Succinate-modified Flax Seed Hydrogel for the Cobalt Remediation from Polluted Water for Public Health Concern

Abstract

An efficient adsorbent for removing Co (II) ions from polluted water was developed by esterification of mucilage from flax seeds. The esterified flax seed mucilage was neutralized to prepare its sodium salt (Na-FSM). To having good capacity for holding water, it was tested for its potential to remove Co (II) from aqueous solution. The effects of initial concentration of Co (II) ions, the Na-FSM dose, time to contact, temperature, and the pH was investigated through batch adsorption tests. The optimum conditions at which highest Co (II) removal was took place were: concentration of Co (II) ions = 100 mg/L, the Na-FSM dose = 30 mg/g, time to contact = 30 min, temperature = 298K, and the pH= 6. Hence, at these conditions it could be best to established adsorption isotherm and adsorption kinetics.