Abstract: Biosorption is the most promising technique to decolorize, separate, and pre-concentrate liquid and gaseous mixtures to facilitate the removal of harmful chemicals because of its efficacy, easy operation, non-toxicity, and mild reaction condition. The present study was carried out to assess the efficacy of coffee husk in the biosorption of reactive Congo red dye. Coffee husk samples were collected from coffee shop in Harar City, Ethiopia. The biosorbent materials were prepared from...
Abstract: Biomaterials have been used as biosorbents either in raw or chemically modified forms. The main aim of the present research work was to synthesize activated biocarbon from leaves and seeds of Lantana camara as biosorbent of heavy metals from wastewater effluent. The biocarbon was functionally characterized by Fourier transform infrared (FT-IR). The biosorbent potential of the biocarbon material was determined based on removal of heavy metal contaminants. The florifarm water sample ...
Abstract: This project was based on biodiesel production from candlenut and calodendrum capense seeds using conventional and biotechnological technique and determination of the oil yields and biodiesel quality. The driving force for large-scale use of biodiesel has been the need to reduce the harmful emissions that result from the burning of petroleum oil as well as our dependence on diminishing reserves of petroleum oil. The aim of the study was to extract oil from Candlenut tree and Calode...
ABSTRACT Present study was conducted to evaluate the effect of green leaf manuring on soil physicochemical and biological parameters. Three out of total four soil samples were treated with Mangifera indica, Gmelina arborea and Dialium guineense leaf manures one for each respectively prior to the cultivation of Telfairia occidentalis plant on each of the soil samples including the untreated soil sample (control). Physicochemical and biological parameters of the soil samples, plant growth char...
ABSTRACT Climate variability is now a reality and its effects continue to affect agriculture especially crop yields. Maize is said to be one of the crops adversely affected by climate variability. It is projected that unless bold steps are taken to reduce the effects of climate variability on crop yields, then the magnitude of its effect shall be enormous. It is based on this uncertainty that this paper was premised to interrogate the effects of climate variability (temperature and precipita...
ABSTRACT Organochlorine pesticides are persistent environmental contaminants which are lipophilicand hydrophobic, leading to their accumulation in biological tissues and the subsequent magnification of concentrations in organisms, progressing through to the food chain. Shellfishes, finfishes, microlayer water, mixed layer water, epipellic and benthic sediment samples were collected from the Lagos Lagoon and analysed for organochlorine pesticide residues. Sampling was conducted between Decem...
ABSTRACT Heavy seasonal use of specific organophosphate and carbamate in the catchment area of Lake Naivasha is a potential cause of pollution of sediment, water and fish in the lake. However, there is lack of data on the potential pollutants, their levels in the aquatic ecosystem and monitoring strategy. The objectives of this study were to identify the commonly used pesticides and the timing of their application in Lake Naivasha catchment area through a survey; to evaluate the performance o...
ABSTRACT Sugarcane is an important cash crop in Kenya. Due to its economic value, efforts are in progress to increase its production. The efforts include intense use of fertilizers, besides the use of high-yielding varieties. The intense use of fertilizers adds heavy metals to the sugarcane growing soils. The sugarcane plants can bioaccumulate heavy metals from soils to levels above safe limits. Metal levels in soil and factors such as soil pH and soil organic matter (SOM) influence levels of...
ABSTRACT Port Harcourt and Omoku are two densely populated towns in Rivers State. This may not be unconnected with the presence of such attractive features as tertiary institutions, oil and gas companies, very large daily markets, free electric power supply (as in Omoku) among others. In the light of the above, it is expected that industrial effluents, domestic waste discharge, automobile emissions, gas flaring etc generate atmospheric aerosols which dissolve to form particulates as pollutan...
ABSTRACT Fruits and vegetables are eaten world over and serve as nutrient supplements. This study compared the nutritional and phytochemical contents of the pulp of C. lanatus dried at 45°C and C. maxima dried at 45°C and 100°C and their effect on the biochemical, haematological, histopathological and growth performance parameters of Wistar rats after feeding with 5% and 10% ratios. The results showed that proximate composition of C. lanatus and most especially C. maxima dried a...
ABSTRACT This study investigates the decolourization of reactive blue 4 textile dye solution by heat activated persulfate. Synthetic textile dyes have been found to be non-biodegradable, toxic and carcinogenic and thus potentially harmful to both the environment and living organisms when improperly discharged to the environment. A lot of attention have been given to Azo dyes which make up approximately 60% of the reactive dyes with limited study conducted on other classes of reactive dyes suc...
Textile dye effluents are released into the environment without any pretreatment and pollute water, to prevent contamination of our valuable resources; removal of these pollutants is of great vitality. For this purpose, waste water samples were collected from dye contaminated sites of Kofar Mata dye pits based in Kano State. Certain parameters which include temperature and pH were determined in the Laboratory. The residual bacterial load was found to be in the range of 1.4 x106 - 4.0x106 cfu....