Volume 23, Issue 4 (winter 2020)                   JWSS 2020, 23(4): 227-240 | Back to browse issues page

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Janatrostami S, Mahmoudpour H. Environmental Assessment of Groundwater Pumping by Using Water and Energy Nexus. JWSS. 2020; 23 (4) :227-240
URL: http://jstnar.iut.ac.ir/article-1-3835-en.html
1. Department of Water Engineering, College of Agricultural Sciences, University of Guilan, Rasht, Iran. , janatrostami@guilan.ac.ir
Abstract:   (2595 Views)
One of the main sources of greenhouse gas (GHG) emissions is the use of energy for groundwater pumping. Reducing energy consumption is very important to achieve the environmental sustainability and decrease the climate change impacts. In this paper, the amount of greenhouse gas emissions from groundwater pumping in the Guilan’s aquifers was investigated. Firstly, groundwater depletion and the types of pumps for water pumping were examined in the current condition; then, the values of consumed energy, GHG emissions and climate change indicator of the current condition were estimated. The primary investigations showed that 55 percent of wells in the studied region had a diesel engine pump, while 51.3 percent of the required energy for groundwater pumping was supplied by electric pump. Calculated total GHG emissions and the value of climate change indicator in the current condition were equal to 8.98 and 7.59 Milion kg CO2 eq , respectively. In order to achieve environmental sustainability and energy security, scenarios of replacing electric pumps and applying solar energy were examined. The results of the scenarios showed that diesel fuel wells had no significant effect on the reduction of greenhouse gas emissions, but the use of solar energy reduced them. GHG emissions, in comparison with the base scenarios, were decreased by 44.4% in June, July and August, respectively, by applying the scenario of using the solar pump in agricultural section. Therefore, it is preferred to apply policies in future planning to use renewable energies such as solar energy instead of diesel and electricity energy.
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Type of Study: Research | Subject: Ggeneral
Received: 2019/01/16 | Accepted: 2019/05/14 | Published: 2020/02/29

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