Treatment of low C/N ratio wastewater and biomass production using co-culture of Chlorella vulgaris and activated sludge in a batch photobioreactor

被引：97

作者：

Zhu, Shunni ^{[1
,2
,3
]}

Qin, Lei ^{[1
,2
,3
]}

Feng, Pingzhong ^{[1
,2
,3
]}

Shang, Changhua ^{[1
,2
,3
]}

Wang, Zhongming ^{[1
,2
,3
]}

Yuan, Zhenhong ^{[1
,2
,3
]}

机构：

[1] Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China

[2] Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China

[3] Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2019年 / 274卷

关键词：

Microalgae; Activated sludge; Co-culture system; Nutrient recovery; Biomass valorization; NITROGEN REMOVAL; BACTERIAL CONSORTIUM; FATTY-ACIDS; PHOSPHORUS; AMMONIA; ALGAE; MICROALGAE; POND; ACCUMULATION; STARVATION;

D O I：

10.1016/j.biortech.2018.10.034

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The aim of this work was to study the performance of pollutants removal and biomass production by co-culture of Chlorella vulgaris and activated sludge in a batch photobioreactor (PBR), compared with their single system to treat a low C/N ratio (COD/N = 4.3) wastewater. The co-culture system surpassed activated sludge system in terms of nutrients removal and outperformed microalgae alone system in regard to COD removal. Biomass productivity of the co-culture system was 343.3 mg L-1 d(-1), and the harvested biomass could be developed as biofuels, animal feeds or soil conditioners due to the improved calorific value and cellular composition compared with activated sludge. The low C/N ratio wastewater enabled bacteria to maintain a relatively low level, hence in favor of microalgae enrichment and nutrient recovery.

引用

页码：313 / 320

页数：8

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