scholarly journals Geochemical Characteristics of Three Hot Springs from Western Thailand

2020 ◽  
pp. 101-113
Author(s):  
Thiwat R attanawong ◽  
Raphael Bissen ◽  
Waraporn Kumpairoh ◽  
Sakonvan Chawchai
Keyword(s):  
Stable Isotopes ◽  
Drinking Water ◽  
Low Temperature ◽  
Hot Springs ◽  
Hot Spring ◽  
Water Source ◽  
Geochemical Data ◽  
Geothermal Resources ◽  
Natural Resource Development ◽  
Δ18o And Δd

At present a total of 118 hot springs are distributed throughout Thailand. Several studies with a focus on high-temperature hot springs related to geothermal resources were conducted in the northern and southern parts of the country. Geochemical data, however; especially isotopes of medium-to-low temperature hot springs are still scarce. Geochemical water analyses and isotope studies can provide crucial information for the future economical development of the hot springs, such as reservoir temperature, water source and quality. This study aims to investigate the chemical composition and stable isotopes (δ18O, δD) of three hot spring waters from western Thailand; Hin Dad, Bor Klueng and Ban Samorthong (surface water temperatures of 40-50 °C). The chemical type of the hot spring waters from Ban Samorthong and Bor Klueng are alkaline-carbonate, while Hin Dad hot spring is a calcium-carbonate type with high amount of sulfate, which is related to bedrock. Based on the silica geothermometer, reservoir temperatures are 65-90 °C. The stable isotopes δ18O and δD of all hot spring waters suggest a recharge with meteoric waters. The three hot springs are well-known for public water recreation and health therapy. Bor Klueng, the least developed of the three hot springs is used by locals as a source of drinking water. Regarding toxic elements, Ban Samorthong hot spring has high fluoride (F-) (14.84 mg L-1); while Hin Dad hot spring shows concentrations of lead (Pb2+) (0.07 mg L-1) and Bor Klueng of Pb2+ (0.02 mg L-1), and F- (4.35 mg L-1) which are above drinking water limits and might lead to health problems. In conclusion, the examination of elemental compositions and stable isotopes (δ18O, δD) of the three hot springs contributes to a better understanding of reservoir temperatures and recharge and can be beneficial for the natural resource development of medium-low temperature hot springs in Thailand.

scholarly journals ANALISIS KIMIAWI AIRFORMASI PADA BATUGAMPING TERSIER DAERAH CISEENG BOGOR

PETRO ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 178
Author(s):  
Suherman Dwi Nuryana ◽  
Rendy Setiawan ◽  
Abdurrachman Asseggaf ◽  
Arini Dian
Keyword(s):  
Meteoric Water ◽  
Hot Springs ◽  
Hot Spring ◽  
Formation Water ◽  
Chemical Parameters ◽  
Preparation Stage ◽  
Δ18o And Δd ◽  
High Chloride ◽  
Isotope Content ◽  
Content Of Oxygen

<p>Ciseeng area of the Bogor Regency is geologically composed by the Quarter Volcano Deposition and Tertiary rocks. The phenomenon of hot springs in the Ciseeng area comes out through cracks in Tertiary-aged limestone. The purpose of this study was to determine the characteristics of formation water based on its chemical parameters. Research methods include the preparation stage; collection and compilation of groundwater data, and water samples; processing phase of groundwater chemical data, and stable isotope content of Oxygen-18 and Deuterium (δ18O and δ2H); and data analysis. Based on the analysis of water quality, formation water that comes out as a Ciseeng hot spring contains a high chloride element (Cl) 23,680.6 mgr/l as a result of reacting with rock minerals derived from the Tertiary rocks below which with water at high temperatures, based on its chemical facies the Ciseeng hot springs, have magnesium type chloride. The results of plotting δ18O and δD and deviations from the global meteoric water line show that the Ciseeng hot spring has the heaviest isotope content.</p>

Global return flow ratio

2017 ◽  
Author(s):  
Chloé Meyer
Keyword(s):  
Drinking Water ◽  
Water Source ◽  
Return Flow ◽  
Drinking Water Source ◽  
Chemical Contamination ◽  
Flow Ratio ◽  
Piped Water ◽  
Dug Wells

Population using an improved drinking water source (piped water into dwellings, yards or plots; public taps or standpipes; boreholes or tubewells; protected dug wells; or protected springs and rainwater) that is located on premises and available when needed and which is free of faecal and priority chemical contamination. Basin Pollution Quality Waste

scholarly journals Are children’s stools in Ghana disposed of safely? Evidence from the 2014 Ghana demographic and health survey

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Abdul-Aziz Seidu
Keyword(s):  
Drinking Water ◽  
Health Survey ◽  
Water Source ◽  
Demographic And Health Survey ◽  
Outcome Variable ◽  
Drinking Water Source ◽  
Safe Disposal ◽  
Toilet Facility ◽  
Improved Sanitation ◽  
Northern Zone

Abstract Background Safe disposal of children’s faeces has always been one of the main challenges to good hygiene in Ghana. Although it has been proven that children’s faeces are more likely to spread diseases than adults’ faeces, people usually mistake them for harmlessness. This study, therefore, sought to determine the prevalence and factors associated with safe disposal of children’s faeces in Ghana. Methods Data from the 2014 Ghana Demographic and Health Survey was used for the analysis. A sample size of 2228 mother-child pairs were used for the study. The outcome variable was disposal of children stools. Both bivariate and multivariable logistic regression analyses were performed to identify the factors with safe child stool disposal. Results The prevalence of safe child stool disposal in Ghana was 24.5%. Women in the middle [Adjusted odds ratio (AOR) = 4.62; Confidence Interval (CI) = 3.00–7.10], Coastal Zone [AOR = 4.52; CI = 2.82–7.22], mothers whose children were aged 12–17 [AOR = 1.56; CI = 1.15–2.13] and 18–23 months [AOR = 1.75; CI = 1.29–2.39], and mothers whose household had improved type of toilet facility [AOR = 2.04; CI = 1.53–2.73] had higher odds of practicing safe children’s faeces disposal. However, women from households with access to improved source of drinking water [AOR = 0.62; CI = 0.45–2.7] had lower odds of practicing safe children’s faeces disposal. Conclusion Approximately only about 25 out of 100 women practice safe disposal of their children’s faeces in Ghana. The age of the child, ecological zone, the type of toilet facilities, and the type of drinking water source are associated with the disposal of child faeces. These findings have proven that only improved sanitation (i.e. drinking water and toilet facilities) are not enough for women to safely dispose of their children’s faeces. Therefore, in addition to provision of toilet facilities especially in the northern zone of Ghana, there is also the need to motivate and educate mothers on safe disposal of children’s stools especially those with children below 12 months. More so, mothers without access to improved toilet facility should also be educated on the appropriate ways to bury their children’s stools safely.

Temporal variations in stable isotopes and synchronous earthquake-related changes in hot springs

2021 ◽  
pp. 126316
Author(s):  
Lei Zhang ◽  
Lishuang Guo ◽  
Xiaocheng Zhou ◽  
Yao Yang ◽  
Deyang Shi ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Hot Springs ◽  
Temporal Variations

Divergent responses of diverse microalgae commonly found in drinking water source water to UV-C treatment

2021 ◽  
Author(s):  
Jordan Roszell ◽  
Po-Shun Chan ◽  
Brian Petri ◽  
Ted Mao ◽  
Kathleen Nolan ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Source ◽  
Drinking Water Source ◽  
Source Water ◽  
Uv C

scholarly journals Origin of the low-medium temperature hot springs around Nanjing, China

2021 ◽  
Vol 13 (1) ◽  
pp. 820-834
Author(s):  
Jun Ma ◽  
Zhifang Zhou
Keyword(s):  
Hot Springs ◽  
Hot Spring ◽  
Hot Water ◽  
Geothermal Water ◽  
Geological Condition ◽  
Medium Temperature ◽  
Rock Interaction ◽  
Karst Landform ◽  
Karst Landforms ◽  
Development And Management

Abstract The exploration of the origin of hot spring is the basis of its development and utilization. There are many low-medium temperature hot springs in Nanjing and its surrounding karst landform areas, such as the Tangshan, Tangquan, Lunshan, and Xiangquan hot springs. This article discusses the origin characters of the Lunshan hot spring with geological condition analysis, hydrogeochemical data, and isotope data. The results show that the hot water is SO4–Ca type in Lunshan area, and the cation content of SO4 is high, which are related to the deep hydrogeological conditions of the circulation in the limestone. Carbonate and anhydrite dissolutions occur in the groundwater circulation process, and they also dominate the water–rock interaction processes in the geothermal reservoir of Lunshan. The hot water rising channels are deeply affected by the NW and SN faults. Schematic diagrams of the conceptual model of the geothermal water circulation in Lunshan are plotted. The origin of Tangshan, Tangquan, and Xiangquan hot springs are similar to the Lunshan hot spring. In general, the geothermal water in karst landforms around Nanjing mainly runs through the carbonate rock area and is exposed near the core of the anticlinal structure of karst strata, forming SO4–Ca/SO4–Ca–Mg type hot spring with the water temperature less than 60°C. The characters of the hot springs around Nanjing are similar, which are helpful for the further research, development, and management of the geothermal water resources in this region.

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