High-Efficiency Water Filtration by Electrospun Expanded Polystyrene Waste Nanofibers

Arrosyid, Bagas Haqi; Zulfi, Akmal; Nur'aini, Syarifa; Hartati, Sri; Rafryanto, Ande Fudja; Noviyanto, Alfian; Hapidin, Dian Ahmad; Feriyanto, Dafit; Khairurrijal, Khairurrijal

doi:10.1021/acsomega.3c01718

Cited by 11 publications

(2 citation statements)

References 63 publications

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“…In addition, the application of these monomer/polymer compounds in daily necessities has been posing a massive burden for their post-utilization disposal. The emergence of waste and its recycling potential has attracted attention to its application in membrane fabrication [42,[86][87][88][89]. The utilization of recycled waste for fabricating the membranes can help in reducing the environmental impact by 2× amount (i.e., eliminate the use of polymer for membrane fabrication and its associated environmental impact and mitigating the effect of waste on the environment via its utilization), thus helping in maintaining environmental sustainability.…”

Section: Membrane Fabrication Using Recycled Wastementioning

confidence: 99%

Sustainability in Membrane Technology: Membrane Recycling and Fabrication Using Recycled Waste

Khanzada,

Al-Juboori,

Khatri

et al. 2024

Membranes

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Membrane technology has shown a promising role in combating water scarcity, a globally faced challenge. However, the disposal of end-of-life membrane modules is problematic as the current practices include incineration and landfills as their final fate. In addition, the increase in population and lifestyle advancement have significantly enhanced waste generation, thus overwhelming landfills and exacerbating environmental repercussions and resource scarcity. These practices are neither economically nor environmentally sustainable. Recycling membranes and utilizing recycled material for their manufacturing is seen as a potential approach to address the aforementioned challenges. Depending on physiochemical conditions, the end-of-life membrane could be reutilized for similar, upgraded, and downgraded operations, thus extending the membrane lifespan while mitigating the environmental impact that occurred due to their disposal and new membrane preparation for similar purposes. Likewise, using recycled waste such as polystyrene, polyethylene terephthalate, polyvinyl chloride, tire rubber, keratin, and cellulose and their derivates for fabricating the membranes can significantly enhance environmental sustainability. This study advocates for and supports the integration of sustainability concepts into membrane technology by presenting the research carried out in this area and rigorously assessing the achieved progress. The membranes’ recycling and their fabrication utilizing recycled waste materials are of special interest in this work. Furthermore, this study offers guidance for future research endeavors aimed at promoting environmental sustainability.

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Section: Membrane Fabrication Using Recycled Wastementioning

confidence: 99%

Sustainability in Membrane Technology: Membrane Recycling and Fabrication Using Recycled Waste

Khanzada,

Al-Juboori,

Khatri

et al. 2024

Membranes

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show abstract

“…To ensure the elimination of any remaining contaminants, the treated greywater is directed to a polystyrene filtration unit (F-101). Polystyrene (PS), which can be recycled, effectively remediates organic matter and dyes [36][37][38]. Finally, the filtered water goes to the disinfection tank (TK-105) where sodium hypochlorite (which releases chlorine) is added.…”

Section: Economic Feasibility Of a Pilot-scale Plantmentioning

confidence: 99%

Sustainable Water Management with Design and Economic Evaluation of Recycling Greywater at Abu Dhabi University—A Case Study on Decentralization

Madhuranthakam,

AbuZaid,

Chaalal

et al. 2023

Sustainability

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Wastewater can be segregated as greywater and blackwater separately. The greywater generated in malls, restaurants, and university buildings is generally dilute, while it will later become concentrated when it is merged into the main sewage collection line. It would be more economical and environmentally friendly if the greywater is treated locally using a modular wastewater treatment facility that produces treated water amenable for other uses such as irrigation or horticulture. The objective of this article is to study the economic feasibility and design a decentralized plant that produces fresh water from greywater generated at the Abu Dhabi university campus located in the United Arab Emirates. The proposed unit will consist of a compact design of filtration, chemical treatment and disinfection processes that would generate treated wastewater that can be used for horticulture in and around the local campus or can be stored and supplied for irrigation purposes. Several parameters such as total suspended solids, biological oxygen demand, and chemical oxygen demand are measured and monitored throughout the entire process and are regulated by appropriate operations performed for each unit. This study shows that decentralization of greywater treatment is not only economical but also essential for the management of fresh water, which in turn assures environmental sustainability. By using coagulation, flocculation and chlorination with a 30 mg/L alum dosage, 0.6 mg/L of polyacrylamide and 0.12 mg/L of sodium hypochlorite, respectively, greywater is treated to meet the water specification for reusing it for horticulture. Further, a modular plant with an investment of USD 8 M is proved to process 90,000 tons of greywater with a 34% discounted rate of return.

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MXene—Reclaimed Cellulose Acetate Composites for Methylene Blue Removal Through Synergistic Adsorption and Photocatalysis

Subash,

Sen,

Naebe

et al. 2024

Polymers for Advanced Techs

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The rapid growth in textile industries has led to a significant discharge of dyed water into water sources, posing severe threats to human and environmental health. Methylene blue (MB), crucial for medical diagnostics and dyeing, requires effective removal due to its toxicological and environmental hazards, persisting above 1 ppm in aqueous solutions at ambient temperatures. Reclaiming cellulose acetate not only heralds a sustainable approach to water reclamation but also amalgamates natural purification with technological advancements. The study utilized reclaimed cellulose acetate to fabricate electrospun nanofibers and bead adsorbents using Ti3C2Tx and surface‐modified Ti3C2Tx via liquid‐state microwaving. The research investigated surface chemistry, morphology, and the impact of adsorption conditions on MB adsorption, revealing enhanced uptake capacities from 45% to 93% for nanofibers and 40%–80% for beads at 25°C after 2 and 3 h, respectively. Adsorption followed PSO kinetics and Langmuir isotherms, with thermodynamic analysis indicating an endothermic, spontaneous physisorption process with ΔH and ΔS values obtained 0.008–31.33 kJ·mol−1 and 11.95–116.38 J·mol−1·K−1. Furthermore, the CA‐surface‐modified Ti3C2Tx composite demonstrated significant photocatalytic activity, achieving 96% degradation efficiency compared to Ti3C2Tx alone. The biodegradation assay under natural conditions using an in‐house degradation slurry showed 20%–58% degradation of the spent adsorbents over 120 days.

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High-Efficiency Water Filtration by Electrospun Expanded Polystyrene Waste Nanofibers

Cited by 11 publications

References 63 publications

Sustainability in Membrane Technology: Membrane Recycling and Fabrication Using Recycled Waste

Sustainability in Membrane Technology: Membrane Recycling and Fabrication Using Recycled Waste

Sustainable Water Management with Design and Economic Evaluation of Recycling Greywater at Abu Dhabi University—A Case Study on Decentralization

MXene—Reclaimed Cellulose Acetate Composites for Methylene Blue Removal Through Synergistic Adsorption and Photocatalysis

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