Microalgae growth in polluted effluents from the dairy industry for biomass production and phytoremediation

Labbé, José Ignacio; Ramos-Suárez, Juan Luis; Hernández-Pérez, Alexis; Baeza, Andrea; Hansen, Felipe

doi:10.1016/j.jece.2016.12.040

Cited by 39 publications

(11 citation statements)

References 43 publications

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“…The characteristics of the final effluent OWW as given in Table (1) shows that it contains nitrogen, phosphorus and other micronutrients in suitable levels that may sustain microalgae growth. Previous studies showed that wastewater containing nutrients was rich media for cultivating algae (Arbib et al, 2014;Mukherjee et al, 2016;Labbé et al, 2017).…”

Section: Microalgae Growth In Owwmentioning

confidence: 99%

“…Microalgae are favorable for use in treating wastewaters due to their ability to take up nutrients and convert them into biomass. Further, the obtained biomass from microalgae cultivation in wastewater can be used as a commercial value added product such as biodiesel (El Shimi and Mostafa, 2016), pharmaceuticals, food, animal feed, chemicals and cosmetics (Labbé et al, 2017) and biofertilizers (Rashad et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Microalgae growth in effluents from olive oil industry for biomass production and decreasing phenolics content of wastewater

Mostafa¹,

El-Hassanin²,

Soliman³

et al. 2019

Egypt. J. of Aquatic Biolo. and Fish.

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_______________ Keywords:Blue-green algae Cyanobacteria Treatment Phenol Olive oil WastewaterThe present study investigates the possibility of growing microalgae in wastewater generated from olive oil production factory. Wastewater samples were collected from the three stages of olive oil production as well as from the final effluent of the factory. The analysis results of the effluent revealed that it contains: nitrogen (0.31%), phosphorus (0.59%), potassium (0.70%), calcium (741ppm), iron (59.78 ppm), magnesium (301 ppm), cupper (5.45 ppm), sulfur (314 ppm) and high amount of phenolic compounds (2999.4 mg /L). Nostoc muscorum, Anabaena oryzae and Spirulina platensis were chosen as three blue-green microalgae and were cultivated in standard media and two media from olive oil industry effluents. The three microalgae were cultivated over 30 days period on olive effluent (OWW) and diluted effluent (OWW 50%). The growth of the three strains in diluted media OWW50% showed better results as expressed from the total chlorophyll, optical density and biomass dry weight. The total chlorophyll content values of Spirulina, Anabaena and Nostoc genera were 2.3, 1.87 and 1.87µg/L, respectively. Dry weights obtained in diluted OWW50% were 1.72, 1.45 and 1.28g/L for Spirulina, Anabaena and Nostoc, respectively. The values of optical density were 0.38 for Spirulina, 0.29 for Anabena and 0.25 in case of Nostoc. During algae cultivation, the initial phenols concentration was reduced by 50-60% in 15 days, and more than 80% of phenols were removed by day 30. Thus blue-green microalgae could be grown on olive oil wastewater for biomass production and wastewater treatment of phenolic compounds.

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Section: Microalgae Growth In Owwmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microalgae growth in effluents from olive oil industry for biomass production and decreasing phenolics content of wastewater

Mostafa¹,

El-Hassanin²,

Soliman³

et al. 2019

Egypt. J. of Aquatic Biolo. and Fish.

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“…The ability of microalgae to remove contaminants from various types of WW has been described in numerous studies. The phycoremediation process has been successfully applied to treat municipal WW [13], agricultural effluent [14], and various types of industrial WW, such as tannery WW [15], dairy industry effluents [16], and distillery WW [17]. De Alva et al [18] reported that during the cultivation of Scenedesmus acutus in pre-treated municipal water, TOC decreased by up to 77%, and phosphate and TAN load by up to 65% and 92%, respectively.…”

Section: Introductionmentioning

confidence: 99%

Phycoremediation of Landfill Leachate with Desmodesmus subspicatus: A Pre-Treatment for Reverse Osmosis

Kholomyeva

Vurm

Tajnaiová

et al. 2020

Water

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Reverse osmosis is widely used as one of the most effective and advanced technologies for the treatment of leachate from landfill sites. Unfortunately, high leachate contamination—above all, ammonia nitrogen—affects membrane selectivity and is reflected in permeate quality. Furthermore, iron contained in leachate can facilitate chelates forming, which reduces the membrane anti-fouling capacity. The addition of a pre-treatment step could alleviate the adverse impact of the pollutants. As such, we investigated pollutant removal by phycoremediation. Initial ecotoxicity tests of three algal strains (Scenedesmus obliquus (S. obliquus), Desmodesmus subspicatus (D. subspicatus), and Chlorella vulgaris (C. vulgaris)) identified D. subspicatus as the strain most tolerant to leachate toxicity. Subsequently, D. subspicatus was cultivated in six landfill leachates of different origin and, after the cultivation, removal rates were determined for ammonia nitrogen and iron. Furthermore, the impact of input leachate parameters on remediation efficiency was also investigated. By phycoremediation, the reduction of up to 100% in iron and 83% in ammonia nitrogen load was achieved, which demonstrates the high potential of microalgae to mitigate environmental risks and reduce membrane foulant content.

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“…Biological processes such as aerobic and anaerobic, physicochemical processes such as electrocoagulation, membrane process and adsorption are widely used to treat the dairy effluent due to the presence of rich in organic matter [9,10]. However, the above-mentioned treatment processes produce maximum amount of sludge, periodical maintenance, hydraulic/solid retention time, requirement of pretreatment, cost of electrodes/coagulants/adsorbents, recovery of coagulants/adsorbents, difficulties faced in disposal of sludge, cost of electricity and membrane, periodical replacement of electrode/membrane and toxicity of effluent leads to limitation of the process [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Experimental analysis on the synergistic effect of combined use of ozone and UV radiation for the treatment of dairy industry wastewater

Suresh¹,

Ramesh²,

Chenniappan

et al. 2020

Environmental Engineering Research

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The present study focused on the various advanced oxidation processes; Ozone, UV radiation, O 3 /H 2 O 2 , O 3 /UV, UV/H 2 O 2 and O 3 /UV/H 2 O 2 for treatability of dairy industry wastewater. With this aim, the trials were carried out in cylindrical reactor fortified with UV radiation and Ozone injection. Efficiency of the treatment process was evaluated considering Chemical Oxygen Demand (COD), lactose reduction and process parameters were determined to be reaction time, pH, circulation rate, and H 2 O 2 dosage. 32.5%, 35.2% , 25%, 83% COD and 40.6%, 43.6%, 38.2%, 80% lactose reduction efficiency were obtained under the operating conditions for O 3 /H 2 O 2 , O 3 /UV, UV/H 2 O 2 and O 3 /UV/H 2 O 2 processes, respectively. As per this outcome, UV/H 2 O 2 /O 3 process gave more than 65% of COD and 52.36% of lactose reduction efficiency than other hybrid processes. Optimum conditions for UV/H 2 O 2 /O 3 process (pH = 5, time = 180 mins, circulation rate = 50 mL/h and H 2 O 2 dosage of 0.5 mL) resulted in 88% of COD and 93.4% lactose reduction.

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Microalgae growth in polluted effluents from the dairy industry for biomass production and phytoremediation

Cited by 39 publications

References 43 publications

Microalgae growth in effluents from olive oil industry for biomass production and decreasing phenolics content of wastewater

Microalgae growth in effluents from olive oil industry for biomass production and decreasing phenolics content of wastewater

Phycoremediation of Landfill Leachate with Desmodesmus subspicatus: A Pre-Treatment for Reverse Osmosis

Experimental analysis on the synergistic effect of combined use of ozone and UV radiation for the treatment of dairy industry wastewater

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