Co-cultivation of microalgae in aquaponics systems

Min M. Addy, Faryal Kabir, Dean Current, Renchuan Zhang, Qian Lu, Xiangyuan Deng, Richard Griffith, Hongyan Ren, Yiwei Ma, Wenguang Zhou, Paul Chen, Roger Ruan

Research output: Contribution to conferencePaperpeer-review

Abstract

Aquaponics systems were a sustainable model for the future farming. In aquaponics systems, the nutrient-rich wastewater generated by the fish provides nutrients needed for vegetable growth. In the present study, we examined the role of naturally occurring microalgae in selected aquaponics systems for ammonia control. The yields of algal biomass, vegetable, and fish, and removal of the key nutrients from the systems were monitored during the operation of the aquaponics systems. When the systems were in full operation, the algae production was estimated at about 5 g/m2.day which was considered low because the growth conditions were primarily tailored to fish and vegetable production. However, it was found algae did help balance the pH drop caused by nitrification bacteria, and the ammonia level was well controlled with algae.

Original languageEnglish (US)
DOIs
StatePublished - 2017
Event2017 ASABE Annual International Meeting - Spokane, United States
Duration: Jul 16 2017Jul 19 2017

Other

Other2017 ASABE Annual International Meeting
CountryUnited States
CitySpokane
Period7/16/177/19/17

Bibliographical note

Funding Information:
The funding for this project was provided in part by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative?Citizen Commission on Minnesota Resources (LCCMR), the University of Minnesota Grand Challenge Program, and University of Minnesota Center for Biorefining.

Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.

Keywords

  • Aquaponics
  • Biomass productivity
  • Co-cultivation
  • Microalgae

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