scholarly journals Level of Correlation in the Depth of Groundwater Wells: Iron and Chloride

2019 ◽  
Author(s):  
Ronny ◽  
Erlani ◽  
Jasman

Groundwater quality in each region is not always the same, this influenced by climate factors, lithology, time, human activities. The purpose of the research that conducted was to see the relationship among the depth of groundwater wells in two different study locations on the concentration of iron (Fe) and Chloride (Cl) levels in each sample. This research located in Mattiro Baji Village, Pangkep Regency, South Sulawesi and Sindulang Satu Urban Village, Manado City, North Sulawesi. The research sample amounted to 18 in the form of bottles of groundwater well samples which evenly taken at the study site. TDS Meter is used to quantity iron (Fe) concentration, and Chlorine Meter is chloride (Cl) levels in samples with mg/L. The outcomes of the study showed that there was no noteworthy relationship between the depth of groundwater wells and the levels of concentration of iron (Fe) and Chloride (Cl). Conditions that are still not contaminated by changes caused by the environment, industrial waste and seawater intrusion.

2019 ◽  
Author(s):  
Ronny ◽  
Erlani Erlani ◽  
Jasman Jasman

Groundwater quality in each region is not always the same, this influenced by climate factors, lithology, time, human activities. The purpose of the research that conducted was to see the relationship among the depth of groundwater wells in two different study locations on the concentration of iron (Fe) and Chloride (Cl) levels in each sample. This research located in Mattiro Baji Village, Pangkep Regency, South Sulawesi and Sindulang Satu Urban Village, Manado City, North Sulawesi. The research sample amounted to 18 in the form of bottles of groundwater well samples which evenly taken at the study site. TDS Meter is used to quantity iron (Fe) concentration, and Chlorine Meter is chloride (Cl) levels in samples with mg/L. The outcomes of the study showed that there was no noteworthy relationship between the depth of groundwater wells and the levels of concentration of iron (Fe) and Chloride (Cl). Conditions that are still not contaminated by changes caused by the environment, industrial waste and seawater intrusion.


2019 ◽  
Vol 69 (2) ◽  
pp. 184-196 ◽  
Author(s):  
Henghua Zhu ◽  
Jianwei Zhou ◽  
Tingting Song ◽  
Haibo Feng ◽  
Zhizheng Liu ◽  
...  

Abstract Groundwater plays an important role in water supply and economic development for Yantai city, China. However, the groundwater quality has degraded due to the increase and expansion of agricultural and industrial development. It is urgent to acquire groundwater characteristics and distinguish impacts of natural factors and anthropogenic activities on the groundwater quality. Forty-six groundwater samples collected from different wells showed a great variation of chemical components across the study area. Most wells with higher total dissolved solids, total hardness, K+, Na+, Ca2+, Mg2+, Cl− and SO42− concentrations were located relatively close to the coastal zone. The factor analysis (FA) and hierarchical cluster analysis results displayed that seawater intrusion was the primary mechanism controlling the groundwater quality in the coastal areas. A three-factor model was proposed based on the FA and explained over 85% of the total groundwater quality variation: Factor 1, the seawater intrusion; Factor 2, the water–rock interaction and Factor 3 (NO3−), the human activities. Furthermore, the geographical maps of the factor scores clearly described the spatial distributions of wells affected by natural processes or human activities. The study indicated that both natural processes and human activities are the major factors affecting the chemical compositions of groundwater.


2019 ◽  
Vol 98 ◽  
pp. 01034 ◽  
Author(s):  
Mingjun Liu ◽  
Changlai Xiao ◽  
Xiujuan Liang

In this study, a hydrochemical investigation was conducted in Shuangliao city to identify the hydrochemical characteristics and the quality of groundwater using descriptive statistics and correlation matrices. And on that basis, combined with Analytic hierarchy process (AHP), an improved two-level fuzzy comprehensive evaluation method is used to evaluate the groundwater quality. The results indicate that the major cations and anions in groundwater are Ca2+ and HCO3-, respectively. The chemical types are mainly HCO3—Ca type water, some areas are complicated due to the influence of human activities. The evaluation results show that the water quality in the area is mostly III type water, and the groundwater quality in some areas is IV or V water due to the influence of primary geological conditions or human activities. The groundwater quality in the East Liaohe River Valley and Shuangliao urban area is relatively poor, and in the northwest part which is the saline alkali soil area is also relatively poor.


Water ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 1952
Author(s):  
Subrata Halder ◽  
Lingaraj Dhal ◽  
Madan K. Jha

Providing sustainable water supply for domestic needs and irrigated agriculture is one of the most significant challenges for the current century. This challenge is more daunting in coastal regions. Groundwater plays a pivotal role in addressing this challenge and hence, it is under growing stress in several parts of the world. To address this challenge, a proper understanding of groundwater characteristics in an area is essential. In this study, spatio-temporal analyses of pre-monsoon and post-monsoon groundwater-levels of two coastal aquifer systems (upper leaky confined and underlying confined) were carried out in Purba Medinipur District, West Bengal, India. Trend analysis of seasonal groundwater-levels of the two aquifers systems was also performed using Mann-Kendall test, Linear Regression test, and Innovative Trend test. Finally, the status of seawater intrusion in the two aquifers was evaluated using available groundwater-quality data of Chloride (Cl−) and Total Dissolve Solids (TDS). Considerable spatial and temporal variability was found in the seasonal groundwater-levels of the two aquifers. Further, decreasing trends were spotted in the pre-monsoon and post-monsoon groundwater-level time series of the leaky confined and confined aquifers, except pre-monsoon groundwater-levels in Contai-I and Deshpran blocks, and the post-monsoon groundwater-level in Ramnagar-I block for the leaky confined aquifer. The leaky confined aquifer in Contai-I, Contai-III, and Deshpran blocks and the confined aquifer in Nandigram-I and Nandigram-II blocks are vulnerable to seawater intrusion. There is an urgent need for the real-time monitoring of groundwater-levels and groundwater quality in both the aquifer systems, which can ensure efficient management of coastal groundwater reserves.


2018 ◽  
Vol 4 (2) ◽  
pp. 77-86 ◽  
Author(s):  
C. Thivya ◽  
S. Chidambaram ◽  
R. Thilagavathi ◽  
Venkatraman ◽  
N. Ganesh ◽  
...  

2019 ◽  
Vol 113 ◽  
pp. 180-191 ◽  
Author(s):  
Hazmimi Kasim ◽  
Che Rosmani Che Hassan ◽  
Mahar Diana Hamid ◽  
Sina Davazdah Emami ◽  
Mahmood Danaee

Al-Buhuts ◽  
2018 ◽  
Vol 14 (02) ◽  
pp. 38-52
Author(s):  
Ritmon Amala

Differences in the level of development will increase the level of speed between regions, which in turn causes greater regional disparities. Sulawesi Island has six provinces where each province has different economic growth. The push of the economy in every province in Sulawesi Island in it shows a positive trend. This study aims to examine the inequality of economic development between regions in North Sulawesi (2000–2013). The data used uses GRDP time series data, Population and Per Capita Revenue from 2000-2013. The analysis process used is Williamson Index Analysis. The results showed that the GDP per capita index between provinces in Sulawesi Island during the period 2000-2013 averaged 0.167 with a positive trend. The region that has the highest Williamson Index for South Sulawesi Province is (0.32) with a positive trend, and the lowest is West Sulawesi Province (0.08) with a positive trend. As a whole, the provinces in Sulawesi are in the crestieria: CVw <0.35 = Low level unity. But if the higher Williamson Index means to connect between large regions, it must be immediately sought to reduce the economic level caused by the economy between regions left to be higher, can cause social, economic and political consequences that occur in the sense of national unity, can issue the country's economic stability


Georesursy ◽  
2021 ◽  
Vol 23 (4) ◽  
pp. 51-57
Author(s):  
Igor Ognev ◽  
Alexey Stepanov

The relationship between the various human activities and seismic activity has become more evident in the last several decades. One of the important domains where such a relationship manifests itself is hydrocarbon fields’ development. South East Tatarstan (Russia) is a region where the link between seismicity and the development of the giant Romashkino hydrocarbon field has been established. The goal of the current study is to conduct the causative analysis between the seismic activity and the development of the Romashkino hydrocarbon field’s Almetyevskaya area which is located in the most seismically active zone of the south-eastern Tatarstan.


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