Showing 861 - 880 results of 919 for search '"groundwater"', query time: 0.05s Refine Results
  1. 861

    Geological Modeling of the Senonian Aquifer in the Oued Guir Watershed (Southeast Morocco) by Messaoudi Badre, Kabiri Lahcen, El Ouali Mohamed, Ait Lahssaine Ismail, Kadiri Abdelhakim, Essafraoui Badre

    Published 2025-01-01
    “…This has led to increased overexploitation of groundwater, specifically the shallow Senonian aquifer. …”
    Get full text
    Article
  2. 862

    Cost-Effective Treatment of Hemihydrate Phosphogypsum and Phosphorous Slag as Cemented Paste Backfill Material for Underground Mine by Xilong Xue, Yuxian Ke, Qian Kang, Qinli Zhang, Chongchun Xiao, Fengjian He, Qing Yu

    Published 2019-01-01
    “…The results show that (1) the UCS of CPB increases with the increase of the HPG content and mass fraction, and the addition of 3% quicklime can eliminate CO2, H2S, and SO2 generated from the slurry of CPB-based HPG-PS; (2) the addition of 3% quicklime and 5% cement to the HPG-PS mixtures can offset the strength loss of CPB in the late curing stage; (3) the UCS of the recommended specimen reaches 1.15–3.32 MPa after curing from 7 to 28 days, with their slump values varying from 15 mm to 26 mm, and the bleeding rates between 0.87% and 1.15%, which can meet the technical requirements of mining methods; (4) the UCS of CPB is the result of the cohydration reaction of hemihydrate gypsum (HG) in HPG and active Al2O3 and SiO2 in PS; and (5) the leaching indexes meet Category IV of the Chinese Groundwater Quality Standard (DZ/T 0290-2015). The results of this investigation provide a cost-efficient way for the efficient mining of phosphate resources and the comprehensive utilization of HPG and PS.…”
    Get full text
    Article
  3. 863

    The evolving roles of geophysics in environmental assessment, monitoring, and management of landfill leachate contaminant plumes: An overview by Joseph Omeiza Alao

    Published 2025-06-01
    “…However, some key influencing factors such as subsurface porosity, hydraulic conductivity, redox conditions, heterogeneity contaminant, geological properties, water soil contents, and groundwater flow dynamics, seem to have a significant influence on the geophysical data acquisition, potentially projecting false positive/negative results. …”
    Get full text
    Article
  4. 864

    Spectral induced polarization survey for the estimation of hydrogeological parameters in an active rock glacier by C. Moser, U. Morra di Cella, C. Hauck, A. Flores Orozco

    Published 2025-01-01
    “…Changes in ground temperature and ice content are expected to affect the hydrogeological properties of rock glaciers and in turn modify the runoff regime and groundwater recharge in high-mountain environments. …”
    Get full text
    Article
  5. 865

    Bioenergy potential of Chlorella vulgaris under the influence of different light conditions in a bubble column photobioreactor by S. Dhanasekar, R. Sathyanathan

    Published 2023-10-01
    “…BACKGROUND AND OBJECTIVES: Recent investigations indicated that continuous use of fertilizers and pesticides in agricultural fields not only deteriorated soil health but also caused a deleterious effect on surface and groundwater bodies. Treating such wastewater using microalgae has shown higher nutrient removal and biomass efficiency. …”
    Get full text
    Article
  6. 866

    Impact of Climate Variability on Coffee Production in Kambuga Sub-County Kanungu District. by Tumutegyerize, Vicent

    Published 2024
    “…The study revealed the impact of climate variability on Coffee Production in Kambuga sub-county, Kanungu district, and these include; climate change as a reason for the rapid spread of leaf rust, hotter temperatures have caused plants to lose several growing days in their usual harvest cycle, coffee plants need a terrain with rich soil, rainfall and temperature changes are likely to reduce yields of desirable crops, temperature increases may cause changes in runoff and groundwater recharge rates. The study showed the practical adaptation strategies to mitigate the negative impacts of climate variability on coffee production in Kambuga sub-county, Kanungu district as they include; shade Management, water management, soil health management, crop diversification, pest and disease management. …”
    Get full text
    Thesis
  7. 867

    Surfactant-mediated transport behavior of zinc oxide nanoparticles in porous media by Yujue Wang, Zhou Cheng, Ming Wu, Yanru Hao

    Published 2025-01-01
    “…Nanomaterials and surfactants are widely detected in soil-groundwater environments, while the surfactant-mediated transport behavior of nanoparticles has not been sufficiently investigated. …”
    Get full text
    Article
  8. 868

    Late Glacial and Holocene Paleoenvironmental Reconstruction of the Submerged Karst Basin Pirovac Bay on the Eastern Adriatic Coast by Nikolina Ilijanić, Dea Brunović, Slobodan Miko, Valentina Hajek Tadesse, Ozren Hasan, Ivan Razum, Martina Šparica Miko, Saša Mesić

    Published 2025-01-01
    “…Intriguingly, freshwater ostracod species were still present in the marine sediments, brought into the bay from Lake Vrana through surficial canal Prosika and groundwater discharge (numerous estavelles) along the northeastern shores of the bay, proving their mutual influence. …”
    Get full text
    Article
  9. 869

    A szélsőséges időjárási jelenségek hatásai (Effects of the Extreme Weather Events) by Tamás Molnár, Katalin M. Barna

    Published 2015-04-01
    “…The 4th Water Report published by UNESCO is dealing with the one of the biggest problems which draws attention to hazards which are related water quality, groundwater, desertification, land degradation and drought (UNESCO, 2013). …”
    Get full text
    Article
  10. 870

    Removal of 2,4-Dichloro Phenoxy Acetic Acid by Silica Particles Obtained from the Siliceous Sand of Houeyogbe(Republic of Benin) by Houefaannick Leslie Glitho, Etienne V. Sagbo, Sèmiyou A. Osseni, Sidoine S. Bonou, Arthur Cakpo, Ignace Agani, Armel Laibi, Wariskéwouyèmi Chouti

    Published 2024-11-01
    “…Pesticides pollute soils, surface, and groundwater, and it is, therefore, important to find a way of mitigating or even eliminating their effects on the environment. …”
    Get full text
    Article
  11. 871

    Vegetation greening and climate change respectively regulates the long-term trend and interannual variability in evapotranspiration over the Loess Plateau since the 21st century by Qiaoyin Tan, Ting Hua, Ting Hua, Haichen Zhao, Peiye Zhou, Peiye Zhou

    Published 2025-01-01
    “…However, these efforts have also led to soil aridification, declining groundwater levels, and reduced terrestrial water storage. …”
    Get full text
    Article
  12. 872

    Failure mechanics mechanisms and permeability stage evolution of limestone considering wave velocity and failure surface characteristics by Genshui Wu, Weijian Yu, Bao Pan, Chuangfeng Fang, Hanxiao Guo, Chao Zhang

    Published 2025-02-01
    “…The deep coal seam mining floor rock mass in North China has been penetrated by groundwater for a long period in a high-temperature and high-pressure environment, and its mechanical behavior is complicated and diversified. …”
    Get full text
    Article
  13. 873
  14. 874

    University proceedings. Volga region. Natural sciences by I.S. Makeev, T.A. Konchina, M.S. Lyubov, O.I. Nedoseko

    Published 2024-11-01
    “…Results.The peculiarity of the studied water bodies is their drainage by highly mineralized groundwater, increased hardness, and high sulfate content in the water.The species structure of aquatic vegetation is generally more spatially evened than that of the shoreline herbaceous vegetation. …”
    Article
  15. 875

    Assessing water dependencies and risks in Dutch industries: Distribution, consumption and future challenges by C.J. Teo, J. Poinapen, J.A.M.H. Hofman, T. Wintgens

    Published 2025-06-01
    “…It revealed a strong correlation between facilities and nearby water sources, with a tendency for industries to cluster around water sources, peaking at a proximity of about 0–5 km for both surface water and groundwater sources. However, it also pointed out that this relationship is influenced by several other factors including water quality, extraction rights, historical development, and competition for water resources. …”
    Get full text
    Article
  16. 876

    Features and Constitutive Model of Gypsum’s Uniaxial Creep Damage considering Acidization by Wei Chen, Wen Wan, Senlin Xie, Wenlong Kuang, Wenqing Peng, Qiuhong Wu, Shasha Tong, Xianqing Wang, Xiaoyu Tang

    Published 2020-01-01
    “…Acidic fluids cause rock erosion and further endanger the safety of rock engineering, especially the corrosion of pillars by acidic or weakly acidic groundwater. In this paper, the rock samples in the gypsum mining area were taken as the research object. …”
    Get full text
    Article
  17. 877

    Predicting the critical drainage induced by soil seepage failure during pumping in foundation pit construction by Fuwei JIANG, Shujun TANG, Xiaofei DENG, Zhenchao LI, Fawang ZHANG, Hongyuan YIN

    Published 2025-01-01
    “…In the construction of foundation pits with shallow groundwater levels, improper control of pumping strength often leads to soil penetration failure, resulting in engineering accidents, casualties, and property losses. …”
    Get full text
    Article
  18. 878

    New Insights Into the Reservoir Landslide Deformation Mechanism From InSAR and Numerical Simulation Technology by Guoshi Liu, Bin Wang, Qian Sun, Jun Hu, Lei-Lei Liu, Wanji Zheng, Liye Zou

    Published 2025-01-01
    “…The numerical simulation results aid in interpreting the deformation mechanism of different spatial and temporal patterns of landslides from three aspects: hydrodynamic pressure from rainfall infiltration, groundwater hysteresis caused by RWL drop, and seepage forces from RWL rise. …”
    Get full text
    Article
  19. 879

    A multifactor coupled rarly-warning model for pipeline landslide hazards based on the dynamic evolutionary process of disaster by Sen WU, Dexu QI, Hu LI, Yu LAN, Jiang LI, Mingzhi SUN

    Published 2024-11-01
    “…Based on the analysis of the dynamic evolutionary process of pipeline landslide hazards, this study proposes four stages of pipeline landslide hazards: (1) rainfall on the landslide leads to surface infiltration; (2) the groundwater level rises increasing the slope self-weight increases and reducing the geotechnical parameter; (3) the slope has undergone local deformation; (4) the landslide slides entirely and threatens pipeline safety. …”
    Get full text
    Article
  20. 880