| Abstract:Flocculation process was used to remove the silicate in green liquor from bamboo pulping chemical recovery. The chose of flocculant, the process parameters of flocculation was described. It was found that the Na-bentonite-CPAM-calcium oxide motified with aluminum salt had an efficient effect on silicate removal, the maximum removal rate reached to 99.9%. The optimum operating conditions were: the dosage of the aluminum salt modified Na-bentonite was 26 g/L, the dosage of CPAM was 15 mL/L, the calcium oxide was 15 g/L, stirring time was 10 min, clarification time was 5 min. Finally the process for commercial application was confinmed. |
