• Biogas Production from Mixture of Water Hyacinth and Tannery Flesh Waste Using Inoculum from Cow Dung 

  Wondmeneh, Hadgu (Addis Ababa University, 2021-12)

  Disposal of untreated tannery wastes into land and water bodies results in water pollution and air pollution which in turn leads to greenhouse gases. With increased emphasis on climate change mitigation, waste management ...
• Study on the Competitive Removal of Heavy Metals (Cr+6 and Pb+2) from Wastewater By Using Activated Coffee Husk 

  Godana, Dese (Addis Ababa University, 2022-02)

  Due to the release of toxic heavy metals from various industries, water pollution has been a major challenge to environmental engineers today. Among various heavy metals, Pb(II) and Cr(VI) are considered as highly toxic ...
• Integration of Fenton Oxidation and Biological Process with Sequencing Batch Reactor for the Treatment of Textile Wastewater 

  Desta, Solomon (Addis Ababa University, 2020-02)

  study was mainly aimed to investigate the treatment efficiency of the integrated system of biological oxidation and homo catalytic advanced oxidation process for the treatment of textile wastewater. Mineralization of a ...
• Environmental Life Cycle Assessment of Ethiopian Electricity Generation Systems: A Case of Hydro and Wind Power 

  Belay, Teffera (Addis Ababa University, 2020-11)

  Electricity is one of the most vital elements in modern society. Despite its significance to improve human life, there are concerns on its environmental impacts. Life Cycle Assessment (LCA) is a well-established tool for ...
• Anaerobic Co-Digestion of Slaughterhouse Wastewater with Water Hyacinth (Ecchornia Crassipes) For Biogas Production Using Rumen Fluid as Inoculum: Characterization and Parametric Optimization 

  Rakeb, Kifle (Addis Ababa University, 2021-10)

  The purpose of the present study was to characterize and optimize the co-digestion of Slaughterhouse wastewater with Water Hyacinth (WH) for biogas production using rumen fluid as inoculum. The slaughterhouse wastewater ...
• Investigation of Quality Briquette Fuel from Brewery Waste Water Sludge and Spent Grains 

  Bontu, Teshome (Addis Ababa University, 2021-09)

  Brewery wastes such as spent grain and brewery wastewater sludge are abundant brewing byproducts and have energy potential due to their high carbon contents. The objective of this study was to produce and evaluate solid ...
• Studies on Nitrification-Denitrification and Sludge Granulation Processes in Sequencing Batch Airlift Reactor for the Removal of Nitrogen from Tannery Wastewater 

  Aysanew, Gorems (Addis Ababa University, 2020-12)

  Tannery wastewater is characterized by high organic carbon and nitrogenous compounds due to the raw hides/skins and chemicals used in making leather. The present study employed sequencing batch airlift reactor (SBAR) system ...
• Production, Characterization and Optimization of Bricks made from a Mixed Tannery Sludge and Municipal Waste Incineration Bottom Ash (MWI-BA) 

  Helina, Asfaw (Addis Ababa University, 2021-09)

  Clay has been used to make bricks for thousands of years and a continuous exploitation of the top soil makes the soil loss its fertility. The chemical composition of tannery waste water treatment plant sludge is very similar ...
• Synthesis of Silica Xerogel from Bottom Ash of Reppi Waste to Energy as A Methylene Blue Adsorbent on Textile Wastewater 

  Amsal, Getahun (Addis Ababa University, 2021-08)

  Dyes are water soluble complex organic compounds, it present in the textile dyeing process and they are nonbiodegradable waste in the textile wastewater. In Ethiopia, most textile factories are located nearby water bodies ...
• Electrolysis Sodium Hypochlorite Generation from Sodium Chloride Solution 

  Tsegaye, Assefa (Addis Ababa University, 2021-01)

  The scarcity of fresh-water has become one of humanity's most pressing problems today. Chlorine was chosen as the disinfection of choice because it was cost-efficient, effective, and easy to use. Chlorine was introduced ...
• Study on the Possibility of using Municipal Solid Waste Incineration Bottom Ash as Partial Replacement of Aggregates in Concrete Mixes (The case in Repie waste to energy plant) 

  Abiy, Tirfe (Addis Ababa University, 2021-07)

  A huge sum of civil strong waste (MSW) are created each year. The most way of Waste administration and utilization are major concern in numerous parts of the world. Because it may generate power from garbage, burning could ...
• Removal of Iron and Manganese from Groundwater by Oxidation-Filtration Hybrid System 

  Lemlem, Belay (Addis Ababa University, 2021-01)

  Groundwater is naturally available water that exists in pore spaces and fractures in rock and sed-iment beneath the earth's surface that fills the opening in beds of rocks and sand. In developing countries both groundwater ...
• Removal of Chromium from Painting Industry Wastewater Using Bioelectrochemical Fuel Cell Technology 

  Diriba, Amsalu (Addis Ababa University, 2021-07)

  Chromium is heavy metal that released as waste dominantly from chemical industries and causes chronic and acute health problems on human beings and other living environments. From different industrial sector in Ethiopia ...
• Production and Characterization of Biodiesel by Hybridization of Moringa stenopetala and Azadirachta indica Seed Oil 

  Degnechew, Genene (Addis Ababa University, 2021-07)

  Biodiesel (Fatty acid alkyl ester) has been regarded as cleaner, alternative, renewable, biodegradable and environmentally benign energy source. It can replace petrol-diesel and solve challenges accompanied with environmental ...
• Enhancing the Physical and Combustion Properties of Sawdust Briquettes via Hydrothermal Pre-Treatment and Molasses Binder 

  Amanuel, Mengistu (Addis Ababa University, 2021-04)

  Renewable alternative energy sources have become more popular in recent years and biomass is one of them. Biomass is used as an alternative energy resource and available in huge quantity. Wood is a primary energy source ...
• Biogas Production by Anaerobic Co-Digestion of Food Wastes with Goat Manure 

  Gidey, Kiros (Addis Ababa University, 2017-12)

  Due to the rapid population growth and unmanageable urbanization, one of the burning issues faced by the world today is management of all types of wastes. This study has been conducted on the production of biogas by ...
• Bioethanol Production from Water Hyacinth by Chemical Hydrolysis (Preliminary Study) 

  Betelihem, Mekonnen (Addis Ababa University, 2016-06)

  Ethiopia, in order to reduce its dependency on imported petroleum fuels which consumes more than70% of the foreign currency earning, climate change issues and to tackle invasive weed problem such as Water hyacinth through ...
• Biomass Gasifier Process Simulation for Sustaibale Energy Production from Different Biomass Feedstock 

  Seada, Mohammed (Addis Ababa University, 2017-11)

  With the gradual depletion of coal and petroleum resources, biomass is being perceived as a self-sustainable source of energy production. It is cheap and readily available as well. Gasification is one of the potential ...
• Deinking of Black Toner Ink from Laser Printed Paper by using Anionic Surfactant 

  Mehari, Abraha (Addis Ababa University, 2017-10)

  The purpose of this research was to synthesize one type of natural anionic surfactant (fatty acid soap) from renewable material (natural oil) and use of this surfactant for ink removal from waste printed paper via flotation ...
• Removal of Chromium from Tannery Wastewater Using Modified Fish Scales as Adsorbent 

  Firomsa, Teshale (Addis Ababa University, 2017-11)

  Industrialization activities have brought many troublesome changes in the environment due to the disposal of huge amount of liquid and solid wastes. However, the presence of a heavy metal such as chromium in the industrial ...

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