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Synthesis, Characterization and Biological Activities of Schiff Bases and Their Transition Metal Complexes
Issue:
Volume 8, Issue 2, June 2023
Pages:
22-33
Received:
22 March 2023
Accepted:
17 May 2023
Published:
29 May 2023
Abstract: Schiff bases are aldehyde or ketone derivatives that are made by condensation of primary amines and carbonyl compounds and have their carbonyl organization (C = O) replaced by an imine or azomethine organization (>C = N-). Schiff bases are a key ligand elegance in coordination chemistry and are widely used in a variety of fields. Metallic buildings have extra organic action than the relating ligands. Schiff base complexes in particular are particularly intriguing due to their stability, electron-donating potential, photochromic, optical nonlinearity properties, and biological interest. The coordination of Schiff bases with steel ions serves as the foundation for each one. With -NH2 and -COOH coordination sites, amino acids are functionally important in many biological processes and form Schiff bases that easily coordinate with metallic ions when combined with aldehydes or ketones. The majority of Schiff bases derived from amino acids and their metallic complexes exhibit specific pharmacological properties. This assess centers around research related with Schiff base buildings of amino corrosive subordinates throughout the course of recent years. We spotlight the antimicrobial, anticancer and cell reinforcement amino acids of a couple of Schiff base mixtures with nitrogen, oxygen and sulfur contributors and different metallic particles.
Abstract: Schiff bases are aldehyde or ketone derivatives that are made by condensation of primary amines and carbonyl compounds and have their carbonyl organization (C = O) replaced by an imine or azomethine organization (>C = N-). Schiff bases are a key ligand elegance in coordination chemistry and are widely used in a variety of fields. Metallic buildings...
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Production of Biogas from Residential Bio-waste with the Digestate as Soil Enhancer
Ikelle Ikelle,
Nworu Jerome,
Eze Nkechi,
Nworie Felix,
John Jeddidiah,
Elom Nwabueze,
Ogah Ansalem
Issue:
Volume 8, Issue 2, June 2023
Pages:
34-38
Received:
13 June 2022
Accepted:
29 June 2022
Published:
5 June 2023
Abstract: The research involved the generation of biogas by the inoculation of a mixture of residential bio-wastes with fresh rumen from cow to produce biogas. The wastes were collected from residential areas, sorted out, and the bio-wastes was stored in polyethylene bags. They bio-wastes were further broken down into smaller bits and properly mixed with freshly collected cow dung and water to form paste, before they were transferred into the bio-digester. The bio-digester is an air tight cylindrical steel container where anaerobic decomposition of the bio-wastes occurs in the presence of methanogens. The experimental set up was connected and the biogas yield was monitored for a period of 30 days. The biogas generated was stored. The digestate was subjected to further tests, such as Kjeldahl analysis to determine the nitrogen content (0.28%), conductance analysis was also carried out to determine the phosphorus content (137.5μg/ml) and Atomic Absorption Spectrophotometer (AAS) for potassium content (1.78ppm). The results of the analysis carried out on the digestate showed that it can be used as a soil enricher or bio-fertilizer. The study showed that the residential bio-wastes generated at home can serve as a source for the generation of biogas and hence mitigate pollution arising from indiscriminate waste disposal.
Abstract: The research involved the generation of biogas by the inoculation of a mixture of residential bio-wastes with fresh rumen from cow to produce biogas. The wastes were collected from residential areas, sorted out, and the bio-wastes was stored in polyethylene bags. They bio-wastes were further broken down into smaller bits and properly mixed with fre...
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Growth and Yield of Cabbage (Brassica oleracea L.) as Influenced by Different Rates of Nitrogen Fertilizer at Guder, West Shoa, Ethiopia
Asfaw Shaka Gosa,
Bikila Olika Fufa
Issue:
Volume 8, Issue 2, June 2023
Pages:
39-42
Received:
12 November 2022
Accepted:
29 December 2022
Published:
5 June 2023
Abstract: Cabbage (Brassisca oleracea L.) is biennial crop with a very short stem supporting a mass of overlapping leaves to from a compact head. It is grown for its head in more than ninety countries throughout the world. Cabbage is grown under irrigation and rain fed condition in Ethiopia. Ethiopia accounted for 12% of the total production in Africa (Nicolas et al., 2012). The production of cabbage can be increased either by improving inherent genetic potential of the crop or through application of better agronomic management such as fertilizer rate which contribute to substantial amount of crop. A field experiment was conducted under irrigation in Guder, West Shoa Ethiopia to evaluate the effect of different rate of nitrogen fertilizer on the growth and yield of cabbage. Four nitrogen rates (0, 50, 100, and 150kg/ha) were used as a treatment. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. The study results revealed that plant height, leaf number per plant, leaf length, leaf width, head diameter, fresh head weight, dry weight and marketable yield were highly significantly (p<0.01) affected while spread of plant was significantly (p<0.05) affected by nitrogen fertilizer rates. The highest plant height (32.37cm), number of leaves plant-1 (11.45), leaf length (25.57 cm), leaf width (28.07cm), head diameter (11.83 cm), spread of plant (43.70 cm), fresh head weight (0.810 kg plant-1), dry weight (0.0117 kg plant-1), and the highest marketable head yield hectare-1 (79.83 ton ha-1) were obtained at 150kg ha-1 of nitrogen rate. Therefore, application of 150kg nitrogen fertilizer per hectare was suitable for cabbage production to obtain higher head yield in the study area.
Abstract: Cabbage (Brassisca oleracea L.) is biennial crop with a very short stem supporting a mass of overlapping leaves to from a compact head. It is grown for its head in more than ninety countries throughout the world. Cabbage is grown under irrigation and rain fed condition in Ethiopia. Ethiopia accounted for 12% of the total production in Africa (Nicol...
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Treatment of Effluent Textile Using Nanofiltration: Study of Fouling and Antifouling
Aouatef Boughdiri,
Karim Kostantini,
Mohamed Oussama Zouaghi,
Ezzedine Ferjani
Issue:
Volume 8, Issue 2, June 2023
Pages:
43-52
Received:
4 September 2022
Accepted:
6 June 2023
Published:
20 June 2023
Abstract: The textile industry is a large water consumer. As regulations become stringent and the cost of freshwater increases, reclamation of wastewater becomes more and more attractive. Membrane methods, including UF, MF and NF, belong to high-efficiency processes which can be competitive with traditional methods of water treatment. In this paper the nanofiltration membrane, has shown their effectiveness as a solution for the cleaning and recycling of textile effluents. Experiments demonstrated that membrane treatment is a very promising advanced treatment option for pollution control for textile industry effluents. However, the phenomenon of fouling seems to be their major disadvantage, thus causing a crucial reduction in productivity and a high cost of maintenance. Trying to contribute to the existing efforts to cure to this problem, our study is related to the analysis and the development of the parameters which assign the fouling and the cleaning of the NF membranes during the filtration of the textile effluents containing reactive dyes. This study enables us to get rid of this phenomenon, which occurs during the frontal filtration of the solutions containing a mixture of “dye-salt”. For this purpose, three theoretical models were compared. We concluded also that rapid cake formation occurred during initial filtration and caused an initial sharp decrease in permeate flux, and the most descriptive model is cake filtration. A regeneration efficiency index allows increasing the optimal conditions of this operation.
Abstract: The textile industry is a large water consumer. As regulations become stringent and the cost of freshwater increases, reclamation of wastewater becomes more and more attractive. Membrane methods, including UF, MF and NF, belong to high-efficiency processes which can be competitive with traditional methods of water treatment. In this paper the nanof...
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