scholarly journals Groundwater quality assessment of domestic shallow dug wells in parts of Tanah Merah district, Malaysia

2021 ◽  
Vol 6 (2) ◽  
pp. 62-67
Author(s):  
Kishan Raj Pillai Mathialagan ◽  
Hafzan Eva Mansor ◽  
Ainaa Mardhiya ◽  
Zakiyah Ainul Kamal ◽  
Mohammad Muqtada Ali Khan
Keyword(s):  
Groundwater Quality ◽  
Quality Assessment ◽  
Major Ions ◽  
Groundwater Resources ◽  
Colorimetric Method ◽  
Gravimetric Method ◽  
Ionic Species ◽  
Ion Concentration ◽  
Major Ion ◽  
Dug Wells

Groundwater resources have become an important fresh water supply due to its increasing demandsfor agricultural, drinking and industrial uses. Groundwater is often contaminated by the process ofindustrial development and suburbanization that has gradually advanced over time without anyconcern for environmental consequences. The objective of this study is to analyse the groundwaterquality of shallow dug wells in parts of Tanah Merah district by conducting quality assessment ofgroundwater using WHO and MHO guide lines. Groundwater samples were collected from dugwells uniformly spread out across the study area to investigate the major ion chemistry of thegroundwater as well as physical parameter. The major ion being investigated are sodium,magnesium, calcium, potassium, sulphate, nitrate, chloride and bicarbonates. Various methods havebeen were employed to determine the major ions concentration in the samples such as atomicabsorption spectrophotometer for cations, gravimetric method for sulphates, titration method forchloride and bicarbonates and colorimetric method for nitrate ion. From the analysed data’s, mostwells are safe for drinking purpose although quite a small amount of ion concentration has surpassedthe permissible limit set by WHO and MOH. The graphical presentation of major ion chemistryaids in identifying two types of groundwater. Ionic species such as Na-K-HCO3 and mixed typewaters are likely to occur in the groundwater system. The analysed major ions concentrationsindicates that majority of the shallow dug wells reported adequate or lower values compared topermissible limit which are safe and can be utilized for various domestic purposes includingdrinking. Several recommendations has been suggested to proliferate the groundwater quality suchas strictly monitoring and supervising the dissipation of waste such as pesticides, industrial effluentand domestic sewage into the aquifer.

scholarly journals GROUNDWATER QUALITY ASSESSMENT FOR IRRIGATION PURPOSES AT THE WESTERN PORTION OF THE RIVER NILE– MINIA DISTRICT- EGYPT

2018 ◽  
Vol 6 (4) ◽  
pp. 325-339
Author(s):  
Mamdouh Salama Morsi
Keyword(s):  
Chemical Analysis ◽  
Groundwater Quality ◽  
Quality Assessment ◽  
Groundwater Resources ◽  
Ion Concentration ◽  
River Nile ◽  
Groundwater Quality Assessment ◽  
Quaternary Aquifer ◽  
Groundwater Samples ◽  
Western Portion

The main goal of this research is assessment the groundwater resources for irrigation purposes at the western portion of the River Nile –Minia district- Egypt. The research depend on representation and calculation the resulted of chemical analysis of 96 groundwater samples collected from 96 pumping well During autumns 2011 from quaternary aquifer. the resulted reviled that; 25% of groundwater samples within the range of none restriction on use and the rest are margin according TDS content, most of samples are good for irrigation in all soils as they located in classes (C2-S1) and (C3-S1) and suitable for irrigation all crops as belong to SAR values and RSC hazard. But it restricted by boron ion concentration.

Major ion chemistry and water quality assessment of groundwater in the Shigaze urban area, Qinghai-Tibetan Plateau, China

2019 ◽  
Vol 20 (1) ◽  
pp. 335-347 ◽  
Author(s):  
Yingzhi Li ◽  
Jiutan Liu ◽  
Zongjun Gao ◽  
Min Wang ◽  
Leqi Yu
Keyword(s):  
Water Quality ◽  
Tibetan Plateau ◽  
Quality Assessment ◽  
Major Ions ◽  
Water Quality Assessment ◽  
Ion Chemistry ◽  
Major Ion Chemistry ◽  
Major Ion ◽  
The Mean ◽  
Over Time

Abstract Shigaze city is situated in the southwestern Tibetan Plateau and is the second largest city in the Tibet Autonomous Region. Groundwater is the major source of domestic and drinking water for urban inhabitants. In this study, the major ion chemistry and a water quality assessment of groundwater were studied using geochemical methods and fuzzy comprehensive assessment. Groundwater was classified as slightly alkaline soft and hard freshwater, and the influence of anthropogenic activities on groundwater was relatively weak. The dominant cations and anions were Ca2+ and Mg2+ and HCO3− and SO42−, respectively. Overall, the mean concentrations of major ions in groundwater increase gradually over time, except for NO3−; however, the mean value of pH decreases over time. Most groundwater samples belong to the type of HCO3-Ca, and the groundwater has a trend of evolution from HCO3-Ca to the mixed type. Rock weathering was the main hydrogeochemical process controlling groundwater hydrochemistry, and the dissolution of carbonate and silicate minerals were the primary contributors to the formation of the major ion chemistry of groundwater. Major ions of groundwater in the urban area of Shigaze are below the standard limits, and the groundwater is excellent for drinking according to the fuzzy comprehensive assessment.

Application of TOPSIS Model Based on Vague Set Entropy in the Evaluation of Groundwater Quality

2013 ◽  
Vol 712-715 ◽  
pp. 452-456 ◽  
Author(s):  
Wen Zhong Yu ◽  
De Shan Tang
Keyword(s):  
Groundwater Quality ◽  
Quality Assessment ◽  
Quality Evaluation ◽  
Groundwater Resources ◽  
Sustainable Use ◽  
Evaluation Process ◽  
Irrigation District ◽  
Vague Set ◽  
Groundwater Quality Assessment ◽  
Model Based

Groundwater quality assessment had important guiding significance on sustainable use of groundwater resources. In order to avoid the subjective judgment on the weight of each index, this article used the Vague set entropy theory to determine the weight of each index, combined with the TOPSIS method, it established the TOPSIS groundwater quality evaluation model based on Vague set entroy. Finally, this model was applied to groundwater quality evaluation in Tailan River Irrigation District, the evaluation results matched with the actual situation. The results showed that the evaluation process of this model was reasonable and scientific, it provided a new idea for groundwater quality assessment.

scholarly journals Effect of Modified Septic Tank on Groundwater Quality around Federal University of Agriculture, Abeokuta, South-west Nigeria

2020 ◽  
pp. 73-89
Author(s):  
Kofoworola Olatunde ◽  
Modupe Sarumi ◽  
Sadiq Abdulsalaam ◽  
Babatunde Bada ◽  
Funmilola Oyebanji
Keyword(s):  
Groundwater Quality ◽  
Major Ions ◽  
Principal Component ◽  
Septic Tank ◽  
E Coli ◽  
Septic Tanks ◽  
Management Measures ◽  
Standard Procedures ◽  
Groundwater Samples ◽  
Dug Wells

Groundwater forms a very important part of the water supply chain and its quality can be affected by improperly constructed septic tanks used by homeowners in peri-urban locations such as Abeokuta in recent times. Sixty groundwater samples collected from hand-dug wells ≤15m from septic tanks were analysed for physicochemical and bacteriological parameters using standard procedures. Results were integrated with multivariate and hydrogeochemical analyses to assess the effect improperly built septic tanks have on groundwater quality around the Federal University of Agriculture, Abeokuta. The range of values for the measured parameters include: pH (6.26 – 8.66), EC (83 – 1035 μS cm-1), TDS (42 – 621 mg L-1), Mg2+ (2 – 60 mg L-1), NO3- (5.09 – 17 mg L-1), Fe (-.04 – 5.32 mg L-1), BOD (0.1 – 13.2) and E. Coli (ND – 41×10 cfu mL-1). The abundance of major ions are in the order Ca2+˃Mg2+˃K+˃ Na+ and Cl- ˃SO42- >HCO3- >NO3- ˃PO42-. The piper trilinear plot shows that the dominant hydrochemical facies in the study area is the Ca2+–Cl- type. A correlation analysis and a principal component analysis both reflect intrusions from biological wastes such as surrounding septic tanks or municipal waste disposals as well as dissolutions from basal rocks. The possibility of infiltration from sewage into groundwater is confirmed by the number of samples with high BOD, NO3-, and E. coli concentrations. Contamination of groundwater with sewage exposes the populace to acute excreta-related illness. This therefore calls for stringent monitoring and management measures to be put in place by relevant regulatory authorities to safeguard the human health and environment within the study area.

Organic micropollutants in the assessment of groundwater quality

2007 ◽  
Vol 7 (3) ◽  
pp. 155-162 ◽  
Author(s):  
I. Ivancev-Tumbas ◽  
E. Maljevic ◽  
Z. Tamas ◽  
E. Karlovic ◽  
B. Dalmacija
Keyword(s):  
Groundwater Quality ◽  
Quality Assessment ◽  
Groundwater Resources ◽  
Developed Countries ◽  
Danube River ◽  
Raw Water ◽  
Organic Micropollutants ◽  
Local Conditions ◽  
Safety Of Drinking Water

The better the quality of raw water resources, the higher the safety of drinking water supply. In the Danube river basin more than 60% of the population depends on groundwater sources. Organic micropollutants play an important role in quality assessment since they might cause different toxic effects in humans. There are two groups of organic micropollutants: regulated and non-regulated. In recent years, a lot of scientific effort was made to quantify their risks. Their occurrence is site specific and depends on social and economic factors, industry, population density, environmental conditions etc. That is why legislation intervention is required both at national and international level. This paper presents a literature review on the presence and fate of organic micropollutants that have been recently investigated in numerous projects worldwide. Special attention is paid to their mobility and risk for groundwater resources. Data on Serbian groundwater quality is presented for the period 2004–2005. In comparison with knowledge in developed countries, one can conclude that there is a general lack of data. More data about organic micropollutants presence is required, as well as identification of the pressures which lead to quality deterioration. Future quality assessment should be based on evaluated risks made considering both experience from developed countries and local conditions.

Major ion chemistry and quality assessment of the groundwater resources of Nanded tehsil, a part of southeast Deccan Volcanic Province, Maharashtra, India

2016 ◽  
Vol 75 (21) ◽  
Author(s):  
Vasant Madhav Wagh ◽  
Dipak Baburao Panaskar ◽  
Abhay Mukund Varade ◽  
Shrikant Vitthal Mukate ◽  
Satyajit Kundlik Gaikwad ◽  
...  
Keyword(s):  
Quality Assessment ◽  
Groundwater Resources ◽  
Ion Chemistry ◽  
Major Ion Chemistry ◽  
Deccan Volcanic Province ◽  
Volcanic Province ◽  
Major Ion

scholarly journals Hydrochemical Studies of Ground Water in Parts of Lagos, Southwestern Nigeria

2013 ◽  
Vol 6 (1) ◽  
pp. 27-42 ◽  
Author(s):  
Isaiah S. Akoteyon
Keyword(s):  
Groundwater Quality ◽  
Sea Water ◽  
Major Ions ◽  
Standard Procedure ◽  
Industrial Effluent ◽  
Mean Value ◽  
Groundwater Abstraction ◽  
Southwestern Nigeria ◽  
Sources Of Pollution ◽  
Dug Wells

Abstract Groundwater samples were randomly collected from forty-five protected dug wells and thirteen boreholes in parts of Lagos, Southwestern Nigeria. Samples were analysed for pH, electrical conductivity and total dissolved solids in situ. Cations (calcium, magnesium, potassium and sodium) and anions (chloride, bicarbonate, sulphate and carbonates) were determined in the laboratory after standard procedure. The study is aimed at examining the extent of groundwater pollution and its possible sources using multivariate and graphical techniques. Rockware software was used to characterize groundwater composition while the sample locations were mapped with ArcMap 9.3 software. The results show high mean value in the groundwater characteristics of the protected dug wells compared to the boreholes. A significant relationship exists among EC/ TDS and major ions indicating the influence of sea water on the groundwater quality. The dominant cations and anions are in the order of: Ca2+ > Mg2+ >Na+ > K+; and Cl- >HCO3 - > SO42+ respectively. Factor analysis extracted two major sources of pollution (sea water and industrial) responsible for the processes controlling groundwater quality in the area. The Piper plot revealed seven distinct water types including Ca-HCO3, Ca-Cl, Mg-HCO3, Na-SO4, Mg-Cl, Na-HCO3 and Na-Cl representing 44.8%, 25%, 15.5%, 5.2%, 3.4%, 3.4%, and 1.7% respectively. The paper recommended monitoring of groundwater abstraction and treatment of industrial effluent before being released into the subsurface to prevent salinization and quality deterioration in the study area.

scholarly journals Assessment of sanitation and water supply system based on longitudinal IFLS data

2017 ◽  
Author(s):  
Dasapta Erwin Irawan
Keyword(s):  
Open Access ◽  
Water Supply ◽  
Groundwater Quality ◽  
Major Ions ◽  
Open Data ◽  
Routine Data ◽  
Data Repository ◽  
System Quality ◽  
E Coli ◽  
Dug Wells

Abstrak:Kesehatan masyarakat belum banyak dihubungkan dengan properti fisik lingkungan. Penelitian ini bertujuan untuk mencari hubungan antara data kesehatan masyarakat dengan data fisik infrastruktur dan kualitas sumber air dari IFLS dan data kualitas air tanah sebagai salah satu sumber air terbesar yang digunakan oleh masyrakat Indonesia, khususnya Bandung.Kami mengambil data kualitas air di sebanyak 70 titik sumur warga dengan kedalaman bervariasi antara 6 hingga 20 m. Konsentrasi tujuh ion utama dianalisis dengan tambahan pengukuran temperatur, TDS, dan pH di lapangan menggunakan peralatan jinjing yang ringan. Khusus di kawasan bantaran Sungai Cikapundung, kami melakukan identifikasi kandungan bakteriologi, dalam hal ini bakteri E coli. Kemudian di beberapa lokasi, kami dibantu mahasiswa S1, juga melakukan pengukuran berulang (time series) sebanyak empat kali dalam sehari, untuk melihat fluktuasi parameter temperatur, TDS, dan pH pada air sungai.Hasilnya cukup menarik, saat data IFLS dan data penderita diare di Puskesmas, menunjukkan adanya korelasi positif antara kualitas infrastruktur sumber air dengan jumlah penderita diare. Hal ini didukung dengan peningkatan kandungan E coli di air S. CIkapundung sebesar hampir 2 kali lipat antara kawasan hulu dengan kawasan hilir. Kondisi ini berimbas kepada air tanah, karena pada daerah selatan (dari Viaduct ke Dayeuhkolot), air sungai meresap ke dalam akuifer. Dari sini, kami berpendapat bahwa akan terjadi interaksi yang sangat intensif antara air sumur warga di sekitar sungai (khususnya yang menggunakan pompa) dengan air sungai.Untuk meningkatkan kontribusi kepada ITB dan Kota Bandung pada umumnya, kami mengusulkan adanya portal data hidrologi yang dikelola bersama antara Pemkot Bandung dan ITB agar data didapatkan secara rutin dan dapat dianalisis kapanpun. Hal ini kami usulkan karena seringkali analisis tidak dapat dilakukan secara instan, karena perlu diawali dengan tahapan mencari data.Selain itu, riset ini juga menambah contoh riset terbuka kepada para dosen/peneliti dengan cara: membuat repositori data dan repositori riset yang terbuka (selain Simlitabmas yang masih tertutup), membuat artikel blog yang diperbarui mengikuti perkembangan riset, serta membudayakan konsep open access, yang mana seluruh luaran riset ini bebas untuk dibaca, digunakan/dianalisis ulang, dan dipadukan dengan hasil yang lain (free to read, reuse, remix), untuk berbagai keperluan pembaca.Abstract:Public health has not been connected closely to physical environment. This research looks for the connections between public health using sum of diarrhoea case in Bandung area (using kecamatan puskesmas data) with water quality, water source quality (especially groundwater quality) and sanitation system quality. As we know, groundwater is the main water supply in Indonesia.We took 70 samples from community and private dug wells with depth varied from six to 20 m underground. We measured field parameters using portable equipments: groundwater depth, temperature, TDS, pH, to support lab analysis on seven major ions. In the Cikapundung riverbank, the team had sampled bacteriology content, E coli. Next, at some points, we also brought some undergraduate and master students to measure temperature, TDS, and pH readings in the river water, four times a day for 5 months to see the fluctuation and daily, weekly, and monthly variations.The initial results is interesting, when IFLS data matches with data from puskesmas in the sum of diarrhoea case. We also note a possitive correlation between water supply infrastructure with the diarrhoea case. The concentration of E coli in the river stream increases nearly two times between upstream and downstream. This condition contributes to the groundwater quality given the close connection between both unconfined groundwater and surface water, especially in the southern part with losing stream type. We could expect an intensive mixing between dug wells in the riverbank with river water.To extend our contribution to ITB and Bandung, we also initiate a open data portal for hydrological records that can be managed both my ITB and Bandung government to provide a routine data collecting. We convince this step could solve data sharing problem between governmental unit with data users. We also need to showcase a model of open research implementation among researchers by providing open data repository, project blog, aside to only use close-system Simlitabmas portal. The blog project is the one that take the most of our interest with the increasing number of readers. This research shows another open access way to run a research program, where all of the research outputs are free to read, reuse, and remix by the readers.

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