The impacts of groundwater heat pumps on urban shallow groundwater quality in Shenyang China

2012 ◽  
Vol 11 (36) ◽  
Author(s):  
Fengming Xi
Keyword(s):  
Groundwater Quality ◽  
Shallow Groundwater ◽  
Heat Pumps ◽  
Groundwater Heat Pumps

Study on the Influence of Shallow Groundwater Source Heat Pumps on Groundwater Quality in Weifang, China

2014 ◽  
Vol 641-642 ◽  
pp. 97-100
Author(s):  
Qiang Huang ◽  
Wei Ping Wang ◽  
Hai Yan Deng
Keyword(s):  
Groundwater Quality ◽  
Heat Pump ◽  
Shallow Groundwater ◽  
Heat Pumps ◽  
Total Hardness ◽  
Project Area ◽  
Research Objects ◽  
Groundwater Source ◽  
Change Curve

Selecting 4 shallow groundwater source heat pump (GSHP) projects as research objects in Weifang city of Shandong province, China, the groundwater quality in the project area was, observed and analyzed by sampling continuously. The results show that the concentrations of chloride and the total hardness are relatively stable, and there are no apparent changes; In the change curve of TDS in different kind of shallow GSHPs, the worse the sealing condition of the project, the more obvious the rising trend of TDS; The concentration of nitrate is generally on the rise, and the concentration of ammonia appears in the trend of first increased then decreased. Therefore, in the region, the shallow GSHPs are not completely free from contamination in the current technology conditions and the application should be controlled and managed strictly. The observation of shallow GSHPs still need be conducted in a long term.

Shallow groundwater quality on dairy farms with irrigated forage crops

2002 ◽  
Vol 55 (3-4) ◽  
pp. 287-315 ◽  
Author(s):  
Thomas Harter ◽  
Harley Davis ◽  
Marsha C Mathews ◽  
Roland D Meyer
Keyword(s):  
Groundwater Quality ◽  
Shallow Groundwater ◽  
Dairy Farms ◽  
Forage Crops

scholarly journals Assessing threats to shallow groundwater quality from soil pollutants in Glasgow, UK: development of a new screening tool

2017 ◽  
Vol 108 (2-3) ◽  
pp. 173-190 ◽  
Author(s):  
F. M. Fordyce ◽  
B. É. Ó Dochartaigh ◽  
H. C. Bonsor ◽  
E. L. Ander ◽  
M. T. Graham ◽  
...  
Keyword(s):  
Groundwater Quality ◽  
Soil Sample ◽  
Screening Tool ◽  
Shallow Groundwater ◽  
Groundwater Chemistry ◽  
Potential Threat ◽  
Quaternary Deposit ◽  
Metal Concentrations ◽  
High Soil ◽  
Very High

ABSTRACTA new GIS-based screening tool to assess threats to shallow groundwater quality has been trialled in Glasgow, UK. The GRoundwater And Soil Pollutants (GRASP) tool is based on a British Standard method for assessing the threat from potential leaching of metal pollutants in unsaturated soil/superficial materials to shallow groundwater, using data on soil and Quaternary deposit properties, climate and depth to groundwater. GRASP breaks new ground by also incorporating a new Glasgow-wide soil chemistry dataset. GRASP considers eight metals, including chromium, lead and nickel at 1622 soil sample locations. The final output is a map to aid urban management, which highlights areas where shallow groundwater quality may be at risk from current and future surface pollutants. The tool indicated that 13% of soil sample sites in Glasgow present a very high potential threat to groundwater quality, due largely to shallow groundwater depths and high soil metal concentrations. Initial attempts to validate GRASP revealed partial spatial coincidence between the GRASP threat ranks (low, moderate, high and very high) and groundwater chemistry, with statistical correlation between areas of high soil and groundwater metal concentrations for both Cr and Cu (r2>0.152; P<0.05). Validation was hampered by a lack of, and inconsistency in, existing groundwater chemistry data. To address this, standardised subsurface data collection networks have been trialled recently in Glasgow. It is recommended that, once available, new groundwater depth and chemistry information from these networks is used to validate the GRASP model further.

Acidification of shallow groundwater in the unconfined sandy aquifer of the city of Douala, Cameroon, Western Africa: implications for groundwater quality and use

2015 ◽  
Vol 74 (9) ◽  
pp. 6831-6846 ◽  
Author(s):  
G. E. Takem ◽  
D. Kuitcha ◽  
A. A. Ako ◽  
G. T. Mafany ◽  
A. Takounjou-Fouepe ◽  
...  
Keyword(s):  
Groundwater Quality ◽  
Shallow Groundwater ◽  
Western Africa ◽  
Sandy Aquifer ◽  
The City
Sign in / Sign up

Export Citation Format

Share Document