Essays about: "groundwater extraction"

Showing result 1 - 5 of 38 essays containing the words groundwater extraction.

1. 1. High levels of nickel from sulphide soil in Umeå's raw water : Modeling of groundwater flow and mass transport in Forslunda aquifer

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

   Author : Merhawi Belai; [2024]
   Keywords : nickel; sulfide; sulphide; groundwater; modeling; mass transport; Feflow; Umeå; nickel; sulfid; monosulfid; grundvatten; modellering; masstransport; Feflow; Umeå;

   Abstract : The raw water in some of Umeå's abstraction wells has shown high nickel levels for more than a decade. The cause has not been determined but there is an investigation from 2010 where the results indicate sulphide clay found adjacent to two basins used for artificial infiltration. READ MORE

3. 2. Water use efficiency in agricultural irrigation in Egypt: A qualitative study on the complexities of utilising fossil groundwater resources in the face of water scarcity

   University essay from Lunds universitet/Ekonomisk-historiska institutionen

   Author : Johannes David Huber; [2023]
   Keywords : Water scarcity; water use efficiency; agricultural irrigation; desert farming; sustainability; groundwater extraction; Nubian Sandstone Aquifer System NSAS ; Business and Economics;

   Abstract : This study examines the adaptive capacity of desert farming in Egypt to imminent water scarcity and discusses the sustainability of fossil groundwater extraction. Through qualitative semi-structured expert interviews, the study identifies clear research and data gaps related to the Nubian Sandstone Aquifer System (NSAS) and highlights the need for a nuanced approach to fossil groundwater extraction that focuses on water use efficiency improvements. READ MORE

4. 3. Hydrogeological and economic analysis of a groundwater-based water supply system in rural Nepal

   University essay from Lunds universitet/Väg- och vattenbyggnad (CI); Lunds universitet/Teknisk geologi

   Author : Hamon Hedayatnasab; [2023]
   Keywords : Technology and Engineering;

   Abstract : Access to safe drinking water and sanitation is a given standard and considered as basic human rights in urban areas and industrialized countries. However, 40 % of the world's population living in rural areas in developing countries lack access to safe drinking water. READ MORE

5. 4. Solubility of arsenic in untreated and ZVI-treated contaminated aquifer material

   University essay from SLU/Dept. of Soil and Environment

   Author : Oscar R. Davies; [2022]
   Keywords : Hjältevad; zerovalent iron; phosphate extraction; Oxalate extraction; Visual MINTEQ; geochemical modelling;

   Abstract : Arsenic (As) is a toxic element to all life and exists in nature both naturally and anthropogenically. Naturally As contaminated soils are formed due to high geogenic background As concentrations which is released when bedrock is eroded. Asia is a continent with a high amount of naturally As contaminated soils and groundwater. READ MORE

6. 5. Design and Optimisation of an Aquifer Storage and Recovery System - Options for long term storage under natural hydraulic gradients

   University essay from Lunds universitet/Teknisk geologi

   Author : Simon Kreipl; [2021]
   Keywords : Aquifer storage and recovery; well-field design; groundwater modelling; numerical modelling; FEFLOW; Technology and Engineering;

   Abstract : Aquifer storage and recovery (ASR) is a concept where water is stored in an aquifer during times when it is available, thus creating artificial groundwater, which can later be recovered by pumping when it is needed (Pyne, 1995). One ASR cycle consists of a injection, a standby and a recovery phase. READ MORE