Hultberg, Malin
- Horticulture, Swedish University of Agricultural Sciences
Research article2013Peer reviewed
Treatment of drainage solution from hydroponic greenhouse production with microalgae
Hultberg, Malin; Carlsson, Anders; Gustafsson, Susanne
Abstract
This study investigated treatment of the drainage solution from greenhouse production with microalgae, through inoculation with Chlorella vulgaris or through growth of the indigenous microalgal community. A significant reduction in nitrogen, between 34.7 and 73.7 mg L-1, and particularly in phosphorus concentration, between 15.4 and 15.9 mg L-1, was observed in drainage solution collected from commercial greenhouse production. The large reduction in nutrients was achieved through growth of the indigenous microalgal community i.e., without pre-treatment of the drainage solution or inoculation with the fast growing green microalgae C vulgaris. Analysis of the fatty acid composition of the algal biomass revealed that compared with a standard growth medium for green algae, the drainage solution was inferior for lipid production. Despite the biorefinery concept being less promising, microalgae-based treatment of drainage solution from greenhouse production is still of interest considering the urgent need for phosphorus recycling. (C) 2013 Elsevier Ltd. All rights reserved.
Keywords
Chlorella vulgaris; Fatty acids; Hydroponics; Microalgae: nutrient removal; Scenedesmus spp.
Published in
Bioresource Technology
2013, volume: 136, pages: 401-406
Publisher: ELSEVIER SCI LTD
SLU Authors
Carlsson, Anders
- Department of Plant Breeding, Swedish University of Agricultural Sciences
- Department of Plant Breeding, Swedish University of Agricultural Sciences
Global goals (SDG)
SDG6 Clean water and sanitation
UKÄ Subject classification
Microbiology
Horticulture
Publication identifier
- DOI: https://doi.org/10.1016/j.biortech.2013.03.019
Permanent link to this page (URI)
https://res.slu.se/id/publ/56041