by Dipu Sukumaran, Lotus Rani A. K. and Harikumar P.S.
Original Research
Groundwater is an important entity of our hydrological system. The present study focus on the drinking water quality status of selected dug wells of a coastal area in Kerala, India for pre monsoon and monsoon season. Of the samples collected, about 80% of the water samples are contaminated with Escherichia coli in pre monsoon and 100% percentage in monsoon. Iron concentrations in 65% of the water samples were found to be higher than the drinking water standards of Bureau of Indian Standards (BIS). The present study concludes that even though water comes in “good water” index, the well water is unsuitable for drinking due to its high iron and coliform contamination.
American Journal of Water Resources. 2018, 6(4), 181-185. DOI: 10.12691/ajwr-6-4-6
Pub. Date: November 01, 2018
9639 Views1900 Downloads1 Likes
by Tamjid -Us-Sakib, Sharmin Sultana, Aninda Nafis Ahmed, Md. Anwar Arfien Khan and Madhu Sudan Saha
Original Research
This study was performed to know the quality of coal ash pond water of Barapukuria Thermal Power Plant (BTPP) and its impact on the surrounding surface and ground water systems. Three different types of water samples i.e., directly from coal ash pond, nearby surface water and groundwater system were investigated. Physico-chemical parameters [pH, EC, TDS, Turbidity, DO and BOD] and different heavy metals [Pb, Cr, Fe, Zn and Cu] of water samples were determined. The concentrations of heavy metals were found very high in the investigated area. The contamination level was measured through different water pollution indices such as heavy metal pollution index (HPI), heavy metal evaluation index (HEI), and degree of contamination (Cd). According to water quality standards of Bangladesh standard and International standards it was indicated that this water was highly polluted with regards to Pb, Cr, Fe, Zn and Cu. From this study it can be suggested that if necessary steps should not be taken in near future the heavy metal contamination of coal ash pond will be a serious threat to human and environment. This research will enhance the public awareness about heavy metal contamination.
American Journal of Water Resources. 2018, 6(4), 176-180. DOI: 10.12691/ajwr-6-4-5
Pub. Date: November 01, 2018
7373 Views1155 Downloads1 Likes
by MVONDO Valentin, KEMGANG DONGMO TCHOUTA, FAVREAU Guillaume and NGOUNOU NGATCHA Benjamin
Original Research
Depressed aquifers highlighted on the Cameroon border of Lake Chad have not yet been closely studied. The purpose of this work is to improve the knowledge of these depressions by combining a dataset derived from geology and hydrochemistry. To do this, a field campaign was conducted. During this campaign, static levels and physicochemical parameters (pH, temperature, electrical conductivity and turbidity) were measured. Groundwater sampling was also carried out. This study shows that piezometric levels decrease from the edge to the central part of the depression, regardless of the flow line. Ph vary from 7.09 to 7.80, temperatures from 21.70°C to 24.50°C and conductivities from 181.66 μs/cm to 3446.66 μs/cm with the highest values in the depression; the mineralization is done within the aquifer. Two water facies: calcic/magnesic bicarbonate facies (87.5%) and sodic/potassic bicarbonate facies (12.5%) were noted. This facies change is due to substitutions within the clay formations and dissolution of evaporitic minerals. The different litho-stratigraphic logs show a heterogeneous aquifer of which the formations could not be correlated.
American Journal of Water Resources. 2018, 6(4), 169-175. DOI: 10.12691/ajwr-6-4-4
Pub. Date: October 26, 2018
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by Azhar Husain, Mohammed Sharif and Mohammed Lateef Ahmad
Original Research
Flooding in Delhi Segment of River Yamuna has a devastating effect on the life of the inhabitants, particularly those residing close to the banks. The River Yamuna experienced floods 33 times during the last century, often endangering the life of people as well as the important infrastructural facilities that exist along the banks of the river. The present paper describes the development and application of a hydrodynamic model based on HEC-RAS - modelling system developed by the Hydrologic Engineering Centre at United States Army Corps of Engineers - for the simulation of floods in the Delhi segment of River Yamuna. The HEC-RAS model was first calibrated and validated and then applied for the simulation of historical floods of 2010 and 2013. With the HEC-RAS model, the vulnerability assessment of different bridges and barrages in the Delhi segment has been carried out. It can be concluded that the results presented herein could provide valuable aid to policy makers in formulating mitigation strategies to counteract the adverse impacts of flooding in the Yamuna River basin.
American Journal of Water Resources. 2018, 6(4), 162-168. DOI: 10.12691/ajwr-6-4-3
Pub. Date: October 25, 2018
9187 Views1257 Downloads
by Jawed Ahmad, Azhar Husain, Bushra Hasan, Rubia Gaur, Praveen Kumar, Anwar Ali Khan and Abid Ali Khan
Original Research
The present study investigates the characteristics of the different organic waste obtained from dumping sites of the Campus of the university and Okhla region of Delhi. Three types of wastes; kitchen waste (KW), Food vegetable waste (FVW) and Garden waste (GW) were used for batch scale anaerobic digestion study. The prepared slurry was analyzed for pH, Alkalinity, Chemical oxygen demand (COD), Total solids (TS), and Volatile solids (VS). The results shows the initial characteristics ranges; pH 6.70 to 7.70; COD 1900 to 3000 mg/L, TS- 9.8 to 15.23 %, VS 79.2 to 85.70 %. The maximum COD = 86% and VS =44.32 % was removed with FVW and KW, respectively. The maximum biogas 3500 mL was observed when FVW was digested with Cow dung.
American Journal of Water Resources. 2018, 6(4), 156-161. DOI: 10.12691/ajwr-6-4-2
Pub. Date: September 19, 2018
11417 Views1640 Downloads
by Pratap Kumar Panda, Rahas Bihari Panda and Prasant Kumar Dash
Original Research
The river Salandi, originated from Meghasani hill of Similipal reserve forest, passes through Hadagada dam, Bidyadharpur barrage, Agarpara town, Bhadrak municipality, Satbhauni, Dhusuri and finally meets the river Baitarani at Tinitaraf ghat before merging with the Bay of Bengal at Dhamara. The river, during its course of flow, receives forest decayed run off, mining wastes, agricultural effluents, industrial wastes, urban wastes, biomedical wastes and after all domestic wastes. In this work, the water samples collected from nine different sampling stations during summer, rainy, post-rainy and winter seasons were analysed by using standard procedures for sixteen physico-chemical parameters and experimental data were operated to calculate mean and standard deviation (SD) and finally Pearson’s correlation coefficients were calculated for twelve important parameters by applying SPSS-16 software. The analysis result shows that river water is polluted physically, chemically and bacteriologically with respect to iron, hexavalent chromium, chloride and bacteria, though the gravity of pollution was more during rainy and post-rainy seasons. The calculated Pearson’s correlation coefficients show that there exist positive and negative correlation among certain parameters.
American Journal of Water Resources. 2018, 6(4), 146-155. DOI: 10.12691/ajwr-6-4-1
Pub. Date: September 17, 2018
16961 Views2929 Downloads