Cationic Nanosorbents Biopolymers: Versatile Materials for Environmental Cleanup

2017 ◽  
pp. 75-101
Author(s):  
Sandeep K. Shukla ◽  
Rashmi Choubey ◽  
A. K. Bajpai
Keyword(s):  
Environmental Cleanup

Ultrafast and highly capture of U(VI) by hierarchical mesoporous carbon

2020 ◽  
Vol 108 (9) ◽  
pp. 717-726 ◽  
Author(s):  
Han Guo ◽  
Ying Li ◽  
Huihui Wang ◽  
Ning Zhang ◽  
Alhadi Ishag ◽  
...  
Keyword(s):  
Mesoporous Carbon ◽  
Surface Complexation ◽  
Batch Adsorption ◽  
Layer Model ◽  
Environmental Cleanup ◽  
Triple Layer ◽  
High Efficient ◽  
Diffuse Layer Model ◽  
Capture Capacity ◽  
Inner Sphere Complexes

AbstractIn this study, the hierarchical mesoporous carbon (HMC) was synthesized by the hydrothermal method. The batch adsorption experiments showed that HMC exhibited the ultrafast equilibrium fate (80 % U(VI) capture efficiency within 5 min), high UO22+ capture capacity (210 mg/g, pH = 4.5) and well recyclability. The investigations of XPS techniques indicated the oxygen-containing functional groups were responsible for high efficient UO22+ adsorption. The pH-dependent adsorption was simulated by three surface complexation modellings, revealing that UO22+ adsorption on HMC was excellently fitted by triple layer model using two inner-sphere complexes (i. e. SOUO2+ and SOUO2(CO3)35− species) compared to constant capacitance model and diffuse layer model. These findings are crucial for expanding actual applications of HMC towards the removal of radionuclides under environmental cleanup.

Environmental Cleanup Objectives Standard Procedure (ECOSP)

1990 ◽  
pp. 245-252
Author(s):  
K. T. von der Trenck ◽  
P. Fuhrmann
Keyword(s):  
Standard Procedure ◽  
Environmental Cleanup

Biobased Technologies for Remediation: Green Technology for Environmental Cleanup

2021 ◽  
pp. 89-108
Author(s):  
Anubhuti Singh ◽  
Gurudatta Singh ◽  
Priyanka Singh ◽  
Virendra Kumar Mishra
Keyword(s):  
Green Technology ◽  
Environmental Cleanup

Field Decontamination and Triage in Chemical Emergencies

1987 ◽  
Vol 3 (1) ◽  
pp. 37-39
Author(s):  
Constance J. Doyle
Keyword(s):  
United States ◽  
Emergency Department ◽  
Environmental Protection Agency ◽  
Hazardous Materials ◽  
The United States ◽  
Protection Agency ◽  
Environmental Cleanup ◽  
Materials Handling ◽  
Toxic Materials ◽  
The U.S

Triage and rescue of casualties from accidents involving hazardous materials is a challenge for many emergency medical services (EMS) personnel. With very toxic materials, the untrained and unprepared rescuer may become a victim. In addition, few hospitals in the United States have decontamination units attached to their emergency departments and emergency department personnel may become exposed if the casualty is not decontaminated. Many environmental cleanup teams, including the U.S. Environmental Protection Agency (EPA) team, are well trained in materials handling but are not immediately available when a hazardous materials spill with personal injuries occurs.

Maximizing R&D investments in the Department of Energy's Environmental cleanup program

1995 ◽  
Vol 20 (3-4) ◽  
pp. 96-107 ◽  
Author(s):  
Joseph Paladino ◽  
Paul Longsworth
Keyword(s):  
Environmental Cleanup

Advanced Simulation Capability for Environmental Management (ASCEM)

2011 ◽  
Author(s):  
Paul Dixon ◽  
Mark Williamson ◽  
Mark Freshley ◽  
David Moulton ◽  
Ian Gorton ◽  
...  
Keyword(s):  
Environmental Management ◽  
The United States ◽  
Cementitious Materials ◽  
United States Department ◽  
Environmental Cleanup ◽  
Engineered Systems ◽  
The Cost ◽  
Contaminant Fate And Transport ◽  
Long Term Performance ◽  
Term Performance

The United States Department Energy (DOE) Office of Environmental Management (EM) determined that uniform application of advanced modeling in the subsurface could help reduce the cost and risks associated with its environmental cleanup mission. In response to this determination, the EM Office of Technology Innovation and Development (OTID), Groundwater and Soil Remediation (GW&S) began the program Advanced Simulation Capability for Environmental Management (ASCEM). ASCEM is a state-of-the-art scientific tool and approach for integrating data and scientific understanding to enable prediction of contaminant fate and transport in natural and engineered systems. This initiative supports the reduction of uncertainties and risks associated with EM’s environmental cleanup and closure programs through better understanding and quantifying the subsurface flow and contaminant transport behavior in complex geological systems. This involves the long-term performance of engineered components, including cementitious materials in nuclear waste disposal facilities that may be sources for future contamination of the subsurface. This paper describes the ASCEM tools and approach and the ASCEM programmatic accomplishments completed in 2010 including recent advances and technology transfer.

Accelerating environmental cleanup at DOE sites: Monitored natural attenuation/enhanced attenuation—A basis for a new paradigm

2005 ◽  
Vol 16 (2) ◽  
pp. 95-105 ◽  
Author(s):  
Claire H. Sink ◽  
Karen M. Adams ◽  
Brian B. Looney ◽  
Karen M. Vangelas ◽  
Norman H. Cutshall
Keyword(s):  
Natural Attenuation ◽  
New Paradigm ◽  
Environmental Cleanup ◽  
Monitored Natural Attenuation
Sign in / Sign up

Export Citation Format

Share Document