Effect of Sorption Processes on Pump-and-Treat Remediation Practices Under Heterogeneous Conditions

2008 ◽  
pp. 153-164
Author(s):  
M. Riva ◽  
A. Guadagnini ◽  
X. Sanchez-Vila
Keyword(s):  
Pump And Treat

Application of Flow and Transport Optimization Codes to Groundwater Pump and Treat Systems- VOLUME 2

2004 ◽  
Author(s):  
Barbara Minsker ◽  
Yan Zhang ◽  
Robert Greenwald ◽  
Richard Peralta ◽  
Chunmiao Zheng
Keyword(s):  
Flow And Transport ◽  
Pump And Treat

Application of Flow and Transport Optimization Codes to Groundwater Pump and Treat Systems- Volume 1

2004 ◽  
Author(s):  
Barbara Minsker ◽  
Yan Zhang ◽  
Robert Greenwald ◽  
Richard Peralta ◽  
Chunmiao Zheng
Keyword(s):  
Flow And Transport ◽  
Pump And Treat

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.

In situ multiphase fluidization ("upflow washing") for the remediation of hydrocarbon contaminated sands

1998 ◽  
Vol 35 (6) ◽  
pp. 938-960 ◽  
Author(s):  
Robert K Niven ◽  
Nasser Khalili
Keyword(s):  
Theoretical Analysis ◽  
Contaminated Soils ◽  
Fixed Bed ◽  
Fine Sand ◽  
In Situ Remediation ◽  
Pump And Treat ◽  
Wide Range ◽  
Phase Liquid ◽  
Regime Map

A new in situ remediation method is described, "upflow washing," in which contaminants are flushed to the surface within an in situ fluidized zone produced by a jet inserted into a granular formation. The suitability of the method for LNAPL (light non-aqueous phase liquid) remediation is examined by experiments on diesel-contaminated soils within column and tank settings. The experiments indicate significant reductions in diesel levels (96-99.9%) may be achieved by fluidization with water and gas (gas-liquid upflow washing, GLUW) for a wide range of initial diesel concentrations (10 000 to 150 000 mg/kg) and for soil fines contents of 0 to at least 10%. Final diesel levels of <1000 mg/kg in a uniform fine sand and <200 mg/kg in clayey sands can be achieved. The efficiency is much higher than that of fixed bed flushing (simulated pump-and-treat), as the method overcomes the trapping of NAPL ganglia. Fludization with water alone (liquid upflow washing, LUW) is less effective than fixed bed flushing in the uniform sand, but approaches that of GLUW in clayey and silty sands. The results are explained by theoretical analysis of the removability of isolated NAPL droplets and mixed solid - NAPL particles from a fluidized bed due to buoyancy and elutriation, which may be represented using a "removability regime map" for the diesel-water-sand system.Key words: fluidization, in situ, remediation, NAPL, diesel.

DISCUSSION OF "Ground-Water Remediation Using Smart Pump and Treat, " by Fredric Hoffman

Ground Water ◽  
1993 ◽  
Vol 31 (4) ◽  
pp. 680-681 ◽  
Author(s):  
M. M. Aral ◽  
M. L. Maslia ◽  
R. C. Williams
Keyword(s):  
Ground Water ◽  
Water Remediation ◽  
Pump And Treat ◽  
Smart Pump
Sign in / Sign up

Export Citation Format

Share Document