The Removal of Bisphenol A in Water Treatment Plant Using Ultrafiltration Membrane System

Muhamad, Mimi Suliza; Salim, Mohd Razman; Lau, Woei Jye; Yusop, Zulkifli; Hadibarata, Tony

doi:10.1007/s11270-016-2951-7

Cited by 13 publications

(6 citation statements)

References 43 publications

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“…The physical modification significantly influences the further process of ROS generation. − We rationalize that the conventional thermodynamics of the bubble collapse phenomenon led to ozone breakdown. Furthermore, this process comprises three sequential stages, namely, initiation, propagation, and termination.…”

Section: Resultsmentioning

confidence: 80%

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High Recovery of Ceramic Membrane Cleaning Remediation by Ozone Nanobubble Technology

Rafryanto,

Ramadina,

Nur’aini

et al. 2024

ACS Omega

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The persistent issue of ceramic membrane fouling poses significant challenges to its widespread implementation. To address this concern, ozone nanobubbles (ozone-NBs) have garnered attention due to their remarkable mass transfer efficiency. In this investigation, we present a novel ozone-NB generator system to effectively clean a fouled ceramic membrane that is typically employed in the dye industry. The surface characteristics of the ceramic membrane underwent significant alterations, manifesting incremental changes in surface roughness and foulant accumulation reduction, as evidenced in atomic force microscopy, scanning electron microscopy, X-ray fluorescence, and energy-dispersive spectroscopy. Remarkably, the sequential 4 h cleaning process demonstrates an effective outcome leading to an almost 2-fold enhancement in the membrane flux. The initial fouled state of 608 L/ h/m 2 increased to 1050 L/h/m 2 in the 4 h state with a recovery of 50%. We propose such membrane performance improvement governed by the ozone-NBs with a size distribution of 213.2 nm and a zeta potential value of −20.26 ± 0.13 mV, respectively. This effort showcases a substantial innovative and sustainable technology approach toward proficient foulant removal in water treatment applications.

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Section: Resultsmentioning

confidence: 80%

“…Thus, in this study, the experimental fouling process of ceramic membranes was not a focus. The flux of the fouled membrane was measured at 608 L/h/m 2 by using the flux test instrument for the cross-flow membrane 26 depicted in Figure 2 . A distribution pump facilitated the circulation of water throughout the system.…”

Section: Methodsmentioning

confidence: 99%

High Recovery of Ceramic Membrane Cleaning Remediation by Ozone Nanobubble Technology

Rafryanto,

Ramadina,

Nur’aini

et al. 2024

ACS Omega

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“…It was observed that the yields achieved in the c-UF system without the self-cleaning system did not exceed 15-25%. This is mainly because ultrafiltration processes are not the most effective for removing dissolved organic material [37,69]. When the self-cleaning system is included, it did not bring with it a significant reduction since the small observed improvement of 2.6% was within the range of experimental error.…”

Section: Effect Of the Self-cleaning System On The Water Qualitymentioning

confidence: 98%

“…It proved to be an effective barrier for the removal of viruses and bacteria, suspended solids, parasites and microorganisms. [31,[33][34][35][36][37] Biological Conventional Active sludge systems, despite being the most widely used in WWTP, were the least efficient for removing complex mixtures of CECs due to the specific biodegradability of each contaminant. In a WWTP in Finland, they obtained a CEC removal efficiency of 26% for diclofenac while for naproxen an efficiency close to 97-100%.…”

Section: Physical Adsorptionmentioning

confidence: 99%

Water Reuse Study from Urban WWTPs via c-Ultrafiltration and Ozonation Technologies: Basis for Resilient Cities and Agriculture

et al. 2021

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The water–development nexus is essential for the advancement and progress of cities in the face of problems such as climate change, water security and increasing environmental stress in the agricultural sector. Aiming for a circular economy and, at the same time, improving the resilience of water supply alternatives and achieving a goal of zero waste, this work presents a technical–economic study of a novel continuous ultrafiltration (c-UF) system with self-cleaning capacity coupled to an ozonation process, for the treatment of urban WWTP effluent. The removal efficiencies achieved were analysed both through macroscopic parameters (suspended solids, turbidity) and for the most frequently occurring contaminants of emerging concern (CECs). Consequently, an effluent suitable for irrigation was obtained, with a total recovery factor of 97.92%, a concentration of suspended solids (SS) below 1 mg L−1, 0.06 NTU turbidity and toxicity free, complying with the new European Regulation on Water Reuse (EU 2020/741). A comparative analysis of the proposed process with regard to conventional tertiary treatment revealed that the proposed process was 39.1% more economic, with a cost of 0.0325 € m−3. This alternative treatment will be of great interest because of its favourable technical–economic characteristics, being postulated as a basic process for implementation in modern water reuse plants.

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“…Despite its reputation as one of the most harmful pollutants, BPA is necessary in the industrial production of epoxy resins and polycarbonate polymers. BPA is a white crystalline substance (powder or flake) with a slight phenolic odor that can be found in the environment [1]. Food containers, plastic bottles, toys, water pipes, medical equipment, dental products, electronic devices, compact discs, thermal paper, vehicle parts, and adhesives have all been found to contain BPA [1].…”

Section: Introductionmentioning

confidence: 99%

Photodegradation of Bisphenol a in Water via Round-the-Clock Visible Light Driven Dual Layer Hollow Fiber Membrane

et al. 2023

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Bisphenol A (BPA) is an endocrine-disrupting chemical (EDC) that can cause adverse effects on human health. The incorporation of materials as visible light photocatalysts and its energy storage capability allow for the photodegradation of BPA, especially in the absence of a light source. To date, there have been no significant studies regarding energy storage in membrane technology, with only a focus on the suspension form. Hence, this study was conducted to degrade the pollutant through a co-extrusion process using a mixture of copper (II) oxide and tungsten oxide as the photocatalyst and energy storage materials, respectively. Both materials were embedded into polyvinylidene (PVDF) membranes to produce a Cu2O/WO3/PVDF dual-layer hollow fiber (DLHF) membrane. The outer dope extrusion flow rate was set at 3 mL/min, 6 mL/min, and 9 mL/min with photocatalyst:polymer ratios of 0.3, 0.50, and 0.7 Cu2O/WO3/PVDF, respectively. The performance of the membranes for each ratio was evaluated using 2 ppm of BPA with visible light irradiation. The results showed that each membrane’s outer and inner layers featured finger-like void structures, while the intermediate part had a sponge-like structure. The membrane with the photocatalyst:polymer ratio of 0.5 was hydrophilic and had a high porosity of 54.97%, resulting in a high flow of 510 L/m2h. Under visible light irradiation, a 0.5 Cu2O/PVDF DLHF membrane with a 6-mL/min outer dope flow rate was able to remove 97.82% of 2-ppm BPA without copper leaching into the water sample. Under dark conditions, the DLHF sample showed the capability of energy storage performance and could drive certain degradation after lighting off up to 70.73% of 2-ppm BPA. The photocatalytic DLHF membrane with the ratio of 0.5 was the most optimal due to its potential morphology and ability to degrade a large amount of BPA. It is important to emphasize that usage of materials with the capability for energy storage can provide a significant contribution toward more practical membranes, so photodegradation can occur even in dark conditions.

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The Removal of Bisphenol A in Water Treatment Plant Using Ultrafiltration Membrane System

Cited by 13 publications

References 43 publications

High Recovery of Ceramic Membrane Cleaning Remediation by Ozone Nanobubble Technology

High Recovery of Ceramic Membrane Cleaning Remediation by Ozone Nanobubble Technology

Water Reuse Study from Urban WWTPs via c-Ultrafiltration and Ozonation Technologies: Basis for Resilient Cities and Agriculture

Photodegradation of Bisphenol a in Water via Round-the-Clock Visible Light Driven Dual Layer Hollow Fiber Membrane

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