Volume-17 ~ Issue-6 ~ June 2024

Abstract: Justification: the Tracuateua river supplies and is supplied by many streams in several cities, where its mouth is in the city of Santa Barbara, where it is of great importance for the local economy due to tourism, small agricultural productions, among other activities. However, due to rapid urban growth in the region and the emergence of small and medium-sized industries and large plantations, there is a need for constant monitoring of the quality of this river. objective: the general objective of this research is to carry out a physiochemical analysis of the water of the Tracuateua River, in the part that crosses the city of Santa Barbara do Pará, to identify possible impacts of urban development on limnological resources; and as specific objectives: Identify possible risk agents for local environmental degradation; predict possible impacts on environmental health due to the degradation of limnological resources, among others.......

Keywords: Environmental chemistry, Water analysis, Limnology, Hydrographic basin, Tracuateua River - State of Pará (Brazil), Santa Barbara do Pará City (Brazil).

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Abstract: Information technology in chemical industry is the application of digital tools and technologies to support the improvement of operations, processes and values chains of businesses in the chemical industry. This paper examine the implementation of information technology in the US chemical industrial sector. Data was collected through qualitative and quantitative methods. Questionnaires were distributed to 20 companies to complete the survey which were then subjected to analysis. The result of the study shows that the rate of information technology use in US chemical industry........

[1] Alrubaishi, W., Alboukadel, A.S. And Shaaban, T. (2017). A Novel Integrated Approach For Supply Chain Management In The Chemical Industry. International Journal Of Production Economics, 182, 361-375. Doi:10.1016/J.Ijpe.2017.05.15
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[4] Dewett, T., And Jones, G.R. (2001) "The Role Of Information Technology In The Organization: A Review, Model, And Assessment," Journal Of Management (27). Pp.313-346.
[5] Donovan, S.D., Soh, C.C., And Riley, G. A. (2001). Profitable Growth Through Customer Focus: Lessons From The Chemical Industry. Harvard Business Review, 79 (6), 114-122..

Abstract: Background: Physico-chemical and biological components, shaped by environmental and anthropogenic dynamics affect water quality in different seasons.
Materials and Methods: Water samples were collected along the river in dry and wet seasons. Parameters investigated were pH, temperature, conductivity (EC), turbidity, total dissolved solids (TDS), total suspended solids (TSS), lead, iron, manganese.......

Key Word: Physico-Chemical, Water-Quality, Mutonga River, Tharaka-Nithi, Kenya

[1]. Andrews, G. (2018). "Resolving the Water Pollution Crisis in the Philippines: The Implications of Water Pollution on Public Health and the Economy," Pepperdine Policy Review: 10(1), 2; 1-15.
[2]. Arwenyo, B., Wasswa, W., Nyeko, M. & Kajozi, G. (2017). The Impact Septic and nearness to spring water Points on Water Quality. African Journal of Environmental Science and Technology, 11 (1):11-18.
[3]. Ayenuddin H., Abu, S. & Papia S. (2018). Assessment of the Physico- chemical and Bacteriological Parameters in Surface Water of Padma River, Bangladesh. Jounal of Applied Water Science, 9(1): 1-18.
[4]. Ayesh, D. (2012). The Physico-chemical Parameters of Ground Water. African Journal of Basic and Applied Sciences, 4(2); 28-29.
[5]. Batram, J., Slaymaker, T. & Cronk, R. (2015). Monitoring Drinking Water, Sanitation, and Hygiene in Non-Household Settings: Priorities for Policy and Practice. International Journal of Hygiene and Environmental Health, 218(8), 694-703.

Abstract: An eco-friendly method of synthesis of substituted-1, 3, 4-oxadiazol-2-yl-benzenesulfonamides through reflexion of a mixture of an appropriate (4-aminophenyl)-5-substituted-1,3,4-oxadiazole (1), Et3N, an appropriate sulfonyl chloride (2) in CH3Cl and catalytic amount of DMAP [4-(N, N-dimethyl-amino) pyridine] in neat and solvent-free conditions under microwave irradiation has been developed. The synthesized compounds were characterized by microanalyses, IR and 1H & 13C NMR spectral studies. These compounds were evaluated for their antimicrobial activity against certain bacteria and fungi and found that all have shown moderate antimicrobial activity.

Key words: Heterocyclic sulfonamides, anti-microbial activity, microwave irradiation, Multicomponent reaction

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Abstract: Justification: The Pará River, also called the Marajó Canal, bathes the river island of Mosqueiro, which belongs to the Municipality of Belém in Pará State (Brazil). The island of Mosqueiro's economy is mainly focused on tourism, fishing, small businesses, and agriculture. Rivers are one of the most fragile parts of Amazonian water resources, in this sense it is necessary to monitor anthropogenic impacts to understand the risks and preservation, especially of a river that is a source of economy for the local population.
General objective.....

Key words: Environmental chemistry, Water analysis, Limnology, Hydrographic basin, Pará River - State of Pará (Brazil), Mosqueiro Island (Brazil).

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