Mass balanced based LCA of a common carp-lettuce aquaponics system

Jaeger, Christophe; Foucard, Pierre; Tocqueville, Aurélien; Nahon, Sarah; Aubin, Joël

doi:10.1016/j.aquaeng.2018.11.003

Cited by 47 publications

(25 citation statements)

References 30 publications

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“…Boxman et al (2017) found fish food and electrcity consumption to be 2 of the major contributions to the environmental impact of their aquaponics system, across multiple impact categories. This finding is reinforced elsewhere in the current literature (Hollmann 2013;Hindelang et al 2014;Forchino et al 2017;Cohen et al 2018;Mauceiri et al 2018;Jaeger et al 2019). Forchino et al (2017) also included the enviornmental impact of the aquaponics infrastructure, which contributed significantly to the overall environmental impact.…”

Section: Environmental Implicationssupporting

confidence: 86%

Sustainable Seafood and Vegetable Production: Aquaponics as a Potential Opportunity in Urban Areas

Ghamkhar

Ashton

et al. 2019

Integr Envir Assess & Manag

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Global population growth will increase pressures on current food systems in order to supply adequate protein and produce to the increasingly urban world population. The environmental impact of food production is a critical area of study as it influences water and air quality, ecosystem functions, and energy consumption. Aquaponics (in which seafood and vegetables are grown in a closed‐loop system) has the potential to reduce the environmental impact of food production. A review of the current environmental and economic considerations is provided in order to identify current research gaps. Research gaps exist with respect to 1) diversity of aquatic and plant species studied; 2) inconsistent bounds, scope, and lifetime across studies; 3) diverse allocation of the environmental and economic impacts to the coproducts; 4) scale of systems considered; 5) transportation of produced food; and 6) presence of heavy metals, pests, and pathogens with human health implications. These aspects require increased attention to close the existing gaps prior to widescale deployment of these systems for increased sustainable food production toward satisficing human needs. Integr Environ Assess Manag 2019;00:1–12. © 2019 SETAC

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Section: Environmental Implicationssupporting

confidence: 86%

Sustainable Seafood and Vegetable Production: Aquaponics as a Potential Opportunity in Urban Areas

Ghamkhar

Ashton

et al. 2019

Integr Envir Assess & Manag

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“…With respect to the macronutrient phosphorus, it was assumed that approximately a third of the total system P would be carried downstream as soluble phosphate in the circulating water ( Davidson et al, 2013 ; Cerozi and Fitzsimmons, 2017 ; Jaeger et al, 2019 ), and that the solids treatment system would further augment this quantity. However, no such trend could be observed in the nutrient solution wells ( Figure 5 ).…”

Section: Discussionmentioning

confidence: 99%

Improving Plant Health Through Nutrient Remineralization in Aquaponic Systems

Lobanov

Combot²,

Pelissier³

et al. 2021

Front. Plant Sci.

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The exploitation of readily bioavailable fish excreta as a source of plant nutrients lies at the cornerstone of aquaponics farming. Research on nutrient cycling in aquaponic systems has devoted considerable attention to the plant uptake of dissolved nutrients in fish excreta, however, the integration of particulate-bound nutrients into downstream hydroponic farming has remained elusive. The high amount of organic carbon present in fish sludge may lead to biofouling if directly incorporated into hydroponic circulation systems, reducing the utility of incorporating fish solids on a large scale. In this study, we implemented a novel treatment system capable of reducing the carbon and nitrogen load of fish solids to produce a liquid fertilizer for a downstream hydroponics unit. Lettuce (Lactuca sativa) fertilized with exclusively a commercial nutrient solution, the biofilter effluent (coupled aquaponic system), effluent from the solids treatment system, or the latter two combined were grown in nutrient flow technique gutters downstream of a recirculating aquaculture system stocked with rainbow trout (Oncorhynchus mykiss). While crop yields were lower for the aquaponic treatments compared to lettuce grown in a commercial nutrient solution, plant sap analysis demonstrated a contrasting picture with respect to internal nutrient concentrations. Lettuce grown in the commercial hydroponic solution were deficient in several mineral nutrients (Mg, Ca, Na, and Si) nor did they have higher iron concentrations despite the significantly higher EDTA-chelated aqueous iron (460 × greater than other treatments) in the nutrient solution. Nutrient uptake in the rhizosphere was not investigated on a molecular level, although stunted rhizosphere growth in the commercial nutrient solution control suggests a weakened capacity for nutrient uptake in comparison to other treatments. Alongside the remineralization of micronutrients, the solids treatment system addressed the common issue of excess carbon leading to biofouling via a total suspended solids reduction of 87.27% ± 9.95 during the coupled aquaponics cultivation period. Ultimately, these data lead to two important conclusions. Firstly, optimizing nutrient bioavailability is not synonymous to increasing the presence of a nutrient in the water column. Secondly, estimating ideal nutrient solution concentrations involves both preventing nutrient blocking and improving bioavailability.

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“…In a circulating system, nitrite concentration should be lower than 1 mg L -1 [23]. The nitrite concentration must lower than 0.1 mg L -1 [22], [26]. The Nitrobacter oxidates nitrite into nitrate.…”

Section: B Discussionmentioning

confidence: 99%

Phytoremediation by Echinodorus palaefolius to Reduce Nitrogen and Phosphate Waste of Intensive Culture Anguilla bicolor in Recirculation Aquaculture Systems

Handajani¹,

Widanarni²,

Budiardi³

et al. 2021

Int. J. Adv. Sci. Eng. Inf. Technol.

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Increase in aquaculture activities leads to a negative impact on the environment. Thus, phytoremediation through recirculation aquaculture system becomes one effort that can be applied. The study aimed to evaluate the administration of Echinodorus palaefolius (water jasmine plant) through increasing the capacity of plants as phytoremediators in reducing the waste of intensive culture eel. This study used a completely randomized design with three treatments of E. palaefolius density and repeated 3 times, as treatments were 1.04 g L -1 (Ep1), 2.08 g L -1 (Ep2), and 3.13 g L -1 (Ep3). The initial average eel weight was 8.3 ± 0.13 g, with a stocking density of 4 g L -1 . The results showed a significant difference in the effect of E. palaefolius density on nutrient removal efficiency, as well as performance on eel and plant growth. The highest efficiency of nutrient removal in E. palaefolius with a density of 2.08 g L-1, nitrite (49.65 ± 4.52) %, nitrate (59.62 ± 1.89) %, phosphate (60.88 ± 1. 03) %, and TAN (46.03 ± 0.63) %. At E. palaefolius density 2.08 g L-1 produced eel specific growth rates (0.99 ± 0.02) % lowest feed conversion (1.97 ± 0.03), and highest increase of E. palaefolius biomass (262, 33 ± 2.60 g with daily growth 4.37 ± 0.43 g day-1). Thus, it can be concluded that the density of E. palaefolius 2.08 g L-1 produces the best efficiency in removing nutrients, the growth performance of eels and plants.

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Mass balanced based LCA of a common carp-lettuce aquaponics system

Cited by 47 publications

References 30 publications

Sustainable Seafood and Vegetable Production: Aquaponics as a Potential Opportunity in Urban Areas

Sustainable Seafood and Vegetable Production: Aquaponics as a Potential Opportunity in Urban Areas

Improving Plant Health Through Nutrient Remineralization in Aquaponic Systems

Phytoremediation by Echinodorus palaefolius to Reduce Nitrogen and Phosphate Waste of Intensive Culture Anguilla bicolor in Recirculation Aquaculture Systems

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