Dear Mohamed,

There are not many documents on the subject. But I am enclosing a very interesting thesis, through the following link, which perfectly answers your question. It deals with numerical modelling of constructed wetlands for wastewater treatment.

http://gemma.upc.edu/images/downloads/thesis/TRSC1de1.pdf

With my best regards

Prof. Bachir ACHOUR

Please check the PDF attachments. Contact the following researchgate member for help.

https://www.researchgate.net/profile/Roger_Samso

Very useful as suggested by Prof. Bachir and Prof. Arvind Singh.

Sorry. I can´t contribute to your investigation. I don´t investigate this issue.

Please check saeed and sun 2011: bioresource technology and water research.

For subsurface flow wetlands you may look for publications by Guenter Langergraber  BOKU Vienna (for Vertical Flow) or by Joan Garcia, Polytecnica Barcelona (for Horizontal Flow). Don't' have the time to search and attach. Sorry.

Thanks Tanveer Saeed and Ulrich Dittmer

Dear researcher

You can use some parts of this paper for C and N2 removal in your research.

Best wishes

A_pilot-scale_study_for_modeling_a_free_water_surf.pdf

I am enclosing our recently published work on the said topic. Hope it will be useful to you

Best wishes

Dr CS