ABSTRACT: The research about determination of kinetic
adsorption and desorption rate of paraquat on agriculture area Oesao-east
Kupang has been done. The aim of this research was to determine the kinetic of
paraquat adsorption before and after saturated and to model the desorption. The
research consisted of evaluation of the analitycal procedure for paraquat,
pattern of soil kinetic adsorption and paraquat desorption. The result of
procedure evaluation showed that reduced paraquat absorbed at λ maximum 606 nm
and relative stability at 0-150 minutes. Constant of paraquat kinetic
adsorption at natural state bigger than saturated state. k1 value at natural
state was 0,011 per minute whereas k1 value at saturated state was 0,003 per
minute. Desorption model of paraquat by using three desorbents were ammonium
chloride, 29,2% of sea water salinity and aquadest showed the best desorbent
was ammonium chloride, followed by sea water and aquadest.
Keywords: adsorption, desorption, paraquat
Penulis: Sherlly M.F. Ledoh, Hermania Em Wogo, Siti Arianti
S.A
Kode Jurnal: jpkimiadd100049
Artikel Terkait :
