Assessment of Water Quality Index and Parameter of Chaktai Channel, Chattogram, Bangladesh
| International Journal of Applied Chemistry |
| © 2024 by SSRG - IJAC Journal |
| Volume 11 Issue 3 |
| Year of Publication : 2024 |
| Authors : Ayesha Afrin, Ahnaf Tahmid, Sahab Uddin Shamim, A. J. M. Morshed |
10.14445/23939133/IJAC-V11I3P102
How to Cite?
Ayesha Afrin, Ahnaf Tahmid, Sahab Uddin Shamim, A. J. M. Morshed, "Assessment of Water Quality Index and Parameter of Chaktai Channel, Chattogram, Bangladesh," SSRG International Journal of Applied Chemistry, vol. 11, no. 3, pp. 15-28, 2024. Crossref, https://doi.org/10.14445/23939133/IJAC-V11I3P102
Abstract:
The Chaktai Channel is an important Channel connecting the Karnaphuli River, located in the Chattogram in the Chattogram City Corporation Area. Chaktai Channel is situated in a strategically significant sector of Chattogram City, close to numerous other enterprises. The Karnaphuli River receives the industrial wastewater dumped into it and flows down the channel. Samples were taken at several locations along the Chaktai Channel, which is connected to the river, to ascertain the quality of the water entering the Karnaphuli River. The samples were taken from the channel’s most contaminated section, which is home to several enterprises. The study was conducted between the area of Chaktai Bridge (Location 1), Ashraf Ali Road (Location 2), Fishery ghat area (Location 3), Chaktai Ghat (Location 4) and Asadganj (Location 5), where industries discharge their untreated toxic wastewater. It involved the determination of physical and chemical parameters of surface water at different points. Physical parameters are colour, odour, temperature, turbidity, pH, and Electrical Conductivity (EC), and chemical parameters are Total Solids (TS), Total Dissolved Solids (TDS), Total Suspended Solids (TSS), Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD), Dissolved Oxygen (DO), Total Alkalinity, Total hardness etc. The main objective of this study is to assess the water quality and parameters of Chaktai Channel in terms of the Water Quality Index (WQI) and the following order of water quality index (WQI) is Location 5 (Asadganj) > Location 1(Chaktai bridge) > Location 4(Chaktai ghat) > Location 2(Ashraf Ali Road) > Location 3(Fishery Ghat). The water quality index is higher at the channel’s north side or upper stream near the industrial area. During the study period, the temperature fluctuated from 26.0°C to 31.5°C, while the water temperature ranged from 5.5 to 8.0. From L1 to L5 (L4L5>L2>L1), as well as the overall hardness of the sample (L3>L2>L5>L4>L1). Samples 1 and 2’s COD, DO, and BOD are within the limit, whereas samples 3 through 5 are above the limit.
Keywords:
Chaktai Channel, Chattogram, Karnaphuli River, Physical parameters, Water Quality Index.
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