Effect of wastewater-borne bacteria on algal growth and nutrients removal in wastewater-based algae cultivation system

被引：146

作者：

Ma, Xiaochen ^{[1
,2
,3
]}

Zhou, Wenguang ^{[1
,2
]}

Fu, Zongqiang ^{[1
,2
]}

Cheng, Yanling ^{[1
,2
]}

Min, Min ^{[1
,2
]}

Liu, Yuhuan ^{[1
,2
]}

Zhang, Yunkai ^{[1
,2
]}

Chen, Paul ^{[1
,2
]}

Ruan, Roger ^{[1
,2
]}

机构：

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

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

[3] Chinese Acad Sci, Inst Microbiol, Beijing 100101, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2014年 / 167卷

关键词：

Algal-bacteria cultivation system; Municipal wastewater; Algal inoculum concentration; Nutrient removal; Bacterial growth; COMPETITION; VULGARIS; BIOFUELS; STRAINS;

D O I：

10.1016/j.biortech.2014.05.087

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Centrate, a type of nutrient-rich municipal wastewater was used to determine the effect of wastewater-borne bacteria on algal growth and nutrients removal efficiency in this study. The characteristics of algal and bacterial growth profiles, wastewater nutrient removal and effect of initial algal inoculums were systematically examined. The results showed that initial algal concentration had apparent effect on bacterial growth, and the presence of bacteria had a significant influence on algal growth pattern, suggesting symbiotic relationship between algae and bacteria at the initial stage of algae cultivation. The maximum algal biomass of 2.01 g/L with 0.1 g/L initial algal inoculums concentration can be obtained during algae cultivation in raw centrate medium. The synergistic effect of centrate-borne bacteria and microalgae on algae growth and nutrient removal performance at initial fast growth stage has great potential to be applied to pilot-scale wastewater-based algae wastewater system cultivated in continuous or semi-continuous mode. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：8 / 13

页数：6

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