Sequencing versus continuous granular sludge reactor for the treatment of freshwater aquaculture effluents

Santorio, Sergio; Couto, Ana T.; Amorim, Catarina L.; Río, Ángeles Val del; Arregui, Luz; Mosquera-Corral, Anuska; Castro, Paula M. L.

doi:10.1016/j.watres.2021.117293

Cited by 23 publications

(4 citation statements)

References 33 publications

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“…Stable and low biomass bed-height and effluents' solid (TSS and VSS) contents were detected throughout operation. A similar trend was reported by Santorio et al (2021) that used an aerobic granular sludge system to treat freshwater aquaculture effluents. The low carbon and nitrogen concentrations in this kind of effluents induce a metabolic selective pressure, only supporting the viability of small biomass portions.…”

Section: Discussionsupporting

confidence: 81%

Bioremediation of coastal aquaculture effluents spiked with florfenicol using microalgae-based granular sludge – a promising solution for recirculating aquaculture systems

et al. 2023

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Section: Discussionsupporting

confidence: 81%

Bioremediation of coastal aquaculture effluents spiked with florfenicol using microalgae-based granular sludge – a promising solution for recirculating aquaculture systems

et al. 2023

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“…The exogenous microorganisms, included Bacillus licheniformis, Bacillus sp. (Jiangsu Suwei microbial research Co., Ltd.) (Ren et al, 2021), and activated sludge (Sk Hynix Semiconductor (Wuxi) Co., Ltd.) (Santorio et al, 2021;Kuśnierz et al, 2022), were named as three bacteria liquids. Their concentrations were 10.3389/fmicb.2022.944366 1 × 10 8 -1 × 10 9 CFU/ml of a bacterial liquid dosage of 1 mg/L following Murray et al (1981).…”

Section: Experimental Design and Samplingmentioning

confidence: 99%

Effective mechanisms of water purification for nitrogen-modified attapulgite, volcanic rock, and combined exogenous microorganisms

et al. 2022

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The study tested the water purification mechanism of the combination of microorganisms and purification materials via characteristic, enzymatic, and metagenomics methods. At 48 h, the removal rates of total nitrogen, total phosphorous, and Mn chemical oxygen demand in the combination group were 46.91, 50.93, and 65.08%, respectively. The alkaline phosphatase (AKP) activity increased during all times tested in the volcanic rock, Al@TCAP, and exogenous microorganism groups, while the organophosphorus hydrolase (OPH), dehydrogenase (DHO), and microbial nitrite reductase (NAR) activities increased at 36-48, 6-24, and 36-48 h, respectively. However, the tested activities only increased in the combination groups at 48 h. Al@TCAP exhibits a weak microbial loading capacity, and the Al@TCAP removal is primarily attributed to adsorption. The volcanic rock has a sufficient ability to load microorganisms, and the organisms primarily perform the removal for improved water quality. The predominant genera Pirellulaceae and Polynucleobacter served as the sensitive biomarkers for the treatment at 24, 36-48 h. Al@TCAP increased the expression of Planctomycetes and Actinobacteria, while volcanic rock increased and decreased the expression of Planctomycetes and Proteobacteria. The growth of Planctomycetes and the denitrification reaction were promoted by Al@TCAP and the exogenous microorganisms. The purification material addition group decreased the expression of Hyaloraphidium, Chytridiomycetes (especially Hyaloraphidium), and Monoblepharidomycetes and increased at 36-48 h, respectively. Ascomycota, Basidiomycota, and Kickxellomycota increased in group E, which enhanced the nitrogen cycle through microbial enzyme activities, and the growth of the genus Aspergillus enhanced the phosphorous purification effect.

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“…Efficient aquaculture wastewater treatment techniques have been developed and applied in recent years [9,10]. Biofloc technology (BFT) is a highly efficient, eco-friendly aquaculture technique that results in little or no water exchange with the outside environment [11].…”

Section: Introductionmentioning

confidence: 99%

Combined Effects of Eco-Substrate and Carbon Addition on Water Quality, Fish Performance and Nutrient Budgets in the Pond Polyculture System

Guo

Zhao

Xie

et al. 2022

Fishes

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Traditional aquaculture can cause serious environmental pollution. Biofilm and biofloc technology have the potential to limit aquaculture pollution. An outdoor experiment was conducted to evaluate the combined effects of eco-substrates and carbon addition on water quality, fish performance and nutrient budgets in the pond polyculture system. In the treatment group, the total ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, and total nitrogen of the water were significantly lower compared to the control group (p < 0.05). The growth performance of H. molitrix and A. nobilis, including the final individual weight, specific growth rate, weight gain rate, total production and net production, was significantly higher in the treatment groups compared to the control (p < 0.05), while there was no significant difference in those of C. carpio between the two groups. Feed was the main N (>92%) and P (>95%) input during the experiment. Comprehensive accumulation was the main N (>58%) and P (>69%) output. The N and P feed input and comprehensive accumulation output declined in the treatment group. The N utilization efficiency in the experimental group increased slightly (p > 0.05), while the P utilization efficiency in the experimental group was significantly higher compared to the control (p < 0.05). Therefore, the application of eco-substrates and carbon addition can increase water quality, improve fish growth, and promote nutrient utilization efficiency in pond polyculture systems.

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Sequencing versus continuous granular sludge reactor for the treatment of freshwater aquaculture effluents

Cited by 23 publications

References 33 publications

Bioremediation of coastal aquaculture effluents spiked with florfenicol using microalgae-based granular sludge – a promising solution for recirculating aquaculture systems

Bioremediation of coastal aquaculture effluents spiked with florfenicol using microalgae-based granular sludge – a promising solution for recirculating aquaculture systems

Effective mechanisms of water purification for nitrogen-modified attapulgite, volcanic rock, and combined exogenous microorganisms

Combined Effects of Eco-Substrate and Carbon Addition on Water Quality, Fish Performance and Nutrient Budgets in the Pond Polyculture System

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