Research Papers/Topics in Civil and Environmental Engineering

Application of Modified Fmtlxlylz Dimensional Equation to Sludge Filtration using Sludge Drying Bed

ABSTRACT A natural filtration on sludge drying bed has resulted to a modified equation incorporating the compressibility coefficient. The equation was derived using the application of a modified FMTLXLYLZ dimensional analysis technique. The equation was validated using experimental data from a pilot scale sand drying bed and there was a close agreement between theory and experiment with a correlation coefficient ranging from 0.94 to 0.98. The experimental slope and intercept was found to be ...

Assessment Of The Impact Of Effluents From Bonite Bottlers And China Paper Industrieson The Water Quality In Karanga River, Tanzania

ABSTRACT The raise in industrial development in catchments has left no option but to discharge industrial effluents into water bodiessuch as sea, rivers and streams. Discharging of industrial effluents into water bodies if not done with care through effluent pre-treatment and assurance of complience with allowable standards can lead to water quality impairment. This study was carried outto assess the effects of the effluents from Bonite bottlers and China paper industries on water quality in ...

Assessment Of The Effectiveness Of Blue Nile And White Nile Water Treatment Plants In Khartoum State )A Case Study Of Bahri, Mogran, Alshajara And Jabal Awlia Plants)

Abstract Treatment of water is considered as a critical challenge especially in developing countries since this treatment is an essential facility to conserve the public health and environment by eliminating of waterborne diseases and pathogens and make it acceptable to consumers. The objective of this research is to assess the efficiency of Blue Nile (Bahri and Mogran) and White Nile (Alshajra and Jabal Awlia) water treatment plants which consist to conventional water treatment units such a...

Assessment of groundwater quality for Umbada, District,Omdurman, Sudan

Abstract: This study was dealing with assessment of groundwater quality and its fitness for agriculturaland domestic uses for Umbada district in western Omdurman, Sudan. The objectives of the study were to determine the groundwater quality through chemical and microbiological analyses for the samples taken from the studied boreholes in the area under investigation. Water samples for five groundwaterwells were collected in poly ethylene bottles and analyzed physically, chemically and bacterio...

Synthesis, Characterization and Catalytic Investigations of Pt- Based Binary (Bimetallic) and Ternary (Trimetallic) Nanoparticles

Abstract This work tests the hypothesis that nanoparticles of 75 at.% platinum (Pt) composition and anisotropic morphology, will outperform standard catalysts in (PEMFC) hydrogen fuel cells. A survey of the scientific literature on this topic is first presented. The synthetic strategies which were developed for the preparation of novel Pt-based binary (bimetallic) and ternary (trimetallic) nanoparticles, containing nickel (Ni), cobalt (Co) and/or vanadium (V), are then described. The synthes...

Development Of Iron And Steel Processing Plant In Kenya

Steel plays a very key role in the transformation of an economy, as it is the key driver in any industrial revolution majorly being used in transport, building and construction, power generation and machinery. It is in this regard that the study of iron and steel in Kenya is important. This study sought to determine the viability of setting up an iron and steel processing plant in Kenya, develop a process design for such a plant and determine the plant's economic feasibility. This research em...

Ageing And Axial Cyclic Loading Studies Of Displacement Piles In Sands

Abstract An investigation is presented into the mechanisms governing both the ageing and axial cyclic loading characteristics of displacement piles in silica sands. The thesis considers first the state–of–knowledge regarding the axial capacity of displacement piles in silica sands. Three main areas of uncertainty are identified; the stress regime setup by installation, the mechanisms of ageing that lead to capacity increases with time (set-up), and the effects of axial cyclic loading. Ne...

Development Of An Expert System For The Optimal Design Of Roof And Bridge Trusses

ABSTRACT Several attempts have been made to optimize the design of bridge and roof trusses. This work presents the development of an Expert System (ES) for the optimal design of bridge trusses subjected to moving loads and roof trusses as well. The research improves on such previous attempts in many areas including automation of structure data generation, experience gaining facilities, suggestions and decision making, flexibility, and structural arrangement, shortest possible volume of input...

Reliability And Risk-Based Assessment Of Offshore Jacket Structures In The Niger Delta, Nigeria

ABSTRACT In Nigeria, a large number of jacket platforms installed in the Niger Delta have been operating beyond design life of 25 years due to the exorbitant cost of replacement with new ones. These Jacket structures often undergo corrosion and fatigue damages due to hostile offshore conditions and accidental release of corrosive agents from crude oil production activities. Therefore, there is a growing need to closely monitor the structures to protect unexpected failures. Applications of ap...

Assessment Of Atmospheric Dispersion Of Fly Ash Within The Vicinity Of Van Eck Coal-Fired Power Station, Windhoek, Namibia

ABSTRACT Increase in population led to the growth of industrialisation which has stimulated the development of alternatives to produce electricity, including the use of coal. Coal-fired power plants produce an abundant amount of electricity, addressing the ever-increasing electricity demand. Power plants produce fly ash as a result of coal combustion for electric power generation. The Van Eck Power Station is the oldest and only coal-fired plant in Namibia that is located at the outskirts of ...

An Artificial Neural Network Model For The Optimal Operation Of Shiroro Reservoir

INTRODUCTION The power sector in Nigeria is in a deplorable state due to many factors.

Analysis of Ocean Renewable Energy (ORE) Research and Application in West African Region – A case study of Liberia

Abstract: The unbalance application of the hydropower and others renewable energy generation in west Africa, constant rise in the demand of energy, which leads to damping in the electricity supply and the importance of reducing greenhouse emissions, has brought the adoption of  clean renewable energy sources for generation of electrical power. One of these sources that have the potential to supply the world’s energy needs is the ocean (Home of waters). The current utilization of ocean area...