CAJ | 학술논문

采用搅拌球磨机对木薯淀粉机械活化，以活化60 m in的木薯淀粉为原料，干法合成交联羧甲基淀粉吸附剂。考察了交联羧甲基淀粉的取代度、溶液pH、Pb2＋初始质量浓度、吸附时间、用量等因素对交联羧甲基淀粉吸附Pb2＋的影响。结果表明：交联羧甲基淀粉对 Pb2＋有很好的吸附作用；用取代度为0．763的交联羧甲基淀粉吸附溶液中的Pb2＋，在Pb2＋初始质量浓度40 mg/L、pH＝7．0、交联羧甲基淀粉用量0．10 g、吸附时间40 min条件下，吸附容量为18．6 mg/g ，吸附率为93．1％。
채용교반구마궤대목서정분궤계활화，이활화60 m in적목서정분위원료，간법합성교련최갑기정분흡부제。고찰료교련최갑기정분적취대도、용액pH、Pb2＋초시질량농도、흡부시간、용량등인소대교련최갑기정분흡부Pb2＋적영향。결과표명：교련최갑기정분대 Pb2＋유흔호적흡부작용；용취대도위0．763적교련최갑기정분흡부용액중적Pb2＋，재Pb2＋초시질량농도40 mg/L、pH＝7．0、교련최갑기정분용량0．10 g、흡부시간40 min조건하，흡부용량위18．6 mg/g ，흡부솔위93．1％。
The cross-linking carboxymethylstarch adsorbent was prepared by dry method using cassava starch ,mechanically activated for 60 min by a stirring-type ball mill ,as a starting material .The effects of substitution degree ( Ds ) of cross-linking carboxymethylstarch , solution pH , Pb2+ initial concentration ,adsorption time ,and the starch dosage on adsorption abilities of the cross-linking carboxymethylstarch for Pb2+ were investigated .The results indicate that the adsorption abilities of the cross-linking carboxymethylstarch for Pb2+ is good .T reated solution of containing Pb2+ by the cross-linking carboxymethylstarch (Ds =0 .763) ,the adsorption capacity for Pb2+ is 18 .6 mg/g ,and the adsorption rate for Pb2+ is 93 .1% ,w hen the dosage of the cross-linking carboxymethylstarch is 0 .10 g ,Pb2+ initial concentration is 40 mg/L ,solution pH is 7 .0 ,adsorption time is 40 min .