Recent Advances in the Physical Methods to Combat Membrane Fouling: An Emphasis on the Periodic Feed Pressure Technique

Echakouri, Mohamed; Zoubiek, Mohamed; Salama, Amgad; Henni, Amr; ElGharbi, Hassan

doi:10.1007/978-3-030-76081-6_24

Cited by 8 publications

(2 citation statements)

References 9 publications

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“…The permeate flux decline was associated with various resistances-in-series, which are explicitly identified in three primary resistances: membrane resistance (Rm), cake layer resistance (Rc), and internal intrinsic resistance (Ri) [44]. Figures internal and membrane resistance had a lower effect on the overall fouling resistance [48][49][50]. Therefore, the cake resistance is considered an operational parameter to evaluate the extent of the membrane fouling [51,52].…”

Section: Resistance Profile Analysismentioning

confidence: 99%

Experimental Investigation of the Novel Periodic Feed Pressure Technique in Minimizing Fouling during the Filtration of Oily Water Systems using Ceramic Membranes

Echakouri¹,

Salama²,

Henni³

2022

Preprint

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Fouling represents a bottleneck problem for promoting the use of membranes in filtration and separation applications. It becomes even more persistent when it comes to the filtration of fluid emulsions. In this case, a gel-like layer that combines droplets, impurities, salts, and other materials form at the membrane's surface, blocking its pores. It is, therefore, a privilege to combat fouling by minimizing the accumulation of these droplets that work as seeds for other incoming droplets to cluster and coalesce with. In this work, we explore the use of the newly developed and novel periodic feed pressure technique (PFPT) in combating the fouling of ceramic membranes upon the filtration of oily water systems. The PFPT is based on alternating the applied transmembrane pressure (TMP) between the operating one and zero. A PFPT cycle is composed of a filtration half-cycle and a cleaning half-cycle. Permeation occurs when the TMP is set at its working value, while the cleaning occurs when it is zero. Three PFPT patterns were examined over two feeds of oily water systems with oil contents of 100 and 200ppm, respectively. The results show that the PFPT is very effective in minimizing the problem of fouling compared to a non-PFPT normal filtration. Furthermore, the overall drops in permeate flux during the cleaning half cycles are compensated by appreciable enhancement due to the significant elimination of fouling development such that the overall production of filtered water is even increased. Inspection of the internal surface of the membrane post rinsing at the end of the experiment proves that all PFPT cycles maintained the ceramic membranes as clean after a 2-hours operation. This can ensure a prolonged lifespan of the ceramic membrane use and a continuous greater permeate volume production. The advantage of the PFPT is that it can be implemented on existing units with minimal modification, ease of operation, and saving energy.

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Section: Resistance Profile Analysismentioning

confidence: 99%

Experimental Investigation of the Novel Periodic Feed Pressure Technique in Minimizing Fouling during the Filtration of Oily Water Systems using Ceramic Membranes

Echakouri¹,

Salama²,

Henni³

2022

Preprint

Self Cite

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“…Chemical cleaning uses agents (e.g., alkalines and acids) to regenerate the membrane surface and clean the irreversible membrane fouling [10]. Physical cleaning uses mechanical and hydrodynamic forces to help displace and transport the oil droplets by the crossflow mainstream [11]. Mechanical cleaning techniques include ultrasonic and vibration [12].…”

Section: Introductionmentioning

confidence: 99%

High-Frequency Pulsatile Parameterization Study for the Titania Ceramic Membrane Fouling Mitigation in Oily Wastewater Systems Using the Box–Behnken Response Surface Methodology

2022

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In this comprehensive study, a seven-channel ultrafiltration (UF) titania membrane was used to investigate the impact of the pulsatile cleaning process on the crossflow filtration system. Seventeen experimental runs were performed for different operating conditions with a transmembrane pressure (TMP) varying from 0.5 to 1.5 bar, a crossflow velocity (CFV) ranging from 0.5 to 1 m/s, and pulsatile parameters within an interval varying from 60 to 120 s with a duration of 0.8 s, and collecting membrane permeate flux and volume data. The optimized operating conditions revealed that a TMP of 1.5 bar, a CFV of 0.71 m/s, and a pulsatile cycle of 85 s were the best operating conditions to reach the highest steady permeability flux and volume of 302 LMH and 8.11 L, respectively. The UF ceramic membrane under the optimized inputs allowed for an oil-rejection ability of 99%. The Box–Behnken design (BBD) model was used to analyze the effect of crossflow operating conditions on the permeate flux and volume. The analysis of variance (ANOVA) indicated that the quadratic regression models were highly significant. At a 95% confidence interval, the optimum TMP significantly enhanced the flux and permeate volume simultaneously. The results also demonstrated a positive interaction between the TMP and the pulsatile process, enhancing the permeate flux with a slight impact on the permeate volume. At the same time, the interaction between the CFV and pulsatile flow improved the permeability and increased the permeate volume.

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Toward an Understanding of the Role of Fabrication Conditions During Polymeric Membranes Modification: A Review of the Effect of Titanium, Aluminum, and Silica Nanoparticles on Performance

et al. 2022

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Recent Advances in the Physical Methods to Combat Membrane Fouling: An Emphasis on the Periodic Feed Pressure Technique

Cited by 8 publications

References 9 publications

Experimental Investigation of the Novel Periodic Feed Pressure Technique in Minimizing Fouling during the Filtration of Oily Water Systems using Ceramic Membranes

Experimental Investigation of the Novel Periodic Feed Pressure Technique in Minimizing Fouling during the Filtration of Oily Water Systems using Ceramic Membranes

High-Frequency Pulsatile Parameterization Study for the Titania Ceramic Membrane Fouling Mitigation in Oily Wastewater Systems Using the Box–Behnken Response Surface Methodology

Toward an Understanding of the Role of Fabrication Conditions During Polymeric Membranes Modification: A Review of the Effect of Titanium, Aluminum, and Silica Nanoparticles on Performance

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