Effect of in-situ ozonation on ceramic UF membrane fouling mitigation in algal-rich water treatment

Wei, Dequan; Tao, Yi; Zhang, Zhenghua; Liu, Linjing; Zhang, Xihui

doi:10.1016/j.memsci.2015.09.063

Cited by 109 publications

(37 citation statements)

References 35 publications

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“…A solution was proposed to control the formation of scaling in membrane filter by applying in situ ozonation (Wei et al, 2016). This treatment can effectively mitigate membrane fouling with 76% improvement in transmembrane pressure.…”

Section: Ozonationmentioning

confidence: 99%

Scale Deposits From Palm Oil Mill Effluent (Pome) Treatment and Various Other Industries: A Developmental Review

Muzzammil¹

2018

JOPR

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The palm oil mill effluent (POME) treatment process is exposed to the formation of crystal-like deposits where their accumulation could create a significant threat to achieving an efficient POME treatment. This article reviewed similar occurrences in other industries, discussed factors influencing the crystal formation and suggested possible solutions to be applied in the oil palm industry. From the review, it was found that crystal deposits have always been a nuisance and sometimes a significant threat to similar industries such as industrial, agricultural and municipal wastewater treatment facilities. Other industries where there is a handling process of certain type of fluids such as heat transfer and oil reservoir drilling fluids also faces similar problems. The article also presented the spectrum of methods for mitigation and removal of the crystal formed. For many cases, nutrient recovery through struvite precipitation has become attractive as it not only reduces crystal growth but at the same time prevents excessive nutrients discharge to the environment. Further exploitation of the recovered struvite as a fertiliser source could possibly generate additional income to the oil palm industry.

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Section: Ozonationmentioning

confidence: 99%

Scale Deposits From Palm Oil Mill Effluent (Pome) Treatment and Various Other Industries: A Developmental Review

Muzzammil¹

2018

JOPR

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“…Technologies to obtain sufficiently clean water have drawn extensive attention worldwide in the past decades because of the worsening water scarcity and pollution. Membrane separation technology may be an effective method for solving these issues because of its easy scale‐up, low cost as well as energy expenditure . Yet, a large number of membrane materials and configurations such as hollow fiber and spirals have been successfully developed and applied in engineering practice.…”

Section: Introductionmentioning

confidence: 99%

Improving the antifouling property of polypropylene hollow fiber membranes by in situ ultrasonic wave‐assisted polymerization of styrene and maleic anhydride

Shao

Wei

Luo

et al. 2018

Polymer Engineering & Sci

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For the purpose of enhancing the hydrophilicity and antifouling property, styrene‐maleic anhydride copolymer (SMA) was successfully introduced on the surface of polypropylene hollow fiber membranes via in situ ultrasonic wave‐assisted polymerization. It was shown that how to avoid the hydrolysis and esterification of anhydride groups was the key for improving the hydrophilicity and antifouling property of membranes. Some factors were studied in detail, such as solvent, concentration of solution as well as time and temperature of ultrasonic treatment. Results showed that acetone and ethanol as solvents performed different functions during the process of the polymerization, and ethanol, a polar solvent, reacted with anhydride groups to hinder the formation of SMA and improvement of antifouling property. The modified membranes (PPM1 and PPM5) exhibit both high water flux and strong antifouling capability. Besides, antifouling property of modified membranes was very stable, which proved that they can work in reality. This study supplied a new approach to fabricate highly efficient polymeric membranes applicable to wastewater purification. POLYM. ENG. SCI., 59:E51–E58, 2019. © 2018 Society of Plastics Engineers

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“…In-situ ozonation was also used to control membrane fouling in the treatment of surface waters contaminated with cyanobacteria. Wei et al (2016) reported that greater ozone concentrations generally reduced the rate of membrane fouling, due in large part to the formation of a thinner and more porous cake layer, as observed by Sartor et al (2008). A reduced resistance due to pore blocking was also noted, presumably due to residual ozone passing through the membrane and into the permeate.…”

Section: Application Of Ozone With Ceramic Membranesmentioning

confidence: 85%

“…The authors noted that the ozone CIP was able to achieve the same degree of cleaning as a chlorine CIP in a quarter of the time. When cyanobacteria cells are present in the water, Wei et al (2016) noted that that the continuous addition of ozone to the membrane influent could reduce the accumulation of fouling on the membrane by approximately 76%.…”

Section: Problem Statementmentioning

confidence: 99%

“…Consequently, in addition to the observed changes in fouling behaviour, changes in permeate quality were also reported. In fact, there was a noticeable increase in the membrane's permeate DOC concentration (Sartor et al, 2008;Zhang et al, 2013;Wei et al, 2016). To overcome this potentially negative impact on treatment, an activated carbon filter must either be installed post-membrane to adsorb a fraction of the organics (Sartor et al, 2008;Zhang et al, 2013) or the ozone dosage must be increased, as done by Wei et al (2016),…”

Section: Application Of Ozone With Ceramic Membranesmentioning

confidence: 99%

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Ozone Chemically-Enhanced Backwashes For Ceramic Membrane Fouling Control in Cyanobacteria-Laden Surface Water Applications

Venne¹

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Membranes have been shown to be e↵ective physical barriers against cyanobacteria, however, membrane fouling in surface waters impacted by cyanobacteria is poorly controlled and results in high operating costs. A possible solution is the chemicallyenhanced backwash (CEB), a cleaning strategy in which a chemical is combined with a hydraulic backwash for in-situ fouling control. This research investigates the po-Firstly, I would like to thank my two supervisors: Dr. Onita Basu and Dr. Benoit Barbeau. Their guidance and unwavering optimism throughout all stages of this research was motivating and much appreciated. I am very grateful for the opportunities that were given to me. As a whole, this project was a great learning experience and has helped shape my career path. A la Polytechnique de Montréal, j'aimerais remercier l'équipe de techniciens du

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Effect of in-situ ozonation on ceramic UF membrane fouling mitigation in algal-rich water treatment

Cited by 109 publications

References 35 publications

Scale Deposits From Palm Oil Mill Effluent (Pome) Treatment and Various Other Industries: A Developmental Review

Scale Deposits From Palm Oil Mill Effluent (Pome) Treatment and Various Other Industries: A Developmental Review

Improving the antifouling property of polypropylene hollow fiber membranes by in situ ultrasonic wave‐assisted polymerization of styrene and maleic anhydride

Ozone Chemically-Enhanced Backwashes For Ceramic Membrane Fouling Control in Cyanobacteria-Laden Surface Water Applications

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