纤维素阴离子吸附剂制备及对水中砷的吸附性能
Nonferrous Metals Engineering（2015）
Abstract
基于生物吸附法快速、经济、环境友好等特性以及纤维素量大易得的特点,同时为顺应我国《生活饮用水卫生标准》(GB5749-2006)中砷含量0.01 mg/L的要求,选取麦糟作为吸附剂原料,采用NaOH预处理-环氧氯丙烷交联-三甲胺季胺化的改性方法制备三价砷(As(Ⅲ))阴离子吸附剂,确定最佳工艺参数.利用扫描电镜、表面酸碱特性等表征麦糟和阴离子吸附剂的结构特征和物理化学性质.静态吸附条件下考察阴离子吸附剂吸附As(Ⅲ)的影响因素和行为机理.与麦糟相比,阴离子吸附剂对As(Ⅲ)的去除率显著提高.
MoreKey words
environment science and engineering,arsenite,performance characterization,spent grains,preparation of anionic adsorbent
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