Results 31 to 40 of about 951 (173)

Layered Radial Aquifer Model for Open‐Pit Mine Closure with Managed Aquifer Recharge

Groundwater, EarlyView.
A radially symmetric layered aquifer model (unconfined–aquitard–confined) coupled to a pit‐lake water balance is developed to screen managed aquifer recharge (MAR) after open‐pit mine closure. Dimensionless type curves quantify trade‐offs between pit recovery time, pumping/recycling, and unconfined mounding as functions of aquifer time scales, aquitard
Behzad Ataie Ashtiani
wiley   +1 more source

Design and Analysis of the Multifunctional Oil-Injection Equipment for Deep-Sea Hydraulic Systems

IEEE Access, 2020
Hydraulic systems have been frequently used in deep-sea equipment because of their renowned long service life, stable and reliable performance. However, impurities contained in hydraulic oil, such as solid particles, gas and water, would jeopardize work ...
Haocai Huang, Chengcheng Zhu, Wenjun Zhang, Shuai Hao, Shuqing Zhang, Jianxing Leng, Yan Wei   +6 more
doaj   +1 more source

Numerical model of water removal and air penetration during vacuum dewatering [PDF]

Drying Technology, 2020
Dewatering and air flow in high vacuum suction boxes was examined. The work was mainly numerical and was based on, and compared with, previously published experimental results of vacuum dewatering ...
Björn Sjöstrand, Lars Nilsson, Henrik Ullsten, Christophe Barbier   +3 more
openaire   +2 more sources

Demonstration of a High‐Resolution Passive Profiler for Characterizing the Distribution of PFAS in Groundwater: A Comparison of Methods in the Field

Groundwater Monitoring &Remediation, EarlyView.
Abstract Characterizing the concentration and mass flux spatial distributions at sites with complex hydrogeologic conditions is critical to evaluate the fate and transport of contaminants, as well as to design effective remediation programs. PFAS (per‐ and polyfluoroalkyl substances)‐contaminated sites are even more complex due to the large number of ...
Morgan Eldridge, Jessica LaFond, Micaela Vavra, Graig Lavorgna, David Lippincott, Paul Hatzinger, Jennifer Guelfo, Todd Anderson, W. Andrew Jackson   +8 more
wiley   +1 more source

Recognition of fossil keratose sponges in carbonates using petrographic and machine‐learning classification

Sedimentology, EarlyView.
ABSTRACT Filamentous, anastomosing spar‐filled networks in Phanerozoic carbonates have been interpreted as the mineralised remains of keratose (non‐spiculate) sponges, yet their recognition remains contested because fabrics of broadly similar appearance may arise from microbial, diagenetic or physical processes. This study combines direct fossil–modern
Jeong‐Hyun Lee, Seung‐Sep Kim, Cui Luo   +2 more
wiley   +1 more source

Cationized Dialdehyde Cellulose Synthesized with Deep Eutectic-like Solvents: Effects on Sheet Dewatering and Mechanical Properties When Used as Wet-End Additive

BioResources, 2023
The ability of cationized dialdehyde cellulose to improve the mechanical properties of paper was evaluated. The majority of cationized additives are synthesized by introducing cationic groups through chemical reactions.
Mozhgan Hashemzehi, Björn Sjöstrand
doaj   +2 more sources

Moderate‐Temperature Hydrothermal Treatment Removes Detectable DNA and Antibiotic Resistance Genes From Municipal Sludge While Preserving Resource Value

Water and Environment Journal, EarlyView.
This graphical abstract shows the overall study design where dewatered wastewater sludge samples were collected and subjected to a range of HT temperatures. Measurement of nucleic acid concentration and antibiotic resistance gene profiles across temperatures showed that HT at moderate temperatures offers sustainable, scalable sludge sanitation and ARG ...
R. Sean Norman, Mirza Isanovic, Gabrielle Kartzmark, Nicole Berge   +3 more
wiley   +1 more source

Integrated remediation through solidification and dewatering of contaminated soil from laboratory investigation to in-situ application

Soils and Foundations
Solidification/stabilization of heavy metal contaminated soils often falls short of achieving the desired quality due to challenges in effectively controlling mixing uniformity. Optimization of mixing equipment and construction technology is a common way
Tingting Deng, Yongfeng Deng, Hang Liu, Fang Liu, Zhenshun Hong, Xueyu Geng   +5 more
doaj   +1 more source

Froth flotation and subsequent dewatering circuit optimization [PDF]

MATEC Web of Conferences
The proper selection of dewatering equipment downstream of flotation is vital in maximizing preparation plant yield. As such, mismatched flotation and dewatering equipment can lead to catastrophic reductions in plant profitability.
Bethell Peter J., Keim Steven A., Nielson John   +2 more
doaj   +1 more source

Field and Experimental Observations Show Elevated Shear Strength of Active Margin Sediments Requires Processes Beyond Normal Consolidation

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Near‐seafloor marine sediments on active margins have been shown to be stronger than those on passive margins. However, the reasons for this are not fully understood. To investigate the role of intrinsic properties, we performed resedimentation and oedometer tests and measured undrained shear strength, grain size, mineralogy, and plasticity on
Bailey Fitzgerald, Derek E. Sawyer, Julia S. Reece, Wyatt Scott   +3 more
wiley   +1 more source