Modeling of solute transport with bioremediation processes using sawdust as a matrix

Osama Eljamal, Kenji Jinno, Tosao Hosokawa

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A conceptual model of solute transport with bioremediation processes using sawdust as a matrix to improve the efficiency of bioremediation in porous media is presented. The transport part of the model solves the advection dispersion differential equations and the reaction part describes the heterotrophic metabolisms of several groups of bacteria. The bacterial growth is formulated using the double Monod kinetic equation. The model depicts the utilization of oxygen, nitrate, manganese, iron oxides and sulfate as electron acceptors for oxidation of organic carbon in porous media. Exchange between the different phases (mobile pore water phase, bio phase and matrix phase) is also considered in this model. Model parameters were adopted from literature on bioremediation processes. Feasibility and applicability of parameters were assessed by conducting a laboratory soil-sawdust columns experiments and comparing the simulated results with the experimental data. The results indicate that sawdust could be employed as low-cost materials to enhance the bioremediation processes in porous media. While the availability of organic carbon is one of the most important factors that affect bacterial activity in porous media, this study demonstrates that using sawdust as a carbon source can improve the bacterial activity and increase the column permeability.

Original languageEnglish
Pages (from-to)115-127
Number of pages13
JournalWater, Air, and Soil Pollution
Volume195
Issue number1-4
DOIs
Publication statusPublished - Nov 1 2008

Fingerprint

Solute transport
Sawdust
Bioremediation
solute transport
bioremediation
Porous materials
porous medium
matrix
modeling
Organic carbon
microbial activity
organic carbon
Advection
Manganese
Iron oxides
Metabolism
Nitrates
iron oxide
Sulfates
manganese

All Science Journal Classification (ASJC) codes

  • Ecological Modelling
  • Environmental Chemistry
  • Environmental Engineering
  • Pollution
  • Water Science and Technology

Cite this

Modeling of solute transport with bioremediation processes using sawdust as a matrix. / Eljamal, Osama; Jinno, Kenji; Hosokawa, Tosao.

In: Water, Air, and Soil Pollution, Vol. 195, No. 1-4, 01.11.2008, p. 115-127.

Research output: Contribution to journalArticle

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