Decontamination of industrial wastewater using microalgae integrated with biotransformation of the biomass to green products

Amin, Mahwish; Tahir, Fatima; Ashfaq, Hira; Akbar, Iqra; Razzaque, Neha; Haider, Muhammad Nabeel; Xu, Jianren; Zhu, Hai‐Liang; Wang, Ning; Shahid, Ayesha

doi:10.1016/j.nexus.2022.100089

Cited by 28 publications

(10 citation statements)

References 135 publications

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“…Although microalgae show prolific growth and efficiently remediate nutrients in waste effluents, the process of utilizing wastewater treatment derived biomass for agriculture applications has certain inherent challenges. These include scalability of biomass production, presence of xenobiotic residues and heavy metals in biomass and contamination of cultures with bacteria, fungi and virus limiting their widespread application ( Abdelfattah et al., 2022 ; Amin et al., 2022 ). The first critical challenge in wastewater mediated biomass production is meeting the light requirement for cultures.…”

Section: Production Of Microalgae Based Bio Fertilizers and Biostimul...mentioning

confidence: 99%

“…This light penetration issue is a major challenge in scalability of wastewater mediated large scale biomass production. The average biomass yield obtained utilizing wastewater ranged between 0.7 g L -1 to 1.4 g L -1 with microalgae such as Scendesmsus spp., Chlorella spp., Desmodesmus spp., Tetradesmus spp., Selenastrum spp., predominantly effective in effluent treatment ( Rani et al., 2021 ; Amin et al., 2022 ). Further the biomass productivity significantly varies with respect to the temperature, pH, effluent nature and nutrient content ( Rani et al., 2021 ).…”

Section: Production Of Microalgae Based Bio Fertilizers and Biostimul...mentioning

confidence: 99%

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Microalgae as next generation plant growth additives: Functions, applications, challenges and circular bioeconomy based solutions

2023

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Sustainable agriculture practices involve the application of environment-friendly plant growth promoters and additives that do not negatively impact the health of the ecosystem. Stringent regulatory frameworks restricting the use of synthetic agrochemicals and the increase in demand for organically grown crops have paved the way for the development of novel bio-based plant growth promoters. In this context, microalgae biomass and derived agrochemicals offer novel sources of plant growth promotors that enhance crop productivity and impart disease resistance. These beneficial effects could be attributed to the presence of wide range of biomolecules such as soluble amino acid (AA), micronutrients, polysaccharides, phytohormones and other signaling molecules in microalgae biomass. In addition, their phototrophic nature, high photosynthetic efficiency, and wide environmental adaptability make them an attractive source of biostimulants, biofertilizers and biopesticides. The present review aims to describe the various plant growth promoting metabolites produced by microalgae and their effects on plant growth and productivity. Further, the effects elicited by microalgae biostimulants with respect to different modes of applications such as seed treatments, foliar spray and soil/root drenching is reviewed in detail. In addition, the ability of microalgae metabolites to impart tolerance against various abiotic and biotic stressors along with the mechanism of action is discussed in this paper. Although the use of microalgae based biofertilizers and biostimulants is gaining popularity, the high nutrient and water requirements and energy intensive downstream processes makes microalgae based technology commercially unsustainable. Addressing this challenge, we propose a circular economy model of microalgae mediated bioremediation coupled with biorefinery approaches of generating high value metabolites along with biofertilizer applications. We discuss and review new trends in enhancing the sustainability of microalgae biomass production by co-cultivation of algae with hydroponics and utilization of agriculture effluents.

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Section: Production Of Microalgae Based Bio Fertilizers and Biostimul...mentioning

confidence: 99%

Section: Production Of Microalgae Based Bio Fertilizers and Biostimul...mentioning

confidence: 99%

Microalgae as next generation plant growth additives: Functions, applications, challenges and circular bioeconomy based solutions

2023

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“…The third and final stage of treatment in WWTP is tertiary treatment, which involves advanced processes to remove any remaining pollutants and contaminants from the wastewater. This stage can include physical, chemical, and biological processes, such as membrane filtration, activated carbon adsorption, and disinfection [8].…”

Section: General Processmentioning

confidence: 99%

The recent application of bioreactor membrane (MBR) in China: for industrial sewage treatment in WWTP and its features

Zhang

2023

International Conference on Modern Medicine and Global Health (ICMMGH 2023)

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“…Often described methods to analyze heavy metals in water samples are flame atomic absorption (FAAS), [9] inductively coupled plasma atomic emission (ICP‐EOS), [29] UV‐Vis electronic absorption, [23] and fluorescence spectroscopy [30] . Although new techniques have gained visibility in trace‐metals detection like inductively coupled plasma atomic spectroscopy with mass detection (ICP‐MS), [31] Energy dispersive x‐ray fluorimetry (EDXRF), [20] and redissolving voltammetry [31] …”

Section: Introductionmentioning

confidence: 99%

“…The toxicity associated with those elements happens through bioaccumulation mechanisms since the human body absorbs these non-essential nutrients poorly. [7][8][9][10] The high damage caused to the body occurs by the inactivation of enzymes and proteins via the complexation of these cations with the sulfhydryl portion of these macromolecules. The intracellular transport of sodium, potassium, and important organic species is also compromised.…”

Section: Introductionmentioning

confidence: 99%

Bottom‐Up Synthesis Optimization Through The Design Of Experiments Using Blue N,S‐Carbon Dots With Interesting Affinity For Potentially Toxic Elements

Silva de Araújo,

Costa Ferrer,

Seagesser Santos

et al. 2023

ChemistrySelect

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Water contamination by heavy metals is a global issue for environmental safety and new technologies have been developed aim to evaluate the contamination, mainly by anthropogenic action. In this work, we synthesized blue light‐emitting carbon dots (CDs) from ionic sources for sensing applications of heavy metal cations in an aqueous solution. Spectroscopic and morphologic characteristics of the CDs were performed using Fourier transform infrared (FTIR) spectroscopy, fluorescence, and absorption techniques, besides transmission electron microscopy (TEM), dynamic light scattering (DLS), and zeta potential (ZP) measurements. Moreover, a two‐level full factorial design of experiments (DOE) was carried out to achieve the best hydrothermal parameters of synthesis, including the number of mols of precursors, temperature, and reaction time. The pH and buffer nature were evaluated for the quantification step to improve the N,S‐CDs response. We have obtained a range of 2.23–8.57 μmol L−1 (among Bi3+, Cd2+, Hg22+, Hg2+, Pb2+, and Sb3+) in terms of limit of detection (LOD). These aspects frame the material as a potential sensor for the identification of heavy metals in water.

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Decontamination of industrial wastewater using microalgae integrated with biotransformation of the biomass to green products

Cited by 28 publications

References 135 publications

Microalgae as next generation plant growth additives: Functions, applications, challenges and circular bioeconomy based solutions

Microalgae as next generation plant growth additives: Functions, applications, challenges and circular bioeconomy based solutions

The recent application of bioreactor membrane (MBR) in China: for industrial sewage treatment in WWTP and its features

Bottom‐Up Synthesis Optimization Through The Design Of Experiments Using Blue N,S‐Carbon Dots With Interesting Affinity For Potentially Toxic Elements

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