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Girma Hunde Gonfa

Addis Ababa Science and Technology University

Civil Engineering Department

Road and Transport Engineering

Addis Ababa, 16417

Ethiopia

  • Addis Ababa Science and Technology University

SCHOLARLY PAPERS

5

DOWNLOADS

538

TOTAL CITATIONS

1

Scholarly Papers (5)

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1.

Characterization of Teff Straw Ashes Produced from Selected Teff Varieties from Ethiopia

Downloads 202 (380,469)

Characterization of Teff Straw Ashes Produced from Selected Teff Varieties from Ethiopia

Number of pages: 22 Posted: 02 Aug 2022
Belete Tessema, Girma Hunde Gonfa, Sintayehu Mekuria and Er.S.Venkatesa Prabhu
Addis Ababa Science and Technology University, Addis Ababa Science and Technology University, Addis Ababa Science and Technology University and Addis Ababa Science and Technology University
Downloads 117 (611,628)

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Teff straw, proximate analysis, Chemical composition, Silica.

Characterization of Teff Straw Ashes Produced from Selected Teff Varieties from Ethiopia

Number of pages: 22 Posted: 02 Aug 2022
Belete Tessema, Girma Hunde Gonfa, Sintayehu Mekuria and Er.S.Venkatesa Prabhu
Addis Ababa Science and Technology University, Addis Ababa Science and Technology University, Addis Ababa Science and Technology University and Addis Ababa Science and Technology University
Downloads 85 (792,223)

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Teff straw, proximate analysis, Chemical composition, Silica.

2.

Optimization of Pectin Extraction from Coffee Arabica Pulp Using Response Surface Methodology

Number of pages: 31 Posted: 17 Aug 2023
Girma Biratu Dori, Henock Woldemichael Woldemariam and Girma Hunde Gonfa
Addis Ababa Science and Technology University, Addis Ababa Science and Technology University and Addis Ababa Science and Technology University
Downloads 132 (554,631)

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coffee pulp, Pectin, Degree of acetylation, optimization, Response Surface Methodology.

3.

Extraction and Characterization of Pectin from Watermelon Rind Using Acetic Acid

Number of pages: 30 Posted: 29 Aug 2022
Dawit Mamiru and Girma Hunde Gonfa
Addis Ababa Science and Technology University and Addis Ababa Science and Technology University
Downloads 88 (765,566)

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Watermelon rind, Pectin, Extraction, Acetic acid, Response surface methodology.

4.

Preparation and Characterization of Activated Carbon from Castor Seed Hull with H3po4

Number of pages: 28 Posted: 16 Jun 2022
Ibsa Neme and Girma Hunde Gonfa
Addis Ababa Science and Technology University and Addis Ababa Science and Technology University
Downloads 83 (803,225)

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Castor seed hull, Activated carbon, H3PO4, Chemical activation, Characterization

5.

Adsorption of Cr(V) from Aqueous Solution Using Eggshell-Based Cobalt Oxide- Zinc Oxide Nano-Composite

Number of pages: 31 Posted: 04 Jun 2022
Girma Hunde Gonfa and Seid Mohammed Seid
Addis Ababa Science and Technology University and Addis Ababa Science and Technology University
Downloads 33 (1,277,121)
Citation 1

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Eggshell, Zinc oxide, Cobalt oxide, Nanocomposite, chromium, Adsorption