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Water Quality Analysis of Surface Water Bodies Along the Dhaka-mawa-bhanga Road Based on Pre-monsoon Water Quality Parameters for Aquaculture

Rumman Mowla Chowdhury
Junior Engineer, Institute of Water Modeling, Dhaka

Sardar Yafee Muntasir
Stamford University Bangladesh

Md. Niamul Naser
Department of Zoology, Dhaka University, Dhaka, Bangladesh

Sardar Rafee Musabbir
Department of Civil Engineering, BUET

Abstract/ Executive Summary:

Rural populations in Bangladesh often are heavily dependent on small reservoirs for their water supply not only for drinking and domestic purposes but also for aquaculture. This study was carried out to assess surface water quality of water bodies along the Dhaka-Mawa-Bhanga (N8) which is of 60 km in length. As all the water bodies of are expected to be productive due to the geophysical and climatic condition of the country, it will be better to ensure the perfect utilization of the existing resources. In the way to finding out the feasibility for aquaculture in the surface water the following parameters: pH, electrical conductivity, total dissolved solids, salinity, dissolved oxygen, transparency before monsoon as it is the suitable season for the beginning of breeding; were collected and analyzed. The results were compared with standard values of aquaculture prescribed by South African Water Quality Guidelines. From data analysis it was found that several water quality parameters like temperature, DO, BOD, electrical conductivity, salinity, TDS showed variability but they are almost within the acceptable average range for most sampling points. Water quality of Thandu Chowdhuryer pukur, Pachchor Bajar pukur, Arial Kha, Pulia Bajar, Sirajdhi khan indicated that the water quality was not suitable for aquatic animals as their DO, pH and secchi depth were not suitable enough. Proper treatment of water is necessary there before aquaculture is commenced.

Keywords: Physicochemical parameters, Statistical Parameters, Pre-monsoon.

Location: Dhaka, Munshiganj, Madaripur and Faridpur districts

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Water quality

Objectives:

To assess surface water quality of water bodies along the Dhaka-Mawa-Bhanga (N8) which is of 60 km in length.

Methodology:

The present study was conducted along Dhaka-Mawa-Bhanga (N8) is a 60 Km existing road touching Dhaka, Munshiganj, Madaripur and Faridpur districts covering 8 upazilla’s namely, Keraniganj, Serajdikhan, Sreenagar, Lohajang, Shibchar, Faridpur sadar, Sadarpur and Bhanga. To monitor and for better observation of water quality of the study areas, sampling target was aimed to cover the important zones of the lakes. For BOD measurement, a 500 ml bottle was used for collection of water samples and the oxygen was fixed at the sampling site before being carried to the laboratory for further analysis. The examination and analysis of the water bodies including laboratory analysis was done as per the standard methods of USEPA. Water quaity parameters viz. temperature, BOD, dissolve oxygen,COD, transperancy etc. was measured. Statistical analysis was done.

Source of Information: International Journal of Civil Engineering and Technology (IJCIET), ISSN 0976 – 6308 (Print), ISSN 0976 – 6316(Online) Volume 3, Issue 2, July- December (2012)

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It is evident that several water quality parameters like- temperature, DO, BOD, electrical conductivity, salinity, TDS showed variability but they are almost within the normal range. Some of the water parameters of closed water ponds indicated that the water quality was not suitable for aquatic animals. The reason behind the unsuitable parameters is due to some undesirable phenomena happening within the particular water bodies. As an example Pulia bajar pukur along the Mawa-Bhanga road is supposed to be unsuitable for aquaculture due to the deviation of BOD and DO level from the standard value which may be because of the presence of organic wastes - generated mainly by local people, in the water body.

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