Ultrafiltration and microfiltration membrane performance, cleaning, and flux recovery for microalgal harvesting

Liu, Rui; Wang, Lan; Yang, Li; Liu, Qingling; Yunxiao, Gao; Ye, Jing; Xiao, Jingrong; Zhang, Xuezhi

doi:10.1007/s10811-020-02204-2

Cited by 5 publications

(3 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The membrane flux recovery rate ( R 0 ) was used to evaluate the membrane cleaning effect. The higher the R 0 , the better the cleaning effect (Liu et al, 2020). R 0 is calculated by formula ():

{R}_0=\frac{J_w}{J_0}

where J 0 is the clean water flux of the membrane before membrane fouling (L·(m 2 ·h) −1 ); J w is the pure water flux of the membrane after cleaning (L·(m 2 ·h) −1 ).…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Study on efficiency and mechanism of ultrasonic controlling membrane fouling in ceramic membrane bioreactors

Ren,

Zhang,

Liu

et al. 2024

Water Environment Research

View full text Add to dashboard Cite

In recent years, ceramic membranes have been increasingly used in membrane bioreactors (MBRs). However, membrane fouling was still the core issue restricting the large‐scale engineering application of ceramic MBRs. As a novel and alternative technology, ultrasonic could be used to control membrane fouling. This research focused on the efficiency and mechanism of ultrasonic controlling membrane fouling in ceramic MBRs. The results showed that ultrasonic reduced the sludge concentration in MBR, and the average particle size of sludge was always in a high range. The sludge activity of the system was stable at 6–9 (mg O2·(g MLSS·h)−1), indicating that ultrasonic did not destroy the activity of microorganisms in the system. The extracellular polymer substance (EPS) of the ultrasonic group was slightly higher than that of the control group, while the soluble microbial product (SMP) content was relatively stable. The ceramic membrane of the ultrasonic group has a partial retention effect on the organic components. The application of ultrasonic slowed down the decrease of the hydrophilicity of the ceramic membrane. The main pollutants on the membrane surface exist in the form of aromatic and heteroaromatic rings, alkynes, and so forth. Ultrasonic removes the amide substances from the membrane surface. Membrane fouling resistance is mainly due to membrane pore blockage, accounting for 75.53%.Practitioner Points Enrich the research on the mechanism of ultrasonic technology in membrane fouling control. The MBR can still operate normally with ultrasonic applied. The time for the ceramic membrane to reach the fouling end point is 2.4 times that without ultrasonic. The main cause of membrane fouling was pore blocking, accounting for 75.53%.

show abstract

{R}_0=\frac{J_w}{J_0}

where J 0 is the clean water flux of the membrane before membrane fouling (L·(m 2 ·h) −1 ); J w is the pure water flux of the membrane after cleaning (L·(m 2 ·h) −1 ).…”

Section: Methodsmentioning

confidence: 99%

“…The membrane flux recovery rate (R 0 ) was used to evaluate the membrane cleaning effect. The higher the R 0 , the better the cleaning effect (Liu et al, 2020). R 0 is calculated by formula (2):…”

Section: Ceramic Membrane Filtration Performance Analysismentioning

confidence: 99%

Study on efficiency and mechanism of ultrasonic controlling membrane fouling in ceramic membrane bioreactors

Ren,

Zhang,

Liu

et al. 2024

Water Environment Research

View full text Add to dashboard Cite

show abstract

“…The selective separation of particles with respect to distinct properties can be performed by various methods, such as sieving, electrophoresis [1,2], filtration [3] or flotation [4,5]. However, particles can have multiple distributed properties such as size, electrical conductivity and/or shape, which can make separation challenging.…”

Section: Introductionmentioning

confidence: 99%

Dielectrophoretic Particle Chromatography: From Batch Processing to Semi-Continuous High-Throughput Separation

Giesler,

Weirauch,

Thöming

et al. 2024

Powders

View full text Add to dashboard Cite

The development of highly selective separation processes is a focus of current research. In 2016, the German Science Foundation funded a priority program SPP 2045 “MehrDimPart—highly specific multidimensional fractionation of fine particles with technical relevance” that aims to develop new or enhance existing approaches for the separation of nano- and micrometer-sized particles. Dielectrophoretic separators achieve highly selective separations of (bio-)particles in microfluidic devices or can handle large quantities when non-selective separation is sufficient. Recently, separator designs were developed that aim to combine a high throughput and high selectivity. Here, we summarize the development from a microfluidic fast chromatographic separation via frequency modulated dielectrophoretic particle chromatography (DPC) toward a macrofluidic high throughput separation. Further, we provide a starting point for future work by providing new experimental data demonstrating for the first time the trapping of 200 nm polystyrene particles in a dielectrophoretic high-throughput separator that uses printed circuit boards as alternatives for expensive electrode arrays.

show abstract

Effect of silicon powder dosage on the microstructure and performance of SiC/Si3N4 composite ceramic microfiltration membranes

Jin,

Zhang,

et al. 2024

Ceramics International

View full text Add to dashboard Cite

Ultrafiltration and microfiltration membrane performance, cleaning, and flux recovery for microalgal harvesting

Cited by 5 publications

References 33 publications

Study on efficiency and mechanism of ultrasonic controlling membrane fouling in ceramic membrane bioreactors

Study on efficiency and mechanism of ultrasonic controlling membrane fouling in ceramic membrane bioreactors

Dielectrophoretic Particle Chromatography: From Batch Processing to Semi-Continuous High-Throughput Separation

Effect of silicon powder dosage on the microstructure and performance of SiC/Si3N4 composite ceramic microfiltration membranes

Contact Info

Product

Resources

About