Screening of the dominant Chlorella pyrenoidosa for biofilm attached culture and feed production while treating swine wastewater

被引：57

作者：

Cheng, Pengfei ^{[1
,2
,3
,4
]}

Chu, Ruirui ^{[1
]}

Zhang, Xuezhi ^{[5
]}

Song, Lirong ^{[5
]}

Chen, Dongjie ^{[2
,3
]}

Zhou, Chengxu ^{[1
]}

Yan, Xiaojun ^{[6
]}

Cheng, Jay J. ^{[7
]}

Ruan, Roger ^{[2
,3
]}

机构：

[1] Ningbo Univ, Coll Food & Pharmaceut Sci, Ningbo 315211, Zhejiang, Peoples R China

[2] Univ Minnesota, Ctr Biorefining, St Paul, MN 55108 USA

[3] Univ Minnesota, Dept Bioprod & Biosyst Engn, St Paul, MN 55108 USA

[4] Wuhan Univ, Sch Water Resources & Hydropower Engn, Wuhan 430072, Peoples R China

[5] Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China

[6] Ningbo Univ, Key Lab Marine Biotechnol Zhejiang Prov, Ningbo 315211, Zhejiang, Peoples R China

[7] North Carolina State Univ, Dept Biol & Agr Engn, Raleigh, NC 27695 USA

来源：

BIORESOURCE TECHNOLOGY | 2020年 / 318卷

基金：

中国博士后科学基金;

关键词：

Chlorella pyrenoidosa; Biofilm attached culture; Anaerobically digested swine wastewater; Nutritional components; Essential amino acid; Feed addition; NUTRIENT REMOVAL; MICROALGAL CULTIVATION; COELASTRELLA SP; VULGARIS; GROWTH; NITROGEN; BIOMASS; BACTERIA; BIOFUEL;

D O I：

10.1016/j.biortech.2020.124054

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

This research 12 microalgal species were screened for biofilm attached culture in the treatment of anaerobically digested swine wastewater (ADSW). The influence of ADSW on biomass productivity and removal efficiencies were evaluated using biofilm attached culture with the selected Chlorella pyrenoidosa. The variation of nutritional components from algal cells were further analysed to evaluate the potential applications of C. pyrenoidosa. The results showed that C. pyrenoidosa had the highest tolerance to ADSW, and the highest removal efficiencies for wastewater pollutants were reached when cultured in 5 times diluted ADSW. These test conditions resulted in an algal cell biomass composed of 57.30% proteins, 14.87% extracellular polysaccharide, 3.08% crude fibre, 5.57% crude ash, 2.85% moisture. Amino acids in proteins contained 21.73% essential amino acids and the EAA/NEAA value was 0.64. The essential amino acid score indicates that the selected C. pyrenoidosa could be a good protein source for feed addition.

引用

页数：9

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