Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Water Quality Assessment of Balu River, Dhaka Bangladesh

Most. Nazma Sultana
Department of Environmental Science, Stamford University Bangladesh, Dhaka 1209, Bangladesh

Md Sahadat Hossain*
Department of Environmental Science, Stamford University Bangladesh, Dhaka 1209, Bangladesh

Abstract/ Executive Summary:

The rivers of Bangladesh play an important role in socio-economic development as well as balancing the ecosystem. Unfortunately, Rivers especially in Dhaka city are being significantly polluting by industrial effluents discharge, solid wastes disposal, and connection of urban sewage. These effluents are containing different hazardous chemicals such as chromium, aluminum, sulphur, lead, salts, etc. which have been affecting this River water quality severely. This study is aimed to assess the present status of the water quality of Balu River in terms of heavy metals contamination. It is found the average pH in the water of Balu River was 7.76 and Electric Conductivity (EC)ranged from 910 to 1082μS/cm. Besides, the study found the average Fe, Pb, Cd and Cr concentration were950, 7.6, 0.56, and 200μg/L, respectively which representing the higher than the WHO and Bangladesh standards. Therefore, it is important to manage the Baluriver water quality.

Keywords: Balu River, Water Quality, Heavy Metal, Pollution, Dhaka, Bangladesh.

Location: Dhaka, Bangladesh

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Water quality

Objectives:

This study was conducted to assess physicochemical parameters and the concentration of heavy metals in the BaluRiver. This study is expected to be important for maintaining the water quality as well as reducing future pollution.

Methodology:

2.1 Study area Balu River is a common polluted area where toxic substances are mixing with water quality in an unscientific manner. Thus regular monitoring of this area is crucial for enforcing the appropriate steps of the environmental management system. The study was conducted at Balu River of Dhaka district near the Demra. The exact study area is under the Bottola Bridge, Chanpara. Water samples were collected from the one station (total 5samples)of the Balu Riveron 10 March 2018 afternoon. The sample numbers areA1, A2, A3, B2, and B3. Sample A and B sets were collected from south and North of Bridge, respectively. 2.2 Sample collection: Five samples were collected in 250 ml plastic bottles from various sampling points. Prior to sample collection, all bottles were cleaned with dilute acid followed by distilled water. Before sampling, the bottles were rinsed again three times with the water to be sampled. 250 ml of water sample in each bottle were collected from each sampling point from the surface of the water. 5ml of 1M HNO3 solution was added and sealed immediately to avoid exposure to air and to protect water samples from fungal and pathogenic damage. 2.3 Sample analysis: pH was measured using pH meter (HANNA Instruments) and electrical conductivity (EC) was measured by conducts meter (HANNA Instruments). Heavy metals (Pb, Cr, Cd, and Fe) concentrations were measured with the help of an Atomic Absorption Spectrophotometer (AAS).

Source of Information: Water Conservation & Management (WCM) 3(2) (2019) 08-10

Article Link (Online Journal): DOI : http://doi.org/10.26480/wcm.02.2019.08.10

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

With the increasing population, the demand for water is increasing to such an extent that now a viable solution for the treatment of surface water has become mandatory. As discussed in this article, all the rivers around Dhaka city are threatened by pollution. In the present study, the environmental condition of the Balu River in the Dhaka city area has been investigated during the period of March 2018. The measurement of physicochemical parameters which included watercolor, pH, and EC has been summarized. The data of different aspects have been analyzed and discussed. Heavy metal concentrations of the selected sampling point of Balu river are also measured. The obtained results revealed that the average concentration of Fe, Pb, Cd, Cr are 950, 7.6, 0.56, and 200μg/L, respectively. These data show that the amount of Fe, Pb, Cd and Cr in Balu river water were much higher than the Bangladesh standards of DOE 2002. A significant reading of heavy metals concentration indicates the input of pollutants from various sources like industrial effluents, domestic sewage, municipal sewage, agricultural runoff and so on.

Knowledge Management: Journal