ABSTRACT
Activated carbon was produced from groundnut shells by acid activation method at temperature of 600oC. The effects of carbonization and acid impregnation time on the adsorption potential of the activated carbons on adsorption of iron and lead from river water was examined. The results show that the concentrations of iron and lead before purification are 1.84mg/l and 0.05mg/l respectively. After purification lead was not detected in any of the samples while the concentrations of iron reduced from 1.84mg/l to 0.29mg/l. Thus, this study showed that activated carbon produced from groundnut shell is suitable for the adsorption of metal ions and as such could be used as a cost effective adsorbent in the treatment of waste water.
CHAPTER ONE
1.0INTRODUCTION
1.1BACKGROUND OF THE STUDY
Environmental pollution
Environmental pollution is a problem both in developed and developing countries urbanization such as population growth and urbanization invariably place greater demands on the planet and stretch the use of natural resources to the maximum. It has been argued that the carrying capacity of Earth is significantly smaller than the demands placed on it by large numbers of human populations and overuse of natural resources often results in nature’s degradation (G. Aranobich and Donolwe, 1998).
Environmental Studies
Is a multidisciplinary academic field which systematically studies human interaction with the environment in the interests of solving complex problems. Environmental studies bring together the principles of sciences, Commerce/Economics and Social Sciences so as solve contemporary environmental problems. It is a broad field of study that includes also the natural environment, built environment, and the sets of relationships them. The field encompasses study in basic principles of solve contemporary environmental problems. It is a broad field of study includes also the natural environment, built environment, and the sets of relationships between them. The field encompasses study in basic principles of ecology and environmental science, as well as associated subjects such as ethics, geography, policy, politics, law, economics, philosophy, environmental sociology and environmental justice, planning pollution control and natural resource management. Ecology and environmental science,
as well as associated subjects such as ethics, geography, policy, politics, law, economics, philosophy, environmental sociology and environmental justice, planning, pollution control and natural resource management.
1.2 AIMS AND OBJECTIVES
The aims and objectives of this research work include the following:
i) To produce activated carbon from Groundnut shell.
ii) To characterized ash and moisture content from Groundnut shell.
iii)To characterized volatile matter and fixed carbon.
iv) To Determine adsorption capacity
1.3 MOTIVATION OF THE WORK
Rapid industrialization has cumulatively increased the problem of drinking water scarcity and the demand for contaminated free water for daily consumption. A typical problem of chromium contamination in water is faced by the residents of baysla area in port-court district of Nigeria. It has been included in the list of world’s top ten polluted places.
1.4 IMPORTANCE OF THE WORK
Over the last few decades, adsorption has gained importance as a purification, separation and recovery process on an industrial scale Activated carbon is perhaps one of the most widely used adsorbents in industry for environmental application. Activated carbons are carbons of highly microporous structure with internal surface area and porosity. Any cheap material with a high carbon content, low inorganic can be used as a raw material for the production of activated carbon (Basal et al, 1988).
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