Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title An evaluation of pristine lignin for hazardous waste treatment /
Author O'Neil, Daniel J.,
Other Authors
Author Title of a Work
Newman, C. J.
Chian, E. S. K.
Gao, H.
Publisher U.S. Environmental Protection Agency, Hazardous Waste Engineering Research Laboratory,
Year Published 1987
Report Number EPA/600-S2-87-037
OCLC Number 741699505
Subjects Hazardous wastes. ; Lignin.
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-S2-87-037 In Binder Headquarters Library/Washington,DC 01/29/2018
EJBD  EPA 600-S2-87-037 In Binder Headquarters Library/Washington,DC 11/06/2018
Collation 7, [1] pages : illustrations ; 328 cm
Caption tittle. "August 1987." At head of title: Project summary. "EPA/600-S2-87-037."
Contents Notes
"A feasibility study was conducted to assess the utilization of lignin, isolated from a steam-exploded hardwood (Tulip poplar) with 95% ethanol and 0.1N NaOH, as a potential adsorbent for hazardous waste treatment. Eight organic compounds and two heavy metals were selected to allow comparison of lignin isolates with activated carbon. Adsorption kinetic studies, adsorption size studies, and adsorption isotherms based on the Freundlich equation were completed. The lignin isolates were extensively characterized using instrumental and classical wet techniques. It was found that the adsorption capacity of lignin for heavy metals (chromium and lead) is comparable to activated carbon, despite a huge divergence in surface area (0.1 ma/g vs. 1000 mVg). The surface area discrepancy and the extensive aromatic substitution in lignin macromolecule impeded the achievement of an adsorption capacity of lignin for polar organic compounds, which would allow it to be cost-competitive with activated carbon, although results with phenol and, to a lesser degree, naphthalene indicate significant potential for achieving competitive capacities. A recommended plan for surface area and structural enhancement is presented on the basis that lignin can be developed as an effective and low-cost adsorbent for polar priority pollutants and/or as an ion-exchange resin for heavy metal wastewater cleanup."