American Journal of Chemical Engineering

Volume 9, Issue 4, July 2021

  • Tannery Wastewater Treatment by Coagulation-Flocculation Technique Using Combination of Calcium Polysulfide and Ferrous Sulphate

    Gedefaw Asmare, Birhan Getachew, Tsegazeab Kassa, Wendifraw Abate

    Issue: Volume 9, Issue 4, July 2021
    Pages: 79-83
    Received: 3 June 2021
    Accepted: 8 July 2021
    Published: 15 July 2021
    Abstract: Effluents from the tannery industry have been a major source of environmental pollution. There is a need to evaluate the performance of wastewater treatment plant against regulatory standards. If in compliance found with standard, Employing appropriate treatment technique to meet the permissible discharge is important. In this reaction, performance... Show More
  • Epoxidation of Podocarpus Falcatus Oil by Sulphuric Acid Catalyst: Process Optimization and Physio-chemical Characterization

    Yigezu Mekonnen

    Issue: Volume 9, Issue 4, July 2021
    Pages: 84-90
    Received: 17 June 2021
    Accepted: 13 July 2021
    Published: 21 July 2021
    Abstract: Recently environmental awareness and reduction of world fossil fuel reserves have enforced the need to look for a replacement of mineral oils with environmentally friendly and nontoxic epoxy oil vegetable-based. The current study implies that Epoxidized podocarpus falcatus oil can be a substitute as a raw material for the production of a variety of... Show More
  • Dynamic Simulation and Modelling of Methane Production Process for Habesha Beer Waste Water Treatment Process Using Aspen Plus Software

    Wondifraw Abate Abera

    Issue: Volume 9, Issue 4, July 2021
    Pages: 91-100
    Received: 27 July 2021
    Accepted: 9 August 2021
    Published: 18 August 2021
    Abstract: Brewery production process is one of the biggest economical sources in Ethiopia, there are different brands in beer industry in the country, such as Dashen, Balageru, Heineken, and Habesha Brewery Company, in such factories the modern technology treatment was performed in Habesha brewery. All beer industrial processes require large amounts of water... Show More
  • Influence of Bubble-point Pressure on the Gas Formation in an Oil Reservoir Under Water Injection

    Antonio Fernando Britto, Ivan Costa da Cunha Lima, Andre Telles da Cunha Lima

    Issue: Volume 9, Issue 4, July 2021
    Pages: 101-111
    Received: 6 June 2021
    Accepted: 24 June 2021
    Published: 31 August 2021
    Abstract: To evaluate the oil recovering in a reservoir producing at the bubble-point pressure, we performed numerical simulations using a sandbox model and a black oil approach for the reservoir, and the tool-kit CFD software OpenFOAM. A new solver treats the three-phase dynamics of the oil-water-gas in the reservoir. The calculation includes four cases wit... Show More