Lessons learnt from a pilot study on residual dye removal by an aerated treatment wetland

Masi, Fabio; Rizzo, Anacleto; Bresciani, R.; Martinuzzi, N.; Wallace, Scott; Oirschot, D. Van; Macor, F.; Rossini, T.; Fornaroli, Riccardo; Mezzanotte, Valeria

doi:10.1016/j.scitotenv.2018.08.113

Cited by 28 publications

(6 citation statements)

References 29 publications

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“…In the field of azo-dyes removal, a lot of investigations deal with either homogeneous or heterogeneous light-supported approaches, mainly focusing on the development of new photocatalysts or checking the effect of operating conditions. Pilot scale studies are only few [33][34][35] and, furthermore, a homogeneous comparison of the two approaches is missing and no attempts to conceptualise the possible scale up of the technologies is currently available. Elements of choice must be the conversion achievable as a function of time, of course, but also elements to ascertain the scalability of the processes and their economic impact.…”

Section: Introductionmentioning

confidence: 99%

Photochemical vs. photocatalytic azo-dye removal in a pilot free-surface reactor: Is the catalyst effective?

Bahadori

Rapf

Michele

et al. 2020

Separation and Purification Technology

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Section: Introductionmentioning

confidence: 99%

Photochemical vs. photocatalytic azo-dye removal in a pilot free-surface reactor: Is the catalyst effective?

Bahadori

Rapf

Michele

et al. 2020

Separation and Purification Technology

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“…In addition, the treated wastewater was found to cause no harm based on a fish toxicity assay. Another study based on wetlands system (but with aeration) was carried out by Masi and co-workers [107]. The group assessed color removal based on three different wavelengths and different influent concentrations, achieving results that varied from a negative color removal (−58%) to a positive decolorization of 82%.…”

Section: Environmental Samplesmentioning

confidence: 99%

Degradation of Azo Dyes: Bacterial Potential for Bioremediation

et al. 2022

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The use of dyes dates to ancient times and has increased due to population and industrial growth, leading to the rise of synthetic dyes. These pollutants are of great environmental impact and azo dyes deserve special attention due their widespread use and challenging degradation. Among the biological solutions developed to mitigate this issue, bacteria are highlighted for being versatile organisms, which can be applied as single organism cultures, microbial consortia, in bioreactors, acting in the detoxification of azo dyes breakage by-products and have the potential to combine biodegradation with the production of products of economic interest. These characteristics go hand in hand with the ability of various strains to act under various chemical and physical parameters, such as a wide range of pH, salinity, and temperature, with good performance under industry, and environmental, relevant conditions. This review encompasses studies with promising results related to the use of bacteria in the bioremediation of environments contaminated with azo dyes in the most diverse techniques and parameters, both in environmental and laboratory samples, also addressing their mechanisms and the legislation involving these dyes around the world, showcasing the importance of bacterial bioremediation, specialty in a scenario in an ever-increasing pursuit for sustainable production.

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“…CW has risen in popularity and has been widely applied at the global level for various wastewater treatment applications due to its good treatment efficiency, low cost of operation and maintenance, and aesthetic value [37,38]. However, it is important to note that CW is a biofilm-based wastewater treatment technology.…”

Section: Wts Used As Substrate In Developing Constructed Wetland Treamentioning

confidence: 99%

Waterworks Sludge: An Underrated Material for Beneficial Reuse in Water and Environmental Engineering

Zhao

Nzihou

Ren

et al. 2020

Waste Biomass Valor

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Waterworks sludge refers to the inevitable suspended and dissolved solids produced during the water purification process when producing tap water where Al-salt and/or Fe-salt are used as coagulant worldwide. Waterworks sludge is dewatered and the resultant cakes have been treated as "waste" for landfill as their major final disposal solution for a long time in practice. As waterworks sludge is the residual of potable water treatment process, it is not harmful and without toxic elements such as heavy metals in most cases in comparison to sewage sludges for instance. Actually, waterworks sludge is an underrated material with huge potential for beneficial reuse as raw material in water and environmental engineering. However, little was significantly progressed on this topic until the last two decades. Research and development (R&D) with special interest and focus on waterworks sludge reuse was conducted in our group in the last 15 years and this paper reports and discusses the main work and its novel application profile. Overall, it is believed that the R&D of waterworks sludge is useful and will help to develop national strategy of the entire waterworks sludge management, allowing its transformation from a "waste" into value-added products, and thus contribute to sustainable development.

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Lessons learnt from a pilot study on residual dye removal by an aerated treatment wetland

Cited by 28 publications

References 29 publications

Photochemical vs. photocatalytic azo-dye removal in a pilot free-surface reactor: Is the catalyst effective?

Photochemical vs. photocatalytic azo-dye removal in a pilot free-surface reactor: Is the catalyst effective?

Degradation of Azo Dyes: Bacterial Potential for Bioremediation

Waterworks Sludge: An Underrated Material for Beneficial Reuse in Water and Environmental Engineering

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