Groundwater quality and pollution evaluation in Xinjiang plain area

2014 ◽  
Author(s):  
Yuanyuan Ji ◽  
Jinlong Zhou ◽  
Yexin Gao ◽  
Qiao Li ◽  
Ruiliang Jia ◽  
...  
Keyword(s):  
Groundwater Quality ◽  
Plain Area ◽  
Pollution Evaluation

scholarly journals Mapping of Groundwater Vulnerability Index in the Alluvial Plain of Semarang City Using the Susceptibility Index Method

2019 ◽  
Vol 125 ◽  
pp. 01010 ◽  
Author(s):  
Adetya Arga Marjuanto ◽  
Thomas Triadi Putranto ◽  
Denny Nugroho Sugianto
Keyword(s):  
Groundwater Quality ◽  
Negative Impact ◽  
Groundwater Vulnerability ◽  
Vulnerability Index ◽  
Alluvial Plain ◽  
Analysis Tool ◽  
Index Method ◽  
Plain Area ◽  
Susceptibility Index ◽  
Negative Impacts

One of the negative impacts of settlements and urbanization is the decline in groundwater quality. In maintaining the sustainability of groundwater for a long period of time, a special study is needed, which can be done by examining groundwater vulnerability. The alluvial plain of Semarang City currently faces environmental problems such as degradation of groundwater quality which is the negative impact of the settlement, The purpose of this study was to examine groundwater vulnerability in the alluvial plain area of Semarang City. The Susceptibility Index method is using a spatial analysis tool based on rating and weighting value of some parameters, i.e. Depth of groundwater, recharge, aquifer media, slope, and land use. The result of this research reveals that about 41.3% area is covered under the high vulnerable zone, 50.3% area under moderately vulnerable zone and 8.4% area under the low vulnerable zone. 7 sub districts namely Tugu, Semarang Barat, Semarang Utara, Semarang Timur, Gayamsari, Pedurungan and Genuk, most of which are in the high vulnerability zone. Whereas the Ngaliyan, Semarang Selatan, Semarang Tengah, Candisari, and Gajah Mungkur, which are mostly in the low to moderate vulnerability zones.

Effects of Groundwater Heat Pump Systems on the Temperature and Quality of Groundwater in Recharged Aquifer

2014 ◽  
Vol 670-671 ◽  
pp. 1016-1022
Author(s):  
Bing Hua Li ◽  
Xiao Juan Cao ◽  
Li Cai Liu ◽  
Fan Dong Zheng ◽  
Ni Zhang
Keyword(s):  
Groundwater Quality ◽  
Heat Pump ◽  
Flow Rate ◽  
Relative Reduction ◽  
Injection Wells ◽  
Plain Area ◽  
Pumping Wells ◽  
Groundwater Heat Pump ◽  
Thermal Breakthrough ◽  
Inorganic Components

Groundwater heat pump (GWHP) systems in three different hydrogeological fields, Beijing were selected, and their effects on temperature of groundwater in recharged aquifer were researched for three years. Results showed that the degree of thermal breakthrough was controlled by the distance between pumping wells and injection wells, and the temperature of groundwater with high flow rate can recover to normal faster than those with low flow rate. When distance between pumping wells and injection wells were shorter than 30m, thermal breakthrough may happen and the variation range of groundwater temperature during one heating or cooling period was 8~12°C.However, thermal breakthrough can be negligible and the temperature of groundwater may be steady when the distance between those wells was longer than 50m. Furthermore, GWHP in two different hydrogeological fields were selected to observe their effects on groundwater quality for one year. One GWHP was situated on the northwest piedmont alluvial fan of Beijing and the other was located in the southeast plain area of Beijing. Groundwater was sampled from those fields and thirty-two inorganic components were analyzed. Heavy metals were not detected, and calcium, magnesium, chloride, sulfate, fluoride and other ten inorganic components were studied. Groundwater quality in the northwest of Beijing was relatively steady because that aquifer was in relative oxidation environment. However, groundwater quality in the southeast of Beijing was subject to change because that aquifer was in relative reduction environment. Nitration reaction happened in the plain area, and ammonia, nitrite converted into nitrite nitrogen and nitrate nitrogen, respectively. Simultaneously, pH, concentrations of iron and manganese decreased, and total hardness increased.

Effects of Groundwater Heat Pump Systems on the Temperature and Quality of Groundwater in Recharged Aquifer

2014 ◽  
Vol 672-674 ◽  
pp. 379-385
Author(s):  
Bing Hua Li ◽  
Xiao Juan Cao ◽  
Li Cai Liu ◽  
Fan Dong Zheng ◽  
Ni Zhang
Keyword(s):  
Groundwater Quality ◽  
Heat Pump ◽  
Flow Rate ◽  
Relative Reduction ◽  
Injection Wells ◽  
Plain Area ◽  
Pumping Wells ◽  
Groundwater Heat Pump ◽  
Thermal Breakthrough ◽  
Inorganic Components

Groundwater heat pump (GWHP) systems in three different hydrogeological fields, Beijing were selected, and their effects on temperature of groundwater in recharged aquifer were researched for three years. Results showed that the degree of thermal breakthrough was controlled by the distance between pumping wells and injection wells, and the temperature of groundwater with high flow rate can recover to normal faster than those with low flow rate. When distance between pumping wells and injection wells were shorter than 30m, thermal breakthrough may happen and the variation range of groundwater temperature during one heating or cooling period was 8~12°C.However, thermal breakthrough can be negligible and the temperature of groundwater may be steady when the distance between those wells was longer than 50m. Furthermore, GWHP in two different hydrogeological fields were selected to observe their effects on groundwater quality for one year. One GWHP was situated on the northwest piedmont alluvial fan of Beijing and the other was located in the southeast plain area of Beijing. Groundwater was sampled from those fields and thirty-two inorganic components were analyzed. Heavy metals were not detected, and calcium, magnesium, chloride, sulfate, fluoride and other ten inorganic components were studied. Groundwater quality in the northwest of Beijing was relatively steady because that aquifer was in relative oxidation environment. However, groundwater quality in the southeast of Beijing was subject to change because that aquifer was in relative reduction environment. Nitration reaction happened in the plain area, and ammonia, nitrite converted into nitrite nitrogen and nitrate nitrogen, respectively. Simultaneously, pH, concentrations of iron and manganese decreased, and total hardness increased.

Assessment of Groundwater Quality of the Central Gangetic Plain Area of India Using Geospatial and WQI Techniques

2018 ◽  
Vol 92 (6) ◽  
pp. 743-752 ◽  
Author(s):  
Dharmendra Kumar Verma ◽  
Gouri Sankar Bhunia ◽  
Pravat Kumar Shit ◽  
Ashwani Kumar Tiwari
Keyword(s):  
Groundwater Quality ◽  
Gangetic Plain ◽  
Plain Area

Evaluation of groundwater quality in the Xinjiang plain area

2010 ◽  
Vol 4 (2) ◽  
pp. 183-186 ◽  
Author(s):  
Jinlong Zhou ◽  
Xinguang Dong ◽  
Guomin Li ◽  
Yiping Wang ◽  
Xiaojing Guo
Keyword(s):  
Groundwater Quality ◽  
Plain Area

Modelling herbicide treatment impact on groundwater quality in a central Italy area

Agronomie ◽  
2001 ◽  
Vol 21 (3) ◽  
pp. 267-276
Author(s):  
Daniela Businelli ◽  
Enrico Tombesi ◽  
Marco Trevisan
Keyword(s):  
Groundwater Quality ◽  
Central Italy ◽  
Herbicide Treatment

Physico-Chemical Assessment of Groundwater Quality of Ahmednagar Industrial Area

2011 ◽  
Vol 4 (4) ◽  
pp. 228-230
Author(s):  
Patil S.S Patil S.S ◽  
◽  
Gandhe H.D Gandhe H.D ◽  
Ghorade I.B Ghorade I.B
Keyword(s):  
Groundwater Quality ◽  
Industrial Area ◽  
Physico Chemical ◽  
Chemical Assessment
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