Removal of chromium (VI) heavy metal ions through biosorption using betel seeds from aqueous solution

<p>The reduction of highly toxic Cr (VI) from industrial wastewater low concentration by different low-cost ample sorbent materials was investigated. In order to remove aqueous solutions, the biosorption properties natural waste (Betel Seeds) were investigated with varying several parameters like contact period, dose, sorbate sorption, and pH. The study's biosorbent dosage, concentration, pH all varied 0 120 minutes, 12 g/l, 40 mg/l, 2 7, respectively. According study, chromium sorption betel seed powder reached equilibrium after 60 a small change in removal effectiveness then noticed (Gode, et.al., 2003). At 3 doses g/l 30 mg/l sorbate, maximum (99.2%) achieved. results revealed that chromium(VI) follows Langmuir isotherm comparison correlation factor 0.998. Additionally, process's kinetics adheres pseudo-second-order model, rate constant 0.721 min-1 evaluated at 30°C. Hexavalent water quantified using UV-VIS spectrophotometer. A desorption examination also carried out, it is vital 0.5H2SO4. Results indicate cheap, readily available, widely cultivated can be used effectively ions.</p>