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Browsing School of Chemical and Bio Engineering by Issue Date

Browsing School of Chemical and Bio Engineering by Issue Date

Now showing items 1-20 of 497

Adaptive Control Design for a MIMO Chemical Reactor

Yimam, Abubeker (Addis Ababa University, 2004-07)

The major disadvantage of non-adaptive control systems is that these control systems cannot cope with fluctuation in the parameters of the process. One solution to this problem is to use high levels of feedback gain to ...
The Utilization of Indigenous Coal as Energy Substitute in Cement Industry

Dejene, Yoseph (Addis Ababa University, 2004-08)

Ethiopia spends million of dollars to meet its energy requirement, it is estimated around 20-30 million dollars is spent for the purchase of furnace oil for cement sectors only. In order to change the country’s economic ...
Modeling Chemical Engineering Processes Using Artificial Neural Networks

Ambaw, Alemayehu (Addis Ababa University, 2005-01)

In this thesis the application of feed forward type artificial neural networks to model chemical engineering processes are demonstrated with reference to five different problems. Neural network models are constructed ...
Cleaner Production Options for Solid Waste Management in the Leather Industry

Ayalew, Andualem (Addis Ababa University, 2005-01)

The leather industry is characterized as an industry that uses moderately large types and quantities of chemicals and water. The wastes generated in tannery processes include wastewater effluent, solid waste, and hazardous ...
Intrusion Detection System Using Visualization and Integration Technique

Denboba, Sisay (Addis Ababa University, 2006-08)

Intrusion detection is an area of ever increasing importance. Currently existing Intrusion Detection Systems (IDS) lack visualization and false alarms detection capabilities. Researchers have proposed integrated systems ...
Selection of Clay Adsorbents and Determination of The Optimum Condition for Defluoridation of Ground Water in Rift Valley Region

Hassen, Ahmedin (Addis Ababa University, 2007-01)

People in several regions of the Rift Valley of Ethiopia are suffering from skeletal and non-skeletal fluorosis as result of consuming water containing excessive fluoride. Defluoridation of drinking water using variety ...
Characterization of Physicochemical Parameters for Tap Water and Removal of Hardness Using Moringa Stenopetala seed as Natural Absorbent The Case of Mekelle Town, Tigray Ethiopia

Mesfin, Amhagiyorgis (Addis Ababa University, 2007-06)

The physicochemical examination of tap water used for domestic purposes in Mekelle town was carried out to ascertain their suitability for consumption. Water softening experiments were also conducted to observe the changes ...
Effect of Low Temperature Preservation on The Physicochemical and Microbiological Qualitieis of Selected Fish Species of Lake Ziway

Melaku, Mekonnen (Addis Ababa University, 2007-06)

With the purpose of determining the effect of frozen storage on quality of fish fillet and evaluating the existing low temperature preservation technique in the case of Fish Production and Marketing Enterprise, samples ...
Technical Assessment on Viability of Integrated Fruits Processing in Ethiopia

Abebe, Elias (Addis Ababa University, 2007-07)

The feasibility study of small scale processing of pineapple jam, mango jam and dried pineapple was studied. The methodology used for the feasibility study incorporates the three environments proposed by Lecup and Nicholson ...
Evaluation of Imported and Local Wax for Cheese Processing

Getachew, Solomon (Addis Ababa University, 2007-07)

Despite large production and exportation of beeswax, the dairy processors import significant amount of wax for hard cheese coating. The drawback of the local beeswax which is being used for hard cheese processing is the ...
Evaluation of Hydrogenation Process, Trans Fatty Acid Level and Some Qualities of Selected Hydrogenated Food Products in The Markets of Addis Ababa

Gizaw, Eshetu (Addis Ababa University, 2007-08)

Mass production of foods and extremely large variety of food products make the quantification of their nutrient composition a difficult task. Regulations on mandatory product labeling vary from country to country, but ...
Evaluation of Ethanol Production from Intermediate Cane Molasses by Yeast (Saccharomyces Cerevisiae )

Abebe, Fekadu (Addis Ababa University, 2007-12)

The present study analyzes the influence of modification of sugar crystallization from three to two stages and tried to optimize both sugar and ethanol production from sugar cane source. The efficiency of sugar crystallization ...
Studies on The Development of Baker’s Yeast Using Cane Molasses

Damtew, Wondimagegen (Addis Ababa University, 2008-01)

Three yeast strains were used for biomass production of baker’s yeast using wine, brewer and baker’s yeast strains. The effect of growing yeast saccharomayces cerevisiae on cane molasses with respect to baker’s yeast ...
Analysis of Fillers for Production of Alternative Building Materials Using Magnesia Cement

Tadele, Tamrat (Addis Ababa University, 2008-01)

Fillers, which are available in the country, are essential for the production of magnesia cement boards. These include pumice and lignocellulostic fillers such as bagasse, sawdust and coffee husk. While applying these ...
Impact Assessment on Solid Health-Care Waste Management in Addis Ababa, And Identification of Energy Recovery Possibility

Temesgen, Tatek (Addis Ababa University, 2008-05)

In recent world the best way of protecting community health mainly depends on preventive methods rather than curative means. Due to this reason, having good solid health-care waste management and disposal in every health-care ...
Composting of Khat and Related Materials as Solid Waste Management Option in Awaday Town

Yusuf, Mahabub (Addis Ababa University, 2008-06)

The huge hip of solid waste has reduced the beauty of the town and became a breeding place of some rodents and vectors. Moreover; the waste encourages some people to dispose more and therefore exacerbates the poor ...
Effect of extrusion cooking on some quality attributes of full-fat soy flour and soy protein concentrate from locally grown Soybean (Glycine Max L.) varieties

Muhsin, Fouzia (Addis Ababa University, 2009-01)

Soybean (Glycine max L.) varieties, Clark 63K and SCS1 were obtained from Jimma Agricultural Research Center. Their seed color and shape, seed density; hundred seed mass, hydration and swelling capacities, hydration and ...
Production of Spirulina (Arthrospira) Using Trona As A Major Ingredient of Culture Medium

Endrie, Muhiye (Addis Ababa University, 2009-02)

The impressive protein content and rapid growth of Spirulina in entirely alkaline medium have attracted the attention of both researchers and business men. Spirulina is one of the best solutions for the simple production ...
Neural Network predictive process modeling: Application to food processing

Agide, Mesfin (Addis Ababa University, 2009-03)

Currently, food processing industry is driven by several requirements. This requirement includes ensuring safety, meeting quality standard and customer expectation and reducing production cost to be competent in market. ...
Biosorption of Selected Heavy Metals by Brewery Derived Yeast Biomass

Mesfin, Anteneh (Addis Ababa University, 2009-05)

Waste brewery yeast has been used for biosorption of lead and nickel. The dried, ground and protonated yeast has been contacted with Lead (II) and Nickel (II) solutions so as to investigate impact of PH, Contact time, ...

Browsing School of Chemical and Bio Engineering by Issue Date

Browsing School of Chemical and Bio Engineering by Issue Date

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