Dr. Badiea Babaqi | Hadhramout University (original) (raw)
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Papers by Dr. Badiea Babaqi
Journal of Ecological Engineering
Water pollution occurs due to the discharge of domestic waste mixed with residential, industrial,... more Water pollution occurs due to the discharge of domestic waste mixed with residential, industrial, commercial, and agricultural wastewater. Conventional water treatment methods using aerobic/anaerobic methods can cause problems with the production of high green gases and result in the greenhouse effect. Microbial-based domestic sewage treatment technology using polyvinyl alcohol biofilm supporting media was introduced as an alternative measure to overcome this problem. The objective of the study was to determine the performance of polyvinyl alcohol beads in polishing domestic wastewater. In this study, the bacterium Bacillus velezensis isolate JB7 was used together with PVA as a raw material to treat domestic sewage wastewater more efficiently and stably. The results of the study show the effectiveness of domestic wastewater treatment in several factors such as pH value, chemical oxygen demand, phosphorus, nitrate, nitrite, ammonia, and total suspended solids. As conclusion, domestic wastewater treatment methods using polyvinyl alcohol beads are seen to be effective, reducing the use of sewage waste plant construction sites and able to avoid the use of non-recyclable materials such as plastics and synthetics.
Journal of Physics: Conference Series, 2021
Modeling and simulation were developed of the continuous catalytic regeneration reforming process... more Modeling and simulation were developed of the continuous catalytic regeneration reforming process for integrating four reactors and studying the effecting operating parameters to improve the process performance. The process model included four reactors as stack and used to investigate the profiles of reformate composition products and research octane number. The main reactions that occur in reforming reactors included five reactions namely; dehydrogenation, dehydrocyclization, isomerization, hydrocracking and hydrodealkylation. The kinetic and thermodynamic parameters were estimated by the particle swarm optimization approach to monitor the process behavior. The expected results have been validated of the model simulation with comparison to data of actual plant, and average absolute deviation (AAD%) of two parameters; reformate composition and octane number reached 0.04% and 1.3%, respectively. This evaluation was a fair agreement and within the acceptable limit.
I would like to dedicate this academic project to my beloved parents, who encouraged me and suppo... more I would like to dedicate this academic project to my beloved parents, who encouraged me and supported me to continue my education and helped me to purse my educational objectives and set my essential goals in my life. Special thanks are due to my wife who has always been there for me supporting and encouraging me with unconditional love to continue my education and to make my dreams come true. Also, much love to my daughters Raqia and Reem, the lights of my life. I would like to thank all my brothers and sisters and the rest of my family for their love and support. v ACKNOWLEDGEMENTS I am very grateful and thankful to my God Allah for blessing me with ability and capability to gain the knowledge, and helping me throughout my life particularly in my studies. There are many people who have helped me in my graduate studies and have encouraged me. At the top of them is my advisor Dr. Eid M. Al-Mutairi. I have been honored to work under Dr. Al-Mutairi"s supervision. He has provided me with guidance, encouragements, and advice during my coursework and research.
Journal of Mechanical Engineering Research, 2017
Winnowing called "Dhan Battaune" in Nepali is the process of separation of unwanted matters from ... more Winnowing called "Dhan Battaune" in Nepali is the process of separation of unwanted matters from paddy after threshing. In the conventional method; it requires at least four person to produce strong wind by bamboo basket ("Nanglo" in Nepali) to blow away straw, leaves of grasses and other unwanted matters; process starting with one of them pouring the sun dried grains from certain height. To perform MATLAB simulation for designing the screeni ng chamber, a sample of 20 rice grains out of half kilogram was selected to measure its length, width and thickness. To locate the flow pattern, grains of highest weight 0.0324 mg and mean weight 0.0228 mg were considered and simulation was performed in MATLAB with drag coefficient 0.4 which indicated screening chamber as 0.4 m × 0.4 m. The rice-husk movement was also observed in ANSYS CFX which validate the result obtained from MATLAB as the recommended screening chamber design clearly separate them owing to their weight differences. Series of modification were done for better performance of the machine. This resulted in a final product having 0.16 m × 0.10 m grain outlet and 0.20 m × 0.20 m husk outlet in which 19 kg of rice grain were tested in average separation time of 70.8 s for five trails. The overall productivity of the machine was calculated to be 966.10 kg/h which is a promising result for the power consumption of 3.10 units per hour.
2019 First International Conference of Intelligent Computing and Engineering (ICOICE), 2019
Energy savings and gases emissions reduction in the crude distillation unit have a big impact on ... more Energy savings and gases emissions reduction in the crude distillation unit have a big impact on the reduction of energy costs as well as minimization of environmental effects. This work illustrates energy optimization based upon mathematical models of the crude distillation unit using LINGO program to achieve the minimum energy consumption demands and a great reduction of greenhouse gases (GHG). The current energy demand for the HEN network is 625.8 million BTU/h rrr and 242.7 million BTU/hr for heating and cooling facilities, respectively. The current survey shows a tremendous opportunity to reduce energy consumption with a minimum temperature difference (ΔT min) of 50 degrees. The results shows a reduction of heat duty about 6.92% leading to saving about 6628952.88 USD$/yr. Similarly, energy saving range for cold facilities has 17.26% leading to saving about 156632.256 USD$/yr. Likewise, reducing the greenhouse gas emissions to 26,133.79 metric tons/yr.
Asia-Pacific Journal of Chemical Engineering, 2013
Journal of Ecological Engineering
Water pollution occurs due to the discharge of domestic waste mixed with residential, industrial,... more Water pollution occurs due to the discharge of domestic waste mixed with residential, industrial, commercial, and agricultural wastewater. Conventional water treatment methods using aerobic/anaerobic methods can cause problems with the production of high green gases and result in the greenhouse effect. Microbial-based domestic sewage treatment technology using polyvinyl alcohol biofilm supporting media was introduced as an alternative measure to overcome this problem. The objective of the study was to determine the performance of polyvinyl alcohol beads in polishing domestic wastewater. In this study, the bacterium Bacillus velezensis isolate JB7 was used together with PVA as a raw material to treat domestic sewage wastewater more efficiently and stably. The results of the study show the effectiveness of domestic wastewater treatment in several factors such as pH value, chemical oxygen demand, phosphorus, nitrate, nitrite, ammonia, and total suspended solids. As conclusion, domestic wastewater treatment methods using polyvinyl alcohol beads are seen to be effective, reducing the use of sewage waste plant construction sites and able to avoid the use of non-recyclable materials such as plastics and synthetics.
Journal of Physics: Conference Series, 2021
Modeling and simulation were developed of the continuous catalytic regeneration reforming process... more Modeling and simulation were developed of the continuous catalytic regeneration reforming process for integrating four reactors and studying the effecting operating parameters to improve the process performance. The process model included four reactors as stack and used to investigate the profiles of reformate composition products and research octane number. The main reactions that occur in reforming reactors included five reactions namely; dehydrogenation, dehydrocyclization, isomerization, hydrocracking and hydrodealkylation. The kinetic and thermodynamic parameters were estimated by the particle swarm optimization approach to monitor the process behavior. The expected results have been validated of the model simulation with comparison to data of actual plant, and average absolute deviation (AAD%) of two parameters; reformate composition and octane number reached 0.04% and 1.3%, respectively. This evaluation was a fair agreement and within the acceptable limit.
I would like to dedicate this academic project to my beloved parents, who encouraged me and suppo... more I would like to dedicate this academic project to my beloved parents, who encouraged me and supported me to continue my education and helped me to purse my educational objectives and set my essential goals in my life. Special thanks are due to my wife who has always been there for me supporting and encouraging me with unconditional love to continue my education and to make my dreams come true. Also, much love to my daughters Raqia and Reem, the lights of my life. I would like to thank all my brothers and sisters and the rest of my family for their love and support. v ACKNOWLEDGEMENTS I am very grateful and thankful to my God Allah for blessing me with ability and capability to gain the knowledge, and helping me throughout my life particularly in my studies. There are many people who have helped me in my graduate studies and have encouraged me. At the top of them is my advisor Dr. Eid M. Al-Mutairi. I have been honored to work under Dr. Al-Mutairi"s supervision. He has provided me with guidance, encouragements, and advice during my coursework and research.
Journal of Mechanical Engineering Research, 2017
Winnowing called "Dhan Battaune" in Nepali is the process of separation of unwanted matters from ... more Winnowing called "Dhan Battaune" in Nepali is the process of separation of unwanted matters from paddy after threshing. In the conventional method; it requires at least four person to produce strong wind by bamboo basket ("Nanglo" in Nepali) to blow away straw, leaves of grasses and other unwanted matters; process starting with one of them pouring the sun dried grains from certain height. To perform MATLAB simulation for designing the screeni ng chamber, a sample of 20 rice grains out of half kilogram was selected to measure its length, width and thickness. To locate the flow pattern, grains of highest weight 0.0324 mg and mean weight 0.0228 mg were considered and simulation was performed in MATLAB with drag coefficient 0.4 which indicated screening chamber as 0.4 m × 0.4 m. The rice-husk movement was also observed in ANSYS CFX which validate the result obtained from MATLAB as the recommended screening chamber design clearly separate them owing to their weight differences. Series of modification were done for better performance of the machine. This resulted in a final product having 0.16 m × 0.10 m grain outlet and 0.20 m × 0.20 m husk outlet in which 19 kg of rice grain were tested in average separation time of 70.8 s for five trails. The overall productivity of the machine was calculated to be 966.10 kg/h which is a promising result for the power consumption of 3.10 units per hour.
2019 First International Conference of Intelligent Computing and Engineering (ICOICE), 2019
Energy savings and gases emissions reduction in the crude distillation unit have a big impact on ... more Energy savings and gases emissions reduction in the crude distillation unit have a big impact on the reduction of energy costs as well as minimization of environmental effects. This work illustrates energy optimization based upon mathematical models of the crude distillation unit using LINGO program to achieve the minimum energy consumption demands and a great reduction of greenhouse gases (GHG). The current energy demand for the HEN network is 625.8 million BTU/h rrr and 242.7 million BTU/hr for heating and cooling facilities, respectively. The current survey shows a tremendous opportunity to reduce energy consumption with a minimum temperature difference (ΔT min) of 50 degrees. The results shows a reduction of heat duty about 6.92% leading to saving about 6628952.88 USD$/yr. Similarly, energy saving range for cold facilities has 17.26% leading to saving about 156632.256 USD$/yr. Likewise, reducing the greenhouse gas emissions to 26,133.79 metric tons/yr.
Asia-Pacific Journal of Chemical Engineering, 2013