Removal of micropollutants through bio-based materials as a transition to circular bioeconomy: Treatment processes involved, perspectives and bottlenecks

Mathew, Annu T.; Saravanakumar, M.P.

doi:10.1016/j.envres.2022.114150

Cited by 6 publications

(3 citation statements)

References 136 publications

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“…The eradicated biomass is considered a waste to be disposed of, but its valorization could help cut these costs. Nonetheless, since IAPS produces a large amount of readily available biomass, avoiding land conversion and competition with food, its biomass may represent a sustainable feedstock for different applications, ranging from bioenergy production to bio‐based materials (Carson et al., 2018; Ceriani et al., 2023; Mathew & Saravanakumar, 2022; Monteiro & Ferreira, 2022; Nackley et al., 2013; Velvizhi et al., 2022). This concept is crucial within the EU's “Next Generation EU” project (https://next-generation-eu.europa.eu) to achieve the goal of climate neutrality.…”

Section: Introductionmentioning

confidence: 99%

Woody and herbaceous invasive alien plant species‐derived biochars are potentially optimal for soil amendment, soil remediation, and carbon storage

Ceriani,

Dalle Fratte,

Agosto

et al. 2024

GCB Bioenergy

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Invasive alien plant species (IAPS) are a global problem, representing a threat to ecosystem functioning, biodiversity, and human health. Legislation requires the management and eradication of IAPS populations; yet, management practices are costly, require several interventions, and produce large amounts of waste biomass. However, the biomass of eradicated IAPS can become a resource by being used as feedstock for biochar production and, at the same time, implementing the management of IAPS. Here we carried out an in‐depth characterization of biochar produced at 550°C derived from 10 (five woody and five herbaceous) widespread IAPS in the central‐southern Alps region to determine their potential applications for soil amendment, soil remediation, and carbon storage. Biochar was produced at a laboratory scale, where its physicochemical characteristics, micromorphological features, and lead adsorption from aqueous solutions were measured. To investigate any possible trade‐offs among the potential biochar applications, a principal component analysis was performed. IAPS‐derived biochars exhibited relevant properties in different fields of application, suggesting that IAPS biomass can be exploited in a circular economy framework. We found coordinated variation and trade‐offs from biochars with high stability to biochars with high soil amendment potential (PC1), while the biochar soil remediation potential represents an independent axis of variation (PC2). Specifically, IAPS‐derived biochar had species‐specific characteristics, with differences between the woody and herbaceous IAPS, the latter being more suitable for soil amendment due to their greater pH, macronutrient content, and macropore area. Biochar derived from woody IAPS showed a greater surface area, smaller pores, and had higher lead adsorption potentials from aqueous solutions, hinting at their higher potential for heavy metal pollution remediation. Moreover, biochar derived from woody IAPS had a higher fixed carbon content, indicating higher carbon stability, and suggesting that their biochar is preferable for carbon sequestration in the view of climate change mitigation.

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Section: Introductionmentioning

confidence: 99%

Woody and herbaceous invasive alien plant species‐derived biochars are potentially optimal for soil amendment, soil remediation, and carbon storage

Ceriani,

Dalle Fratte,

Agosto

et al. 2024

GCB Bioenergy

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“…Two frequently used procedures in the removal of micropollutants utilizing biomaterials are adsorption and degradation. 14 Numerous researchers have demonstrated elevated levels of MPs in the aquatic environment. But, the limited number of available studies demonstrates MPs removal of a single conventional and advanced treatment technologies.…”

Section: Introductionmentioning

confidence: 99%

“…Two frequently used procedures in the removal of micropollutants utilizing biomaterials are adsorption and degradation. 14 …”

Section: Introductionmentioning

confidence: 99%

Micropollutant Removal Efficiency of Advanced Wastewater Treatment Plants: A Systematic Review

Belete,

Desye,

Ambelu

et al. 2023

Environ�Health�Insights

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Introduction: Various review papers have been published regarding the occurrence and fate of micropollutants (MPs). MPs in the aquatic environment are still not well reviewed to generate comprehensive summaries with a special focus on their removal from wastewater using conventional and advanced treatment processes. Therefore, this review aimed to provide a synopsis of the efficiency of the advanced wastewater treatment plants in the removal of MPs. Materials and methods: A systematic search of published literature was conducted on the National Library of Medicine (NLM) database, Web of Science, Joanna Briggs Institute (JBI) database, Scopus, and Google Scholar, based on studies with evidence of removal of MPs in the wastewater treatment process. Screening of the published articles was made using pre-specified inclusion and exclusion criteria. Results: Amongst the 1545 studies searched, 21 full-length articles were analyzed that showed 7 treatment options related to the removal of MPs from wastewater. MPs from wastewater effluents were successfully and effectively removed by advanced treatment techniques. Advanced Oxidation Processes (AOPs), membrane processes, and adsorption processes have all been shown to be potential solutions for the removal of MPs in advanced treatment plants (WWTPs). But, there are 2 critical issues associated with the application of the advanced treatment options which are high operational cost and the formation of dangerous by-products and concentrated residues. Conclusion: This study identified that the removal of MPs using WWTPs was commonly incomplete with varying removal efficiency. Therefore, the adaptation and scale-up of the cost-effective and efficient combined wastewater treatment technology are vital to creating an absolute barrier to MPs emissions.

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Remediation of Endocrine Disrupting Compounds and Organic Dye Pollutants Through Biosorbents in a Circular Bioeconomy: Prospects and Constraints

Mathew

Saravanakumar

2023

Environmental Science and Engineering

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Removal of micropollutants through bio-based materials as a transition to circular bioeconomy: Treatment processes involved, perspectives and bottlenecks

Cited by 6 publications

References 136 publications

Woody and herbaceous invasive alien plant species‐derived biochars are potentially optimal for soil amendment, soil remediation, and carbon storage

Woody and herbaceous invasive alien plant species‐derived biochars are potentially optimal for soil amendment, soil remediation, and carbon storage

Micropollutant Removal Efficiency of Advanced Wastewater Treatment Plants: A Systematic Review

Remediation of Endocrine Disrupting Compounds and Organic Dye Pollutants Through Biosorbents in a Circular Bioeconomy: Prospects and Constraints

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