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Sammanfattning

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.

Nyckelord

Chlorella vulgaris; Fatty acids; Hydroponics; Microalgae: nutrient removal; Scenedesmus spp.

Publicerad i

Bioresource Technology
2013, volym: 136, sidor: 401-406
Utgivare: ELSEVIER SCI LTD

SLU författare

Globala målen (SDG)

SDG6 Rent vatten och sanitet för alla

UKÄ forskningsämne

Mikrobiologi
Trädgårdsvetenskap/hortikultur

Publikationens identifierare

  • DOI: https://doi.org/10.1016/j.biortech.2013.03.019

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/56041