吉林大学学报(地球科学版) ›› 2022, Vol. 52 ›› Issue (6): 2014-2020.doi: 10.13278/j.cnki.jjuese.20210086

• 地质工程与环境工程 • 上一篇    下一篇

漆酶和生物炭固定化海藻酸铜球对亚甲基蓝染料的去除效果实验

朴云仙,刘再冉,张彧,李珂澜   

  1. 吉林大学新能源与环境学院/地下水资源与环境教育部重点实验室(吉林大学),长春130021
  • 收稿日期:2021-03-23 出版日期:2022-11-26 发布日期:2022-12-27
  • 基金资助:
    国家自然科学基金项目(51809111)

Experimental on Removal of Methylene Blue by Laccase and Biochar Encapsulated Copper Alginate Beads

Piao Yunxian, Liu Zairan, Zhang Yu, Li Kelan   

  1. College of New Energy and Environment,Jilin University/Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Changchun 130021, China
  • Received:2021-03-23 Online:2022-11-26 Published:2022-12-27
  • Supported by:
    the National Natural Science Foundation of China (51809111) 

摘要: 染料废水中存在着大量的亚甲基蓝污染物,本文以具有良好生物相容性的海藻酸铜(CA)为载体,采用包埋的形式制备漆酶和生物炭固定化海藻酸铜球(Lac-BCA),对亚甲基蓝染料进行去除研究,并探讨酶的加载特性与稳定性。实验结果表明:与游离漆酶相比,固定在CA上的漆酶在pH(3~7)和温度(10~80 ℃)工作范围内,具有更强的稳定性,其在4 ℃的条件下储存15 d,仍具有79.4%的活性;Lac-BCA对15 mg/L的亚甲基蓝在8 h的去除率达到了100.0%,且在重复利用5次后,该复合材料对亚甲基蓝的去除率稳定保持在93.4%;另外,由于高吸附性的生物炭以及漆酶的加入,相比于CA, Lac-BCA对15 mg/L 的亚甲基蓝溶液去除率从46%提升至100%。

关键词: 生物炭, 亚甲基蓝, 包埋, 漆酶

Abstract: In order to remove a large amount of methylene blue in water, copper alginate (CA), a good biocompatibility material, was used as the carrier to prepare laccase and biochar encapsulated copper alginate spheres (Lac-BCA) to remove methylene blue. The loading characteristics and stability of the laccase were also investigated. The experimental results showed that the Lac-BCA had a wider operating range of pH (3-7) and temperature (10-80 ℃) compared with the free laccase. The relative activity of Lac-BCA could still be 79.4% when stored at 4 ℃ for 15 d. The Lac-BCA could remove 100.0% methylene blue (15 mg/L) after 8 h, and 93.4% methylene blue could still be removed after five times of reuse. Moreover, due to the addition of highly adsorbent biochar, the removal efficiency of Lac-BCA on pollutants was increased from 46% to 100% compared with CA. 

Key words: biochar;methylene blue, encapsulating, laccase

中图分类号: 

  • X506
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