孔雀绿褪色光度法研究麦壳对 SDBS 的吸附性能

摘要

Using wheat shell as biological adsorbent,the adsorption effect of sodium dodecylbenzene sulfon-ate(SDBS)was studied.Results showed that,wheat shell could effectively adsorb SDBS rapidly,it took about 40 min to reach the equilibrium;the adsorption quantity increased when increasing the initial concentration of SD-BS,while decreased when increasing the dosage of adsorbent;good adsorption effect was obtained when the pH value of SDBS solution was in the range of 5~8;increasing temperature was good for the adsorption.The ad-sorption behavior of wheat shell to SDBS was consistent with Langmuir model.%采用麦壳为生物吸附剂，研究其对十二烷基苯磺酸钠（SDBS）的吸附作用。结果表明：麦壳能迅速有效地吸附 SDBS，40 min 基本达到平衡；增大 SDBS 的初始浓度，吸附量随之增大；增加吸附剂的用量，吸附量随之减小；SDBS 溶液 pH 值在5～8范围内，吸附效果较好；升高温度对吸附有利；麦壳对 SDBS 的吸附符合 Langmuir 等温模型。