Simultaneous Removal of Some Pesticides from Aqueous Solution by Using Submerged Aquatic Plant (Nasturtium officinale)

Yıl 2016, Cilt: 6 Sayı: 2/2, 174 - 187, 28.12.2016

Veysi Okumuş Kadir Serdar Çelik Sadin Özdemir Abdurrahman Dündar Ahmet Onay Ersin Kılınç

Öz

In this study, the potential biosorption characteristics of the submerged aquatic plant Nasturtium
officinale was investigated for the removal of the chlorophenoxy acid derivates, namely, 2,4-
dichlorophenoxy acetic acid (2,4-D), 2,4-dichlorophenoxy propanoic acid (2,4-DP) and 2,4-
dichlorophenoxy butyric acid (2,4-DB). The experiments were performed as simultaneous biosorption of
the studied pesticides. Optimum biosorption conditions were determined as a function of pH, contact time
and initial pesticidec concentrations. The concentrations of the pesticides in the remaining solutions after
biosorption were simultaneously analyzed by high performance thin layer chromatography (HPTLC). The
experimental adsorption data were fitted both the Langmuir and Freundlich adsorption models to describe
the biosorption isotherm of the pesticides by aquatic plant Nasturtium officinale used as biomass. The
highest pesticide uptake was calculated from Langmuir isotherm and found to be 11.24 mg g-1
for 2,4-DP

Anahtar Kelimeler

Pesticides, biosorption, HPTLC , Nasturtium officinale