Skip to Main Content
Biosorbents prepared from wood particles treated with anionic polymer and iron salt: Effect of particle size on phosphate adsorptionAuthor(s): Thomas L. Eberhardt; Soo-Hong Min
Source: Bioresource Technology Vol. 99 Issue 3, 2008 626?630
Publication Series: Miscellaneous Publication
PDF: Download Publication (196 KB)
DescriptionBiomass-based adsorbents have been widely studied as a cost-effective and environmentally-benign means to remove pollutants and nutrients from water. A two-stage treatment of aspen wood particles with solutions of carboxymethyl cellulose (CMC) and ferrous chloride afforded a biosorbent that was effective in removing phosphate from test solutions. FTIR spectroscopy of the biosorbent samples showed a decrease in the intensity of the carboxylate signal coinciding with a decrease in particle size. Elemental analysis results showed the iron content of both the biosorbent samples, and wood particles treated with ferrous chloride alone, to also decrease with particle size. The relationship between iron content and particle size for the biosorbent samples appeared to be a function of both the amount of CMC?Fe complex and the effciency of removing free iron ions after treating. Sorption testing results showed a strong linear correlation between the phosphorous uptake capacities and the iron contents of the samples adjusted for losses of iron during testing. As anticipated, pretreating with the anionic polymer provided additional sites to complex iron and thereby imparted a greater phosphorous uptake capacity. Although the larger wood particles provided a greater amount of iron for phosphate removal, smaller wood particles may be preferred since they afforded the lowest release of iron relative to the amount of phosphate removed.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationEberhardt, Thomas L.; Min, Soo-Hong. 2008. Biosorbents prepared from wood particles treated with anionic polymer and iron salt: Effect of particle size on phosphate adsorption. Bioresource Technology Vol. 99 Issue 3, 2008 626?630
KeywordsAdsorption, Biomass, Biosorbent, Carboxymethyl cellulose, Phosphate
- Polymer-treated woody biomass: a filtration medium for removing phosphate from water
- Phosphate removal by refined aspen wood fiber treated with carboxymethyl cellulose and ferrous chloride
- New Approach to Remove Metals from Chromated Copper Arsenate (CCA)-Treated Wood
XML: View XML