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Content Provider | SpringerLink |
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Author | Prasanna, M. V. Chidambaram, S. Senthil Kumar, G. Ramanathan, AL Nainwal, H. C. |
Copyright Year | 2010 |
Abstract | In the light of progressive depletion of groundwater reservoir and water quality deterioration of the Neyveli basin, an investigation on dissolved major constituents in 25 groundwater samples was performed. The main objective was detection of processes for the geochemical assessment throughout the area. Neyveli aquifer is intensively inhabited during the last decenniums, leading to expansion of the residential and agricultural area. Besides semi-aridity, rapid social and economic development stimulates greater demand for water, which is gradually fulfilled by groundwater extraction. Groundwaters of the study area are characterized by the dominance of Na + K over Ca + Mg. HCO$_{3}$ was found to be the dominant anion followed by Cl and SO$_{4}$. High positive correlation was obtained among the following ions: Ca–Mg, Cl–Ca,Mg, Na–K, HCO$_{3}$–H$_{4}$SiO$_{4}$, and F–K. The hydrochemical types in the area can be divided into two major groups: the first group includes mixed Ca–Mg–Cl and Ca–Cl types. The second group comprises mixed Ca–Na–HCO$_{3}$ and Ca–HCO$_{3}$ types. Most of the groundwater samples are within the permissible limit of WHO standard. Interpretation of data suggests that weathering, ion exchange reactions, and evaporation to some extent are the dominant factors that determine the major ionic composition in the study area.في ضوء نضوب التدريجي لخزان المياه الجوفية وتدهور نوعية المياه في حوض Neyveli ، تحقيقا بشأن حل المكونات الرئيسية في عينات المياه الجوفية 25 قد أنجز. وكان الهدف الرئيسي من عمليات الكشف عن تقييم الجيوكيميائية في جميع أنحاء المنطقة. ويسكنها بشكل مكثف Neyveli طبقة المياه الجوفية خلال decenniums الماضي ، مما أدى إلى التوسع في المنطقة السكنية والزراعية. وبالاضافة الى الجفاف نصف النهائي ، سريع التنمية الاجتماعية والاقتصادية ويحفز زيادة الطلب على المياه ، التي تؤدى تدريجيا عن طريق استخراج المياه الجوفية. وتتميز المياه الجوفية في منطقة الدراسة عن طريق هيمنة نا + ك + الكالسيوم على المغنيسيوم. تم العثور على HCO3 أن تكون مهيمنة أنيون يليه الكلورين وSO4. تم الحصول على العلاقة الإيجابية بين السامية الأيونات التالية : الكالسيوم ، الماغنسيوم ، الكالسيوم ، الكلور ، الماغنسيوم ، الصوديوم ، البوتاسيوم ، HCO3 - H4SiO4 وكيه. ويمكن تقسيم أنواع الهيدروكيميائية في المنطقة إلى مجموعتين رئيسيتين : المجموعة الأولى تضم مختلطة الكالسيوم ، الماغنسيوم ، الكالسيوم وأنواع الكلور ، كلور. المجموعة الثانية تضم أنواع مختلطة الكالسيوم ، الصوديوم والكالسيوم ، HCO3 HCO3. معظم العينات الجوفية تقع ضمن الحد المسموح به من منظمة الصحة العالمية القياسية. تفسير البيانات تشير إلى أن العوامل الجوية التبادل الأيوني ، وردود الفعل والتبخر الى حد ما هي العوامل المسيطرة التي تحدد تركيبة الأيونية الرئيسية في منطقة الدراسة. |
Starting Page | 319 |
Ending Page | 330 |
Page Count | 12 |
File Format | |
ISSN | 18667511 |
Journal | Arabian Journal of Geosciences |
Volume Number | 4 |
Issue Number | 1-2 |
e-ISSN | 18667538 |
Language | Arabic |
Publisher | Springer-Verlag |
Publisher Date | 2010-09-10 |
Publisher Place | Berlin, Heidelberg |
Access Restriction | One Nation One Subscription (ONOS) |
Subject Keyword | Hydrogeochemistry Weathering Ion exchange Saturation index Neyveli basin Earth Sciences |
Content Type | Text |
Resource Type | Article |
Subject | Earth and Planetary Sciences Environmental Science |
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