Open AccessUse of Biomass for Removal of Arsenic Compounds
Author(s) -
Linda Ansone,
Māris Kļaviņš,
Artis Robalds,
Artūrs Vīksna
Publication year - 2012
Publication title -
latvian journal of chemistry/latvijas ķīmijas žurnāls
Language(s) - English
Resource type - Journals
eISSN - 2199-6148
pISSN - 0868-8249
DOI - 10.2478/v10161-012-0018-7
Subject(s) - arsenic , arsenate , sorption , peat , environmental chemistry , chemistry , raw material , straw , environmentally friendly , waste management , environmental science , inorganic chemistry , organic chemistry , adsorption , ecology , engineering , biology
Water contamination with arsenic compounds is a serious problem. One of the solutions is to develop new sorbents based on natural materials that would be cost-effective and environmentally friendly. New sorbents based on biomaterial impregnation with iron oxyhydroxides have been developed. Raw peat material, iron modified-peat, sand, iron modifiedbiomass (shingles, straw) were used for removal of arsenic compounds. The highest sorption capacity was observed for iron modified-peat. Kinetic studies indicated that most of arsenates were removed within 2 hours, and arsenate sorption on iron modified-peat was characterized by the pseudo-second order rate law.