NaCS-PDMDAAC immobilized autotrophic cultivation of Chlorella sp for wastewater nitrogen and phosphate removal

被引：35

作者：

Zeng, Xianhai ^{[2
]}

Danquah, Michael K. ^{[1
]}

Zheng, Chao ^{[3
]}

Potumarthi, Ravichandra ^{[1
]}

Chen, Xiao Dong ^{[1
,2
]}

Lu, Yinghua ^{[2
]}

机构：

[1] Monash Univ, Dept Chem Engn, Clayton, Vic 3800, Australia

[2] Xiamen Univ, Dept Chem & Biochem Engn, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China

[3] Zhejiang Univ, Dept Chem & Biol Engn, Hangzhou 310027, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2012年 / 187卷

关键词：

NaCS-PDMDAAC; Immobilization; Microalgae; Wastewater treatment; PHOSPHORUS; NITRATE; CARRAGEENAN; CELLS;

D O I：

10.1016/j.cej.2012.01.119

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The unicellular green microalgae, Chlorella sp., entrapped in sodium cellulose sulphate/poly-dimethyl-diallyl-ammonium chloride (NaCS-PDMDAAC) to create microalgae capsules were used to remove total nitrogen (T-N) and phosphate (PO43--P) from artificial wastewater. Batch and semi-continuous cultivations with capsules recycling were carried out in shake flasks within an illuminated incubator. Experimental results showed that the NaCS-PDMDAAC capsules have desirable biophysical properties such as good mechanical stability, biocompatibility with the microalgae cells resulting in biomass enrichment within the capsules, and high substrate concentration tolerance. NaCS-PDMDAAC Chlorella sp. capsules displayed a considerable high T-N and PO43--P removal rate 12.56 aid 10.24 mg/g biomass per clay respectively. The developed immobilized microalgae system has the potential for continuous wastewater treatment operation with reduced downstream operation cost due to the large size of the capsules being 5-6 mm. (C) 2012 Elsevier E.V. All rights reserved.

引用

页码：185 / 192

页数：8

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