[1]吴义诚,曾锦涵,陈庆瑞.纳米A12O3–海藻酸钠联合固定化小球藻去除水中总磷[J].中国给水排水,2020,36(21):71-74.
　WU Yi-cheng,ZENG Jin-han,CHEN Qing-rui.Removal of Total Phosphorus by Nanometer Al2O3 and Sodium Alginate Jointly Immobilized Chlorella vulgaris[J].China Water & Wastewater,2020,36(21):71-74.
点击复制

纳米A12O3–海藻酸钠联合固定化小球藻去除水中总磷

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第36卷 期数: 2020年第21期 页码: 71-74 栏目: 出版日期: 2020-11-01
Title:
Removal of Total Phosphorus by Nanometer Al2O3 and Sodium Alginate Jointly Immobilized Chlorella vulgaris
作者:
吴义诚1，曾锦涵1，陈庆瑞2
(1.厦门理工学院环境科学与工程学院，福建厦门361024；2.博天环境集团股份有限公司，北京100011)
Author(s):
WU Yi-cheng1，ZENG Jin-han1，CHEN Qing-rui2
(1. School of Environmental Science and Engineering, Xiamen University of Technology, Xiamen 361024， China; 2. Botian Environment Group Co. Ltd., Beijing 100011, China)
关键词:
小球藻; 固定化; 纳米Al2O3; 海藻酸钠; 总磷
Keywords:
Chlorella vulgaris; immobilization; nanometer Al2O3; sodium alginate; total phosphorus
摘要:
针对以海藻酸钠为代表的传统固定化材料制备的微藻胶球传质性能较差，对水中总磷去除率低的问题，开发了纳米Al2O3-海藻酸钠联合固定化小球藻胶球，研究了初始总磷浓度、胶球粒径和粒数对联合固定化小球藻去除总磷的影响。结果表明：纳米Al2O3增加了固定化小球藻胶球的比表面积，促进了小球藻对水中总磷的去除，总磷去除率随着胶球加入量的增加和胶球粒径的减小而提高。纳米Al2O3-海藻酸钠联合固定化小球藻胶球的最优制备方案如下：将0.15 g纳米Al2O3加入到30 mL浓度为1.8%海藻酸钠溶液中，然后再加入小球藻至藻细胞密度为2×106 cell/mL，交联CaCl2浓度为1%。胶球重复使用3次时总磷去除率仍达到77.51%。
Abstract:
The microalgae immobilized bead prepared by traditional immobilized materials has the problem of poor mass transfer performance and low removal efficiency of total phosphorus in water. Nanometer Al2O3 and sodium alginate jointly immobilized Chlorella vulgaris was prepared, and the effects of initial total phosphorus concentration, bead size and number on removal of total phosphorus in water were explored. The nanometer Al2O3 increased the specific surface area of the immobilized Chlorella vulgaris bead and promoted its removal efficiency of total phosphorus, and the removal efficiency of total phosphorus increased with the increase of the dosage of jointly immobilized Chlorella vulgaris and the decrease of particle size. The optimum conditions for beads preparation were as follows: 0.15 g nanometer Al2O3 was added to 30 mL sodium alginate solution with a concentration of 1.8%, then Chlorella vulgaris was added with algae cell density of 2×106 cell/mL, and cross-linking agent (CaCl2) concentration was 1%. The removal efficiency of total phosphorus could still reach 77.51% after the jointly immobilized Chlorella vulgaris beads being reused for three times．

相似文献/References:

[1]张鸿郭,钟铿锵,林洁松,等.内聚营养源固定化SRB去除硫酸盐和铬的研究[J].中国给水排水,2018,34(21):42.
　ZHANG Hong guo,ZHONG Keng qiang,LIN Jie song,et al.Effect of Internal Nutrient Sources and Mechanism of Chromium and Sulfate Removal by Immobilized SRB[J].China Water & Wastewater,2018,34(21):42.

更新日期/Last Update: 2020-11-01