Journal of Energy, Environmental & Chemical Engineering

Volume 6, Issue 4, December 2021

  • Lead and Zinc Smelting Wastewater Treatment and Reclamation by Coagulation-Flocculation-Sedimentation, Ultrafiltration and Reverse Osmosis Technique

    Jiangtao Fu

    Issue: Volume 6, Issue 4, December 2021
    Pages: 94-105
    Received: Aug. 26, 2021
    Accepted: Sep. 15, 2021
    Published: Sep. 30, 2021
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    Abstract: The typical smelting wastewater is with characteristics of high concentration of TDS, conductivity, heavy metal ions, and low concentration of COD. The ultrafiltration (UF) and reverse osmosis (RO) is an attractive technology to reclaim and reuse this kind of wastewater. In this work, Coagulation-flocculation-sedimentation (CFS) and multi-media fil... Show More
  • Assessment of Some Pollutant Gases in Selected Cities in Crude Oil-Rich Delta State Nigeria

    Ifezue Obianuju Appolonia, Aiyesanmi Ademola Festus, Ogunjobi Kehinde, Sunday Oluwatoyin Michael

    Issue: Volume 6, Issue 4, December 2021
    Pages: 106-113
    Received: Aug. 18, 2021
    Accepted: Aug. 31, 2021
    Published: Oct. 05, 2021
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    Abstract: Delta state is one of the petroleum-producing states in Nigeria where upstream and downstream exploration activities tend to pollute the environment. While soil and water pollution are regularly monitored, there is a dearth of information on the impact of exploration and related industries on air quality. This study investigated the levels of pollu... Show More
  • Optimization of Selected Pyrolysis Parameters in Pyroligneous Acid Production Rate and Quality from Acacia Twigs

    Baqe Sharu Doti, Samwel Nyakach, Jane Nyaanga, Oscar Ingasia, Daudi Nyaanga

    Issue: Volume 6, Issue 4, December 2021
    Pages: 114-123
    Received: Sep. 25, 2021
    Accepted: Oct. 12, 2021
    Published: Oct. 21, 2021
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    Abstract: Biomass material is a renewable source of energy which are readily available and being produced in large quantities as most of it goes to waste. These materials can be recovered through pyrolysis process in order to produce usable products like biochar and pyroligneous acid. These products can be used as bio-fertilizer and bio-pesticides. The aim o... Show More
  • Production of Bio-methane Gas as Renewable Energy Source - A Review

    Rasha Jame, Omaymah Alaysuy, Noha Omer, Nada Mofadi Alatawi, Mawia Hassan Elsaim

    Issue: Volume 6, Issue 4, December 2021
    Pages: 124-130
    Received: Sep. 09, 2021
    Accepted: Nov. 22, 2021
    Published: Nov. 29, 2021
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    Abstract: The present review aims to provide an up-to-date summary of bio-methane (CH4) gas production, which use as is a renewable energy source. Burned bio-methane gas used for water heating, space heating, drying, or cooking. CH4 is also used in an automotive to produce both heat and electricity. The bio-methane gas is produced by anaerobic digestion (AD)... Show More
  • A Comprehensive Review of Biomethanation of Urban Food Waste in Nairobi City County, Kenya

    Hope Baxter Chamdimba, Isaiah Omosa, Simon Mdondo Wandera

    Issue: Volume 6, Issue 4, December 2021
    Pages: 131-144
    Received: Nov. 16, 2021
    Accepted: Dec. 16, 2021
    Published: Dec. 29, 2021
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    Abstract: Organic waste in Nairobi City County accounts for 58-63% of the municipal solid waste generated. Food waste is at the center of urban waste management in the city as it accounts for 64% of the recoverable material. The city is estimated to have a food waste generation per capita of 6.1 kilogram per year, which accumulates to 29.4 thousand tons year... Show More