CAJ | 학술논문

以氯化镁和造纸草浆黑液为原料,采用物理活化法制得"氧化镁/活性炭"新型吸附剂,其比表面积(BET)为388.96 m~2/g、总孔容积为0.40 mL/g.测定了这种吸附剂对水中Cr(VI)的吸附性能,考察了吸附时间、pH值、吸附剂投加量、初始浓度等因素对Cr(VI)的吸附量和脱除率的影响,研究所得吸附水溶液中Cr(VI)的最佳条件为:吸附时间为120rain,吸附剂投加量为2 g/L,pH值为2."氧化镁/活性炭"新型吸附剂对Cr(VI)的吸附过程符合Freundlich等温式.
이록화미화조지초장흑액위원료,채용물리활화법제득"양화미/활성탄"신형흡부제,기비표면적(BET)위388.96 m~2/g、총공용적위0.40 mL/g.측정료저충흡부제대수중Cr(VI)적흡부성능,고찰료흡부시간、pH치、흡부제투가량、초시농도등인소대Cr(VI)적흡부량화탈제솔적영향,연구소득흡부수용액중Cr(VI)적최가조건위:흡부시간위120rain,흡부제투가량위2 g/L,pH치위2."양화미/활성탄"신형흡부제대Cr(VI)적흡부과정부합Freundlich등온식.
A noval adsorbent from straw pulp black liquor and magnesia chloride was made by physical ac-tivation. The results show that the BET surface and total pore volume reach 388.96 m~2/g and O. 40 mL/g respec-tively. The effects of adsorption time,pH,adsorbent dosage and initial concentration were investigated. The best absorption effect was acquired at pH value 2,adsorbent dosage 2 g/L,adsorption time 120 min. The adsorption of Cr(Ⅳ) follows Freundlich isotherm.