Rice husk biochar, could be used as an effective adsorbent for removal of Nitrates from groundwater and its adsorbance could be enhanced by treating the rice husk directly or its biochar by some easily available and cost effective chemical
These articles may be useful: http://www.imedpub.com/articles/to-evaluate-the-efficiency-of-char-and-biochar-for-waste-water-treatment.pdf
To Evaluate the Efficiency of Char and Biochar for Waste Water Treatment
http://jjhres.com/en/articles/21815.html
Removal of Nitrate From Aqueous Solution Using Rice Chaff
DearTariq
After the treatment of char or biochar its efficieny will surely increased. The selection of chemical to treat the biochar depends on the property of biochar. if incresing basic strength will increase the efficiency then the chemical should be basic nature as (Hydroxides of Na and K) and if increasing acidic strength will increase the efficiency the the chemical should be atrong acid. the attached article will also help you....
Please Refer :
Mohammad Hassan Shahmoradi and others 2015. Removal of nitrate from ground water using activated carbon prepared from rice husk .....treatment. ARPN Journal of Engineering and Applied sciences, volume. 10, No.17.September 2015.
Interesting approach... I normally think on Ion Exchange nitrate selective resins / adsorbents or reverse osmosis for industrial applications, waste is always discussed up front as customer needs to recirculate some effluents, specially to cooling towers, or use evaporation ponds... nitrate removal using plants is desirable but space is more than available sometimes
in industrial applications... can you comment if with this biochar aproach will be a single use or if it can be reactivated? Great success in your research
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