Eco-Friendly Approach for Treating Dairy Effluent and Lipid Estimation Using Microalgae

Rani, Archna; Rao, Hanumantha; Kumar, Anil; Shruthi, M.

doi:10.9734/bbj/2015/16931

Cited by 5 publications

(4 citation statements)

References 14 publications

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“…COD removal efficiency reported in the present study was significantly higher than values reported in the literature (Table 2), although there are some exceptions, such as Guruvaiah et al, [74] and Rani et al [78] Furthermore, as shown in Table 2, TN and TP removal efficiencies from dairy effluent were comparable to those reported by certain authors. Nonetheless, TN and TP removal efficiencies of both H. pluvialis and C. zofingiensis in the present study are lower than nitrate, ammonia, and phosphate removal efficiencies in dairy effluents reported in the literature.…”

Section: Chloromonas Playfariisupporting

confidence: 66%

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Sustainable cultivation of Haematococcus pluvialis and Chromochloris zofingiensis for the production of astaxanthin and co‐products

et al. 2022

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Large-scale cultivation of microalgae for the production of high-value compounds raises concerns on sustainability due to intense consumption of water resources. Use of wastewater for microalgae cultivation is considered a promising alternative, because it not only reduces water consumption, but also provides nutrients required for microalgae growth. In the present study, Haematococcus pluvialis and Chromochloris zofingiensis were cultivated in synthetic dairy wastewater (DWW) to identify the potential of developing highvalue product first biorefineries, with astaxanthin as the main product.H. pluvialis and C. zofingiensis cultivated in DWW achieved biomass concentrations of 0.55 ± 0.01 and 0.65 ± 0.01 g/L, respectively. Astaxanthin contents of 2.1 ± 0.1% and 0.4 ± 0.1% were observed in H. pluvialis and C. zofingiensis grown in DWW. Minimum freshwater consumption for cultivation was 69.93 L/g astaxanthin in control growth media, which could be eliminated by cultivation of microalgae in DWW. COD, TN, and TP removal efficiencies were in the range of 94%-96%, 79%-81%, and 57%-79%, respectively, indicating capability for simultaneous biomass production and phycoremediation. Presence of carbohydrates and lipids in residual biomass suggested the applicability as feedstock for biorefining. Potential avenues to integrate wastewater treatment, astaxanthin production, and valorization of residual biomass were discussed in context of high-value product first biorefineries.

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Section: Chloromonas Playfariisupporting

confidence: 66%

“…92.2 a 100.0 d Daneshvar et al [77] Tetraselmis suecica n.r. 83.2 a 100.0 d Anabaena ambigua 95.9 98.9 e 98.4 d Rani et al [78] Chlorella vulgaris 96.4 99.0 e 98.8 b…”

Section: Chloromonas Playfariimentioning

confidence: 99%

Sustainable cultivation of Haematococcus pluvialis and Chromochloris zofingiensis for the production of astaxanthin and co‐products

et al. 2022

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“…Microalgae constituents of different species are listed in Table 1 below. Wastewater treatment using microalgae is an eco-friendly process that can eliminate pollution [24]. Microalgae have potential in treating POME, because algae grow using solar energy via photosynthesis, and converting them into biomass can bring profit by utilizing nitrogen and phosphorous compound that are present in POME.…”

Section: Microalgae Cultivation In Pome and Benefits Of Treating Pome With Microalgaementioning

confidence: 99%

“…Treating POME with microalgae is a better way compared to the conventional method such as anaerobic digestion, as the latter is unable to fulfil the requirements set by Department of Environment, as the BOD level exceeds 100 mg/L before release to the aquatic environment [35]. Treating POME with microalgae is very beneficial for all the palm oil manufacturers due to its environmental-friendliness and economical-friendliness [24]. In addition, one of the benefits of microalgae usage is that it can absorb carbon dioxide from the atmosphere and release oxygen into the system, which can lead to higher oxygen concentration in the system [15].…”

Section: Microalgae Cultivation In Pome and Benefits Of Treating Pome With Microalgaementioning

confidence: 99%

Microalgae Cultivation in Palm Oil Mill Effluent (POME) Treatment and Biofuel Production

et al. 2021

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Palm oil mill effluent (POME) is the wastewater produced during the palm oil sterilization process, which contains substantial amounts of nutrients and phosphorous that are harmful to the environment. High BOD and COD of POME are as high as 100,000 mg/L, which endanger the environment. Effective pre-treatment of POME is required before disposal. As microalgae have the ability of biosorption on nutrients and phosphorous to perform photosynthesis, they can be utilized as a sustainable POME treatment operation, which contributes to effective biofuel production. Microalgae species C. pyrenoidosa has shown to achieve 68% lipid production along with 71% nutrient reduction in POME. In this study, a brief discussion about the impacts of POME that will affect the environment is presented. Additionally, the potential of microalgae in treating POME is evaluated along with its benefits. Furthermore, the condition of microalgae growth in the POME is also assessed to study the suitable condition for microalgae to be cultivated in. Moreover, experimental studies on characteristics and performance of microalgae are being evaluated for their feasibility. One of the profitable applications of POME treatment using microalgae is biofuel production, which will be discussed in this review. However, with the advantages brought from cultivating microalgae in POME, there are also some concerns, as microalgae will cause pollution if they are not handled well, as discussed in the last section of this paper.

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Simultaneous production of flavonoids and lipids from Chlorella vulgaris and Chlorella pyrenoidosa

Yadavalli

Ratnapuram²,

Motamarry³

et al. 2020

Biomass Conv. Bioref.

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Eco-Friendly Approach for Treating Dairy Effluent and Lipid Estimation Using Microalgae

Cited by 5 publications

References 14 publications

Sustainable cultivation of Haematococcus pluvialis and Chromochloris zofingiensis for the production of astaxanthin and co‐products

Sustainable cultivation of Haematococcus pluvialis and Chromochloris zofingiensis for the production of astaxanthin and co‐products

Microalgae Cultivation in Palm Oil Mill Effluent (POME) Treatment and Biofuel Production

Simultaneous production of flavonoids and lipids from Chlorella vulgaris and Chlorella pyrenoidosa

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