Browsing Environmental Science by Title

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Accumulation of Certain Heavy Metals in Nile Tilapia (oreochromis niloticus) Fish Species Relative to Heavy Metal Concentrations in the Water of Lake Hawassa

Yirgu, Zenebe (Addis Ababa University, 2011-05)

The Tiliapia fish samples and water samples were collected from Lake Hawassa at three selected sampling sites namely Tikur Wuha, Dorie basana and Referral H. sites. The concentrations of certain heavy metals ( copper ...
Adsorptive Removal of Fluoride From Water Using Nano Scale Aluminium Oxide Hydroxide

Adeno, Fentahun (Addis Ababa University, 2010-03)

Fluoride generates effects on skeletal tissues (bones and teeth) and has a narrow range between intakes that cause beneficial and detrimental health effects. Elevated levels of fluoride (>1.5 mg/L) in drinking water supply ...
Adsorptive Removal of reactive Azo Dyes using Industrial Residue

Adamu, Admasu (2008, 2008-02)

The potential of waste residue obtained from alum manufacturing process to remove problematic reactive azo dye (Cibacron brilliant red 3B-A) was investigated. Batch adsorption experiments were carried out to find out the ...
Agrobiodiversity in the Homegardens of Bishoftu Town, Oromia National Regional State, Ethiopia

Bekele, Regassa (Addis Ababa University, 2014-12)

Bishoftu Town homegarden agrobiodiversity was studied to highlight homegarden frequency, types, plant species and their functional groups, indigenous knowledge and climate change impacts. The research was conducted during ...
Allelopathic effects of Potamogeton schweinfurthii on natural phytoplankton community and Microcystis spp and identification of its potential allelopathic compounds, in Lake Hawassa, Ethiopia

Amsalu, Getasew (Addis Ababa University, 2017-06)

Eutrophication is one of the most widespread environmental problems of inland waters. The use of submerged macrophytes might be an alternative method of eutrophication control as it is environmentally safe and cost effective. ...
Allometric Equation for Aboveground Biomass Estimation of Selected Indigenous tree Species in Gambella National Park South Western Ethiopia

Ayele, Etagegn (Addis Ababa University, 2019-12-19)

Allometric Equation for Aboveground biomass estimation of selected indigenous tree species namely, Balanites aegyptiaca, Piliostigma thonningii, Terminalia macropetra, and Vitellaria paradoxa was conducted in Gambella ...
Allometric Equation for Biomass Estimation of Allophylus Abyssinicus Radlk. and Croton Macrostachyus Del. In Arba Gugu

Tekle, Dawit (Addis Ababa University, 2014-11)

The Development Of Tree Allometric Equations Is Crucial For Accurate Forest Biomass And Carbon Assessment. However, Very Few Allometric Equations Have Been Developed In Ethiopia And As A Result Generalized Allometric ...
Allometric Equation for Biomass Estimation of Six Selected Indigenous Tree/Shrub Species in Egdu Forest: Implication for Sustainable Forest Management and Climate Change Mitigation

Desta, Rahel (Addis Ababa University, 2015-09)

Species-specific allometric models developed from easily measurable dendrometrical characteristics of a plant enable to accurately estimate the aboveground biomass of a plant, and thus, carbon stocks in forests. However, ...
Aluminium Amended Activated Bamboo Charcoal for Fluoride Removal from Drinking Water

Wendimu, Gizachew (Addis Ababa University, 2015-03)

The purpose of this study was to investigate the adsorption potential of aluminium amended activated bamboo charcoal (AAABC) for defluoridation of drinking water using batch adsorption experiments. The preparation of ...
Anaerobic Co-Digestion of Tannery and Dairy Industry Wastes for Bio Energy Production: An Approach to Convert Waste to Energy in Agro industrial Sector

Berhe, Shifare (Addis Ababa University, 2017-09-04)

The introduction of cleaner technologies through the reuse of wastes for energy recovery can improve the environmental performance of agro processing industries. However, existing waste treatment methods in Ethiopian agro ...
Analysis of Domestic Waste Generation Rate and Composition in Addis Ababa: Arada Sub-City

Beyene, Yitayal (Addis Ababa University, 2005-06)

Absence or presence of limited data about the quantity and composition of solid waste is one of the reasons for poor solid waste management in Addis Ababa. Domestic soh a waste quantIty ana composition analysis is one ...
Analysis of the Impact of Land Use Land Cover Dynamics on Soil Erosion Using the Rusle Model: the Case of Water Supply Reservoir Watersheds Around Addis Ababa

Mamo Awraris (Addis Ababa University, 2017-11-12)

Soil erosion and the consequent sedimentation on the downstream water bodies are major watershed problems in many developing countries like Ethiopia. Soil erosion is often aggravated by unregulated land use land cover ...
Analyzing Performances of Selected Sustainable Land Management Practices in Gina Beret Watershed, North Shoa

Tekalign Yeron (Addis Ababa University, 2016-12)

study was conducted at Basona Werana Woreda North Shewa zone. Land degradation, which includes degradation of vegetation cover, soil degradation and nutrient depletion, is a major ecological problem generally in Ethiopia ...
Application and investigation of chemical precipitation method for chromium removal and its recovery in one of the leather industries in Ethiopia

Minas, Fenta (Addis Ababa University, 2011-04)

Most tanneries in Ethiopia (90%) do not treat and very few (10%) partially treat their effluent before discharging it into the receiving water bodies, therefore, untreated leather effluent causes tremendous pollution of ...
Application of Geo-Physical Methods to Characterize Solid Waste Landfill: The Case of Repi Landfill, South West Addis Ababa

Berhanu, Biruk (Addis Ababa University, 2010-07)

Water quality degradation is one of the major environmental problems in Addis Ababa and municipal solid waste disposal sites can be sources of groundwater contamination as leachate may infiltrate and join the aquifer. ...
Application of Hydrologic Models for Flood Risk Zone Mapping and Possible Mitigation Measures in Abakaliki L.G.A, South-Eastern Nigeria

Aja Daniel (Addis Ababa University, 2018-06-04)

To delineate flood risk zones in Abakaliki Local Government Area, a hydrological model (modified rational model) was integrated into the GIS environment by the arithmetic overlay operation method, using operators such ...
Application of the WEAP model to assess the water resource implications of planned development in the Lake Tana Subbasin, Ethiopia

Tadesse, Alemayehu (Addis Ababa University, 2008-10)

Lake Tana sub-basin is known to have significant water resources potential and natural assets. In light of this fact, there are a number of water development schemes in the region on the hydropower and irrigation sectors. ...
Area Closure as a Strategy for Land Management

Tsetargachew Abiy (Addis Ababa University, 2008-02)

Land degradation, which includes degradation of vegetation cover, soil degradation and nutrient depletion, is a major ecological problem generally in Ethiopia and particularly in the study area. As a response of the ever ...
Assessing Environmental Benefits of Mirt Stove With Particular Reference to Indoor Air Pollution (Carbon Monoxide & Suspended Particulate Matter) and Energy Conservation

Assefa Yosef (Addis Ababa University, 2007-06)

Biomass fuels account for more than one-half of all energy use in many developing countries and as much as 95% of all energy use in some of the poorest nations. In Ethiopia, it accounts more than 90% of total energy ...
Assessing Land Use/Land Cover Change and its Effects on Soil Physicochemical Properties and Soil Macro-Fauna Diversity in Shenkolla Watershed South Central Ethiopia

Bufebo, Belayneh (Addis Ababa University, 2021-03-02)

Land Use/Land Cover (LU/LC) change is one of the major global challenges induced by anthropogenic and natural factors. Understanding the scope of LU/LC changes, the driving forces and consequences are crucially important ...

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