CO2 biocapture by Scenedesmus sp. grown in industrial wastewater

López-Pacheco, Itzel Y.; Castillo-Vacas, Eduardo Israel; Castañeda-Hernández, Lizbeth; Gradiz-Menjivar, Angie; Rodas-Zuluaga, Laura Isabel; Castillo-Zacarías, Carlos; Sosa‐Hernández, Juan Eduardo; Barceló, Damià; Iqbal, Hafiz M.N.; Parra‐Saldívar, Roberto

doi:10.1016/j.scitotenv.2021.148222

Cited by 17 publications

(6 citation statements)

References 71 publications

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“…For the treatment taken as a control group on day 0, the ANOVA-Dunnett statistical analysis indicated a significant reduction in COD in T1, which decreased to 69.69% from 1.668 mg/L in 20 days; in T2, to 68.29% from 280 mg/L in 20 days; in T3, to 86.53% from 4.362 mg/L in 20 days; in T4, to 87.25% from 1.295 mg/L in 8 days; and in T5, to 86.39% from 1.863 mg/L within 20 days (Figure 5c). These results are similar to those of [40] where the COD reduction of 82% achieved in this investigation was superior than the result obtained with Scenedesmus sp. [40].…”

Section: Soluble Chemical Oxygen Demand (Cod)supporting

confidence: 89%

“…These results are similar to those of [40] where the COD reduction of 82% achieved in this investigation was superior than the result obtained with Scenedesmus sp. [40]. Comparable amounts of food waste leachate, nejayote, and BBM were shown to result in decreased COD values, as seen by the surface mixture design graph shown in Figure 5e.…”

Section: Soluble Chemical Oxygen Demand (Cod)supporting

confidence: 89%

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Nejayote and Food Waste Leachate as a Medium for Scenedesmus acutus and Haematococcus pluvialis Production: A Mixture Experimental Design

Garza-Valverde,

García-Gómez,

Nápoles-Armenta

et al. 2024

Water

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The wastewaters of nejayote and food waste leachate are polluting effluents with a high load of organic matter that cause great problems when discharged to water receptors. In this work, we investigated the treatment of nejayote wastewaters and food waste leachate for the production of microalgae Scenedesmus acutus and Haematococcus pluvialis. For Scenedesmus acutus, treatment with 10% food waste leachate and 90% growth medium resulted in a concentration of 5.34 g/L in 20 days (μmax = 0.16/day). Meanwhile, 10% nejayote and 90% medium growth produced 4.45 g/L at 20 days (μmax = 0.13/d). A significant reduction of up to 82.6% ammonium, 84.1% orthophosphate, and 87.25% COD was also observed between the different treatments. For Haematococcus pluvialis, the treatment of 90% food waste leachate and 10% growth medium produced a concentration of 4.73 g/L at 6 days (μmax = 0.71/day), while the mixture of 25% najayote, 25% food waste leachate, and 50% growth medium produced a concentration of 5.5 g/L at 20 days (μmax = 0.25/dat). A reduction of up to 97.8% ammonia, 97.4% orthophosphate, and 73.19% COD was also recorded. These findings demonstrated the potential to cultivate microalgae and extract biomolecules for commercial purposes.

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Section: Soluble Chemical Oxygen Demand (Cod)supporting

confidence: 89%

Section: Soluble Chemical Oxygen Demand (Cod)supporting

confidence: 89%

Nejayote and Food Waste Leachate as a Medium for Scenedesmus acutus and Haematococcus pluvialis Production: A Mixture Experimental Design

Garza-Valverde,

García-Gómez,

Nápoles-Armenta

et al. 2024

Water

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“…New, sustainable protocols are needed to improve raw biomass processing [76]. As a result of microalgae bioremediation processes such as CO 2 phycocapture, water treatment, and phycopigments production, microalgae biomass will be generated, and its content properties can be used to develop application products that allowed the microalgae production and processing to be profitable to implement [77][78][79][80].…”

Section: Discussionmentioning

confidence: 99%

Effects of UV and UV-vis Irradiation on the Production of Microalgae and Macroalgae: New Alternatives to Produce Photobioprotectors and Biomedical Compounds

et al. 2022

Self Cite

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In the last decade, algae applications have generated considerable interest among research organizations and industrial sectors. Bioactive compounds, such as carotenoids, and Mycosporine-like amino acids (MAAs) derived from microalgae may play a vital role in the bio and non-bio sectors. Currently, commercial sunscreens contain chemicals such as oxybenzone and octinoxate, which have harmful effects on the environment and human health; while microalgae-based sunscreens emerge as an eco-friendly alternative to provide photo protector agents against solar radiation. Algae-based exploration ranges from staple foods to pharmaceuticals, cosmetics, and biomedical applications. This review aims to identify the effects of UV and UV-vis irradiation on the production of microalgae bioactive compounds through the assistance of different techniques and extraction methods for biomass characterization. The efficiency and results focus on the production of a blocking agent that does not damage the aquifer, being beneficial for health and possible biomedical applications.

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“…The findings showed that Spirulina NCU-Sm grew well in raw soy sauce wastewater and produced a maximum biomass of 1.984 g L −1 with a removal efficiency 93.86% for NH4-N, 81.76% for TN and 84.08% for COD [120]. Nutrients and COD removals from industrial wastewater by microalgae species [17,85,91,[94][95][96][98][99][100]103,[105][106][107]109,110,113,115,117,118,120,123,124,[126][127][128][129][130][131][132][133][134][135][136][137].…”

Section: Microalgae Treatment Of Industrial Wastewatermentioning

confidence: 97%

Recent Trends on Domestic, Agricultural and Industrial Wastewaters Treatment Using Microalgae Biorefinery System

Bakraoui

Slaoui²,

Mabrouki

et al. 2022

Applied Sciences

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In addition to producing bioenergy and molecules with high added value, microalgae have been recognized as an efficient microorganism for wastewater treatment. However, a major obstacle preventing its widespread use is the high energy cost of pretreatment, cultivation and downstream processes. Different types of wastewaters have been tested as culture mediums for microalgal biorefinery system. This review gives a summary of the most used microalgae strains for wastewater treatment, as well as information on the physical and chemical characteristics of domestic, agricultural, and industrial wastewaters. It also discusses wastewater pretreatment techniques, nutrient uptake and removal, biomass production and biomolecules productivities. There is also discussion on how microalgae remove contaminants from wastewater. Additionally, the problems and restrictions of microalgae-based wastewater treatment are explored, and recommendations are made for additional study and advancement. This literature review demonstrates that microalgae monoculture systems have proven to be beneficial as an innovative wastewater treatment technology, due to its high efficiencies in pollutant removals and biomolecule production; however, the upstream and downstream treatment pose a limit to industrialize the process. Until now, there has been no conventional design of the wastewater treatment process using microalgae in the biorefinery system, which constitutes a huge gap to assess a real life cycle assessment (LCA) and techno economic analysis (TEA).

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CO2 biocapture by Scenedesmus sp. grown in industrial wastewater

Cited by 17 publications

References 71 publications

Nejayote and Food Waste Leachate as a Medium for Scenedesmus acutus and Haematococcus pluvialis Production: A Mixture Experimental Design

Nejayote and Food Waste Leachate as a Medium for Scenedesmus acutus and Haematococcus pluvialis Production: A Mixture Experimental Design

Effects of UV and UV-vis Irradiation on the Production of Microalgae and Macroalgae: New Alternatives to Produce Photobioprotectors and Biomedical Compounds

Recent Trends on Domestic, Agricultural and Industrial Wastewaters Treatment Using Microalgae Biorefinery System

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