Impact of wastewater cultivation on pollutant removal, biomass production, metabolite biosynthesis, and carbon dioxide fixation of newly isolated cyanobacteria in a multiproduct biorefinery paradigm

Shahid, Ayesha; Usman, Muhammad; Atta, Zahida; Musharraf, Syed Ghulam; Malik, Sana; Elkamel, Ali; Shahid, Muhammad; Alkhattabi, Nuha A.; Gull, Munazza; Mehmood, Muhammad Aamer

doi:10.1016/j.biortech.2021.125194

Cited by 42 publications

(9 citation statements)

References 49 publications

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“…Specific microorganisms responsible on the degradation of the water quality parameters need to be identified in order to fully unlock the potential of eco‐enzyme in mediating iron contaminated environment. This is also useful to encourage the use of potential microorganisms for future applications (Aamer Mehmood et al., 2021; Shahid et al., 2021a; Shahid et al., 2021b; Syafiuddin et al., 2021). In general, this study provided a cheap alternative method for the remediation of polluted water compared to the existing methods available in literature (Al Farraj, Hadibarata, et al., 2019; Al Farraj, Elshikh, et al., 2019; Hadibarata et al., 2019; Mostafa et al., 2019; Ratnasari et al., 2021a; Ratnasari et al., 2021b; Syafiuddin & Boopathy, 2021; Syafiuddin & Fulazzaky, 2021; Syafiuddin et al., 2020; Syafiuddin et al., 2017; Syafiuddin et al., 2018).…”

Section: Resultsmentioning

confidence: 99%

Improving the water quality of iron‐containing ponds using fermented kitchen wastes

Yong

Halim

Liong³

et al. 2021

Environmental Quality Mgmt

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To elucidate the efficacy of eco-enzyme in mediating contaminated waters, an onsite investigation was conducted spanning over a 5-month duration on three ponds receiving iron-containing groundwater continuously. Eco-enzyme was applied at designated dosages and time. Water samples were collected fortnightly for in situ monitoring of water quality. Parameters determined included total suspended solids (TSS), pH, alkalinity, chemical oxygen demand (COD), biochemical oxygen demand (BOD 5 ), ammoniacal-nitrogen (NH 3 ), and dissolved oxygen. During the investigation, ecoenzyme application was halted for nearly a month owing to the enforcement of Movement Control Order to curb the rising Covid-19 cases. The results revealed that the application of eco-enzyme has improved the overall water quality of the three ponds.A 99.9% of TSS removal was achieved. For the other parameters measured, the concentration fluctuated over time and the water quality status of the pond interchanged between slightly polluted and clean. The elevation of the water quality was largely dependent on the frequency of the eco-enzyme application. This study, therefore, concludes that eco-enzyme possessed the capability to enhance the quality of contaminated water.

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Section: Resultsmentioning

confidence: 99%

Improving the water quality of iron‐containing ponds using fermented kitchen wastes

Yong

Halim

Liong³

et al. 2021

Environmental Quality Mgmt

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“…For example, Shahid, Usman, et al. (2021) also studied the potential of newly isolated cyanobacteria strains for the remediation of urban wastewater. Their obtained result showed that cyanobacterial strains, that is, Oscillatoria sp.…”

Section: Microalgae‐based Wastewater Bioremediation Approachmentioning

confidence: 99%

Microalgal‐based remediation of wastewater: A step towards environment protection and management

Goswami

Agrawal

Verma

2022

Environmental Quality Mgmt

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The widespread problem of water pollution is jeopardizing the ecosystem and our health. The contamination of freshwater through anthropogenic activities and its discharge into the ecosystems leads to the generation of wastewater. Wastewater mainly contains nutrient loads and the recent emerging contaminants such as pharmaceutical wastes, drugs, micropollutants, heavy metals, pesticides, phenolic compounds, and dyes have increased and contaminated the aquatic bodies. The existence of these emerging pollutants can cause serious threats to ecosystems and humans. Thus, conventional wastewater treatment was focused on the removal of solid compounds or nutrient loads. However, it could not remove the emerging contaminants and later microalgae that are photosynthetic eukaryotic microorganisms were found to be an efficient and eco‐friendly source for the remediation of diverse kinds of wastewater. Apart from nutrient removal, the algal biomass acts as the efficient feedstock for the generation of bioenergy products. However, limited data have been published regarding the remediation of emerging pollutants through microalgae. Thus, focusing on the recent gaps, the current review provides an overview of the potential of microalgae for the remediation of nutrient loads. Critically deliberate the recent advances and detailed summary of microalgae potential for the remediation of wastewaters containing high nutrient loads especially focused on the remediation of different emerging contaminants. It highlights the advanced approaches used in the microalgae remediation process and provides comprehensive information about the different bioenergy products such as liquid, gaseous, and bioelectricity generated through the utilization of wastewater‐grown microalgae.

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“…Similarly, a novel cyanobacterium, Plectonema terebrans BERC10 cultivated in wastewater was found to efficiently biotransform wastewater derived nutrients to biofuel and value-added products. Higher biomass production of 140 mg L −1 day −1 , capable of sequestering CO 2 at 250 mg L −1 day −1 and produced carbohydrates and lipid at 58.68 and 39.25 mg g −1 day −1 , respectively [25]. Earlier the same group had explored the metabolic pathways attributing for lipid biosynthesis by recruiting robust microalgal strains and by adopting various genetic engineering approaches such as overexpression of enzymes, blocking the competitive pathways, transcriptional regulation, metabolic modeling, and so forth [26].…”

Section: Economic Significance Of Microalgaementioning

confidence: 99%

Bio‐engineering of microalgae: Challenges and future prospects toward industrial and environmental applications

Muthukrishnan

2022

J Basic Microbiol

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Microalgae are complex metabolic machineries whose potential has been continuously tapped for wide range of applications. Their suboptimal biomass yield and bioactives production remain the mainstay for their commercialization. To surpass the limitations, genetic engineering and its decisive role in strain improvement have led to the enhancement of quality and yield of products. Meanwhile, the sporadic use of genetic engineering tools specifically toward microalgal strains has limited their applicability. In this context, this article was mainly prepared to highlight the characteristics of microalgae and the introduction of omics approach for the improvement of strain for biorefinery processes. Furthermore, genome editing and gene-interfering tools to augment algal research using reference strains have been described. The progress made by genetic engineering in editing a gene using CRISPR-Cas9 and metabolic engineering of microalgae for biofuel production and CO 2 sequestration have been critically reviewed. As a futuristic alternative, the transgenic microalgae would compete with the existing resources reducing the dependency on fossil fuel in terms of cost, energy production, and efficacy.

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Impact of wastewater cultivation on pollutant removal, biomass production, metabolite biosynthesis, and carbon dioxide fixation of newly isolated cyanobacteria in a multiproduct biorefinery paradigm

Cited by 42 publications

References 49 publications

Improving the water quality of iron‐containing ponds using fermented kitchen wastes

Improving the water quality of iron‐containing ponds using fermented kitchen wastes

Microalgal‐based remediation of wastewater: A step towards environment protection and management

Bio‐engineering of microalgae: Challenges and future prospects toward industrial and environmental applications

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