Research Article
Assessment of Organic Level Contamination of Soils Surrounding Vehicle Repair Workshops in Wiiyaakara Town, Khana, River State, Nigeria
Timothy M. N, Iyama, W. A, Egbunefu, C. O, Aalonee, E. B, Emejuru, S. W, Nimame, P, Gbode, L
Middle East Research Journal of Engineering and Technology; 21-26.
DOI: 10.36348/merjet.2023.v03i02.001
The aim of this study was to assess the level of contamination using soil organic matter measurement around vehicle repair workshops in Wiiyaakara, Khana, Rivers State, Nigeria. Sampling, preparation, and analysis of surface soils were carried out adhering to standard methods. Stations 1, 2 and 3 had pH of 5.034±0.1, 90±1.09 and 4.890±0.54 respectively. The TOC varied (%) from 2.967–3.916 with a mean value of 3.493±0.39, % TOM had range of 5.115–6.751 with a mean value 6.079±0.69 across the three studied stations. Similarly, % N ranged from 0.149 to 0.196, with a mean value of 0.177±0.02 while % Phosphorus was of mean, 7.098±1.13 but ranged from 5.545 to 8.194. Given that wastes are released into the environment without consideration for potential environmental effects, the wastes produced and disposed of into the environment by auto mechanic repair shops are of major concern. The result showed relatively higher variations in all the study parameters. This is an indication of contamination and should be well monitored to avoid potential pollution. Government should regulate the siting of mechanic workshops especially far from living homes and water bodies
Research Article
Synthesis and Characterization of Schiff Base of 2-Acetyl-5-Methylfuran Glyoxime Hydrazine and its Metal (II) Complexes and Their Evalution for Antibacterial and Antifungal Activities
Adamu, H, Jabbi, A. M, Aliyu, H. N
Middle East Research Journal of Engineering and Technology; 27-32.
DOI: 10.36348/merjet.2023.v03i02.002
Two hydrazone Schiff base was synthesized by the interaction of ethanolic solution of antiglyoxime hydrazine with 2-acetyl-5-methylfuran to obtain the Schiff base. The complexes of Mn(II), Fe(II), Ni(II) and Cu(II) and their Schiff base were synthesized and characterized based on solubility, percentage yield, elemental analysis, melting point and decomposition temperature, infra-red spectra (FT-IR), conductivity measurement, magnetic susceptibility and water of crystallisation. The ligand and the complexes were coloured and stable at room temperature. They were soluble in acetone, DMSO, ethanol, methanol, hexane, chloroform, carbontetrachloride, benzene and DMF but insoluble in distilled water. The melting point temperature of the ligand was 118oC while the decomposition temperatures for the complexes were found to be between 295-312oC. The molar magnetic susceptibility of the complexes were in the range of 3.55 x 10-3 – 1.42 x 10-2erg.G-2mol-1. Molar conductance values of 2.17 – 2.87Ω-1cm2mol-1 show non electrolytic nature of the complexes. The spectral data of the ligand showed bands in the range 1581–1607cm-1 revealing the formation of the azomethine group. A band between 760-795cm-1 indicates the metal nitrogen bonds. The elemental analysis of the complexes showed the metal ligand ratio of 1:2 (M:2L). The antibacterial and antifungal studies showed that the complexes exhibited higher antibacterial and antifungal activities than the ligand but lower than the reference drugs.
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