K_(2)FeO_(4)改性稻草秸秆对Cd^(2+)的吸附性能研究  

Research on Absorption of Cd^(2+) by K_(2)FeO_(4)-modified Rice Straw

作　　者：黄慧珍[1,2] HUANG Hui-zhen(Department of Food and Biology Engineering,Zhangzhou Institute of Technology,Zhangzhou 363000,China;Applied Technical Engineering Center of Fujian University for Further Processing and Safety ofAgricultural Products,Zhangzhou 363000,China)

机构地区：[1]漳州职业技术学院食品与生物工程学院,福建漳州363000 [2]农产品深加工及安全福建省高校应用技术工程中心,福建漳州363000

出　　处：《长春师范大学学报》2021年第8期91-94,132,共5页Journal of Changchun Normal University

基　　金：漳州市食品产业技术科研项目“改性稻草秸秆对废水中镉的吸附性能研究”(ZSY2020103)。

摘　　要：采用强氧化性K 2FeO 4改性稻草秸秆(LCPE)原有的结构,增加其孔隙度及表面积,并将改性后的LCPF应用在模拟Cd^(2+)污染工业中,从中探讨LCPF改性剂浓度、时间、温度等对Cd^(2+)吸附性能的影响。结果表明,LCPF对水中的Cd^(2+)废水吸附效果好,大大增加普通生物炭的吸附性能。在LCPF含量为0.05 mg/mL,Cd^(2+)质量浓度为120 mg/L,温度为20℃、pH为6时,振荡40 min的条件下,去除效率最高。The rice straws were modified by strong oxidizing K 2FeO 4 to increase their porosity and superficial area.And then the modified LCPF was utilized to solve Cd^(2+) pollution.In this article,the effect of modified LCPF concentration,time and temperature on Cd^(2+) absorption were discussed.The results have shown that LCPF have a good absorption of Cd^(2+) from waster water.The results showed that the removal effect of Cd^(2+) was the best under the conditions that adsorbent dosage was 0.05 mg/mL,the Cd^(2+) concentration was 120 mg/L,temperature was 20℃,pH was 6 and adsorption time was 40 min.

关 键 词：改性 稻草秸秆 吸附性能 金属镉 

分 类 号：TQ91[化学工程] X712[环境科学与工程—环境工程]