Growth of mono- and mixed cultures of Nannochloropsis salina and Phaeodactylum tricornutum on struvite as a nutrient source

被引：28

作者：

Davis, Ryan W. ^{[1
]}

Siccardi, Anthony J., III ^{[2
]}

Huysman, Nathan D. ^{[2
]}

Wyatt, Nicholas B. ^{[3
]}

Hewson, John C. ^{[3
]}

Lane, Todd W. ^{[1
]}

机构：

[1] Sandia Natl Labs, Livermore, CA 94550 USA

[2] Texas AgriLife Res Mariculture Lab, Corpus Christi, TX USA

[3] Sandia Natl Labs, Albuquerque, NM 87185 USA

来源：

BIORESOURCE TECHNOLOGY | 2015年 / 198卷

关键词：

Struvite; Microalgae; Nutrient recycling; Wastewater; Mixed culture; WASTE-WATER; PHOSPHORUS; MICROALGAE; NITROGEN; SOLUBILITY; RECOVERY; SEAWATER; FLOWS;

D O I：

10.1016/j.biortech.2015.09.070

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The suitability of crude and purified struvite (MgNH4PO4), a major precipitate in wastewater streams, was investigated for renewable replacement of conventional nitrogen and phosphate resources for cultivation of microalgae. Bovine effluent wastewater stone, the source of crude struvite, was characterized for soluble N/P, trace metals, and biochemical components and compared to the purified mineral. Cultivation trials using struvite as a major nutrient source were conducted using two microalgae production strains, Nannochloropsis salina and Phaeodactylum tricornutum, in both lab and outdoor pilot-scale raceways in a variety of seasonal conditions. Both crude and purified struvite-based media were found to result in biomass productivities at least as high as established media formulations (maximum outdoor co-culture yield similar to 20 +/- 4 g AFDW/m(2)/day). Analysis of nutrient uptake by the alga suggest that struvite provides increased nutrient utilization efficiency, and that crude struvite satisfies the trace metals requirement and results in increased pigment productivity for both microalgae strains. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：577 / 585

页数：9

共 34 条

[1] GROWTH MORPHOLOGY AND CRYSTAL HABIT OF STRUVITE CRYSTALS (MGNH4PO4.6H2O) [J].