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 language||English (US)|
|State||Published - 2017|
|Event||2017 ASABE Annual International Meeting - Spokane, United States|
Duration: Jul 16 2017 → Jul 19 2017
|Other||2017 ASABE Annual International Meeting|
|Period||7/16/17 → 7/19/17|
Bibliographical noteFunding 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 2017 Elsevier B.V., All rights reserved.
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