Results 21 to 30 of about 3,252 (259)

Distribution characteristics of cadmium and lead in particle size fractions of farmland soils in a lead–zinc mine area in Southwest China

Environmental Systems Research, 2018
Background Cd and Pb were the main pollution elements in Pb–Zn mining areas. Several studies have focused on heavy metal pollution and risk assessment in the Huize Pb–Zn mining area.
Yazhu Mi, Fangdong Zhan, Bo Li, Li Qin, Jixiu Wang, Yanqun Zu, Yuan Li   +6 more
doaj   +1 more source

Soil Aggregate Breakdown with Colloidal Particles Release and Transport in Soil: A Perspective from Column Experiments

Agriculture, 2022
The strongest fortresses often disintegrate from the inside. Likewise, soil internal forces play a critical role in the initial breakdown process of soil aggregate, thus accelerating soil erosion and the release of soil colloid particles.
Gang Cao, Bokun Chang, Zhiying Zhou, Liang Hu, Wei Du, Jialong Lv   +5 more
doaj   +1 more source

Soil Colloids and the Soil Solution [PDF]

The Journal of Physical Chemistry, 1915
n ...
openaire   +1 more source

Adsorption, transformation, and colloid-facilitated transport of nano-zero-valent iron in soils

Environmental Pollutants & Bioavailability, 2019
Because of its unique reductive properties, nanoscale zero-valent iron (NZVI) has been widely used in soil and groundwater remediation. It is crucial to understand the fate of NZVI in soils.
Shugang Zhang, Xuan Li, Yuechao Yang, Yuncong Li, Jianqiu Chen, Fangjun Ding   +5 more
doaj   +1 more source

COLLOID RELEASE AND TRANSPORT IN AGRICULTURAL SOIL AS IMPACTED BY SOLUTION CHEMISTRY

Journal of Urban and Environmental Engineering, 2011
Colloid release from the agricultural soil under unsaturated conditions was controlled by the hydrodynamic force, capillary force and electrostatic force that were determined by the solution chemistry in terms of solution ionic strength and pH.
Sandip Patil, Kamal Tawfiq, Gang Chen
doaj   +2 more sources

Transport and Deposition of Variably Charged Soil Colloids in Saturated Porous Media

Vadose Zone Journal, 2011
A series of column experiments was conducted to investigate the transport and deposition of variably charged colloids in saturated porous media. Soil colloids with diameters
Anu Sharma, Ken Kawamoto, Per Moldrup, Lis Wollesen deJonge, Toshiko Komatsu   +4 more
doaj   +1 more source

Dry-wet and freeze-thaw cycles enhance PFOA leaching from subsurface soils

Journal of Hazardous Materials Letters, 2021
Subsurface soil naturally experiences dry-wet and freeze-thaw cycles, which could affect the leaching of previously adsorbed pollutants. A slow release of poly- and perfluoroalkyl substances (PFAS) from impacted subsurface soil may serve as a long-term ...
Annesh Borthakur, Patience Olsen, Gregory P. Dooley, Brian K. Cranmer, Unnati Rao, Eric M.V. Hoek, Jens Blotevogel, Shaily Mahendra, Sanjay K. Mohanty   +8 more
doaj   +1 more source

Combined effects of soil colloid and soil extracellular enzymes on nitrogen loss from sloping farmland

Geoderma
The extracellular enzyme plays a crucial role in nitrogen (N) conversion. Soil colloid serves as an important transporter of N transport in hydrological processes.
Xuekai Jing, Qingwen Zhang, Shanghong Chen, Yulong Shi, Li Zheng, Dinghui Liu, Mingxiang Xu   +6 more
doaj   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

COLLOID RELEASE AND E. COLI TRANSPORT IN INTACT AGRICULTURAL SOIL COLUMNS

Journal of Urban and Environmental Engineering, 2012
During animal waste agricultural applications, the major concern is the pathogen spreading, which may contaminate groundwater. Colloid release and pathogen transport during irrigation were evaluated in intact agricultural soil columns in this research ...
Gang Chen, Kamal Tawfiq, Sandip Patil
doaj   +2 more sources