Notice of RetractionAdsorption of Cu²+ from Aqueous Solution by Anaerobic Granular Sludge
Anaerobic granular sludge was used to remove Cu<sup>2+</sup> from aqueous solution. The results showed that anaerobic granular sludge biology absorbent processing including the Cu<sup>2+</sup> wastewater was feasible, the Cu<sup>2+</sup> elimination rate was achieved 97.67%. The best craft operating parameter of the anaerobic granular sludge biology absorbent processes Cu<sup>2+</sup> could be determined as follows: when the initial concentration of the Cu<sup>2+</sup> wastewater was 320mg/L, pH was 6.5, the temperature was 25°C±1, Adsorbent dosing quantitywas 5g, adsorption duration of oscillation was 60min. Ions Cu<sup>2+</sup>, Zn<sup>2+</sup>, Cd<sup>2+</sup> competitive adsorption existed between and mutual inhibition, and all inter-granular sludge adsorption of heavy metal ions had a negative impact.