Browsing Environmental Science by Title

Now showing items 279-298 of 383

Partial Replacement of Fish Meal by a Mixture of Lupin (Lupinus Albus L.) and Grass Pea (Lathyrus Sativus L.) Meal in the Diets of Nile Tilapia (Oreochromis Niloticus L.) Fingerlings in a Recirculating Aquaculture System

Fisseha, Tsegay (Addis Ababa University, 2020-06-19)

Aquaculture is one of the fastest-growing animal production sectors in the world producing near half (47%) of the world total fish production. However, it depends heavily on the expensive fish meal which is a limiting ...
Pathways of Litter Decomposition, Nutrient Dynamics and Carbon Stock Mapping In Asabot Dry Afromontane Forest: Implications For Sustainable Management of Ecosystem Functions and Services

Tolla Tulu (Addis Ababa University, 2018-06-04)

Pathways of Litter Decomposition, Nutrient Dynamics and Carbon Stock Mapping in Asabot Dry Afromontane Forest: Implications for Sustainable Management of Ecosystem Functions and Services Tulu Tolla Tura Addis Ababa ...
Performance Evaluation of Kality Wastewater Stabilization Ponds for the Treatment of Municipal Sewage, From the City of Addis Ababa, Ethiopia

Dagne, Mengesha (Addis Ababa University, 2010-06)

A cross sectional study was carried out at Kality wastewater stabilization ponds, in Addis Ababa from 4 may to 24 August 2009. The objective of the study was to evaluate the performance of the stabilization ponds and to ...
Physico- Chemical and Bacteriological Quality Assessment of Drinking Water From Source to Households Distribution Point in Debrezeit Town, Ethiopia

Kassa, Desta (Addis Ababa University, 2009-04)

In Ethiopia only 28% and 52% of the total population have access to sanitation and safe drinking water respectively. As a result, 60-80% of the population suffers from waterborne and water-related diseases. This is partly ...
Physico-chemical and Microbiological Assessment of the Quality of Drinking Water supply in Chancho Town, North Shoa, Ethiopia

Asrat Fikru (Addis Ababa University, 2014-11)

The residences of Chancho town depend on tube wells water for drinking and other activities. The aim of this study was to assess the drinking water quality of this water and to check the water quality along storage ...
Physicochemical and Bacteriological Analysis of Some Selected Sites from Kebena River and Its Pollution Status in Addis Ababa

Benito Efrem (Addis Ababa University, 2016-06-28)

In this basic research, which is entitled as “Physicochemical and Bacteriological Analysis of Some Selected Sites from Kebena River and Its Pollution Status in Addis Ababa“, bacteriological and physicochemical analyses ...
Physicochemical and Bacteriological Water Quality Assessment in Lake Ziway with a Special Emphasis on Fish Farming

Rabo, Berhanu (Addis Ababa University, 2008-03)

The purpose of this thesis was to evaluate the physicochemical and bacteriological water quality aspect of Lake Ziway in relation to Fish Farming. On global scale water pollution, i.e. microbial water pollution, pose the ...
Physicochemical and Bacteriological Water Quality Assessment in Lake Ziway with a Special Emphasis on Fish Farming

Rado, Rerhanu (Addis Ababa University, 2008-03)

The purpose of this thesis was to evaluate the physicochemical and bacteriological water quality aspect of Lake Ziway in relation to Fish Farming. On global scale water pollution, i.e. microbial water pollution, pose the ...
Physicochemical and microbial quality of drinking water from source to household taps; The case of Legedadi reservoir

Hailu, Birhanu (Addis Ababa University, 2017-01)

In Ethiopia, only 52% and 28% of the population have access to safe water and sanitation coverage, respectively; as a result, 60-80% of the population suffers from waterborne and water-related diseases. The purpose of this ...
Plant Diversity and Carbon Stock Analysis along Environmental Gradients:The case of Gergeda and Anbessa Forests in Western Ethiopia

Yohannes, Tamene (Addis Ababa University, 2016-06)

make an assessment of plant diversity, plant community types, structural analysis of woody plant species and quantify the amount of carbon stock and its relation with environmental gradients. A systematic sampling technique ...
Plastic Bag Waste Generation Rate in Bahir Dar Town

yehuala, Ayana (Addis Ababa University, 2007-07)

The Base line information on solid waste generation rate of town helps as tool for proper management of solid wastes. The absence of data on the quantity of plastic waste generation rate at household level is one of the ...
Pollution Profile and Treatment of Little Akaki River Using Constructed Wetland System Performance Bioavailability Effluent and Sludge Reuse for Urban Agriculture

Mamo, Deshu (Addis Ababa University, 2021-11-30)

Little Akaki River (LAR) is one of the major rivers passing through the Addis Ababa City Administration and is often receiving untreated wastes from residential, industrial, municipal, and agricultural areas. The objective ...
Pollution Status of Awash River and Heavy Metals Levels In Soil and Vegetables Cultivated at Koka and Wonji Farmlands, Ethiopia

Eliku, Temesgen (Addis Ababa University, 2018-05-05)

Among the major rivers in Ethiopia, Awash River which flows from the central highlands through Ethiopia’s major industrial and agro-industrial belt is absorbing most domestic, agricultural and industrial wastes. The purpose ...
Population Status and Gum Quality of Acacia Seyal in Gambella Southwest Ethiopia

Gebre, Temesgen (Addis Ababa University, 2020-07-26)

The vegetation of Gambella Peoples Regional State of Ethiopia is under severe threats of degradation. Thus, there is a need for urgent measures to abate the situation. One of the possibilities for the dryland vegetation ...
Population Status, Feeding Habits and Conservation Challenges of Tiang (DamaliscusLunatus Tiang) In Abobo District, GambeUa National Park, Gamebella, Ethiopia

Dak, Biel (Addis Ababa University, 2014-06)

A study aiming at determining population status, feeding habits and conservation challenges of Tiang was conducted in Abobo district, Gambella National Park. The objectives of the study were to know the population ...
Post Treatment of Tannery Wastewater in Horizontal Subsurface Flow Constructed Wetland Connected to Sequence Batch Reactor: Performance, Nutrient Profile and Effluent Reuse for Irrigation

Alemu, Tadesse (Addis Ababa University, 2017-09)

Tannery wastewater is characterized by high levels of organic and inorganic matter, chromium (Cr), and suspended and dissolved solids. Discharge of untreated tannery wastewater into the environment poses a serious environmental ...
Post-Resettlement Status of Soil Degradation and Land Management Practices at Gubalafto Woreda, North Wollo, Ethiopia: The Case of Three Selected Kebeles

Mohammed Ali (Addis Ababa University, 2010-08)

Although the causes, extent, effects and solutions vary from place to place, the impact of land degradation is more pronounced in the tropics. In the Ethiopian highlands overgrazing, over cultivation and deforestation have ...
Postfire Influence on Erica Shrubland Within the Afroalpine Vegetation

Getahun, Mekonnen (Addis Ababa University, 2009-06)

The aim of the study was to compare variations in size, density, and concentration of the floristic composition, soil seed bank and soil nutrient concentration respectively between recently and previously burnt blocks ...
Potential of Floriculture Residue For Biogas Production

Asnake Tamrat (Addis Ababa University, 2008-09)

Production of methane reach biogas through anaerobic digestion of organic material provides versatile carrier of renewable energy, as methane can be used in replacement for fossil fuels. Thus contributing to cutting down ...
Potential of Locally Isolated Scenedesmus Sp. for the Treatment of Anaerobically Digested Effluent and Carbohydrate Accumulation for Bioethanol Production

Yirgu, Zenebe (Addis Ababa University, 2021-06-06)

The combination of microalgae-based wastewater treatment with biomass production is currently considered as a viable option for wastewater remediation and biofuel production. The objective of this study was to evaluate ...

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