Suitability of supernatant of aerobic and anaerobic pikeperch (Sander lucioperca L.) sludge treatments as a water source for hydroponic production of lettuce (Lactuca sativa L. var. capitata)

Delaide, Boris; Panana, Edson; Teerlinck, Stefan; Bleyaert, Peter

doi:10.1007/s10499-021-00709-2

Cited by 8 publications

(10 citation statements)

References 18 publications

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“…The effluent was separated into aqueous and particulate fractions prior to analysis with 1.5-micron glass fiber filters. For this study, nutrients in the aqueous fraction of the effluent were considered plant available as past studies have demonstrated that mineralized aquaponic/RAS effluent can be an effective fertilizing solution [17,23]. Measurement of TSS concentration and pH was conducted at the UNH Agricultural Engineering Laboratory using the APHA Method 2540D [24] and a Fisher Scientific Accument AB250 (Waltham, MA, USA), respectively.…”

Section: Drum Screen Effluent Collection and Analysismentioning

confidence: 99%

“…Previous research identified that RAS effluent contains the essential macro-and micronutrients for plant growth but requires additional treatment to mineralize particulatebound nutrients to increase plant availability [11][12][13][14][15]. Several studies have shown that aerobic mineralization can be an effective method for reducing solids content and solubilizing nutrients in RAS effluent [14,[16][17][18]. However, no published work has analyzed solubilization across an array of plant essential nutrients or tracked solids mineralization across multiple time points in aerobically treated direct RAS discharge that had not undergone a pre-processing phase in a single study period [14,[16][17][18].…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have shown that aerobic mineralization can be an effective method for reducing solids content and solubilizing nutrients in RAS effluent [14,[16][17][18]. However, no published work has analyzed solubilization across an array of plant essential nutrients or tracked solids mineralization across multiple time points in aerobically treated direct RAS discharge that had not undergone a pre-processing phase in a single study period [14,[16][17][18]. This research analyzed the aerobic treatment of unprocessed effluent directly from a pilot RAS, operated at industry standard stocking densities and feed rates to provide a waste stream commensurate with commercial production [19,20].…”

Section: Introductionmentioning

confidence: 99%

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Towards a Capture and Reuse Model for Aquaculture Effluent as a Hydroponic Nutrient Solution Using Aerobic Microbial Reactors

2021

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Controlled environment agriculture (CEA) technologies are required to meet current and future food production demand as the global population rises, arable land decreases, and minerals for fertilizer production are depleted. Hydroponics and recirculating aquaculture systems (RAS) are intensive production methods that can provide season-independent vegetables and seafood in urban settings but are limited by a reliance on fertilizing solutions made from finite mineral reserves and the treatment and disposal costs of nutrient rich effluent, respectively. The development of a capture and reuse system where RAS effluent is solubilized to become plant-available and utilized as a hydroponic nutrient solution would aid both industries and increase food security in urban food deserts. Aerobic mineralization is used in domestic wastewater treatment to reduce solid content and solubilize particulate-bound nutrients. Preliminary studies have also shown that aerobic mineralization can be an effective method for RAS effluent treatment. Aerobic batch reactors were used to mineralize RAS effluent in this study. Suspended solids reduction achieved in the reactors was measured throughout the experiment and the plant-availability of twelve nutrients was determined before and after treatment. It was shown that aerobic mineralization can effectively reduce particulate-bound solids and solubilize nutrients to increase plant utilization in RAS effluent.

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Section: Drum Screen Effluent Collection and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Towards a Capture and Reuse Model for Aquaculture Effluent as a Hydroponic Nutrient Solution Using Aerobic Microbial Reactors

2021

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“…The copyright holder for this preprint this version posted December 31, 2022. ; https://doi.org/10.1101/2022.12.30.522315 doi: bioRxiv preprint biogas digestates or filtrates of aerobic digestates applied to hydroponics cause phosphorous deficiency (Stoknes et al, 2016, Delaide et al, 2021.…”

Section: Introductionmentioning

confidence: 99%

“…Our research group has shown that the filtrate of neutrophilic nitrified biogas digestate (f-NNBD) can be used to cultivate chrysanthemum on rock wool (Takemura et al, 2020), but 3 biogas digestates or filtrates of aerobic digestates applied to hydroponics cause phosphorous deficiency (Stoknes et al, 2016, Delaide et al, 2021.…”

Section: Introductionmentioning

confidence: 99%

Acidophilic nitrification alleviates phosphorus deficiency in hydroponics using biogas digestates

Sakuma

Endo²,

Shibuya³

2022

Preprint

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Biogas digestates can be applied to hydroponics via nitrification. However, the low solubility of phosphorus in digestates can cause phosphorus deficiency in plants. Here, we hypothesized that acidophilic nitrification might prevent this deficiency by dissolving phosphorus in the digestate. Acidophilic and neutrophilic nitrification were conducted at a pH of 3.27 and 6.25 using biogas digestates from food wastes. Acidophilic nitrification dissolved about 3.5 times more phosphorus than neutrophilic nitrification, but the increased acidity also reduced the nitrification rate, resulting in residual ammonium. We then grew lettuce hydroponically with filtrates of these digestates. The growth performance suggested that the increased phosphorus improved growth and that the residual ammonium did not inhibit it. Acidophilic nitrification was shown to be effective for use in hydroponics, particularly to alleviate phosphorus deficiency. These findings should provide new insights into resource recycling, which is essential in both urban and space environments.

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A systematic review of food-waste based hydroponic fertilisers

Wang,

Deaker,

Van Ogtrop

2025

Agricultural Systems

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Suitability of supernatant of aerobic and anaerobic pikeperch (Sander lucioperca L.) sludge treatments as a water source for hydroponic production of lettuce (Lactuca sativa L. var. capitata)

Cited by 8 publications

References 18 publications

Towards a Capture and Reuse Model for Aquaculture Effluent as a Hydroponic Nutrient Solution Using Aerobic Microbial Reactors

Towards a Capture and Reuse Model for Aquaculture Effluent as a Hydroponic Nutrient Solution Using Aerobic Microbial Reactors

Acidophilic nitrification alleviates phosphorus deficiency in hydroponics using biogas digestates

A systematic review of food-waste based hydroponic fertilisers

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