Sustainable membranes with FNs: Current and emerging research trends

Das, Pallabi; Dutta, Suman

doi:10.1016/b978-0-323-85946-2.00011-4

Cited by 3 publications

(2 citation statements)

References 102 publications

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“…Among them, membrane processes are the most sustainable and energy‐efficient options. Different membranes‐based techniques like liquid phase membrane separation (Reis et al, 2007), pressure driven membrane processes NF/RO (Arsuaga et al, 2006; Das & Dutta, 2022), and pervaporation (Gupta et al, 2003) have been used for phenolics treatment. Targeted catalysts are costly and often undergo degeneration.…”

Section: Removal Of Phenol and Its Derivativesmentioning

confidence: 99%

MEUF for removal and recovery of valuable organic components present in effluents: A process intensified technology

Das

Sharma

Singh

et al. 2022

Water Environment Research

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In recent years, the domain of the research space in novel separation process has been led by membrane systems as a panacea providing multifarious benefits of high separation efficiency, elimination of extreme process conditions, sustainability, and environment friendliness coupled with high operational flexibility. In this niche area, often, ultrafiltration is touted as a robust separation technique due to its high separation efficiency, membrane stability, and lower operating costs. The only drawback of relatively large pore size can be overcome by combining surfactant addition, leading to development of integrated processes termed as Micellar Enhanced Ultrafiltration. MEUF processes isolate and selectively separate valuable organics present in effluent streams.The process characteristics fit the bill as a typified example for process intensification Technology interventions for recycling of surfactants can enhance the cost-competitiveness of the process. This has the potential to develop into a broad-spectrum effluent treatment option with a change of surfactants for target contaminants. Here, in this review, we attempt to critically examine the unique features of this technology, development of spin-offs with wide-ranging applications. Specifically applications in removal of hazardous, and persistent components like dissolved organics have been critically studied. The focus was to highlight the crux of the novel technologies highlighting the efficacy and the underlying concept of process intensification. Practitioner Points• Role of MEUF as a sustainable process intensifying separation technique for removal and recovery of organics.• Novel process development using MEUF.• Comparative performance analysis to assess efficacy.• Discussions on future integrative process development.• Sustainability aspect of MEUF with possibility of byproduct recovery.

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Section: Removal Of Phenol and Its Derivativesmentioning

confidence: 99%

MEUF for removal and recovery of valuable organic components present in effluents: A process intensified technology

Das

Sharma

Singh

et al. 2022

Water Environment Research

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“…Polyurethanes, with their exceptional uptake capacities, have proven to be valuable materials in various stages of wastewater treatment processes. They are used for the fabrication of membranes and adsorbents with tailored properties, which are capable of selectively removing pollutants such as dyes, heavy metals, organic compounds, and microorganisms from wastewater streams [68,69].…”

Section: Introductionmentioning

confidence: 99%

Adsorption–Desorption Process to Separate Dyes from Tanning Wastewaters

Trucillo,

Lancia,

Di Natale

2023

Processes

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Wastewater production is a major environmental issue for the leather and textile industries: in a modern plant, several synthetic dyes are used in separated coloring batches whose wastewaters are usually mixed, diluted with other process water streams, and sent to a unique wastewater treatment plant. This includes specific physical and biochemical tertiary treatments to remove dyes efficiently. One of the main difficulties of these processes is the presence of multiple dyes, which cannot be treated with the same efficiency as a “wide-spectrum” process. This work explores the possibility of using conventional granular activated carbon (GAC) and a new polyurethane foam (PUF) for the adsorption of an acid red dye in the wastewater of a specific coloring batch of the tanning industry. The aim of this work is twofold: on the one hand, we aim to explore the performance of the new PUF sorbent; on the other hand, we aim to explore the possibility of using adsorption as an optimized pre-treatment for single-dye batches, which may take advantage of the presence of a single type of target dye and its higher concentration. The effluent is then sent to the wastewater treatment plant for further depuration.

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