Feasibility study on combined production of algae and tomatoes in a dutch greenhouse

A.A. Slager, A. Sapounas, E.J. van Henten, S. Hemming

Research output: Chapter in Book/Report/Conference proceedingConference paper

2 Citations (Scopus)

Abstract

The Dutch horticultural sector shows interest in production of microalgae. When microalgae and a tomato crop are produced in the same greenhouse, both shared advantage of and competition for resources will occur. In this study a model was developed to predict algae biomass production in tubular photobioreactors (PBR) and to assess the economic feasibility of combined production of tomatoes and algae. The effects of the location of the PBR in the greenhouse, the diameter of the PBR tubes, the algae biomass concentration, the light intensity and the PBR temperature were considered. The economic feasibility of combined production was calculated, taking into account both investment and running costs. Three possible locations for the PBRs were considered. The most sensitive growth factor influencing economics of the systems was light. Economic feasibility of algae production underneath the tomato crop was poor; a minimum unit biomass production cost of 70 € kg-1 dry matter (DM) was calculated. Increasing the light intensity by decrease of the tomato LAI through extra leaf picking increases economic feasibility of algae production underneath the crop. Economic feasibility of algae production in a separated compartment was computed to be good with a minimum unit biomass production cost of 11 € kg-1 DM. The developed model can function as a basis for further research on combined production of a crop and microalgae in Dutch greenhouses.
Original languageEnglish
Title of host publicationVII International Symposium on Light in Horticultural Systems
EditorsS. Hemming, E. Heuvelink
Place of PublicationLeuven
PublisherISHS
Pages569-576
Volume2012
DOIs
Publication statusPublished - 2012
EventVII International Symposium on Light in Horticultural Systems - Wageningen, Netherlands
Duration: 15 Oct 201218 Oct 2012

Conference

ConferenceVII International Symposium on Light in Horticultural Systems
CountryNetherlands
CityWageningen
Period15/10/1218/10/12

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  • Cite this

    Slager, A. A., Sapounas, A., van Henten, E. J., & Hemming, S. (2012). Feasibility study on combined production of algae and tomatoes in a dutch greenhouse. In S. Hemming, & E. Heuvelink (Eds.), VII International Symposium on Light in Horticultural Systems (Vol. 2012, pp. 569-576). ISHS. https://doi.org/10.17660/ActaHortic.2012.956.68