Photosynthetic performance and nutrient removal from anaerobically digested effluents by microalgal biofilms DOI Creative Commons

Victor Okorie Mkpuma,

Navid R. Moheimani, Houda Ennaceri

и другие.

Journal of Water Process Engineering, Год журнала: 2024, Номер 65, С. 105811 - 105811

Опубликована: Июль 26, 2024

Selecting microalgal species with efficient nutrient uptake capabilities and employing an effective cultivation system are critical to successful AD effluent reclamation. While Scenedesmus sp. MUR 272 Chlorella 269 have shown efficiency in suspension-based ADFE treatment, biofilm-based presents a promising, cost-efficient alternative for valorization. Our study investigates the feasibility of cultivating these strains biofilm treat ADFE, using modified F/2 medium as control. Growth monitoring Chlorophyll (ChlF a) fluorescence measurement assessed algal performance biofilm. Biomass yield ranked follows: ADFE>Scenedesmus MF/2>Chlorella MF/2. Both demonstrated significantly higher biomass productivity than ChlF data revealed that maintained relatively more stable photosynthetic culture progressed. exhibited similar induction curve both F/2. intensity increased progressed, decreased till day 10, especially at J I step, suggesting presence stress factor culture. Efficient removal was achieved 87–100 % ammoniacal nitrogen (NNH3) 73–85 phosphate. More protein carbohydrates were produced on 4 10 species, showing metabolites Scenedesmus. These species' hold promise valorization effluents.

Язык: Английский

Biocompounds from wastewater-grown microalgae: a review of emerging cultivation and harvesting technologies DOI
Alexia Saleme Aona de Paula Pereira, Thiago Abrantes Silva, Iara Barbosa Magalhães

и другие.

The Science of The Total Environment, Год журнала: 2024, Номер 920, С. 170918 - 170918

Опубликована: Фев. 12, 2024

Язык: Английский

Процитировано

19

Microalgal biofilm cultivation on lignocellulosic based bio-carriers: Effects of material physical characteristics on microalgal biomass production and composition DOI

Rumeng Lu,

Biyuan Hong,

Yunpu Wang

и другие.

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161656 - 161656

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

5

Biomass and hydrocarbon production from Botryococcus braunii: A review focusing on cultivation methods DOI Creative Commons

Ehsan Khorshidi Nazloo,

Moslem Danesh,

Mohammad‐Hossein Sarrafzadeh

и другие.

The Science of The Total Environment, Год журнала: 2024, Номер 926, С. 171734 - 171734

Опубликована: Март 18, 2024

Botryococcus braunii has garnered significant attention in recent years due to its ability produce high amounts of renewable hydrocarbons through photosynthesis. As the world shifts towards a greener future and seeks alternative sources energy, cultivation B. extraction can potentially provide viable solution. However, development sustainable cost-effective process for cultivating is not without challenges. Compared other microalgae, grows very slowly, making it time-consuming expensive biomass. In response these challenges, several efforts have been put into optimizing systems increase biomass growth hydrocarbon production efficiency. This review presents comparative analysis different systems, factors affecting productivity are critically discussed. Attached offers advantages, including higher less water requirement compared liquid culture. These advantages hold potential enhancing economic viability microalgal fuels. Here, we propose that employing attached cultivation, coupled with milking technique extraction, represents an efficient approach generating fuels from braunii. Nevertheless, further research needed ascertain large-scale implementation.

Язык: Английский

Процитировано

10

Progress of non-destructive hydrocarbon extraction technology of Botryococcus braunii DOI Creative Commons
Houda Ennaceri, Emeka G. Nwoba,

Christina N. Ogbonna

и другие.

Algal Research, Год журнала: 2023, Номер 73, С. 103156 - 103156

Опубликована: Май 31, 2023

Coal, petroleum and natural gas have remained the premium energy sources driving economy sustaining population growth for years. Global human has shown a 7-fold increase in last two centuries and, consequently, an astronomical global demand. Interestingly, rising warming, climate change destruction of environment are trends parallel with world profile continual dependence on fossil fuels. Actions to mitigate these challenges ignited interest autotrophic production hydrocarbons from microalgae as alternative fossil-based The microalgal strain, Botryococcus braunii, offers excellent platform renewable production. B. braunii unusual fascinating attributes, by producing liquid extracellularly, classical non-invasive, non-destructive extraction technique known milking can be applied. In process, extracellular matrix algae repetitively extracted without need cell harvesting, dewatering, disruption, purification metabolites, thereby reducing downstream processing costs. this way, do not grow cellular biomass but act only light-driven catalysts convert CO2 into that accumulate externally medium. work, different lipid techniques discussed depth, taking critical analysis effect each process hydrocarbon recovery purity well their economic viability. Moreover, composition factors influencing is comprehensively reviewed. critically discussed, cultivation protocols suitable strategies improve highlighted. We indicate switchable solvent-based exceptional potential biofilm-based holds great promise reduce However, more research needed large-scale implementation feasibility.

Язык: Английский

Процитировано

21

Nano-clay modified membranes: A promising green strategy for microalgal antifouling filtration DOI Creative Commons
Houda Ennaceri,

Victor Okorie Mkpuma,

Navid R. Moheimani

и другие.

The Science of The Total Environment, Год журнала: 2023, Номер 902, С. 166479 - 166479

Опубликована: Авг. 21, 2023

Membrane fouling is a major challenge which limits the sustainable application of membrane filtration-based microalgal harvesting at industrial level. leads to increased operational and maintenance costs represents obstacle downstream processing. Nano-clays are promising naturally occurring nanoparticles in fabrication due their low-cost, facile preparation, superior properties terms surface hydrophilicity, mechanical stability, resistance against chemicals. The modification using nano-clays approach improve membranes resistance. However, positive effects nano-clay particles on often limited by aggregation poor adhesion base polymeric matrix. This review surveys recent efforts achieve anti-fouling behavior with fillers. Further, strategies better incorporation polymer matrix summarised, factors that govern fouling, adhesion, agglomeration leaching discussed depth.

Язык: Английский

Процитировано

19

Biofilm and suspension-based cultivation of microalgae to treat anaerobic digestate food effluent (ADFE) DOI Creative Commons

Victor Okorie Mkpuma,

Navid R. Moheimani, Houda Ennaceri

и другие.

The Science of The Total Environment, Год журнала: 2024, Номер 924, С. 171320 - 171320

Опубликована: Март 6, 2024

Anaerobic digestion of organic waste produces effluent (ADE) that requires further treatment. Biofilm-based microalgal cultivation is a favoured approach to ADE This study compared Chlorella sp. MUR 268 and Scenedesmus 269 in biofilm suspension cultures treat anaerobic digestate food (ADFE). had significantly higher biomass (50.38 g m−2) than (9.39 m−2). Conversely, yielded 1.5 times more (1.2 L−1) suspension. 49.3 % areal productivity suspension, while showed 87.3 growth removed nutrients ADFE. In COD, ammoniacal nitrogen, phosphate were reduced 94.9, 5.2, 5.98 mg L−1 for 268, 245, 2.89, 3.22 269, respectively. biofilm, achieved reductions 149.9, 1.16, 3.57 L−1, 100.2, 6.9 2.07 L−1. Most these values are below the recommended discharge standard, highlighting efficacy this system ADFE Biofilm fixed 68–81 nitrogen was biomass, only 55–71 ended biomass. 88 phosphorus, phosphorus (55 %) counterpart (34 %). design offers advantages like simplified, cost-effective operation, easy recovery, water usage.

Язык: Английский

Процитировано

9

Mixed microalgal culture enhances biofilm adhesion during treatment of livestock wastewater: The role of extracellular polymeric substances DOI
Jiahua Liu,

Zengjun Yang,

Khinkhin Phyu

и другие.

Chemical Engineering Journal, Год журнала: 2024, Номер 498, С. 155580 - 155580

Опубликована: Сен. 7, 2024

Язык: Английский

Процитировано

9

Promoting symbiotic relationship between microalgae and bacteria in wastewater treatment processes: Technic comparison, microbial analysis, and future perspectives DOI

Cong-Cong Tang,

Yaru Hu,

Zhang-Wei He

и другие.

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 155703 - 155703

Опубликована: Сен. 1, 2024

Язык: Английский

Процитировано

9

Assessing global carbon sequestration and bioenergy potential from microalgae cultivation on marginal lands leveraging machine learning DOI Creative Commons
Minghao Chen, Yixuan Chen, Qingtao Zhang

и другие.

The Science of The Total Environment, Год журнала: 2024, Номер 948, С. 174462 - 174462

Опубликована: Июль 9, 2024

This comprehensive study unveils the vast global potential of microalgae as a sustainable bioenergy source, focusing on utilization marginal lands and employing advanced machine learning techniques to predict biomass productivity. By identifying approximately 7.37 million square kilometers suitable for cultivation, this research uncovers extensive these underutilized areas, particularly within equatorial low-latitude regions, development. approach mitigates competition food resources conserves freshwater supplies. Utilizing cutting-edge algorithms based robust datasets from cultivation experiments spanning 1994 2017, integrates essential environmental variables map out detailed projection yields across variety landscapes. The analysis further delineates carbon sequestration two effective methods: Photobioreactors (PBRs), Open Ponds, with PBRs showcasing exceptional productivity, average daily productivity 142.81mgL

Язык: Английский

Процитировано

7

Effect of light intensity on Chlorella sp. biofilm growth on anaerobically digested food effluents (ADFE) DOI Creative Commons

Victor Okorie Mkpuma,

Navid R. Moheimani, Houda Ennaceri

и другие.

Journal of Environmental Management, Год журнала: 2024, Номер 371, С. 123015 - 123015

Опубликована: Окт. 31, 2024

Optimizing light conditions in any culture design for effluent treatment is crucial maximizing microalgae growth and nutrient uptake. We investigated the impact of low (53 ± 1 μmol m

Язык: Английский

Процитировано

7