Abstract Elemental bismuth has been reported to exhibit antimicrobial activity, but it does so only at relatively high millimolar concentrations due to its limited solubility in water. However, its solubility can be increased upon chelation with other materials like curcumin thereby increasing its potential as antimicrobial agent even at much more lower concentration. In this study, a novel Bismuth nanoparticless were prepared from non-toxic curcumin as stabilizing and capping agent to elim...
Reverse Osmosis (RO) is the finest of all membrane filtration system, it is a membrane based technology to purify water by separating the dissolved solids from feed stream resulting in permeate and reject stream for a wide range of applications in domestic as well as industrial applications. The objective of this paper is to review the concept of reverse osmosis and the current developments in the RO membrane materials which are the key determinants in the process. This review paper also ...
Phytochemical investigation was carried out on the crude ethanol extracts of the leaves of Spondias mombin. The antibacterial activity of the ethanolic and the Chloroform leaf extract was tested against four bacteria; Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa and Salmonella typhi using disc diffusion method. The results indicated that both extracts showed inhibitory activity against clinical isolates of the gram negative bacteria Staphylococcus aureus, P. aerugi...
The physicochemical parameters and levels of selected heavy metals (Cd, Cr, Mn, Zn and Pb) in soil around Dana Steel Rolling Limted Katsina were investigated in this research. The sample area was divided into four units; East, West, North and South and label as A, B, C and D respectively using stratified random sampling method. The soil was digested using H2SO4, HClO4 and H...
ABSTRACT This research was carried out to determine the effects of three organic fertilizers namely: cattle dung, poultry droppings and pig excreta on the growth of fingerlings of Clarias gariepinus. A total of 120 fingerlings of average length (15.3±2.10)cm and weight (34.2±8.73)g were used for the study. The fingerlings were subjected to three different organic fertilizer treatments. Each treatment was replicated thrice. For proper assessment, a control experiment containing no ...
PREFACE Crude oil is a naturally occurring brown to black flammable liquid which is composed of hydrocarbon compounds, non hydrocarbon compounds, organometallic compounds. Various types of non hydrocarbon compounds present in crude oil are organic sulfur, nitrogen and oxygen compound. Traces of this compound causes problem to catalytic refining process in the refining industry. Hydro treatment process is used to eliminate the problems caused by this compound TABLE OF CONTENT Abstract CHAP...
ABSRACT Radon is a natural radioactive inert gas that is odorless, colorless and tasteless. It cannot be detected without special equipment and it occurs as a product of uranium decay. Radon is an unstable radionuclide that disintegrates through short lived decay products before eventually reaching the end product of stable lead. The short lived decay products of radon are responsible for most of the hazard by inhalation and ingestion. Radon and its decay products emit highly ionizing alpha-r...
ABSTRACTS Some compounds have been proposed as analytical reagents for the spectrophotometric determination of chromium, tin and lead ions. The application of these reagents for the determination of these metal ions is listed and several procedures are described to illustrate the fundamental conditions for the spectrophotometric determination of these metal ions. Key words: Analytical reagents, chromium, tin, lead, spectrophotometric determination, extraction, complexes. 1.0 INTRODUCTION Ch...
CHAPTER 1 INTRODUCTION Energy is essential to man’s continued existence. Today, the energy used by most industrialized and developing nations is oil, coal and natural gas. This need of energy is increasing continuously,1 fossil fuel reserves are fast depleting, crude oil prices are soaring and there is considerable uncertainty in their near-future availability. Countries lacking petroleum-based resources are facing foreign exchange crisis due to importation of c...
Water supply and Sewerage services in urban areas have in the past commonly been provided by monopolized Municipal Councils under the previous Local Government Ministry. As part of a general move by the sector to shift to market-led systems by restructuring the sector, a new paradigm emerged to transform water utilities into more modern service delivery companies that emphasize on operational and financial sustainability. This report presents findings on attributes of a well-run Water Treat...
ABSTRACT In this research project, the various nail was subjected to six environments so as to check the effect of the environments on corrosion of the nails. Two sets of nails were used; normal nail and concrete nail. Six of each type while the other not coated. The environments used are acidic solution, alkaline solution, salt solution, boiled water, air medium and lubricating oil medium, which served as a control medium. It was observed from the graphs of the weight of metal against time...