Chemical Engineering: Recent submissions

Now showing items 1-20 of 84

Green synthesis of Silver Iron Zinc oxides Nanocomposite using Embelia Schimperia leaf extract for removal of ciprofloxacin from aqueous solution and antibacterial activity. Thesis

Defar Getahun; Edo Begna; Tsigab Tekleab (2024-01)

Green-synthesis of metal-oxide nanocomposites is the synthesis from bioactive agents like plant microorganisms, and various bio-wastes, which are used for different applications such as wastewater treatments, degradation ...
Aspen HYSYS Simulation for Biodiesel Production from Castor Seed Oil using Calcium Oxide Nanocatalyst and Its Purification Via Micro Membrane Filtration Thesis

Alefa, Yoseph Tesfaye; Begna, Edo; Mekonnen, Yigezu (2024-02-04)

Biodiesel is a promising renewable energy source, that holds potential for replacing conventional fuels with reduced environmental impact. In this study, biodiesel is produced via a transesterification process from ...
Solanum nigrum L. as a novel energy resource for biodiesel production through transesterification process using an open-system reactor Untitled

Kasirajan, Ramachandran; Sime, Wondwosen; Subramanian, Nambirajan; Renganathan, Sahadevan (2018-10-12)

Biodiesel is one of the paramount biofuels and alternates for geologically produced petroleum fuel. The lipid sources in dissipate material are very much valuable in two ways: one is for the remediation of dissipate and ...
Sustainable green biogas production from pretreated wheat straw blended with cofee husk using neem leaves‑based iron (III) nanocatalyst via response surface methodology Article

Bayisa, Yigezu Mekonnen; Bullo, Tafere Aga; Jiru, Edo Begna; Ancha, Venkata Ramayya (2023-05-10)

The present study investigated the enhancement of wheat straw and cofee husk waste used as a biogas source for energy production using iron nanocatalysts from neem leaf extract. In line with this the synthesized neem ...
Ecofriendly green synthesis and characterization of silver zinc oxide nanocomposite using the aqueous leaf extract of Rumex Crispus: Evaluation of its antimicrobial and antioxidant activity Article

Bayisa, Yigezu Mekonnen; Bullo, Tafere Aga; Hundie, Ketema Beyecha; Akuma, Desalegn Abdissa; Gizachew, Defar Getahun; Bultum, Mohammed Seid (2023-05-04)

The hydrothermal approach is used in the current study to create an environmentally friendly silver zinc oxide nanocomposite utilizing an aqueous leaf extract of Rumex Crispus. The photo chemical components of Rumex ...
Fixed-Bed Adsorption: Comparisons of Virgin and Zirconium Oxide-Coated Scoria for the Removal of Fluoride from Water Article

Geleta, Wondwosen Sime; Alemayehu, Esayas; Lennartz, Bernd (2022-04-14)

Many people worldwide are exposed to extreme levels of fluoride in drinking water. It is, therefore, critical to develop inexpensive, locally available, and environmentally friendly adsorbents for fluoride-laden water ...
Volcanic Rock Materials for Defluoridation of Water in Fixed-Bed Column Systems Article

Geleta, Wondwosen Sime; Alemayehu, Esayas; Lennartz, Bernd (2021-02-12)

Consumption of drinking water with a high concentration of fluoride (>1.5 mg/L) causes detrimental health problems and is a challenging issue in various regions around the globe. In this study, a continuous fixed-bed ...
Enhanced Defluoridation of Water Using Zirconium—Coated Pumice in Fixed-Bed Adsorption Columns Article

Geleta, Wondwosen Sime; Alemayehu, Esayas; Lennartz, Bernd (2021-10-16)

Millions of people across the globe suffer from health issues related to high fluoride levels in drinking water. The purpose of this study was to test modified pumice as an adsorbent for the purification of fluoride-containing ...
Synthesis and characterization of bioplastic flm from banana (Musa Cavendish species) peel starch blending with banana pseudo‑stem cellulosic fber Article

Abera, Workiye Getnet; Kasirajan, Ramachandran; Majamo, Samuel Latebo (2023-04-10)

The exponential growth of the human population has led to the accumulation of non-degradable waste materials across our planet. Bioplastics synthesized from only starch have less mechanical strength and thermal stability ...
ANN and RSM Modeling for the Synthesis of Avocado Seed Starch Combined Orange Peel Extract Antimicrobial Packaging Film Article

Waday, Yasin Ahmed; Aklilu, Ermias Girma (2023-06-16)

Cooperation of essential oil into film formation results in active packaging materials, which can improve the quality and freshness of the foods and extend the shelf life. In the present study, extraction of starch and ...
Lactide synthesis via thermal catalytic depolymerization of poly lactic acid oligomer using ZnO nanoparticle dispersion Article

Tefara, Sisay Fanta; Jiru, Edo Begna (2023-03-10)

Abstract Owing to its capacity to synthesize high molecular weight of Poly Lactic Acid (PLA), polymerization via Ring Opening Polymerization (ROP) has gotten the attention of researchers. Accordingly, since the ROP ...
Green Membrane Preparation and Manufacturing Practices Article

Kasirajan, Ramachandran; Hamda, Abas Siraj; Jayakumar, Mani (2022-12-20)

Green membrane film partition innovation prac tice, as the name itself clearly proposes, implies a novel partition strategy employing a film, which is extraordinarily fabricated and with particular transmission for ...
Optimization and clean synthesis of biodiesel from Rumex crispus leaves using calcium oxide derived from mango seed shell as a nanocatalyst Article

Bullo, Tafere Aga; Bayisa, Yigezu Mekonnen; Jiru, Edo Begna; Ancha, Venkata Ramayya (2023-09-04)

The present study investigated the synthesis of biodiesel through transesterifca tion reaction of non-edible extracted oil from a cheap Rumex crispus leaves using a methanol alcohol in the presence of a nanocatalyst ...
Ultrasonic supported oil extraction, process modeling, and optimization by response surface methodology tool from Croton Macrostachyus leaf Article

Aklilu, Ermias Girma; Kasirajan, Ramachandran; Jiru, Edo Begna; Filate, Samuel Gesesse; Ancha, Venkata Ramayya (2022-02-20)

The present study, ultrasound-assisted extraction (UAE) was used to extract Croton macrostachyus leaf oil, which enhances the rate of reaction and temperature in a shorter length of time while also ensuring the highest ...
Critical Study on Corrosion Inhibitors in U-Shaped RCC Beams Article

Shanmughan, Suchithra; Velusamy, Sampathkumar; Nallasamy, Jothi Lakshmi; Palanisamy Selvakumar, Kothai; Thirumoorthy, Pradeep; Saravanan, M. M.; Sakthivel, Haripriya; Periyasamy, Mageshkumar; Kasirajan, Ramachandran (2022-05-29)

In most structural failures, deterioration of reinforced concrete structure is due to corrosion of reinforcing bars. Ingress of chloride ions and reaction of carbon dioxide with the cement paste due to poor-quality concrete ...
Adsorption of lead (Pb-II) using CaO-NPs synthesized by solgel process from hen eggshell: Response surface methodology for modeling, optimization and kinetic studies Article

Kasirajan, Ramachandran; Bekele, Abreham; Girma, Ermias (2022-03-24)

In this research study, the application of synthesized calcium oxide nanoparticles by sol-gel process from a waste resource of hen eggshells for the adsorption of lead ion from aqueous solutions was investigated. ...
Calcium oxide nanoparticles synthesis from hen eggshells for removal of lead (Pb(II)) from aqueous solution Article

Jalu, Reta G.; Chamada, Tariku A.; Kasirajan, Ramachandran (2021-06-22)

Lead is an important industrial heavy metal used in various production industries. Remediation of Lead poisoned areas has both economical and technological challenges, as conventional and techniques are very expensive ...
Biodiesel production by two step process from an energy source of Chrysophyllum albidum oil using homogeneous catalyst Article

Kasirajan, Ramachandran (2021-05-16)

Due to the exhaustion of fossil diesel, it has become necessary to discover alternative diesel fuel from non edible sources and suitable technology to obtain biodiesel as alternative fuel. In this research work, two step ...
Production of fuel briquette from solid waste biomass using natural resin as a binder Article

Bayu, Abreham Bekele; Beyan, Surafel Mustefa; Amibo, Temesgen Abeto; Mekonnen, Dereje Tadesse (2022-12-05)

This research aimed to evaluate the use of natural resin as a binder for the production of fuel briquette from solid waste biomass. Methods: Proximate analyses were made for fuel briquette prepared from solid waste ...
Isolation and Characterization of Plant Growth-Promoting Rhizobacteria from Coffee Plantation Soils and Its Influence on Maize Growth Article

Waday, Yasin Ahmed; Aklilu, Ermias Girma; Bultum, Mohammed Seid; Ancha, Venkata Ramayya; Beyene, Dejene (2022-07-06)

Plant growth-promoting rhizobacteria (PGPR) are an important bacterial resource as biofertilizers, which can promote plant growth and increase crop yields. In this study, isolation, characterization, and its e ect on plant ...

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