Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2018 Jul 15:630:1237-1245.
doi: 10.1016/j.scitotenv.2018.02.329. Epub 2018 Mar 7.

Investigation of rice husk derived activated carbon for removal of nitrate contamination from water

Aliya R Satayeva  1 , Carol A Howell  2 , Alina V Korobeinyk  3 , Jakpar Jandosov  4 , Vassilis J Inglezakis  1 , Zulkhair A Mansurov  4 , Sergey V Mikhalovsky  5
Affiliations
Free article

Investigation of rice husk derived activated carbon for removal of nitrate contamination from water

Aliya R Satayeva et al. Sci Total Environ. .
Free article

Abstract

Development of porous carbons with high specific surface area (>1200mg-1) targeted at nitrate removal from aqueous solutions is investigated by chemical activation of carbonized rice husk. Potassium carbonate is used as activating and desilicating agent. The effect of post-synthetic treatment by gas phase ammoxidation with ozone/ammonia or oxidation with concentrated nitric acid followed by nitrification with urea on main physicochemical properties and on the effectiveness of the activated carbons in nitrate removal is compared with those determined for a pristine activated carbonized rice husk sample. The two-fold enhancement of nitrate removal by the urea-modified activated carbon in comparison with pristine and ammoxidated sample is in direct correlation with the development of surface basic groups.

Keywords: Activated carbon; Biomass; Nitrate ions adsorption; Nitrogen functionalization; Rice husk carbonization; Surface modification.

PubMed Disclaimer

MeSH terms