Numerical Simulation of Pollutant Transport in Fractured Vuggy Porous Karstic Aquifers by Xiaolin Fan, Shuyu Sun, Wei Wei, Jisheng Kou

“…This paper sheds light on certain features of karstic groundwater are obtained.…”
Get full text

Drought Monitoring and Analysis over Haihe River Basin Based on GRACE and MODIS Datasets by DU Yichen, CHEN Jiangzhaoxia, ZHANG Yuqi, SUN Ruiqi, YANG Haibo

“…This paper analyzes the spatial and temporalevolution characteristics of groundwater and surface vegetation coverage in theHaihe River Basin with the GRACE (Gravity Recovery and Climate Experiment) data,MODIS data, precipitation and evaporation data of 23 sites from 2003 to 2015,and builds a drought comprehensive index evaluation model by TOPSIS (Technique forOrder Preference by Similarity to Ideal Solution) method to reflect the droughtdynamics. …”
Get full text

Predicting deep-seated landslide displacement on Taiwan's Lushan through the integration of convolutional neural networks and the Age of Exploration-Inspired Optimizer by J.-S. Chou, H.-M. Nguyen, H.-P. Phan, K.-L. Wang

“…Our approach demonstrates exceptional forecasting capabilities by utilizing 8 years of comprehensive data – including displacement, groundwater levels, and meteorological information from the Lushan (mountainous) region in Taiwan. …”
Get full text

Eggshell Powder as an Adsorbent for Removal of Fluoride from Aqueous Solution: Equilibrium, Kinetic and Thermodynamic Studies by R. Bhaumik, N. K. Mondal, B. Das, P. Roy, K. C. Pal, C. Das, A. Baneerjee, Jayanta kumar Datta

“…These results indicate that eggshell powder can be used as an effective, low-cost adsorbent to remove fluoride from aqueous solution as well as groundwater.…”
Get full text

KEBIJAKAN KETAHANAN PANGAN DI INDONESIA MELALUI PENDEKATAN ANALISIS BIBLIOMETRIC by Delly Maulana, Fikri Habibi, Indra Nizar Purnama

“…While issues that are still rarely studied are food security policies related to land, environmental degradation, food security for households, groundwater use, and public health aspects.  Furthermore, there are several policy strategies to resolve food security issues in Indonesia, namely:  First, the government must make agricultural policies that encourage collaboration between stakeholders, namely the government, companies, farmers, and scientists; Second, there needs to be a policy that encourages the transformation of food technology to create food security, Third, there needs to be a policy to empower people to return to agricultural land, Fourth, there needs to be a policy to overcome agricultural land problems, and Fifth, there needs to be a policy to control food waste.…”
Get full text

The EU Nitrates Directive: A European Approach to Combat Water Pollution from Agriculture by Gert J. Monteny

“…These are regions where the nitrate concentrations in the groundwater amount to 50 mg/l or more. In addition to Codes of Good Agricultural Practice, valid on a countrywide basis and often consisting of voluntary-based measures, specific Action Programmes with mandatory measures have to be developed for the NVZs. …”
Get full text

Application Research of New Cementitious Composite Materials in Saline Soil Subgrade Aseismic Strengthening by Shuai Huang, Yuejun Lyu, Yanju Peng

“…Saline soil affected by earthquakes and groundwater can lead to subgrade subsidence and collapse in highway construction. …”
Get full text

DEVELOPMENT OF THE PLAN OF DISTRIBUTION OF SURFACE WATER RESOURCES FOR RIVER BASINS OF THE NORTH-EASTERN SLOPE OF THE LESSER CAUCASUS by Farda A. Imanov

“…It is also necessary to include groundwater resources and their use in water allocation plan.…”

La communauté Nova Esperança (PR) : l'incorporation des droits des migrants internationaux et des réfugiés aux revendications des mouvements de lutte pour le logement au Brésil... by Elaine Cristina Schimtt Ragnini, Daniele Regina Pontes, José Ricardo Vargas de Faria, Márcio de Oliveira

“…In the opposite direction, in the community, residents preserve the forest, organize solid waste collection, build biodigesters and certain septic tank structures to reduce soil and groundwater contamination. In addition, there is a community garden, a collective kitchen and a sewing workshop. …”
Get full text

Forecast of brine blowout zones in the Amu Darya basin and analysis of brine blowout in oil and gas fields by Deryaev Annaguly

“…The study examined the geological structure through the assessment of lithological and facies maps and sections, the geochemical content of salts and isotopic composition of waters, and hydrogeological methods, including analysis of groundwater regime and well drilling. The obtained data deepened the understanding of the region’s geological structure and identified potential hydrocarbon concentration zones, which are crucial for further extraction and utilisation of these resources. …”
Get full text

Study on the Durability of Concrete under an Underwater Coupling Environment by Chunhua You, Gen He

“…By preparing 7 kinds of pile foundation concrete samples with different mix proportions, the mechanical properties of concrete with different ages were analyzed under the coupling environment of groundwater. The chloride penetration resistance of concrete was analyzed by the RCM method, and the sulfate corrosion resistance was analyzed by the 17D accelerated simulation test. …”
Get full text

Transformações nos modelos de produção agrícola e nas paisagens: by Roberto Verdum, Alfonso Garcia de la Vega

“…Similarly, in the Spanish autonomous community, since the 1980s, especially since Spain's integration into the European Economic Community (EEC) and the Common Agricultural Policy (CAP), there has been a growing increase in woody monocultures, associated with surface water and groundwater irrigation. In addition to intense agricultural production, desertification problems stand out, related to the abusive use of water sources, with associated erosion processes. …”
Get full text

Research progress of ion exchange selective electrodialysis by HUANG Hanwen, FENG Ling, TIAN Binghui

“…On this basis, the development status of IXED and ISED process structures and technologies was summarized, and the research progress of ISED technology in the direction of ion separation and recovery in groundwater and industrial wastewater was discussed and analyzed. …”
Get full text

Vertical Electric Sounding of Leachate Contaminant Plumes at a Dumpsite in Obigbo, Rivers State, Nigeria by W. Tamuno, S. Inichinbia

“…The results also revealed that the  surrounding soil and groundwater around the landfill has not been contaminated to depths exceeding 15.6 m, which is shallower than the productive aquifer depth greater than 37.0 m. …”
Get full text

A Novel Multivariate Spectral Local Quasilinearization Method (MV-SLQLM) for Modelling Flow, Moisture, Heat, and Solute Transport in Soil by Elias Mwakilama, Vusi Magagula, Duncan Gathungu

“…Conventionally, the problem of studying the transport of water, heat, and solute in soil or groundwater systems has been numerically solved using finite difference (FD) or finite element (FE) methods. …”
Get full text

Analytical Solution of Seepage Field in Karst Tunnel by Chong Jiang, Han-song Xie, Jia-li He, Wen-yan Wu, Zhi-chao Zhang

“…An analytical solution for the seepage field in water-filled karst tunnel is derived based on the inversion of complex function and groundwater hydraulics theory. The solution considers the distance between the tunnel and the cavern, the size of the cavern, and the properties of the lining structure, such as the permeability coefficient as well as the radius of the grouting ring. …”
Get full text

Public perception of the management of medical B3 waste and wastewater at health centers in Rejang Lebong Regency by Anggreni Dewi, Budihardjo Mochamad Arief, Muhammad Fuad

“…Disposal of wastewater that does not meet quality standards or is not managed into the environment can pollute surface water and groundwater. This study examines public perceptions of the management of medical B3 waste and wastewater at health centers in Rejang Lebong Regency. …”
Get full text

N-Losses and Energy Use in a Scenario for Conversion to Organic Farming by Tommy Dalgaard, Chris Kjeldsen, Nicholas J. Hutchings, Jorgen F. Hansen

“…A pilot scenario was carried out, where predicted changes in N-losses and E-uses following conversion to organic farming in areas with special interests in clean groundwater were compared. The N-surplus and E-use were on average reduced by 10 and 54%, respectively. …”
Get full text

Experimental and Statistical Study on Wellbore Scaling Mechanisms and Characteristics for Huanjiang Oilfield by Na Zhang, Xicheng Wang, Jianmin Zhang, Xiaopeng He, Shaofei Kang, Jingyang Pu, Shuhang Fan, Xu Li

“…The results show that the water types of formation and groundwater are CaCl2 and Na2SO4, respectively. The oil wells produced from Chang 4+5, Chang 6, and Chang 8 reservoir layers in the development of Yanchang group are mainly calcium-based scale (CaCO3 and CaSO4), supplemented by wax deposition scale, corrosion scale, and NaCl and KCl crystal scale. …”
Get full text

New records and unusual morphology of the cave hydrozoan Velkovrhia enigmatica Matjašič & Sket, 1971 (Cnidaria: Hydrozoa: Bougainvilliidae) by Maja Zagmajster, Teo Delić, Simona Prevorčnik, Valerija Zakšek

“… Velkovrhia enigmatica is the only freshwater hydrozoan living exclusively in groundwater. It is endemic to the Dinarides in the Balkan Peninsula, where it has been known from four caves only. …”
Get full text