Enhancement of ammonium removal from landfill leachate using microalgae by an integrated strategy of nutrient balance and trophic mode conversion

Li, Jingjing; Qian, Jun; Tang, Junhang; Jin, Zeyu; Lu, Qian; Cheng, Jiali; Zhou, Xiya; Zhang, Xiru; Fu, Siyi; Wan, Ting; Li, Hugang; Qin, Chen

doi:10.1016/j.algal.2021.102572

Cited by 25 publications

(5 citation statements)

References 55 publications

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“…The main sources of nitrogen in landfill leaching are of plant or animal origin, their concentration is directly related to the amount of organic matter present in the residues. Other nitrogen sources that may be present in leached are: fertilizers, cleaning products, meat preserved with ammonia and wood preservation products (Li, et al, 2022). The physicochemical analyses made by BATTRE prove the existence of a high concentration of ammoniacal nitrogen in the slurry, about 2.032 mg.L -1 .…”

Section: Discussion Of Nitrogen Removal and Efficiencymentioning

confidence: 99%

“…Studies such as Li et al (2022) using Chlorella vulgaris evaluated the nitrogen removal rate in slurry, found a removal of 65% due to the influence of the N:P ratio, which was 190:1. Studies indicate that a balanced N/P ratio is required for slurry removal, considering 90:1 to 30:1 (Paskuliakova et al 2016).…”

Section: Discussion Of Nitrogen Removal and Efficiencymentioning

confidence: 99%

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Tratamento de lodo de aterro: uma proposta baseada na perspectiva da bioeconomia circular

Assis¹,

Barbosa²,

Lacerda³

et al. 2022

RSD

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O cultivo de microalgas em resíduos líquidos surge como uma possibilidade biotecnológica devido à sustentabilidade do processo, uma vez que poluentes presentes em resíduos como nitrogênio (N) e fósforo (P) são utilizados por esses microrganismos como nutrientes para seu crescimento e produção de biomassa com valor adicionado. O objetivo deste trabalho foi desenvolver um protótipo de fotobiorreatores para remoção de nutrientes: nitrogênio e fósforo através do cultivo da microalga Chlorella vulgaris em lixiviado de aterro sanitário diluído em efluente doméstico. O cultivo teve duração de 28 dias onde foi avaliada a remoção de nutrientes nitrogênio e fósforo, bem como o crescimento de microalgas. Os melhores resultados de crescimento de microalgas foram obtidos em fotobiorreatores contendo 100% de efluente doméstico e 15% de chorume com concentração de clorofila de 2.277,08±247,21 µg.L-1 e 223,12±17,44 µg.L-1, respectivamente, no 21º dia de cultivo. Com relação à remoção de nutrientes de nitrogênio e fósforo, foi possível observar que a espécie utilizada neste estudo apresenta boa eficiência, cerca de 72,36% para nitrogênio e 44,32% para fósforo ao final do cultivo.

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Section: Discussion Of Nitrogen Removal and Efficiencymentioning

confidence: 99%

Section: Discussion Of Nitrogen Removal and Efficiencymentioning

confidence: 99%

Tratamento de lodo de aterro: uma proposta baseada na perspectiva da bioeconomia circular

Assis¹,

Barbosa²,

Lacerda³

et al. 2022

RSD

View full text Add to dashboard Cite

show abstract

“…One algal strain used for ADPE remediation was isolated from a local water body surrounding the Nanchang Maiyuan Landfill Plant and named Nanchang University (NCU)-7, which was identified as Chlorella sorokiniana , based on our previous methods ( Li et al, 2022 ). C. sorokiniana has been widely applied in wastewater remediation because it can achieve high biomass production and nutrient removal in mixotrophic cultivation ( León-Vaz et al, 2019 ; Qian et al, 2020 ; Qian et al, 2021 ).…”

Section: Methodsmentioning

confidence: 99%

Enhancing algal growth and nutrient recovery from anaerobic digestion piggery effluent by an integrated pretreatment strategy of ammonia stripping and flocculation

Qian

Song

et al. 2023

Front. Bioeng. Biotechnol.

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Anaerobic digestion piggery effluent (ADPE) with a quite high ammonium (NH4+) concentration and turbidity (dark brown color) generally requires high dilution before microalgae cultivation, owing to its NH4+ toxicity and color inhibition to algal growth. An integrated pretreatment strategy of ammonia stripping and chemical flocculation may be a more practical pretreatment procedure for enhancing algae yield and nutrient recovery from anaerobic digestion piggery effluent. In this study, we determined the optimum pretreatment strategy of anaerobic digestion piggery effluent for subsequent microalgae cultivation and nutrient recovery. The results showed that the integrated anaerobic digestion piggery effluent pretreatment strategy of high-temperature ammonia stripping and chemical flocculation at a mixed dosage of 2 g L−1 polyaluminum chloride (PAC) and 40 mg L−1 cationic polyacrylamide (C-PAM), and 50 mg L−1 ammonium nitrogen (NH4+-N) enrichment provided maximum algal yield (optical density = 1.8) and nutrient removal (95.2%, 98.7%, 99.3%, and 78.5% for the removal efficiencies of total nitrogen, NH4+-N, total phosphorus, and chemical oxygen demand, respectively) from anaerobic digestion piggery effluent. The integrated pretreatment strategy is expected to become a more practical pretreatment procedure for enhancing algae yield and nutrient recovery from anaerobic digestion piggery effluent.

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“…Chlorella pyrenoidosa , an algal strain with high protein content, was cultivated in a TAP medium for 6 days. The medium composition and cultivation conditions are documented in our previous publication ( 9 ). By the end of the microalgal cultivation, biomass was collected by centrifugation and dehydrated using a vacuum dryer (Alpha 1-4 LDplus, Christ, Osterode, Germany).…”

Section: Methodsmentioning

confidence: 99%

Could Chlorella pyrenoidosa be exploited as an alternative nutrition source in aquaculture feed? A study on the nutritional values and anti-nutritional factors

Chen

Qian

et al. 2022

Front. Nutr.

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This work attempted to identify if microalgal biomass can be utilized as an alternative nutrition source in aquaculture feed by analyzing its nutritional value and the anti-nutritional factors (ANFs). The results showed that Chlorella pyrenoidosa contained high-value nutrients, including essential amino acids and unsaturated fatty acids. The protein content in C. pyrenoidosa reached 52.4%, suggesting that microalgal biomass can be a good protein source for aquatic animals. We also discovered that C. pyrenoidosa contained some ANFs, including saponin, phytic acid, and tannins, which may negatively impact fish productivity. The high-molecular-weight proteins in microalgae may not be effectively digested by aquatic animals. Therefore, based on the findings of this study, proper measures should be taken to pretreat microalgal biomass to improve the nutritional value of a microalgae-based fish diet.

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Enhancement of ammonium removal from landfill leachate using microalgae by an integrated strategy of nutrient balance and trophic mode conversion

Cited by 25 publications

References 55 publications

Tratamento de lodo de aterro: uma proposta baseada na perspectiva da bioeconomia circular

Tratamento de lodo de aterro: uma proposta baseada na perspectiva da bioeconomia circular

Enhancing algal growth and nutrient recovery from anaerobic digestion piggery effluent by an integrated pretreatment strategy of ammonia stripping and flocculation

Could Chlorella pyrenoidosa be exploited as an alternative nutrition source in aquaculture feed? A study on the nutritional values and anti-nutritional factors

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