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Copper (11) Ions Biosorption from Aqueous Solution Using Modified Moringa Oleiferal Leaves (MMOL)
Adebayo Oluwafemi Lawrence,
Kenni Amoke Monisola,
Oyetunde Julius Gbenga,
Jegede Rufus Oluwafemi,
Ajayi Margret Grace
Issue:
Volume 7, Issue 2, June 2018
Pages:
12-18
Received:
11 February 2018
Accepted:
14 March 2018
Published:
1 June 2018
Abstract: The present research work demonstrated the ability of MMOL in removing Copper (II) ions from an aqueous solution. The modified (MMOL) and unmodified moringaoleifera (UMOL) was characterized based on PZC and surface area. Isotherm experiments were conducted and the data obtained were fitted to Langmuir and Freundlich isotherm equations. The Freundlich equation gave the best description of the sorption process and the maximum saturated monolayer sorption capacity of the MMOL for CU (II) ions was 78.45 mg g-1. The kinetics of the sorption process was studied by varying the initial CU (II) ions concentrations and the result obtained was analyzed by using pseudo-first-order and pseudo-second-order kinetic models. The pseudo second-order kinetic model was found to fit the experimental data for the entire sorption period with high coefficient of determination (r2). The effects of MMOL dose were studied using batch sorption system. The linear form of the Langmuir equation was used to analyze the data obtained when the sorbent dosage was optimized by method of continuous variation. The results obtained showed that the equilibrium monolayer sorption capacity, qm, of the MMOL for CU (II) ions decreased (78.45 - 38.66 mg g-1) with an increase in sorbent dosage. The result obtained from pH optimization showed that CU(II) ions removal increases with increase in CU(II) ions solution pH.
Abstract: The present research work demonstrated the ability of MMOL in removing Copper (II) ions from an aqueous solution. The modified (MMOL) and unmodified moringaoleifera (UMOL) was characterized based on PZC and surface area. Isotherm experiments were conducted and the data obtained were fitted to Langmuir and Freundlich isotherm equations. The Freundli...
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Thermodynamic Studies of High-Temperature Processes in the System "Loesslike Loam - Coal - Alkaline"
Babaev Zabibulla Komilovich,
Ermetov Amirbek Ismailovich
Issue:
Volume 7, Issue 2, June 2018
Pages:
19-22
Received:
21 June 2018
Accepted:
7 July 2018
Published:
27 July 2018
Abstract: In recent years, studies of a number of foreign scientists have been reported on the possibility of using loess loam as the main constituent of the ceramic composition in the production of clinker brick. Loess loam is considered a common raw material. In this paper, we consider the purpose, which is research on the study and development of methods that regulate the physicochemical processes occurring in the mass of loess-like loam under the influence of temperature. As a result of these studies it will be possible to intensify thermochemical processes and achieve high-quality products with minimal energy costs. Thus, the possible chemical interactions between minerals of loess-like loam have been theoretically studied, the medium of which is given priority to the decomposition of kaolinite. To intensify the decomposition process of refractory minerals, it is recommended to use an alkali additive in an amount of up to 5%, with a weight ratio of coal.
Abstract: In recent years, studies of a number of foreign scientists have been reported on the possibility of using loess loam as the main constituent of the ceramic composition in the production of clinker brick. Loess loam is considered a common raw material. In this paper, we consider the purpose, which is research on the study and development of methods ...
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Limestone as Solid Mineral to Develop National Economy
Usman Lawan Muhammad,
Mahamud Yusuf Musa,
Usman Yusuf,
Abdussalam Baita Nasir
Issue:
Volume 7, Issue 2, June 2018
Pages:
23-28
Received:
21 June 2018
Accepted:
6 July 2018
Published:
2 August 2018
Abstract: Limestone is a valuable raw material in the world production which signified the distribution or the availability of the raw material within the countries and the economic development also depends on the regular production. In Nigeria the cement industry has made a considerable improvement in production capacity and development. This has resulted to an increase in cement production in Nigeria with its attendant increase in carbon dioxide generation into the atmosphere. Nigeria will be producing over 25 million metric tonnes of cement annually and at the rate of one tonne of cement to one tonne of carbon dioxide, the country will likely be producing 25 million metric tonnes of carbon dioxide from cement production annually. The paper x-rayed this and showed the potential of the Nigeria cement industry in the contribution to global warming.
Abstract: Limestone is a valuable raw material in the world production which signified the distribution or the availability of the raw material within the countries and the economic development also depends on the regular production. In Nigeria the cement industry has made a considerable improvement in production capacity and development. This has resulted t...
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Atomic Absorption Spectrophotometry Detection of Microelement in Some Animal Products from Various of Merowe–Sudan
Mawia Hassan Elsaim,
Aisha Abdelrhaman
Issue:
Volume 7, Issue 2, June 2018
Pages:
29-36
Received:
18 July 2018
Accepted:
3 August 2018
Published:
29 August 2018
Abstract: Environmental problems related to pollution of soil, food, and water have been increased with industrialization. The determination of the twenty one microelements performed by atomic absorption spectrometry (AAS) namely (Cadmium, Cobalt, Copper, Manganese, Lead, Iron and Zinc) in some animal products (yoghurt, Poultry and white cheese) that Sold in groceries public in Merowe-city-Sudan. Results indicated high concentration of Zn and Pb especially in white cheese samples. The lowest concentrations of metals were found in yoghurt. Mean metals concentration (mg/kg) in poultry were ND ND (mean Not Detected) for Cd, 0.14 for Co, 0.014 for Cu, 2.28 for Fe, 0.16 for Mn, 2.78 for Zn. Poultry were found to contain significantly more Zn and Fe than yoghurt but generally less Co. Finally, further investigation is needed to identify the cause of elevated Zn and Fe especially in poultry and whit cheese. Data analysis was carried out by the statistical software SPSS as well as Excel to compare heavy metal concentration between different brands.
Abstract: Environmental problems related to pollution of soil, food, and water have been increased with industrialization. The determination of the twenty one microelements performed by atomic absorption spectrometry (AAS) namely (Cadmium, Cobalt, Copper, Manganese, Lead, Iron and Zinc) in some animal products (yoghurt, Poultry and white cheese) that Sold in...
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Determination of Levels of Some Heavy Metals in Fish and Hens Eggs in Sudan
Mawia Hassan Elsaim,
Aisha Abd Elrhman,
Alaa Ali,
Rash Jame
Issue:
Volume 7, Issue 2, June 2018
Pages:
37-44
Received:
22 July 2018
Accepted:
28 August 2018
Published:
28 September 2018
Abstract: The concentration of the food stuffs by toxic metals is a threat and their exposure for long time has determinate effects on the health tutus of animals. Hen’s eggs and fish are one the main sources of protein but if contaminated by toxic heavy metals will cause a harmful effect on human health. This study aimed to assess the concentration of seven microelements performed by Atomic Absorption Spectrophotometer (AAS). Namely (Cadmium, Cobalt, Copper, Iron, Manganese, Lead, and Zinc) in tow samples of some animal products fresh (fish and hens egg) collected from the district popularly in Merowe-city-North Sudan. Heavy metals in hens eggs and fish samples were analyzed using (AAS) in accordance to standard analytical method data obtained were subjected to statistical analysis (ANOVA). To find out the significant difference of toxic heavy metals in fish sample the obtained results showed the average values Cd and Pb (0.100 and 0.720 mg/kg) respectively in fish sample were higher than permissible limits (p<0.05mg/kg) set by world health organization (WHO). The analysis of heavy metals in fish indicated among seven heavy metals tested, lead showed the highest concentration compered to levels essential elements followed by (0.170 for Co, 0.420 for Cu, 1.910 for Fe, 0.145 for Mn, and 2.685 mg/kg for Zn). Our results also showed that accumulation of heavy metals differed in the hens eggs sample recorded high levels of heavy metals found to Cd and Pb (0.070 and 0.305 mg/kg) respectively. The mean concentrations of essential elements followed (3.335 for Zn, 2.200 for Fe, 0.195 for Cu 0.090 for Co, and 0.070 mg/kg for Mn) respectively. Concentrations in sample of the studied fish showed that there were highly significant different between the Cd and Pb (0.100 and 0.720 m/kg) than hens eggs (0.070 and 0.305mg/kg).
Abstract: The concentration of the food stuffs by toxic metals is a threat and their exposure for long time has determinate effects on the health tutus of animals. Hen’s eggs and fish are one the main sources of protein but if contaminated by toxic heavy metals will cause a harmful effect on human health. This study aimed to assess the concentration of seven...
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