Rebecca Adepate OLAOYE

Ladoke Akintola University of Technology · Department of Civil Engineering

Water quality and treatment systems are dynamic because they constantly undergo seasonal variations in water chemistry, varying plant operating conditions, and new environmental laws, among others. Because of this, proper monitoring is essential to ensure that the water supplied by the treatment system safeguards public health from waterborne disea...

The dark-brown color of Distillery Wastewater (DWW), often termed melanoidin, causes discoloration and turbidity rise in water bodies, restraining water usage and detrimental to aquatic life. This study investigates Orange Peels (OP) efficiency as a low-cost adsorbent for color removal from DWW. The color of Fresh DWW’s was confirmed on platinum-co...

Nutrients and organic pollutants draining from agricultural fields are the leading sources of surface water quality impairment. Activated carbon (AC) produced from agricultural crop residues has great success in the sequestration of hazardous substances from wastewaters. This study evaluates the potential of coconut shell activated carbon for agric...

Efficient treatment of wastewater generated from food and beverage industries is vital in sustaining the ecosystem. In this study, water samples from wastewater treatment plant of a food and beverage industry were collected in triplicates and characterized for physicochemical and heavy metals to ascertain the efficacy of wastewater treatment before...

Roof material, storage container and retention time are important considerations when designing a rainwater catchment system for present or future usage. This is because they affect the quality of the harvested rainwater which invariably affects the usage as potable or non-potable. In this study, two roof materials (galvanized steel and aluminium c...

River can flood the environment in which it is located and cause loses to lives and properties if not well monitored. River Oba is a natural occurring water course which flows into the ground and becomes dry at the end of it course without reaching another body of water leaving soil material at the bed of the river. In this research, water depth, v...

Roof material, storage container and retention time are important considerations when designing a rainwater catchment system for present or future usage. This is because they affect the quality of the harvested rainwater which invariably affects the usage as potable or non-potable. In this study, two roof materials (galvanized steel and aluminium c...

Adequate supply of potable water is a major challenge in most leper colony with emphasis often placed on water needs of “normal” people but little concern on the safe water source for the physically challenged and vulnerable lepers with limited mobility who cannot search for other sources of water outside designated colony. This study was designed...

The assessment of leachate impact on groundwater is very crucial to human health and its environment. This research work aimed at assessing Labete dumpsite and its effects on groundwater integrity in the vicinity of the dumpsite. Soil samples were collected for leachate analysis at a depth of 0.5m from the earth’s surface within the proximity of th...

The adhesion of metal ions from wastewater to surface of a material in an adsorption process had proven to be effective for remediation of wastewater before discharge. There is a growing demand to utilize alternative low-cost adsorbents for the removal of heavy metals from galvanic wastewater in most developing countries. Cow bones are cheap, readi...

Rainwater quality

In this study, the efficiency of cow-bone ash (CBA) as an adsorbent for the removal of metals from real-time cassava wastewater was examined. Wastewater was characterized using atomic absorption spectrophotometry (AAS). The adsorbent was characterized using X-ray Fluorescence (XRF), Scanning electron microscopy (SEM), and Fourier transform infrared...

The city of Ilorin in Nigeria has experienced high population growth and rapid urbanization. Agba Dam is one of the major sources of potable water in Ilorin, and currently being threatened by anthropogenic induced encroachment activities, with potential for significant derogatory effects on its quality. Therefore, this paper assesses the qualitativ...

Abstract. With the geometric population growth in developing nations comes increase in waste generation, these wastes ranging from industrial to agricultural to municipal solid waste calls for measure for its effective management and disposal so as to preserve the ecosystem. An effective measure of containing this large waste generated, is through...

Ensuring and supplying adequate water in colonies is the most urgent and significant challenges faced by most lepers in developing countries. This is crucial as most lepers had to live out their lives in the wilderness sited far from the cities where the water mains do not get to due to the stigmatization associated with the disease. Up till now mu...

Runoff from rainfall can significantly contribute to variation in the quality of surface waters. The effects of rainfall intensity on surface water quality is increasingly becoming a cause for concern because of its indirect impact on the cost of water treatment, and consequently on the quantity of water available for public water supply. Recent hy...

Domestic water supply to residential buildings through hand-dug wells has been widely accepted as a reliable substitute to government owned municipal water supply system in Nigeria. This Paper investigates the effectiveness of Ultraviolet (UV) Water Sterilizers as a suitable replacement of chlorine disinfection in the removal of microbiological con...

A major source of environmental burden in construction industries is concrete waste because its generation and accumulation start from the time fresh concrete are produced on-site or off-site till its hardens. This made concrete the largest portion of solid waste stream by weight in the construction industries. Recycling of these waste materials in...

The menace of wastewater pollution in the 21st century is becoming alarming. Application of the low-cost adsorbents for wastewater treatment has received more attention this moment in environmental history than never. Most industrial wastewater has not been receiving adequate treatment prior to disposal into the nearby stream, and this is a potent...

The purpose of this study is to investigate the effectiveness of banana peel activated carbon as an adsorbent in the removal of cyanide and selected metals from fresh cassava wastewater collected from the discharge pit. Fresh banana peels were dried, adequately prepared and treated with 0.1 M HCl. Batch experiments were conducted by varying the ads...

Most industries produce emissions in the generation of energy and during production, these industrial emissions is one of the leading causes of gradual or rapid change in atmospheric conditions that pose serious threat to the purity of rainwater. Rainwater is a sustainable natural resource for domestic, industrial and agricultural water supply. It...

Large amount of cattle dung are generated daily from slaughter houses which are not only of environmental concern due to methane emission but also present a significant health risk if not adequately managed. In this study, cow dung obtained from slaughter house was anaerobically digested and its composition evaluated.8 kg of the collected cow dung...

Most waterborne diseases can be prevented using simple, low cost water filtration techniques. The aim of this study is to design a low cost domestic slow sand filter, which can be operated and maintained effectiveness at household level by a member of the family, and determine its effectiveness in removing selected contaminants from the raw groundw...

River can flood the environment in which it is located and cause loses to lives and properties if not well monitored. River Oba is a natural occurring water course which flows into the ground and becomes dry at the end of it course without reaching another body of water leaving soil material at the bed of the river. In this research, water depth, v...

Although, groundwater constitutes a major source of water supply especially in developing countries, however wastes generated arising from industrial growth and further complication caused by its indiscriminate disposal have been a major risk to groundwater vulnerability. Hence in this study, preliminary impact assessment of wastewater discharged f...

Improper solid wastes management poses environmental risks to both humans and plants. Landfilling and Incineration are two identified prominent means of waste disposal, and they both have residual pollution impacts on the environment. This study assessed the environmental impacts of these waste disposal methods from the waste dumps of Odo-Oba, Ogo...

One of the many challenges faced in developing world is the issue of waste management. Organic fibres forms major percentage of waste produced from agricultural products and should be of great concern. Fibres have been used to reinforce composites concrete to obtain lighter weight, reduce shrinkage effects which serve to reduce environmental waste....

Waste from healthcare institutions generally ought to be treated and disposed hygienically. However, the type of institution normally determines the material component and the nature of the waste generated whether it is hazardous or non-hazardous, infectious or non-infectious waste. Also health status of an individual or community is a function of...

Rainwater from roof catchments can be a valuable source of water and can be quite safe to drink when stored in a properly installed and well maintained water storage system. It is noteworthy to observe the capacity intended for rainwater storage because this factor is a determinant to both its initial cost of construction and its effectiveness, esp...

Roof material is an important consideration when designing a rainwater catchment system .This is because it affects the quality of the harvested rainwater which invariably affects the usage as potable or non potable. This study was carried out to determine the quality of rainwater from four different roofing materials (asbestos, aluminium, concrete...

Roof material is an important consideration when designing a rainwater catchment system .This is because it affects the quality of the harvested rainwater which invariably affects the usage as potable or non potable. This study was carried out to determine the quality of rainwater from four different roofing materials (asbestos, aluminium, concrete...

Soil contamination is one of the largest environmental challenges facing developing countries like Nigeria. It is a problem because sustainability of the environment depends largely on the sustainable ecosystem in which soil is a contributing agent. Pollution poses a serious hazard to all the users of an ecosystem. In conjunction with this, enginee...

Wastewater from infected leprosy patients is expected to contain considerably higher concentrations of pathogens than standard domestic wastewater and, therefore, is more infectious. Isolation of lepers’ is thought to prevent the spread of a wide range of infectious diseases that could potentially be contacted through direct or indirect exposure fr...

The behaviour of palm kernel shell (PKS) concrete at elevated temperatures was examined in this work. Concrete mix ratio of 1:2:4 of cement, sand and coarse (granite/PKS) aggregates for cubes of 150mm x 150mm x 150mm was employed. A total of 84 cubes were cast using ordinary Portland cement by varing the percentage of the PKS from 0 to 30. The cube...

Wastewater will always be generated whenever food in any form is handled, processed, packaged and stored. The quantity of this wastewater and its general quality (pollutant, strength or nature of constituents) both determines the treatability, management and disposal of the wastewater. Slaughterhouse wastewater has a complex composition and is very...

Quantities and types of solid wastes generated at Ogbomosho leprosarium (Oyo State, Nigeria) have been investigated. Data collection, through waste sampling and analysis, interviews, questionnaire surveys and field observations, was conducted between August and November 2006. Results indicate a notably low mean waste generation rate of 241.5 g/h/d,...