scholarly journals Evaluating the potential for quantitative monitoring of in situ chemical oxidation of aqueous‐phase TCE using in‐phase and quadrature electrical conductivity

2015 ◽  
Vol 51 (7) ◽  
pp. 5239-5259 ◽  
Author(s):  
R. D. Hort ◽  
A. Revil ◽  
J. Munakata‐Marr ◽  
D. Mao
Keyword(s):  
Electrical Conductivity ◽  
Aqueous Phase ◽  
Chemical Oxidation ◽  
In Situ Chemical Oxidation ◽  
Quantitative Monitoring

Phased Implementation of In Situ Chemical Oxidation for a Large TCE DNAPL Source Area at the Portsmouth Gaseous Diffusion Plant, USA

2007 ◽  
Author(s):  
Paul E. Cross ◽  
Del Baird
Keyword(s):  
Phase I ◽  
Aqueous Phase ◽  
Source Area ◽  
Chemical Oxidation ◽  
Department Of Energy ◽  
Transient Effects ◽  
Gaseous Diffusion ◽  
In Situ Chemical Oxidation ◽  
Push Technology

This paper describes the In Situ Chemical Oxidation (ISCO) remediation being implemented for the X-701B groundwater plume at the Department of Energy (DOE) Portsmouth Gaseous Diffusion Plant (PORTS). Modified Fenton’s reagent is the principal oxidant for the remedy, and Direct Push Technology (DPT) is being used for delivery of the oxidant. Trichloroethene (TCE) is the primary contaminant of concern and is present within the unit as a dense non-aqueous phase liquid (DNAPL). A phased approach is being implemented to optimize the type, location, and mass of the oxidant injections. During Phase I, a unique near-real time monitoring approach was utilized to observe the transient effects of the oxidant injections on the formation. As a result of the positive results from Phase I, Ohio EPA has approved the final work plan for the remedy, and the approach is now being applied to the source area of the plume. The results from Phase I and the layout for the first series of Phase II injections are presented in this paper. Previous testing at the site has shown that the shallow, water-bearing formation is primarily composed of silty gravel and clay, and is both heterogeneous and anisotropic. These factors have significantly compromised earlier attempts to remediate the unit. A patented ISCO process from In-Situ Oxidative Technologies, Inc. (ISOTEC) was selected for the remediation of the plume. Phase I results indicate that oxidant delivery via DPT is feasible for the unit. Contaminant reduction to date has been minimal due to the small quantity of oxidant injected during Phase I. Contaminant rebound in the aqueous phase remains a concern and will be monitored closely during the remedy.

In-situ chemical oxidation: peroxide or persulfate coupled with membrane technology for wastewater treatment

2021 ◽  
Author(s):  
Huchuan Yan ◽  
Cui Lai ◽  
Dongbo Wang ◽  
Shiyu Liu ◽  
Xiaopei Li ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Organic Pollutants ◽  
Health And Safety ◽  
Chemical Oxidation ◽  
Membrane Technology ◽  
In Situ Chemical Oxidation ◽  
Refractory Organic Pollutants

Refractory organic pollutants in wastewater have the characteristics of persistence and toxicity, which seriously threaten the health and safety of humans and other organisms. Many researchers have committed to developing...

scholarly journals Decontamination of dense nonaqueous-phase liquids in groundwater using pump-and-treat and in situ chemical oxidation processes: a field test

RSC Advances ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 4237-4246
Author(s):  
Tian Xie ◽  
Zhi Dang ◽  
Jian Zhang ◽  
Qian Zhang ◽  
Rong-Hai Zhang ◽  
...  
Keyword(s):  
Field Test ◽  
Chemical Oxidation ◽  
Nonaqueous Phase Liquids ◽  
Dense Nonaqueous Phase Liquids ◽  
In Situ Chemical Oxidation ◽  
Oxidation Processes ◽  
Pump And Treat

The combination of pump-and-treat and in situ chemical oxidation processes can effectively accelerate the remediation of DNAPL pollutant in groundwater.

Comparison of the effectiveness of soil heating prior or during in situ chemical oxidation (ISCO) of aged PAH-contaminated soils

2017 ◽  
Vol 24 (12) ◽  
pp. 11265-11278 ◽  
Author(s):  
Bérénice Ranc ◽  
Pierre Faure ◽  
Véronique Croze ◽  
Catherine Lorgeoux ◽  
Marie-Odile Simonnot
Keyword(s):  
Contaminated Soils ◽  
Chemical Oxidation ◽  
Soil Heating ◽  
In Situ Chemical Oxidation
Sign in / Sign up

Export Citation Format

Share Document