Phytic acid sepiolite compound adsorbent on the adsorption of Cd~(2+) performance research of heavy metals

摘要

This paper studies the preparation of phytic acid with sepiolite compound phytic acid compound sepiolite adsorbent of heavy metals adsorption performance is good, and the adsorption of the optimum adsorption conditions was studied, the optimum adsorption conditions for adsorbent dosage 30 g/L, temperature 40°C, pH = 3, the adsorption equilibrium time 30 min, Cd~(6+), concentration is lower than 50 mg/L. China's excess emissions every year a large number of electroplating waste water containing Cd~(6+), Cd~(6+) toxicity is big and can teratogenic, mutagenic and carcinogenic. This research use phytic acid and sepiolite compound, preparation of phytic acid sepiolite compound adsorbent of heavy metals, and studied it.