Treating Methyl Orange in a Two-Dimensional Flow Tank by In Situ Chemical Oxidation Using Slow-Release Persulfate Activated with Zero-Valent Iron

2015 ◽  
Vol 32 (12) ◽  
pp. 1007-1015 ◽  
Author(s):  
Chanat Chokejaroenrat ◽  
Chainarong Sakulthaew ◽  
Tunlawit Satapanajaru ◽  
Thanakorn Tikhamram ◽  
Alongkon Pho-Ong ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Slow Release ◽  
Chemical Oxidation ◽  
Zero Valent Iron ◽  
Two Dimensional ◽  
In Situ Chemical Oxidation ◽  
Dimensional Flow ◽  
Two Dimensional Flow

Measurement of NAPL–water interfacial areas and mass transfer rates in two-dimensional flow cell

2016 ◽  
Vol 74 (9) ◽  
pp. 2145-2151 ◽  
Author(s):  
Muzi Li ◽  
Yuanzheng Zhai ◽  
Li Wan
Keyword(s):  
Mass Transfer ◽  
Interfacial Area ◽  
Chemical Oxidation ◽  
Flow Cell ◽  
Two Dimensional ◽  
Transfer Rates ◽  
Dimensional Flow ◽  
Interfacial Areas ◽  
Two Dimensional Flow

The nonaqueous-phase liquid (NAPL)–water interfacial area and the mass transfer rate across the NAPL and water interface are often key factors in in situ groundwater pollution treatment. In this study, the NAPL–water interfacial area and residual NAPL saturation were measured using interfacial and partitioning tracer tests in a two-dimensional flow cell. The results were compared with previous column and field experiment results. In addition, the mass transfer rates at various NAPL–water interfacial areas were investigated. Fe2+-activated persulfate was used for in situ chemical oxidation remediation to remove NAPL gradually. The results showed that the reduction of NAPL–water interfacial areas as well as NAPL saturation by chemical oxidation caused a linear decrease in the interphase mass transfer rates (R2 = 0.97), revealing the relationship between mass transfer rates and interfacial areas in a two-dimensional system. The NAPL oxidation rates decreased with the reduction of interfacial areas, owing to the control of NAPL mass transfer into the aqueous phase.

Slow-release permanganate versus unactivated persulfate for long-term in situ chemical oxidation of 1,4-dioxane and chlorinated solvents

Chemosphere ◽  
2019 ◽  
Vol 221 ◽  
pp. 802-811 ◽  
Author(s):  
Patrick J. Evans ◽  
Pamela Dugan ◽  
Dung Nguyen ◽  
Michael Lamar ◽  
Michelle Crimi
Keyword(s):  
Slow Release ◽  
Chlorinated Solvents ◽  
Chemical Oxidation ◽  
In Situ Chemical Oxidation

Two-Dimensional Flow of Polymer Solutions Through Porous Media

1999 ◽  
Vol 2 (3) ◽  
pp. 251-262
Author(s):  
P. Gestoso ◽  
A. J. Muller ◽  
A. E. Saez
Keyword(s):  
Porous Media ◽  
Polymer Solutions ◽  
Two Dimensional ◽  
Dimensional Flow ◽  
Two Dimensional Flow

STUDY OF NON-ISOTHERMAL TWO-DIMENSIONAL FLOW OVER A SQUARE CYLINDER IMMERSED IN A CHANNEL

2019 ◽  
Author(s):  
Gabriel Machado dos Santos ◽  
Ítalo Augusto Magalhães de Ávila ◽  
Hélio Ribeiro Neto ◽  
João Marcelo Vedovoto
Keyword(s):  
Two Dimensional ◽  
Square Cylinder ◽  
Dimensional Flow ◽  
Two Dimensional Flow
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