Premium
Peat adsorption of herbicide 2,4‐D from wastewaters
Author(s) -
Cloutier JeanNoël,
Leduy Anh,
Ramalho Rubens S.
Publication year - 1985
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450630210
Subject(s) - adsorption , freundlich equation , volume (thermodynamics) , peat , chemistry , chromatography , particle size , wastewater , pulp and paper industry , environmental engineering , environmental science , organic chemistry , thermodynamics , ecology , physics , biology , engineering
The possibility of utilizing peat as adsorbent for removal of the pesticide 2,4‐D from contaminated wastewaters has been evaluated in this investigation. Batch tests were conducted at different conditions of initial solute concentration, pH, particle size of adsorbent, temperature and ratios of weight of adsorbent to solution volume, in order to determine the optimum range of these variables for the adsorption operation. Removal ratios for the 2,4‐D of the order of 90% were obtained under optimum conditions. The adsorption of 2,4‐D in peat is described adequately by the Freundlich isotherm. Continuous tests, utilizing adsorption columns, were then conducted in order to determine the design parameters for a proposed treatment plant. The column tests were adequately correlated by the Bohart‐Adams equation.