OPTIMASI TANAH NAPA SEBAGAI ADSORBEN ION LOGAM Cd (II)
Abstract: The effort of
handing waste which containing heavy metals examined continuesly, once of
effort is adsorption method. In the research, examined about optimum condition
determinating of metal ion Cd (II) adsorption by Napa soil adsorption from
Solok The Aripan’s area. The napa containts silica 70,979 % and alumina 20,748
%, the amount of silica and alumina in napa almost equals it’s concentration
with natural zeolite. The purpose of research is to determine the effect of
napa maximum adsorption capacity on metal ions Cd (II), as well as the effect
of initial concentration solution, pH solution, particle size of adsorbent,
heating temperature adsorbent and flow rate eluent. The research was conducted
in two phases, that is the preparation and conduct of the examined. The
preparation stage includes the prepare of the tools, materials and samples. The
implementation stage begins with a preparation of samples, then used it as the
metal ion adsorbents Cd (II). Measurement of the ions Cd (II) concentration
conducted with SSA at wavelength 283,3 nm. These results indicate that the
optimum initial concentration is 150 mg/L, pH solution is 4, while the particle
size is 850 ʮm, temperature of heating the adsorbent is 125 0C, and the flow
rate is 20 drops/minute. By using the langmuir adsorption isotherm equation
obtained maximum adsorption capacity of the napa metal ions Cd (II) is equal to
0,999 mg/g. The adsorption of metal ions Cd (II) at waste water in Chemical
Laboratory Mathematic and saint Faculty UNP has adsorption efficiency 68,72 %.
Penulis Atina Khairat, Mawardi
Mawardi, Hary Sanjaya
Kode Jurnal: jpkimiadd130520
