A MULTICOMPONENT REACTIVE TRANSPORT MODEL OF IN SITU REDOX MANIPULATION FOR REMEDIATION OF CHROMIUM CONTAMINATED GROUNDWATER

2017 ◽  
Author(s):  
Sachin Pandey ◽  
◽  
Satish Karra ◽  
Velimir Vesselinov
Keyword(s):  
Reactive Transport ◽  
Transport Model ◽  
Contaminated Groundwater ◽  
Reactive Transport Model ◽  
Multicomponent Reactive Transport

scholarly journals Coupling a genome-scale metabolic model with a reactive transport model to describe in situ uranium bioremediation

2009 ◽  
Vol 2 (2) ◽  
pp. 274-286 ◽  
Author(s):  
Timothy D. Scheibe ◽  
Radhakrishnan Mahadevan ◽  
Yilin Fang ◽  
Srinath Garg ◽  
Philip E. Long ◽  
...  
Keyword(s):  
Reactive Transport ◽  
Transport Model ◽  
Metabolic Model ◽  
Reactive Transport Model ◽  
A Genome ◽  
Genome Scale

Interactions of corrosion products and bentonite: An extended multicomponent reactive transport model

2011 ◽  
Vol 36 (17-18) ◽  
pp. 1661-1668 ◽  
Author(s):  
Chuanhe Lu ◽  
Javier Samper ◽  
Bertrand Fritz ◽  
Alain Clement ◽  
Luis Montenegro
Keyword(s):  
Reactive Transport ◽  
Transport Model ◽  
Corrosion Products ◽  
Reactive Transport Model ◽  
Multicomponent Reactive Transport

scholarly journals Leaching of trace metals (Pb, Zn) from contaminated tailings: a multicomponent reactive transport model of a pilot-scale experiment

2021 ◽  
Author(s):  
Samuel Mertz ◽  
Lydie Le Forestier ◽  
Hugues Thouin ◽  
Fabienne Battaglia-Brunet ◽  
Marie-Paule Norini ◽  
...  
Keyword(s):  
Trace Metals ◽  
Reactive Transport ◽  
Transport Model ◽  
Pilot Scale ◽  
Reactive Transport Model ◽  
Scale Experiment ◽  
Multicomponent Reactive Transport

scholarly journals Nonisothermal Multicomponent Reactive Transport Model for Unsaturated Soil

2011 ◽  
Vol 11 (2) ◽  
pp. 84-89 ◽  
Author(s):  
Suresh Channarayapatna Seetharam ◽  
Hywel Rhys Thomas ◽  
Philip James Vardon
Keyword(s):  
Unsaturated Soil ◽  
Reactive Transport ◽  
Transport Model ◽  
Reactive Transport Model ◽  
Multicomponent Reactive Transport

A single-site reactive transport model of Cs+ for the in situ diffusion and retention (DR) experiment

2015 ◽  
Vol 74 (4) ◽  
pp. 3589-3601 ◽  
Author(s):  
Shuping Yi ◽  
Javier Samper ◽  
Acacia Naves ◽  
Josep M. Soler
Keyword(s):  
Reactive Transport ◽  
Transport Model ◽  
Single Site ◽  
Reactive Transport Model ◽  
In Situ Diffusion

scholarly journals Vertical Distribution of Denitrification in an Estuarine Sediment: Integrating Sediment Flowthrough Reactor Experiments and Microprofiling via Reactive Transport Modeling

2006 ◽  
Vol 73 (1) ◽  
pp. 40-47 ◽  
Author(s):  
Anniet M. Laverman ◽  
Christof Meile ◽  
Philippe Van Cappellen ◽  
Elze B. A. Wieringa
Keyword(s):  
Vertical Distribution ◽  
Reactive Transport ◽  
Nitrate Uptake ◽  
Transport Model ◽  
Depth Interval ◽  
Overlying Water ◽  
Near Surface ◽  
Reactive Transport Model ◽  
Potential Rate

ABSTRACT Denitrifying activity in a sediment from the freshwater part of a polluted estuary in northwest Europe was quantified using two independent approaches. High-resolution N2O microprofiles were recorded in sediment cores to which acetylene was added to the overlying water and injected laterally into the sediment. The vertical distribution of the rate of denitrification supported by nitrate uptake from the overlying water was then derived from the time series N2O concentration profiles. The rates obtained for the core incubations were compared to the rates predicted by a forward reactive transport model, which included rate expression for denitrification calibrated with potential rate measurements obtained in flowthrough reactors containing undisturbed, 1-cm-thick sediment slices. The two approaches yielded comparable rate profiles, with a near-surface, 2- to 3-mm narrow zone of denitrification and maximum in situ rates on the order of 200 to 300 nmol cm−3 h−1. The maximum in situ rates were about twofold lower than the maximum potential rate for the 0- to 1-cm depth interval of the sediment, indicating that in situ denitrification was nitrate limited. The experimentally and model-derived rates of denitrification implied that there was nitrate uptake by the sediment at a rate that was on the order of 50 (± 10) nmol cm−2 h−1, which agreed well with direct nitrate flux measurements for core incubations. Reactive transport model calculations showed that benthic uptake of nitrate at the site is particularly sensitive to the nitrate concentration in the overlying water and the maximum potential rate of denitrification in the sediment.

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