh/m 2 per year. The calculation and simulation results also presented 70.3% GHG reduction in the region which presented drastic drop of environmental pollution.
Abstract The current study's main objective is to apply energy, exergy, & sustainability ... more Abstract The current study's main objective is to apply energy, exergy, & sustainability analysis and provide suggestions to improve the sustainability of the commercial sector of Bangladesh. Data from 2000 to 2014 is analyzed, and it is found that the estimated energy efficiencies range from 65.42% to 68.5%, while exergy efficiencies range from 10.79% to 11.49%. Depletion number, sustainability index, lack of productivity, relative irreversibility, waste exergy ratio, environmental effect factor, & environmental destruction coefficient are utilized as sustainability indicators. From the study, it is found that sustainability index varies between 1.12 and 1.13, while relative irreversibility varies between 0.44 and 0.53. Lack of productivity is found to be higher for cooking appliances and varies from 3.52 to 4.06. Waste exergy ratio and environmental effect factor are found to be higher for electrical appliances. For electrical appliances, waste exergy ratio varies from 0.42 to 0.50 and environmental effect factor varies from 3.5 to 4.55. Environmental destruction coefficient reaches as high as 9.27. It is determined that Bangladesh's commercial sector is more sustainable compared to Turkey, Japan, Saudi Arabia, and Malaysia but less sustainable than Norway, and Sweden. Utilization of energy efficient lighting, waste energy management, and replacing gas-fired cooking stoves with electrical appliances are provided as recommendations to reduce exergy loss. The study outcome reveals that increasing exergy efficiencies can ensure a sustainable commercial sector.
Enzymatic hydrolysis of waste biomass for bioethanol production is considered a traditional, inex... more Enzymatic hydrolysis of waste biomass for bioethanol production is considered a traditional, inexpensive, and energy-effective approach decades ago. In the present study, waste office paper was pretreated with diluted sulfuric acid (H2SO4) and hydrolysed with one of the most available and cost-effective enzymes, cellulase from Trichoderma reesei, under submerged static condition. Wastepaper size was reduced to 2cm2, blended with water and dry wet-blended, and pretreated with diluted H2SO4. Among different concentrations (0.5M, 1.0M, 1.5M, 2.0M) of H2SO4, the maximum glucose content was obtained at 2.0M H2SO4 at 90 min reaction time, and glucose yield was 0.11g glucose/g wastepaper. The cut paper, wet-blended, and acid-treated wastepaper was hydrolysed with cellulase enzyme for 2, 4, and 5 consecutive days with 5mg, 10mg, 15mg, and 20mg enzyme loadings. The maximum glucose content was obtained, 9.75g/l after 5 days of enzymatic hydrolysis with 20mg enzyme loading and a glucose yield ...
From the slaughtering and processing of livestock, a huge amount of animal discards are produced.... more From the slaughtering and processing of livestock, a huge amount of animal discards are produced. Much of this waste biomass is animal fat and skin and these discards can be used to produce biodiesel. In this study, chicken skin was used as raw materials for biodiesel production. Chicken skin was extracted from a local shop and subjected to transesterification. The products of transesterification were Fatty acid methyl esters (FAME) and glycerol. After separating glycerol it was observed that the yield percentage was 35%. Then FAME produced was tested for two parameters namely calorific value, Kinematic viscosity.
Advanced Technology for the Conversion of Waste into Fuels and Chemicals, 2021
Food waste (FW) utilization has been harnessed in the recent decades for biofuel production world... more Food waste (FW) utilization has been harnessed in the recent decades for biofuel production worldwide due to sustainable environmental concern. To attain the upcoming circular economy goal, FW sources have been emphasized notably for biofuel production in several regions of the world. Currently, research has been focused on the advancement of FW conversion technologies. The application of machine learning has been manifested as an eminent innovation to encounter this phenomenon. In many regions worldwide, FWs generated from households, restaurants are dumped in landfills or incinerated to recover energy circular economy and sustainable environment. Therefore, this chapter demonstrated the global FW scenario, related concerns, and several biofuels generated from waste. Various conversion technologies for FW conversion to biofuel production such as biodiesel, bioethanol, methane, hydrogen have been extensively elaborated in this chapter. This chapter also provides a detailed overview ...
Advanced Technology for the Conversion of Waste into Fuels and Chemicals, 2021
In this present era, amount of diverse types of waste is increasing day by day. For the insuffici... more In this present era, amount of diverse types of waste is increasing day by day. For the insufficient and improper management of waste recycle system, global environment is being polluted tremendously. Every year, approximately 2.12 billion tonnes, a massive amount of waste is being dumped to the open environment worldwide. In this alarming scenario, as intensity of carbon emission is intensified, invention of bioenergy is hailed as a great accomplishment to transform waste to green energy that is environment-friendly and as well as sustainable. In this chapter, a worldwide scenario of both organic and inorganic wastes such as plastics, rubbers, e-waste, numerous biomass wastes, and others has been discussed comprehensively. Various conversion technologies: esterification, trans-esterification, anaerobic digestion, catalytic pyrolysis, and others are emphasized simultaneously in this study. This chapter also highlights perspective and economic potential of different forms of bioenerg...
One of the dominating meat supply industries, the poultry chicken sector, is facing waste managem... more One of the dominating meat supply industries, the poultry chicken sector, is facing waste management concerns worldwide. Due to high oil content containment, biofuel researchers emphasized poultry waste as abundant, cheap, and high-quality feedstock for biodiesel production. Therefore, in the current study, an experimental investigation of biodiesel production from wasted chicken skin through the transesterification process has been performed. The chicken skin used in this study for biodiesel production can be used as the potential waste source for biodiesel production worldwide. Techno-economic, environmental, and sustainability analyses were also performed. During the synthesis, the reaction was conducted with potassium hydroxide (KOH), and the process yielded 48% biodiesel. The cost of electricity for providing electricity is estimated at US$0.575 per kWh when an auto-sized generator has been fueled by biodiesel. The environmental and substantiality analysis found that biodiesel is more suitable than conventional diesel as an environmentally friendly and sustainable fuel.
Combustion of fossil fuels results in high emission of green house gas. Besides it also results i... more Combustion of fossil fuels results in high emission of green house gas. Besides it also results in shortage of fossil fuels So, it is necessary to look for alternate solution. Biomass is a renewable source which is abundant in nature. Combustion of biomass produces gas which can be used to generate electricity. In this study, a simulation has been done by RETScreen software to find out the economic viability of 3MW biomass based power plant in Chittagong. From simulation it is found that electricity export to grid from plant is 23,915 MWh and revenue earned by selling electricity is $2,391 480.It was also observed that the proposed system reduces 13000 tonne CO2 annually.
A combined process of microwave irradiation and TOPO coordination leads to a substantially low de... more A combined process of microwave irradiation and TOPO coordination leads to a substantially low defect density and thus suppressed non-radiative recombination owing to the in situ passivation of bulk and surface defects during the crystal growth.
Enzymatic hydrolysis of waste biomass for bioethanol production is considered a decades old tradi... more Enzymatic hydrolysis of waste biomass for bioethanol production is considered a decades old traditional, inexpensive, and energy-effective approach. In this study, waste office paper was pretreated with diluted sulfuric acid (H2SO4) and hydrolyzed with one of the most available and cost-effective enzymes, cellulase derived from Trichoderma reesei, under submerged static condition. Three different pretreatment approaches—cut into 2 cm2, blended with distilled water, and pretreated with diluted H2SO4—have been implemented, and pretreatment with diluted H2SO4 was the most effective. Hydrolysis with different concentrations—0.5 M, 1.0 M, 1.5 M, 2.0 M of H2SO4—was performed. The maximum glucose content was obtained at 2.0 M H2SO4 at 90 min reaction time, and glucose yield was 0.11 g glucose/g wastepaper. The cut paper, wet-blended, and acid-treated wastepaper was hydrolyzed with cellulase enzyme for 2, 4, and 5 consecutive days with 5 mg, 10 mg, 15 mg, and 20 mg enzyme loadings. The maximum glucose content obtained was 9.75 g/l from acid-treated wastepaper, after 5 days of enzymatic hydrolysis with 20 mg enzyme loading and a glucose yield of a 0.5 g glucose/g wastepaper. The wastepaper hydrolysate was further fermented for 6, 8, and 10 hours continuously with Saccharomyces cerevisiae (yeast), and at 10 hours of fermentation, the maximum glucose consumption was 0.18 g by yeast. Further, HPLC analysis of the fermented medium presented a strong peak of bioethanol content at 16.12 min. The distillation of bioethanol by rotary evaporator presented 0.79 ml bioethanol/fermented solution, which indicated the conversion efficiency of 79%.
A combined process of microwave irradiation and TOPO coordination leads to a substantially low de... more A combined process of microwave irradiation and TOPO coordination leads to a substantially low defect density and thus suppressed non-radiative recombination owing to the in situ passivation of bulk and surface defects during the crystal growth.
Emerging Water Pollutants: Concerns and Remediation Technologies
: Pharmaceuticals and personal care products (PCPs) are chemically modified products mostly used ... more : Pharmaceuticals and personal care products (PCPs) are chemically modified products mostly used for beauty, cleaning, or health, such as disinfectants, fragrances, insect repellents, ultraviolet (UV) filters, and others. Due to the contamination caused by these chemically amended PCPs, water pollution has appeared as a hazardous condition for the water treatment and supply sector. A recent concern is that when these chemical compounds combine with water, they act as water pollutants and harm aquatic lives and the survival of human lives. Nowadays, the concern of water pollution by these chemicals is confined to water treatment complexities this contamination is leaving adverse effects on the environment. Most of these water pollutants borne by sewage effluents through wastewater plants develop because of the insufficient removal from treatment plants. Therefore, the emerging water pollutants caused by PCPs are responsible for environmental pollution. Hence, this chapter emphasized the state-of-the-art global application of PCPs, the mechanism of water pollution by PCPs, possible biohazards, and negative impacts on the environment. Besides that, various types of PCPs, along with the most applied chemical compounds in PCPs, have been discussed in this chapter. To minimize the contamination, suitable removal methods to enhance the removal efficacy have been discussed. The chapter also presents a future perspective for reducing the PCP contamination of surface water with cutting-edge technologies and wastewater treatment.
In metal halide perovskites, charge transport in the bulk of the films is influenced by trapping ... more In metal halide perovskites, charge transport in the bulk of the films is influenced by trapping and release and nonradiative recombination at ionic and crystal defects. Thus, mitigating the formation of defects during the synthesis process of perovskites from precursors is required for better device performance. An in-depth understanding of the nucleation and growth mechanisms of perovskite layers is crucial for the successful solution processing of organic–inorganic perovskite thin films for optoelectronic applications. In particular, heterogeneous nucleation, which occurs at the interface, must be understood in detail, as it has an effect on the bulk properties of perovskites. This review presents a detailed discussion on the controlled nucleation and growth kinetics of interfacial perovskite crystal growth. Heterogeneous nucleation kinetics can be controlled by modifying the perovskite solution and the interfacial properties of perovskites adjacent to the underlaying layer and t...
Abstract During this industrialized era, consumption of high-speed diesel (HSD) is increasing rap... more Abstract During this industrialized era, consumption of high-speed diesel (HSD) is increasing rapidly in the power, transportation, agriculture, and other commercial sectors of Bangladesh, albeit a significant amount of HSD is imported from foreign countries. The fuel mono-dependency on imported HSD demands huge economic investment of any country that consequences a negative impact on the cash flow of the overall economy. This study emphasized the contribution of HSD from petroleum products in significant fields and provided the current scenario of diesel import. Besides fuel issues, the other major environmental concern of Bangladesh is tremendous carbon emission caused by the overuse of diesel that consequences severe environmental pollution. To minimize the investment in imported HSD as well as environmental pollution, an alternative fuel, biodiesel generation, has been proposed in this study. This study also projected the total approximate biodiesel production from chicken skin collected from the whole of Bangladesh. Besides, this study also predicted the possible amount of can be replaced by biodiesel from chicken skin and aimed at the cost reduction due to the replacement of diesel by biodiesel.
This study outlined the potential of biodiesel production from chicken fat waste and electricity ... more This study outlined the potential of biodiesel production from chicken fat waste and electricity generation from biodiesel on the scenario of remote region, Kuakata, located at southeastern Bangladesh based on the cost comparison between diesel and biodiesel-based power generation by HOMER software. The main objective of this case study was to address an integrated simulation-based research outcome to manage chicken skin waste (fat) for biodiesel, generate electricity from the biodiesel and present the potential of greenhouse gas (GHG) reduction from environment by product implementation. Approximate electric load profile of Kuakata and comprehensive emission modeling for this region has been performed by fuel-switching model and RETScreen Expert software. The simulation outcomes presented that 492,695 L/ year biodiesel can be produced from chicken skin waste in Kuakata and converted into 883 MWh electricity per annum. The operating cost was 188,062 $/year, and cost of energy production was 0.214 $/kWh. The outcomes from this simulation modeling also demonstrated that the annual fuel consumption for base case is 3.7 kWh/m 2 while 1.5 kWh/m 2 is for proposed case with the reduction of 2.2 kWh/m 2 per year. The calculation and simulation results also presented 70.3% GHG reduction in the region which presented drastic drop of environmental pollution.
Abstract The current study's main objective is to apply energy, exergy, & sustainability ... more Abstract The current study's main objective is to apply energy, exergy, & sustainability analysis and provide suggestions to improve the sustainability of the commercial sector of Bangladesh. Data from 2000 to 2014 is analyzed, and it is found that the estimated energy efficiencies range from 65.42% to 68.5%, while exergy efficiencies range from 10.79% to 11.49%. Depletion number, sustainability index, lack of productivity, relative irreversibility, waste exergy ratio, environmental effect factor, & environmental destruction coefficient are utilized as sustainability indicators. From the study, it is found that sustainability index varies between 1.12 and 1.13, while relative irreversibility varies between 0.44 and 0.53. Lack of productivity is found to be higher for cooking appliances and varies from 3.52 to 4.06. Waste exergy ratio and environmental effect factor are found to be higher for electrical appliances. For electrical appliances, waste exergy ratio varies from 0.42 to 0.50 and environmental effect factor varies from 3.5 to 4.55. Environmental destruction coefficient reaches as high as 9.27. It is determined that Bangladesh's commercial sector is more sustainable compared to Turkey, Japan, Saudi Arabia, and Malaysia but less sustainable than Norway, and Sweden. Utilization of energy efficient lighting, waste energy management, and replacing gas-fired cooking stoves with electrical appliances are provided as recommendations to reduce exergy loss. The study outcome reveals that increasing exergy efficiencies can ensure a sustainable commercial sector.
Enzymatic hydrolysis of waste biomass for bioethanol production is considered a traditional, inex... more Enzymatic hydrolysis of waste biomass for bioethanol production is considered a traditional, inexpensive, and energy-effective approach decades ago. In the present study, waste office paper was pretreated with diluted sulfuric acid (H2SO4) and hydrolysed with one of the most available and cost-effective enzymes, cellulase from Trichoderma reesei, under submerged static condition. Wastepaper size was reduced to 2cm2, blended with water and dry wet-blended, and pretreated with diluted H2SO4. Among different concentrations (0.5M, 1.0M, 1.5M, 2.0M) of H2SO4, the maximum glucose content was obtained at 2.0M H2SO4 at 90 min reaction time, and glucose yield was 0.11g glucose/g wastepaper. The cut paper, wet-blended, and acid-treated wastepaper was hydrolysed with cellulase enzyme for 2, 4, and 5 consecutive days with 5mg, 10mg, 15mg, and 20mg enzyme loadings. The maximum glucose content was obtained, 9.75g/l after 5 days of enzymatic hydrolysis with 20mg enzyme loading and a glucose yield ...
From the slaughtering and processing of livestock, a huge amount of animal discards are produced.... more From the slaughtering and processing of livestock, a huge amount of animal discards are produced. Much of this waste biomass is animal fat and skin and these discards can be used to produce biodiesel. In this study, chicken skin was used as raw materials for biodiesel production. Chicken skin was extracted from a local shop and subjected to transesterification. The products of transesterification were Fatty acid methyl esters (FAME) and glycerol. After separating glycerol it was observed that the yield percentage was 35%. Then FAME produced was tested for two parameters namely calorific value, Kinematic viscosity.
Advanced Technology for the Conversion of Waste into Fuels and Chemicals, 2021
Food waste (FW) utilization has been harnessed in the recent decades for biofuel production world... more Food waste (FW) utilization has been harnessed in the recent decades for biofuel production worldwide due to sustainable environmental concern. To attain the upcoming circular economy goal, FW sources have been emphasized notably for biofuel production in several regions of the world. Currently, research has been focused on the advancement of FW conversion technologies. The application of machine learning has been manifested as an eminent innovation to encounter this phenomenon. In many regions worldwide, FWs generated from households, restaurants are dumped in landfills or incinerated to recover energy circular economy and sustainable environment. Therefore, this chapter demonstrated the global FW scenario, related concerns, and several biofuels generated from waste. Various conversion technologies for FW conversion to biofuel production such as biodiesel, bioethanol, methane, hydrogen have been extensively elaborated in this chapter. This chapter also provides a detailed overview ...
Advanced Technology for the Conversion of Waste into Fuels and Chemicals, 2021
In this present era, amount of diverse types of waste is increasing day by day. For the insuffici... more In this present era, amount of diverse types of waste is increasing day by day. For the insufficient and improper management of waste recycle system, global environment is being polluted tremendously. Every year, approximately 2.12 billion tonnes, a massive amount of waste is being dumped to the open environment worldwide. In this alarming scenario, as intensity of carbon emission is intensified, invention of bioenergy is hailed as a great accomplishment to transform waste to green energy that is environment-friendly and as well as sustainable. In this chapter, a worldwide scenario of both organic and inorganic wastes such as plastics, rubbers, e-waste, numerous biomass wastes, and others has been discussed comprehensively. Various conversion technologies: esterification, trans-esterification, anaerobic digestion, catalytic pyrolysis, and others are emphasized simultaneously in this study. This chapter also highlights perspective and economic potential of different forms of bioenerg...
One of the dominating meat supply industries, the poultry chicken sector, is facing waste managem... more One of the dominating meat supply industries, the poultry chicken sector, is facing waste management concerns worldwide. Due to high oil content containment, biofuel researchers emphasized poultry waste as abundant, cheap, and high-quality feedstock for biodiesel production. Therefore, in the current study, an experimental investigation of biodiesel production from wasted chicken skin through the transesterification process has been performed. The chicken skin used in this study for biodiesel production can be used as the potential waste source for biodiesel production worldwide. Techno-economic, environmental, and sustainability analyses were also performed. During the synthesis, the reaction was conducted with potassium hydroxide (KOH), and the process yielded 48% biodiesel. The cost of electricity for providing electricity is estimated at US$0.575 per kWh when an auto-sized generator has been fueled by biodiesel. The environmental and substantiality analysis found that biodiesel is more suitable than conventional diesel as an environmentally friendly and sustainable fuel.
Combustion of fossil fuels results in high emission of green house gas. Besides it also results i... more Combustion of fossil fuels results in high emission of green house gas. Besides it also results in shortage of fossil fuels So, it is necessary to look for alternate solution. Biomass is a renewable source which is abundant in nature. Combustion of biomass produces gas which can be used to generate electricity. In this study, a simulation has been done by RETScreen software to find out the economic viability of 3MW biomass based power plant in Chittagong. From simulation it is found that electricity export to grid from plant is 23,915 MWh and revenue earned by selling electricity is $2,391 480.It was also observed that the proposed system reduces 13000 tonne CO2 annually.
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