Extraction of oil from plants and animals’ source for production of fat liqour to render the leather soft by a sort of lubricating the fibres after tanning is being a practice for long. However, the oils and fats that were formerly used almost exclusively are now becoming scarce and expensive, thus there are need to source for alternative and readily available /environmentally friendly agents for this purpose of imparting the physical properties of leather. In this research extraction ...
ABSTRACT Zeolite crystals were synthesized by mixing sodium silicate and sodium aluminate to obtain aluminosilicate gel which was further treated hydrothermally to obtain the final product. The zeolite crystals were characterized by x-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD result identified the synthesized crystals as zeolite z; additional evidence was provided by the SEM images which showed that the zeolite crystals were disc-shaped and the particle sizes rang...
ABSTRACT The total alkaloid, tannins contents and antiulcer activity of the extracts from four selected medicinal plants were investigated. The total alkaloids content (TAC) was evaluated according to the chloride colometric method in which atropine was used as standard. While the total tannins content (TTC) was also determined using Folin Ciocalteau assay in which gallic acid was used as a standard. The antiulcer activity of the extracts was investigated using the ethanol induced model in wi...
ABSTRACT A survey of industrial pollution in Anambra state WFS carried out between February A990 and June 1997, The survey showed that Idemili, Onitsha and Nnewi Local Government Areas h3ve the greatest concentration of industries* Some of these industries.: discharqe their wastes into the environment with very little or no tre3tment. ~histochemical characteristics of rivers godo, Oji and Ebenebe Lake were determined, The concentrations of some water-quality-parameters vi7, dissolved oxygen (...
Abstract This study is aimed at determining the concentration of gold in the gold ore in lujinjimubende district. Currently investing in gold mining is taken as a riskyinvestmentbecause people are not sure of the concentration of gold in lujinji and also the depth where gold concentration is high. The results of this research gave the concentration of gold in lujinji and also the depth of high concentration from the surface, which eased the mining activity by extracting gold at a known height...
ABSTRACT This study focuses on the temporal monitoring and analysis of wastewater from Kira Tocvn Council. The distribution of the chemical constituents major and minor is determined and compared with National Environment Management Authority (NEMA) Standards of wastewater discharge on land and into water bodies. The obtained results indicated that most of collected wastewater samples exceeded the acceptable limits set by standards used for most parameters determined. The wastewater parameter...
Table of ContentsAcknowledgementDeclaration.Dedication ivAbstractList of Figures yiNList of Tables ixCHAPTER ONE 11.1 Background 11.2 Problem statement 31.3 objectives 31.3.1: general objective 31.3.2: specific objectives 31 .4Justification 41.6 Scope of the study 41.7 Significance of the study 4CHAPTER TWO 5LITERATURE REVIEW 52.0. General description of gold 52.1: An overview of gold extraction process 62.2: Researches and developments 82.3: Artisanal and small-scale Gold mining 122.3.1: The...
The concentrations of Ni, Mn, Cd, Cu, Zn, Pb and Cr, were determined in some pastas consumed in Nigeria, with a view to providing information on the dietary intakes of heavy metals and exposure of humans to toxic metals. The concentrations of these seven (7) elements were determined by atomic spectrometry after nitric acid/perchloric acid digestion. The concentrations of the metals (µg/g) in the locally manufactured pasta samples were in the following ranges: Ni (0.109 - 0.344); Mn (0.377 - ...
ABSTRACT The petroleum hydrocarbon composition of sediments from Qua Iboe River Estuary, Ibeno, South-Eastern Nigeria, was studied to determine the levels of these hydrocarbons in the marine environment. Ten sediment sites were sampled using a van veen Grab sampler. Chemical parameter, such as total organic carbon (TOC), was assessed using Blackey-walkey titration method. Soluble organic matter (SOM) was assessed using sohxlet extraction method and total petroleum hydrocarbon (TPH) was asses...
ABSTRACT The efficacy of silica obtained from our local sand as a carrier in synthesis of Nickel-Silica catalyst was investigated. Six samples of soil were collected from two different sites (comprising five white coloured samples collected from Iva valley, lower part of Milliken hill, namely: pottery 2 (P2), down iva (DI), run-off iva (ROI), pottery rock (POR), white chalk (WTC) and one brown coloured sample (UdS) collected from Udi Siding) in Enugu, Nigeria. Prior to treatment by flotation...
ABSTRACT The total alkaloid, tannins contents and antiulcer activity of the extracts from four selected medicinal plants were investigated. The total alkaloids content (TAC) was evaluated according to the chloride colometric method in which atropine was used as standard. While the total tannins content (TTC) was also determined using Folin Ciocalteau assay in which gallic acid was used as a standard. The antiulcer activity of the extracts was investigated using the ethanol induced model in w...
ABSTRACT The azo-ligand, 1,5-dimethyl-2-phenyl-4-[(E)-(2,3,4-trihydroxylphenyl) diazenyl]- 1,2-dihydro-3H-pyrazol-3-one (H3L) and its Zn(II) and Cd(II) complexes have been synthesized and characterized based on stoichiometric, molar conductance, electronic and infra-red spectral studies. The results showed that H3L reacted with the metals in 2:1 ratio. H3L coordination was through the hydroxyl, azo and carbonyl groups to form [Zn(H2L)2] 2+ and [Cd(H2L)2] 2+ respectively. Solvent extraction s...
Abstract The pollution of rivers and lakes by n~tural and human activities is causing some concern thc world over because of the problems it poses to mankind's existence 2 (~epple, ,973'; Hakanson, 1974 ; Bryce-jmitl , 1975~; 4 Hodges, 1977 ; Sada et al, 1%a5, Faculty of Law, 6 University of Ibadan 1988 , His Holiness, Pcpe John Paul XI, 1 9w7). Industrial wheels and products, natural disasters such as floods, explosions and earthqunkcs 1 we continued to pollute the environment including rive...
ABSTRACT Physicochemical and bacteriological analyses of borehole water samples were randomly collected from ten boreholes that supply drinking water to various communities of Aninri, Awgu and Oji River Local Government Areas of Enugu, Nigeria. The boreholes were sampled in both dry and rainy seasons. The following physicochemical parameters: pH, temperature, colour, electrical conductivity, turbidity, total dissolved solids, hardness, calcium, magnesium, sodium, potassium, alkalinity, acidi...
ABSTRACT The composition and bleaching properties of Nteje clay in comparison with two commercially available adsorbents (activated carbon and fuller’s earth) were investigated to study its competence for use as an alternative to high cost imported adsorbents. The modification of the raw clay sample was carried out by acid activation to enhance the surface area of the clay by exchange of octahedral cations e.g Al3+, Fe3+ and Mg2+ with H+ ions which led to the modification of the clay cryst...