Search
Search Results
-
Plastic pollution in riverbeds fundamentally affects natural sand transport processes
Over the past 50 years, rivers have become increasingly important vectors for plastic pollution. Lowland riverbeds exhibit coherent morphological...
-
Effect of Hydrochemical Factors on the Retention and Transport of Ribavirin in Saturated Sand and Limestone Porous Media
The antiviral drug ribavirin is widely used and continuously released into the environment through various pathways, which will cause serious water...
-
Investigating rate-limited sorption, sorption to air–water interfaces, and colloid-facilitated transport during PFAS leaching
Various sorption processes affect leaching of per- and polyfluoroalkyl substances (PFAS) such as PFOA and PFOS. The objectives of this study are to...
-
Fingerprinting construction sand-supply networks for traceable sourcing
Globally increasing demand for construction sand needs to be met with transparent and responsible supply-networks. Currently, there are few scalable...
-
Extent of illegal sand mining in the Mekong Delta
Sand is a vital ingredient for modern structures and to meet demand, a substantial volume of sand is extracted illegally from riverbeds globally. The...
-
Sand-fixing effect and compound change of nylon checkerboard sand barrier
Grid-based sand-fixing protection barriers have been widely used to solve linear engineering problems in sandy areas. Their placement directly...
-
Combined Effects of Fe/Al Oxyhydroxide Coating and pH on Polystyrene Nanoplastic Transport in Saturated Sand Media
Nanoplastics (NPs) in the subsurface environment have received great attention recently. In this study, column experiments were conducted to...
-
Numerical Study on Equilibrium Sand Partitioning of the Horizontal Well Multi-cluster Fracturing Technology
Multi-cluster fracturing technology of horizontal wells is the main technical means for the effective development of shale reservoirs. To obtain...
-
Transport and retention of ciprofloxacin with presence of multi-walled carbon nanotubes in the saturated porous media: impacts of ionic strength and cation types
The environmental fate and risks of ciprofloxacin (CIP) in the subsurface have raised intensive concerns. Herein, the transport behaviors of CIP in...
-
Co-Transportation of Zn (II)–Ni (II) and Inorganic Soil Colloids in Saturated Porous Media: Effects of Flow Rate, Solution Chemistry, Colloid Concentration and Porous Media
Soil colloids may be a carrier for heavy metal ions co-transporting to groundwater. Therefore, co-transportation of Zn(II)–Ni(II), important mixture...
-
Co-transport of Cr(VI) and Bentonite Colloid in Saturated Porous Media
Transport of Cr(VI) at the presence of bentonite colloid was carried out in saturated porous media of 16–18 mesh and 40–60 mesh sand columns. Effects...
-
Source supply processes of the megadune field in the Badain Jaran Sand Sea
PurposeAlthough the formation mechanism of the megadunes in the Badain Jaran Sand Sea has received considerable research attention, their provenance...
-
Hyperconcentrated floods cause extreme gravel transport through the sandy rivers of the Gangetic Plains
The Gangetic Plains comprise steep gravelly river channels that transition to low gradient sandy channels 10-40 km downstream of the mountain front....
-
Evaluating temporal sand drift potential trends in the Sistan region, Southeast Iran
The Sistan region in Southeastern Iran is one of the world’s most sensitive areas when it comes to sandstorms and wind erosion. One of the most...
-
Numerical modeling to assess the effect of soil texture on transport and attenuation of petroleum hydrocarbons in unsaturated zone
Soil texture in the unsaturated zone is a critical factor affecting the transport, accumulation, and attenuation rate of petroleum hydrocarbons...
-
Microplastic and Silica Colloid Transport in a Saturated Porous Medium Under Various Flow Directions: the Effect of Gravity
Most experiments into colloidal transport and retention in lab-scale columns are performed in the up-flow mode of liquid movement in order to...
-
Different co-transport forms of ciprofloxacin with montmorillonite colloids in porous media as affected by pH and cations
PurposeContinuous release of antibiotics into the environment poses a potential threat to human and animal health. The existing forms of antibiotics...
-
Decontamination of oil-contaminated sand using anionic–nonionic mixed surfactant-based microemulsion formation: the study of surfactant and oil balances
The surfactant-based microemulsion technique enhances oil-contaminated soil remediation with high removal performance. With the presence of soil in...
-
Transport behavior of nanoplastics in activated carbon column
Nanoplastics can be produced directly from some artificial products, such as cosmetics, or indirectly from the breakup of large pieces of plastic...
-
Concerns Deriving from the Sand Business and Potential Substitutes for a Sustainable Construction Sector
Among the different types of mining, the extraction of sand for buildings is one of the largest industries, not only in volume but also in value....