Denitrification of secondary wastewater using sawdust

Osama Eljamal, Kenji Jinno, Tosao Hosokawa

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This contribution is devoted to the use of sawdust as materials to improve the efficiency of removing nitrate from the secondary wastewater. Sawdust, a relatively abundant and inexpensive material is being investigated as a porous treatment media to enhance removal of contaminants from wastewater. Successful nitrate removal from secondary wastewater has been demonstrated in a laboratory experiment using columns filled with porous soil material and sawdust and/or bamboo chip served as an organic carbon source. While the availability of organic carbon is one of the most important factors that affects denitrifying activity in soil. A mathematical solute transport model was developed to predict the nitrate degradation processes through a natural filter. The model computes changes in concentration over time caused by the processes of advection, dispersion and biological reactions. Results from a laboratory soil-sawdust and soil-bamboo chip columns experiments were used to verify the simulation results of the model. This study demonstrated that denitrification using sawdust as a carbon source can effectively remove nitrate from secondary wastewater when the carbon source is limiting in the influent secondary wastewater or groundwater.

Original languageEnglish
Pages (from-to)115-128
Number of pages14
JournalMemoirs of the Faculty of Engineering, Kyushu University
Volume66
Issue number2
Publication statusPublished - Aug 14 2006

Fingerprint

Sawdust
Denitrification
denitrification
Wastewater
Nitrates
wastewater
nitrate
Soils
Bamboo
bamboo
Organic carbon
Carbon
soil
organic carbon
Solute transport
carbon
Advection
solute transport
Groundwater
advection

All Science Journal Classification (ASJC) codes

  • Energy(all)
  • Atmospheric Science
  • Earth and Planetary Sciences(all)
  • Management of Technology and Innovation

Cite this

Denitrification of secondary wastewater using sawdust. / Eljamal, Osama; Jinno, Kenji; Hosokawa, Tosao.

In: Memoirs of the Faculty of Engineering, Kyushu University, Vol. 66, No. 2, 14.08.2006, p. 115-128.

Research output: Contribution to journalArticle

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