Elucidating the symbiotic interactions between a locally isolated microalga Chlorella vulgaris and its co-occurring bacterium Rhizobium sp. in synthetic municipal wastewater

Ferro, Lorenza; Colombo, M.; Posadas, Esther; Funk, Christiane; Muñoz, Raúl

doi:10.1007/s10811-019-1741-1

Cited by 45 publications

(34 citation statements)

References 48 publications

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“…81 and Methylobacterium sp. 91 had no impact on the OD of the axenic C. vulgaris in our study, yet there are many reports of the plant and algal growth enhancing properties of these strains (Hayat et al 2010;Kim et al 2014b;Ferro et al 2019). The low nutrient conditions provided by the Chu10 medium may also have been a factor here.…”

Section: Resultsmentioning

confidence: 50%

“…Chlorella sp. have been widely studied with respect to their interactions with bacteria, with reports of Azospirillum, Flavobacterium, Hyphomonas, Rhizobium and Sphingomonas enhancing growth, lipid content and flocculation (Gonzalez-Bashan, 2000;Kim et al 2014b;Cho et al 2015;Ferro et al 2019). In the current study, we aimed to characterise the bacterial community associated with a freshwater Chlorella sp.…”

Section: Introductionmentioning

confidence: 99%

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Characterisation of bacteria from the cultures of a Chlorella strain isolated from textile wastewater and their growth enhancing effects on the axenic cultures of Chlorella vulgaris in low nutrient media

et al. 2019

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Section: Resultsmentioning

confidence: 50%

Section: Introductionmentioning

confidence: 99%

Characterisation of bacteria from the cultures of a Chlorella strain isolated from textile wastewater and their growth enhancing effects on the axenic cultures of Chlorella vulgaris in low nutrient media

et al. 2019

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“…Outdoor systems where heterotrophic bacterial activity was also promoted by controlling pH below 8.0 presented higher COD removal efficiencies (Molinuevo-Salces et al 2010) since symbiotic interactions between microalgae and bacteria enhance carbon and nutrient removal and biomass productivity (García et al 2000;Craggs et al 2012;Ferro et al 2019). The presence of heterotrophic bacteria during wastewater treatment in microalgae-based photobioreactors is relevant because CO2 from aerobic respiration of organic matter becomes available for autotrophic metabolisms.…”

Section: Treatment Performance and Biomass Valorisation Cod Removal Efficiencies In Pilot Systemsmentioning

confidence: 99%

“…Similarly, co-cultivation of Chlorella vulgaris and Rhizobium sp. led to faster assimilation of nutrients under mixotrophic conditions, since a positive synergistic relationship resulted from the in situ O2/CO2 exchange between the microorganisms (Ferro et al 2019).…”

Section: Treatment Performance and Biomass Valorisation Cod Removal Efficiencies In Pilot Systemsmentioning

confidence: 99%

Current advances in microalgae-based treatment of high-strength wastewaters: challenges and opportunities to enhance wastewater treatment performance

Torres-Franco

Passos

Figueredo

et al. 2020

Rev Environ Sci Biotechnol

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Microalgae-based technologies, usually configured as high rate algal ponds (HRAP), are efficient, sustainable, and cost-effective alternatives for wastewater treatment due to their high removal efficiencies at low energy demand, ability to recover nutrients and ease of operation. HRAPs and other photobioreactors have been intensively studied in recent years for the treatment of highstrength wastewaters, which are mainly characterised by high and unbalanced (in terms of microalgae requirements) concentrations of organic carbon and nutrients. This review critically evaluated research papers that used microalgae-based systems for the removal of carbon and nitrogen from high-strength wastewaters. These systems can provide removal efficiencies up to 100% for organic matter and ammonium nitrogen. Relatively large area requirements, high evaporative losses, ammonia inhibition, poor light penetration and scattering, carbon dioxide limitation, and unbalanced nutrient ratios rank among the main current limitations of these technologies. Optimisation strategies, including modifications in bioreactor design and operation, can broaden their full-scale application for the treatment of high strength wastewaters.

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“…Meanwhile, microalgae can provide O2 via photosynthesis and produce nutrients for bacterial growth (Sayre, 2010). Ferro et al (2019) reported that some bacteria can achieve high efficiency in removing pollutants from wastewater and promote algal biomass production through metabolic complementarity.…”

Section: Introductionmentioning

confidence: 99%

Algal-Bacterial Synergy for Lipid Production and Nutrient Removal in Tofu Liquid Waste

Elystia¹,

Saragih²,

Muria³

2021

IJTech

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Energy diversification using microalgae biomass offers a solution to the fossil fuel crisis, which has become a global issue. Chlorella sp. is a microalga that can produce lipids and reduce chemical oxygen demand (COD) in liquid waste. In this research, we used Chlorella sp. to produce lipids and reduce COD in tofu liquid waste. This research aimed to identify the interaction between a complex microorganism, as a decomposer agent, with the addition of the photosynthetic microalgae Chlorella sp. as an oxygen producer to reduce COD in tofu liquid waste. Moreover, we aimed to determine the interaction between Chlorella sp. and a bacterial consortium for microalgae growth and lipid production. This study was conducted in batches with the addition of bacteria at five different concentrations (% v/v): 0 (no addition), up to 0.25, 0.50, 0.75, and 1. Cultivation was conducted for 13 days with solar irradiation in a photobioreactor. As a result, the highest density and the highest growth rate were obtained from the treatment with 1% bacteria, achieving as many as 5.6510 6 cell/mL and 0.21/day. The 1% treatment was able to produce lipids and COD removal efficiencies of 20.93% and 96.30% at the best-removing detention times, which both occurred on the 13 th day of cultivation.

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Elucidating the symbiotic interactions between a locally isolated microalga Chlorella vulgaris and its co-occurring bacterium Rhizobium sp. in synthetic municipal wastewater

Cited by 45 publications

References 48 publications

Characterisation of bacteria from the cultures of a Chlorella strain isolated from textile wastewater and their growth enhancing effects on the axenic cultures of Chlorella vulgaris in low nutrient media

Characterisation of bacteria from the cultures of a Chlorella strain isolated from textile wastewater and their growth enhancing effects on the axenic cultures of Chlorella vulgaris in low nutrient media

Current advances in microalgae-based treatment of high-strength wastewaters: challenges and opportunities to enhance wastewater treatment performance

Algal-Bacterial Synergy for Lipid Production and Nutrient Removal in Tofu Liquid Waste

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