Separation of nano-sized colloidal particles using cross-flow electro-filtration

Lin, Yu-Hsiang; Sung, Menghau; Sanders, Paul F.; Marinucci, Andrew C.; Huang, Chin‐Pao

doi:10.1016/j.seppur.2007.07.035

Cited by 24 publications

(12 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This prompts diffusion of HS particles from the cake layer toward the adjacent solution (Layer II) due to the concentration gradient. In the presence of external d.c. electric field, the negative charged particles are forced to migrate away from the membrane surface, as they are repelled by the cathode placed behind the membrane [10,12]. The critical electric field intensity (E critical ) is considered as one of the most important indicators to determine the particles' moving behavior which can be estimated by [7] where E critical (V/cm) denotes the critical field strength, J is the permeate flux (cm/s) and u P (cm 2 /(V • s)) is electrophoretic mobility of the species of interest.…”

Section: Resultsmentioning

confidence: 99%

“…For example, Weng et al [9] used an EMF module to separate Aldrich HS from water by applying a voltage across the membrane. According to Lin et al [10], a prototype electrical cross-flow filtration system (ECFF) was designed and used to improve the separation of nano-sized particles from water. Holder et al [11] investigated the fractionation of bio-functional peptides from micellar casein hydrolysate by long-term cross-flow ultrafiltration (CFUF) and long-term cross-flow electro membrane filtration (CFEMF).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of operational parameters on electro-microfiltration process of NOM tailwater containing scaling metal ions

Wei

Zhang

et al. 2015

Desalination

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of operational parameters on electro-microfiltration process of NOM tailwater containing scaling metal ions

Wei

Zhang

et al. 2015

Desalination

View full text Add to dashboard Cite

“…Due to the small size, the separation of nanoparticles from liquid medium by conventional filtration without pre-coagulation could be difficult [93]. In the Iast few years, coagulation or electrocoagulation with filtration was then explored by many researchers [94][95].…”

Section: Filtration Processmentioning

confidence: 99%

Nanoparticles in wastewaters: Hazards, fate and remediation

et al. 2014

View full text Add to dashboard Cite

The increasing use of nanoparticles will inevitably result in their release into the aquatic environment and thereby cause the exposure of living organisms. Due to their larger surface area, high ratio of particle number to mass, enhanced chemical reactivity, and potential for easier penetration of cells, nanoparticles may be more toxic than larger particles of the same substance. Some researchers have been showing some relations between nanoparticles and certain diseases. However, the doses, surface shapes, material toxicity and persistence of nanoparticles may all be factors in determining harmful biological effects. In order to better evaluate their risks, potential exposure route of nanoparticles has to be taken into consideration as well. Finally, a brief summary of techniques for nanoparticle removal in waters and wastewaters is presented, but it seems that no treatment can absolutely protect the public from exposure to a large-scale dissemination of nanomaterials

show abstract

“…Although cross-flow membrane filtration can minimize contact between solid and membrane so as to prolong the service time, fouling is inevitable [2,3]. Membrane fouling can be minimized by the pretreatment, the membrane geometry and stacking structure, surface feed-flow velocities, turbulent pulses, sponge balls, backwashes, air splurges, and chemical and biological cleaning protocols [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%