scholarly journals Water Quality Assessment Of Dug Well Water And Its Adjoining Buriganga River Reach In The Old Dhaka Of Bangladesh

2014 ◽  
Vol 40 (2) ◽  
pp. 207-218
Author(s):  
Shovon Barua ◽  
M Saiful Islam

Thirty six dug well water samples from different houses along three transects and four Buriganga river water samples from four different Ghats (boat terminals) of the Old Dhaka of Bangladesh were collected during dry and wet periods for water quality assessment. The depth of these dug wells varies from 3.4 to 16 m with an average depth of 10 m with diurnal variations. The hydrochemical classification shows that the dug well and Buriganga river water samples are Ca-HC03 type. More than 50% dug well water samples were contaminated as concentration levels of Ca, K and Fe in both periods were high whereas over 25% Buriganga river water samples were tainted as concentration levels of Ca, Mg, Fe and Mn in dry season exceeded the drinking water quality standard limits of World Health Organization (WHO), Department of Environment (DOE) and United States Environmental Protection Agency (USEPA). If the dug well water is protected from contamination, the shallow groundwater in this part of Dhaka city should be an alternative perennial source of water especially during the dry season when water scarcity looms large Asiat. Soc. Bangladesh, Sci. 40(2): 207-218, December 2014

2013 ◽  
Vol 13 (2) ◽  
pp. 141-146 ◽  
Author(s):  
Binod Prasad Shah ◽  
Bhoj R Pant

The parameters such as temperature, PH, TSS, TDS, ammonia, phenol, cyanide, sulfide, oil and grease, chloride, DO, COD and BOD were taken to assess the water quality of Sirsiya river, central southern Nepal. Water samples were collected from upstream to downstream from the point receiving industrial effluent to Sirsiya river. It receives wastewater burden of more than 250 industries along Bara/Parsa industrial corridor. All the parameters except oil and grease were found within the generic standard. The study revealed that the physic-chemical characteristic of the river water was changing as a result of the discharge of untreated effluents from different industries. This may impact on water quality of Sirsiya river and also pose human health problems. Nepal Journal of Science and Technology Vol. 13, No. 2 (2012) 141-146 DOI: http://dx.doi.org/10.3126/njst.v13i2.7727


2020 ◽  
Vol 24 (6) ◽  
pp. 967-974
Author(s):  
C.C. Ezeh ◽  
G.A. Udourioh ◽  
J.C. Echoke ◽  
O.C. Matthews-Amune

The sixth Sustainable Development Goals (SDGs) underscores the need for clean, accessible water and good sanitation for all as an essential part of the world we live in. However, water scarcity still affects more than 30% of the world’s population. Many communities, especially in Africa, have resorted to substandard and cheaper sources of water for consumption, and hand dug well is one of them. In this study, the physicochemical, biochemical and microbiological assessment of well water samples from Gaba 1, Gaba 11 and Zuma 11 communities in Bwari Area Council, Abuja, Nigeria were carried out as a case study to determine the quality of well water. The American Public Health Association (APHA) standard analytical methods were adopted and results were compared with the World Health Organization (WHO) standards and Nigerian Standard for Drinking Water Quality (NSDWQ). From the results obtained for the physicochemical parameters, turbidity and colour did not meet up with the WHO and NSDWQ standard. Colour ranged from 330±20PtCo to 57.60±14.50PtCo as against 15PtCo by WHO and NSDWQ, turbidity ranged from 45.2±0.2NTU to 7.19±0.4NTU as against 5NTU by WHO and NSDWQ. Other physicochemical parameters were within WHO and NSDWQ limit. The bacteriological and biochemical results showed the presence of E-coli and other coliforms in all the samples. The total coliforms count for all the wells ranged from 1.55x102 to 1.775x102 CFU/ml, indicating a noncompliance to the zero count per 100ml by WHO. Well water from these communities pose a great health risk to the consumers. Keywords: Well water, Quality assessment, Physicochemical parameters, Microbiological, WHO.


2019 ◽  
Vol 33 (1) ◽  
pp. 23-30
Author(s):  
Pradeep Kumar Shah ◽  
Shashi Bhushan Chaturwedi

 Water pollution, one of the serious environmental issues of the world, results from contaminants being introduced into the natural environment. This study was conducted in the Microbiology laboratory, DAV College, Dhobighat, Lalitpur, Nepal from January to May 2018 with aims to assess the physicochemical and microbiological status of river water of Kathmandu valley. All together 60 water samples were collected, 20 water samples each from different places of Bagmati river, Bishnumati river and river junction (Teku Dovan). The physicochemical parameters including pH, ammonia and iron, hardness and alkalinity were analyzed by standard methods and the microbiological parameters such as total mesophilic count and total coliform count were analyzed by pour plate technique. Among all 60 water samples tested, the temperature (12.8°C), BOD value (3.11 mg/l), iron value (0.87 mg/l) and turbidity (102.2NTU) were found to be highest in Bagmati river water samples whereas the value of TSS (755.2 mg/l), TDS (748.4 mg/l), copper (0.01 mg/l) and COD (911.5 PPM) were found to be highest in water of Bishnumati river. The heavy meals Manganese (0.29 mg/l) and Nickel (0.01 mg/l) were detected only in Bishnumati river water samples. The river junction water samples showed the exceeded value of DO (9.56 mg/l) and chloride (0.12 mg/l). All the 60 samples showed total mesophilic counts more than 300 cfu/ml and the average number of total mesophilic counts were found to be 5.21×106 cfu/ml. The average number of total coliform counts were found to be 2.1×105 cfu/ml in the water samples of Bagmati river, Bishnumati river and river junction. Most of the tested parameter of the samples had more than the standard value of water quality indicating the deterioration of river water quality and thus may affect the aquatic as well as human and animal lives.


2018 ◽  
Vol 7 (4.35) ◽  
pp. 639
Author(s):  
HA Mohiyaden ◽  
LM Sidek ◽  
G Hayder ◽  
MN Noh

The quality of Klang river water is deteriorating dramatically since it is in urban places every day and become one of the major problems.  Therefore, the Malaysian government had initiated one river cleaning project named River of Life (ROL) project. This project is for rehabilitating and restoring the Klang river. A series of river water treatment plant (RWTP)s have been operated in Klang river catchment since 2014. Six RWTPs station has been monitored up to eight stations until presents. Eight parameters consisting of physio-chemical types and biological types have been recorded. RWTP effluent discharges are targeted to achieve Malaysia Interim National Water Quality Standard (INWQS) under Class II B. Since previous RWTP performance only emphasized on local river pollutants and certain conditions, this paper will investigate the effectiveness of full-scale RWTP unit process for river condition. Water quality assessment are involved which are consist of effluent water quality monitoring and pollutant removal efficiency. Most of the major pollutants able to be reduced by more than 50% reduction. Although BOD and AN still not able to achieve standard range gazetted by INWQS Class IIB, there is an improvement of river water quality at Klang River by using IFAS technology adopted in the RWTP system.


2013 ◽  
Vol 20 (8) ◽  
pp. 5630-5644 ◽  
Author(s):  
Adamu Mustapha ◽  
Ahmad Zaharin Aris ◽  
Hafizan Juahir ◽  
Mohammad Firuz Ramli ◽  
Nura Umar Kura

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