ANALISIS KEMAMPUAN OPTIMAL TANAMAN BUNGA MATAHARI MENDEGRADASI Pb DALAM TANAH MELALUI PROSES FITOREMEDIASI

Abstract

Lead Research carried out by ex situ techniques of contaminated soil that is moved into a place x 3 p.a. and 1 ml of HClO p.a. and shaking for ±24 hours. Then the extract was filtered and measured its levels of Pb using AAS. The concentration of Pb in the sample can be determined by substituting the absorbance value of samples into a linear equation Pb calibration curve. The highest Pb accumulation in sunflower found i n the root 4 weeks until age 12 weeks ..leaves more than 0.1% which amounted to 0.18%.