scholarly journals Assessing groundwater stoichiometric composition and its suitability in Northwestern Bangladesh

2014 ◽  
Vol 44 (7) ◽  
pp. 1210-1218 ◽  
Author(s):  
Jahidul Islam ◽  
Abdul Hakim ◽  
Mohamed Musa Hanafi ◽  
Abdul Shukor Juraimi ◽  
Ratna Rani Sarkar ◽  
...  
Keyword(s):  
Groundwater Quality ◽  
Water Samples ◽  
Stoichiometric Composition ◽  
Major Cations ◽  
Groundwater Samples ◽  
Safe Limit ◽  
Northwestern Bangladesh

Groundwater quality analyses included pH, EC, cations (Ca2+, Mg2+, Na+, K+, Zn2+, Cu2+, Mn2+, Fe3+ and As3+), anions (CO32-, HCO3-, NO3-, SO42-, PO43- and Cl-) and TDS of northwestern Bangladesh. The samples contained Ca2+, Mg2+ and Na+ as the dominant cations and HCO3- and Cl- were the dominant anions. Ratios of major cations and anions of water samples suggest the predominance of Ca and Mg-containing minerals over Na-containing minerals. According to TDS and SAR values, all samples were classed as 'freshwater' and 'excellent' categories. The SSP of all waters was under 'excellent' and 'good' classes. All samples were within 'soft' class regarding hardness with 'suitable' RSC. Based on As3+, Zn2+, Mn2+, Fe3+, SO42-, NO3- and Cl- all groundwater samples were within the 'safe' limit for drinking but unsuitable for some industries for specific ions.

scholarly journals Natural and Anthropogenic Sources of Groundwater Salinization in Parts of Karachi, Pakistan

2019 ◽  
Vol 10 (1) ◽  
pp. 22-28
Author(s):  
Sanober Rafi ◽  
Owais Niaz ◽  
Sadaf Naseem ◽  
Umair Majeed ◽  
Humaira Naz
Keyword(s):  
Groundwater Quality ◽  
Large Scale ◽  
Anthropogenic Activities ◽  
Vital Role ◽  
Anthropogenic Sources ◽  
High Concentration ◽  
Major Cations ◽  
Groundwater Samples ◽  
Local Geology

This study is aimed to evaluate the groundwater quality of Gulshan-e-Iqbal and Liaquatabad towns inKarachi. Thirty (n=30) groundwater samples were randomly collected from different locations by electrically pumpedwells at various depths (14-91m). All the water samples were analyzed to determine their suitability for drinkingpurpose based on various physicochemical parameters. Data reveal that high concentration of TDS and hardness havedeteriorated the groundwater quality of study area. The main phenomenon responsible for groundwater pollution is theseawater intrusion due to the proximity of study area to the Arabian sea. Large scale unplanned urbanization, poorwaste management and other anthropogenic activities have also triggered the deterioration of groundwater quality.Study showed that local geology plays vital role in the distribution of major cations and anions. Data suggested thatground water of this study area is highly contaminated by seawater intrusion and considered not fit for drinkingpurpose.

scholarly journals Groundwater Quality Assessment in a Karst Coastal Region of the West Aurunci Mountains (Central Italy)

Geofluids ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-14 ◽  
Author(s):  
Giuseppe Sappa ◽  
Silvia Iacurto ◽  
Flavia Ferranti ◽  
Francesco M. De Filippi
Keyword(s):  
Groundwater Quality ◽  
Quality Assessment ◽  
Seawater Intrusion ◽  
Water Samples ◽  
Central Italy ◽  
Coastal Region ◽  
Well Water ◽  
Groundwater Quality Assessment ◽  
Hydrogeochemical Evolution ◽  
Groundwater Samples

This paper presents the results of a groundwater quality assessment carried out in the karst coastal region of the West Aurunci Mountains (Central Italy). 55 spring and 18 well water samples, collected from 2016 to 2018, were analysed to study the main processes controlling the hydrogeochemical evolution and groundwater quality properties. In the study area, groundwater samples are mostly characterized by a Ca-HCO3 facies, indicating that the groundwater hydrogeochemical evolution is mainly controlled by the carbonate mineral dissolution/precipitation. The cationic and anionic concentrations confirm that groundwater samples belong to the order of Ca2+>Mg2+>Na+>K+ and HCO3−>Cl−>SO42−, respectively. Well water samples show, over time, an increasing mineralization with respect to the spring water samples. In more detail, the enrichment of Ca2+, Na+, and Cl- in well water samples is mainly due to the dissolution of calcite, dolomite, and halite minerals and secondly to a probable ion exchange related to seawater intrusion. Seawater intrusion, probably affecting the chemical composition of well water samples, was studied using ionic ratios, graphical approaches, and specific indices, such as the BEX index. Results suggest that carbonate weathering, ion exchange, and seawater intrusion in this karst coastal region are the major factors controlling groundwater geochemistry. This study shows that groundwater quality assessment, based on hydrogeochemical investigation techniques, has been a useful tool to characterize and model carbonate aquifers in Central Italy, with the aim of achieving proper management and protection of these important water resources.

scholarly journals Hydrogeochemical Evaluation of Groundwater in Parts of Shamal, Northern Qatar

2018 ◽  
Vol 7 (2) ◽  
pp. 181 ◽  
Author(s):  
Latifa Shaheen Al-Naimi ◽  
Tochukwu Innocent Mgbeojedo
Keyword(s):  
Water Samples ◽  
Analytical Study ◽  
Saline Water ◽  
Chloride Ions ◽  
Saline Water Intrusion ◽  
Major Cations ◽  
Physico Chemical ◽  
Groundwater Samples ◽  
High Concentrations ◽  
Groundwater Genesis

Hydrogeochemical analyses of groundwater samples in Shamal area were undertaken to assess the groundwater chemistry of the area and hence determine its suitability for irrigation and other purposes. Thirteen groundwater samples were freshly collected from different functional wells in the area and were analyzed for different physico-chemical parameters.  The analyzed parameters include TDS, EC, major cations and anions. The water quality study shows that EC ranges from 7891.88-20 736.84 μS/cm, TDS values range from 5050.80-13 271.58 mg/l. Analytical study of water samples shows that sodium varies from 1316.38-3432.39 mg/l, calcium varies from 300.81-799.93 mg/l, magnesium varies from 126.66-381.81 mg/l, potassium varies from 74-181.02 mg/l, chloride values range from 2177.75-6058 mg/l, sulphate values range from 743.87-2448.79 mg/l and bicarbonate values range from 23.13-240.3 mg/l. The high concentrations of sodium and chloride ions are indicators of saline water intrusion. The analyses of the hydrogeochemical ratios were also done to highlight the groundwater genesis and origin of mineralization. The water samples were analyzed for suitability for irrigation using various classification criteria and mathematical formula. The results from analysis of KR, SAR, SSP, PS, EC and %Na all indicate that the water in the area is unfit for use in irrigation.

scholarly journals Natural and Anthropogenic Sources of Groundwater Salinization in Parts of Karachi, Pakistan

2019 ◽  
Vol 10 (1) ◽  
pp. 22-28
Author(s):  
Sanober Rafi ◽  
Owais Niaz ◽  
Sadaf Naseem ◽  
Umair Majeed ◽  
Humaira Naz
Keyword(s):  
Groundwater Quality ◽  
Large Scale ◽  
Anthropogenic Activities ◽  
Vital Role ◽  
Anthropogenic Sources ◽  
High Concentration ◽  
Major Cations ◽  
Groundwater Samples ◽  
Local Geology

This study is aimed to evaluate the groundwater quality of Gulshan-e-Iqbal and Liaquatabad towns inKarachi. Thirty (n=30) groundwater samples were randomly collected from different locations by electrically pumpedwells at various depths (14-91m). All the water samples were analyzed to determine their suitability for drinkingpurpose based on various physicochemical parameters. Data reveal that high concentration of TDS and hardness havedeteriorated the groundwater quality of study area. The main phenomenon responsible for groundwater pollution is theseawater intrusion due to the proximity of study area to the Arabian sea. Large scale unplanned urbanization, poorwaste management and other anthropogenic activities have also triggered the deterioration of groundwater quality.Study showed that local geology plays vital role in the distribution of major cations and anions. Data suggested thatground water of this study area is highly contaminated by seawater intrusion and considered not fit for drinkingpurpose.

scholarly journals Groundwater Quality Evaluation for Irrigation and Drinking Utilities Collected from Sadar Upazila of Jamalpur District, Bangladesh

2018 ◽  
pp. 1-13 ◽  
Author(s):  
H. M. Zakir ◽  
Arifa Akter ◽  
A. Rahman ◽  
Shaila Sharmin ◽  
M. Y. Arafat
Keyword(s):  
Groundwater Quality ◽  
Physicochemical Parameters ◽  
Quality Evaluation ◽  
Sodium Adsorption Ratio ◽  
Major Cation ◽  
Drinking And Irrigation ◽  
Major Cations ◽  
Groundwater Samples ◽  
Agricultural Chemistry ◽  
Class 1

The study was undertaken to evaluate groundwater quality both for drinking and irrigation usage collected from the Sadar upazila of Jamalpur district, Bangladesh. Total 20 groundwater samples were collected from the whole area and analysed for various physicochemical parameters following standard protocols at the Department of Agricultural Chemistry, Bangladesh Agricultural University, Mymensingh during March to December 2017. Concentrations of different heavy metal (Fe, Mn, Cu, Pb, Cr, Cd and Zn) in groundwater samples were measured by an atomic absorption spectrophotometer (AAS). Major cation chemistry showed their dominance in order of Ca > Mg > Na > K. Among the anions, HCO3 was the most dominating ion, which makes all groundwater unsuitable for irrigation. But considering major cations and anions, all groundwater samples were rated as suitable for drinking. In context of heavy metals, the amounts of Mn, Cd and Pb in groundwater were comparatively higher than the standard limits, which makes 14, 8 and 19 samples problematic for irrigation, and 13, 18 and 1 samples unsuitable for drinking, respectively. Electrical conductivity (EC) and sodium adsorption ratio (SAR) reflected that all groundwater samples were low to medium salinity (C1-C2) and low alkalinity (S1) hazards classes. As regards to hardness, out of 20 groundwater samples, 9 samples were classified as moderately hard, 10 were hard and only 1 sample was very hard in quality. According to residual sodium carbonate (RSC), 18 groundwater samples were found in suitable class, 1 sample was rated as marginal and the rest 1 was categorised as unsuitable class. The study concluded that HCO3, Mn, Cd and Pb were the major contaminants in groundwater of Sadar upazila of Jamalpur district, Bangladesh. Finally, the study suggested that the groundwater in this area needs to treat to minimise the amount of contaminants before using both for irrigation and drinking.

Groundwater Quality Assessment Using Geospatial Techniques and WQI in North East of Adama Town, Oromia Region, Ethiopia

2020 ◽  
Vol 3 (1) ◽  
pp. 22-36 ◽  
Author(s):  
Shankar Karuppannan ◽  
Nafyad Serre Kawo
Keyword(s):  
Groundwater Quality ◽  
Sustainable Use ◽  
World Health ◽  
Geospatial Techniques ◽  
Distribution Maps ◽  
North East ◽  
Drinking And Irrigation ◽  
Groundwater Samples ◽  
Arc Gis ◽  
Health Organization

Assessment of groundwater quality is vital for the sustainable use of the resources for domestic and agricultural purposes. In this study spatial variation of physicochemical parameters were analyzed for Northeast Adama Town. Water Quality Index (WQI) and irrigation indices were used to determine the suitability of groundwater for drinking and irrigation purposes, respectively. Further, the physical-chemical results were compared with the Ethiopian standards and the World Health Organization (WHO) standards for drinking and public health. Using GIS interpolation methods in Arc GIS 10.3.1, spatial distribution maps of pH, TDS, EC, Cl−, HCO32−, SO42−, Ca2+, Mg2+, Na+ and K+, RSC, SAR, Na% were prepared. Results indicated that except ASTU well 2, all samples are below the desirable limits of WHO. The WQI results indicated that 85% of samples and 15% of samples were in good and poor categories, respectively. Irrigation indices show that the most groundwater samples have excellent water classes, indicating that they are suitable for irrigation purposes.

scholarly journals ANALISIS KUALITAS AIR TANAH AKIBAT PENGARUH SUNGAI KLAMPOK YANG TERCEMAR LIMBAH INDUSTRI DI KECAMATAN BERGAS SEMARANG JAWA TENGAH (Analysis of Groundwater Quality Due to Effect Klampok River that was Contaminated Industrial Waste in Bergas Semarang Central Java)

2020 ◽  
Vol 26 (1) ◽  
pp. 36
Author(s):  
Sepridawati Siregar ◽  
Desi Kiswiranti
Keyword(s):  
Water Quality ◽  
Groundwater Quality ◽  
River Water ◽  
Industrial Wastewater ◽  
The Body ◽  
Water Sampling ◽  
Central Java ◽  
Groundwater Samples ◽  
Quality Testing

AbstrakSungai Klampok mengalir melalui Kecamatan Bergas dan sekelilingnya terdapat beberapa industri sehingga mengakibatkan sungai tersebut tercemar karena menjadi badan penerima air limbah. Akibat penurunan kualitas air Sungai Klampok akan berimbas pada penurunan kualitas air tanah yang digunakan oleh penduduk sekitar sungai tersebut. Penelitian ini bertujuan untuk mengetahui kualitas air tanah yang berada di sekitar Sungai Klampok sebagai akibat adanya pengaruh beban pencemaran oleh air limbah industri berdasarkan Permenkes No. 416/MENKES/PER/IX/1990 tentang persyaratan kualitas air bersih. Lokasi pengambilan sampel air sungai dibagi menjadi 3 stasiun (LK1, LK2 dan LK3) sedangkan untuk sampel airtanah dari rumah-rumah penduduk dilakukan pada 6 titik yaitu 3 titik di daerah utara dari Sungai Klampok (U1,U2, U3) dan 3 titik di daerah selatan dari Sungai Klampok (S1,S2, S3). Pengambilan sampel dilakukan pada musim kemarau. Dari hasil uji kualitas air sungai, pencemaran yang terjadi pada air sungai Klampok masuk dalam kategori tercemar ringan-sedang. Sedangkan hasil uji kualitas air tanah masih berada di bawah baku mutu yang disyaratkan oleh Permenkes No. 416/MENKES/PER/IX/1990, sehingga penurunan kualitas air sungai Klampok tidak mempengaruhi kualitas air tanah di sekitar sungai tersebut. AbstractThe Klampok River flows through the Bergas Subdistrict and there are a number of industries around it, causing the river to become polluted because it becomes the body of the recipient of wastewater. As a result of the decline in the quality of the water in the Klampok River, it will impact on the quality of groundwater used by residents around the river. This study aims to determine the quality of groundwater around the Klampok River as a result of the influence of pollution load by industrial wastewater based on Permenkes No. 416 / MENKES / PER / IX / 1990 concerning requirements for clean water quality. The location of river water sampling is divided into 3 stations (LK1, LK2, and LK3) while for groundwater samples from residential houses is carried out at 6 points, namely 3 points in the northern area of Klampok River (U1, U2, U3) and 3 points in the area south of the Klampok River (S1, S2, S3). Sampling is done in the dry season. From the results of the test of river water quality, pollution that occurs in Klampok river water is categorized as mild-moderate polluted. While the results of groundwater quality testing are still below the quality standards required by Permenkes No. 416 / MENKES / PER / IX / 1990 so that the decline in the water quality of the Klampok river does not affect the quality of groundwater around the river.

scholarly journals Entropy weight application for calculating groundwater quality index (EWQI) in groundwater quality zoning in Pleistocene aquifer in the Phu My town, Ba Ria – Vung Tau province

2020 ◽  
Vol 4 (1) ◽  
pp. 140-148
Author(s):  
Nguyen Hai Au ◽  
Tran Minh Bao ◽  
Pham Thi Tuyet Nhi ◽  
Tat Hong Minh Vy ◽  
Truong Tan Hien ◽  
...  
Keyword(s):  
Water Quality ◽  
Groundwater Quality ◽  
Quality Index ◽  
Animal Husbandry ◽  
Quality Parameters ◽  
Entropy Weight ◽  
Groundwater Quality Index ◽  
Pleistocene Aquifer ◽  
Groundwater Samples ◽  
Entropy Weight Method

Groundwater in Phu My town is exploited essentially in Pleistocene aquifer and, used for many purposes like irrigation, domestic, production and animal husbandry. In this study, Groundwater Quality Index (EWQI) is calculated with Entropy weight method to determine the suitability of groundwater quality in study area. This method demonstrates the objectivity of each parameter calculated based on the degree of variability of each value and depends on the sample data source. The groundwater samples were collected from 17 wells in dry and wet seasons in 2017 with ten water quality parameters (pH, TDS, TH, Cl-, F-, NH4+-N, NO3--N, SO42-, Pb và Fe2+) were selected for analysising. The analysis results indicate groundwater quality is divided into 4 categories in this study area. In particular, over 70% of wells are "very good" water quality in both dry and wet seasons. Only 6% of wells are " water unsuitable for drinking purpose" of the total number of mornitoring wells in the study area.

scholarly journals Hydrochemistry of Groundwater in Northeast Part of Anbar Governorate – West of Iraq

2019 ◽  
Vol 16 (1) ◽  
pp. 0088
Author(s):  
Hussein Ilaibi Zamil Al-Sudani
Keyword(s):  
Electrical Conductivity ◽  
Groundwater Quality ◽  
Total Dissolved Solids ◽  
Water Type ◽  
Hydrochemical Parameters ◽  
Dissolved Solids ◽  
Drinking Purposes ◽  
Groundwater Samples ◽  
Geological Formation ◽  
Continental Origin

A groundwater quality assessment has been carried out in northeast part of Anbar governorate in western Iraq. We analyzed hydrochemical parameters such as pH, electrical conductivity, total dissolved solids presence of ions to describe groundwater quality. The study area has the only confined aquifer within the geological formation extended in area. Values of groundwater hydrochemical parameters were ranged from (7) to (7.9) for ph, (1599) to (6800) µmhos/cm for electrical conductivity (EC) and (1048) to (4446) mg/l for total dissolved solids (TDS). The origins and types of groundwater in the area were of marine origin and MgCl2 water type while only (6) samples were of continental origin and Na2SO4 water type. Groundwater utilization indicated that it can't be used for drinking purposes, while few groundwater wells can be used for agricultural and (33) groundwater samples can be used for animal purposes. However, the nature of the soil in the area and the depth of the groundwater qualified water for agricultural uses in significant and wide ranges.

scholarly journals Assessment of the Nutrients in the Leachate and the Groundwater Quality for Drinking and Farming around the Nkolfoulou Landfill in Yaoundé, Cameroon

2019 ◽  
Vol 2019 ◽  
pp. 1-16
Author(s):  
Gilbert Feuyit ◽  
John Ngolui Lambi ◽  
Estella Njoyim-Tamungang ◽  
Samuel Laminsi
Keyword(s):  
Groundwater Quality ◽  
Major Ions ◽  
Hazard Quotient ◽  
Hazard Index ◽  
Wet Season ◽  
Cancer Risks ◽  
Groundwater Samples ◽  
Standard Set ◽  
Effluent Discharge ◽  
Pollute Groundwater

This study focuses on the assessment of the nutrients in the leachate and the groundwater quality around the Nkolfoulou landfill in Yaoundé known in French as “Centre de Traitement de Déchets (CTD).” Landfilling generates leachate that can pollute groundwater. Leachate along with groundwater samples (n=1+13) was collected in January (long dry season) and May (long wet season) 2014 and explored for various parameters including pH, temperature, EC, turbidity, TDS, TA, TSS, TH, BOD5, COD, Na+, K+, Mg2+, Ca2+, NH4+, NO3−, Cl−, F−, SO42−, PO43−, HCO3−, and colour using standard methods. In the leachate samples, values of TSS (700.2 and 130.2 mg/L), BOD5 (140 mg/L), COD (1350 and 1750 mg/L), NH4+ (82.50 and 39.51 mg/L), NO3− (159.32 and 74.82 mg/L), and Cl− (702.69 and 345.50 mg/L) exceeded the Cameroonian standards for effluent discharge. All the values of pH and some values of turbidity (4.55 and 4.50 NTU) and NH4+ (0.51 and 0.73 mg/L) in the groundwater samples violated the Cameroonian standards for drinking water. Based on the water quality index (WQI), an average of 11.53% of groundwater samples was improper for drinking in both seasons. Based on the parameters assessed, all the samples complied with the standard set for irrigation, poultry, and livestock. The hazard quotient (HQ) and the hazard index (HI) of NO3− and F− for children and adults were <1, and hence, the increased non-cancer risks due to these ions through the drinking of groundwater was low. From the statistical analysis, the Nkolfoulou landfill may not be the main source of major ions to the nearby groundwater.

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