Monitoring scaling in nanofiltration and reverse osmosis membrane systems

Lisdonk, C.A.C. van de; Paassen, J.A.M. van; Schippers, Jan C.

doi:10.1016/s0011-9164(00)00139-9

Cited by 97 publications

(31 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…), heavy metal hydroxides and organic colloids such as proteins and aggregated NOM. Organic fouling, on the other hand is caused by Dissolved Organic Matter (DOM) in water such as natural organic matter in the form of Soluble Microbial Products (SMP), humic substances, polysaccharides and proteins [39,40]. NOM has been considered as a major foulant during membrane treatment of sea water, brackish water and surface water, which results in irreversible fouling due to hydrophobic fraction of natural organic matter which results in strong adsorption to membrane surface thus decrease in permeation flux.…”

Section: Types Of Foulingmentioning

confidence: 99%

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Zahid¹,

Rashid²,

Akram³

et al. 2018

J Membr Sci Technol

186

View full text Add to dashboard Cite

During last few decades, membrane technology has emerged as an efficient technique over conventional methods due to its high removal capacity, ease in operation and cost effectiveness for wastewater treatment and production of clean water. Membrane based separations are commonly based on polymeric membranes because of their higher flexibility, easily pore forming mechanism, low cost and smaller space for installation as compared to inorganic membranes. Commonly employed membrane fabrication phase inversion method has been shortly reviewed in this article. Major limitation of membrane based separations is fouling and polymeric membranes being hydrophobic in nature are more prone to fouling. Fouling is a deposition of various colloidal particles, macromolecules (polysaccharides, proteins), salts etc. on membrane surface and within pores thus impedes membrane performance, reduces flux and results in high cost. Modification of polymeric membranes due to its tailoring ability with nanomaterials such as metal based and carbon based results in polymeric nano-composite membranes with high antifouling characteristics. Nanomaterials impart high selectivity, permeability, hydrophilicity, thermal stability, mechanical strength, and antibacterial properties to polymeric membranes via blending, coating etc. modification methods. Characterization techniques has also discussed in later section for studying morphological properties and performance of polymer nano-composite membranes. Graphical Abstract

show abstract

Section: Types Of Foulingmentioning

confidence: 99%

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Zahid¹,

Rashid²,

Akram³

et al. 2018

J Membr Sci Technol

186

View full text Add to dashboard Cite

show abstract

“…Presence of high concentration of inorganic salts in the raw water is mainly responsible for inorganic scaling. In NF and RO systems, the dissolved salts are normally concentrated by 4-10 times, causing high concentrations exceeding the solubility at the membrane surface [42]. CaSO 4 , CaCO 3 , SiO 2 and BaSO 4 are some of the most common inorganic salts responsible for scaling on the membrane surface.…”

Section: Inorganic Foulingmentioning

confidence: 99%

“…CaSO 4 , CaCO 3 , SiO 2 and BaSO 4 are some of the most common inorganic salts responsible for scaling on the membrane surface. [14,42,43]. The salt precipitates when the solubility product of the constituent ions is reached or exceeded.…”

Section: Inorganic Foulingmentioning

confidence: 99%

Inorganic fouling of pressure-driven membrane processes — A critical review

2010

View full text Add to dashboard Cite

“…In general, the term is used to describe the undesirable deposition of retained particles, colloids, macromolecules and salts, at the membrane surface or inside the membranes pores. Depending on the membrane process and chemical nature of foulants several types of fouling can occur in membrane systems, such as inorganic fouling or scaling, organic fouling colloidal fouling and biofouling [4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…Inorganic fouling or scale formation at the membrane surface results from the increased concentration of one or more inorganic salts such as CaCO 3 , CaSO 4 ·2H 2 O and Ca 3 (PO 4 ) 2 beyond their solubility limits and their ultimate precipitation onto the membranes [4,8].…”

Section: Introductionmentioning

confidence: 99%