نتایج جستجو برای: low fouling

تعداد نتایج: 1204763  

2003
JOSÉ M. GUERRA-GARCÍA DOMINGO A. LANCELLOTTI

Many littoral caprellid species have a very ample distribution, some having been reported from all over the world. The cosmopolitan distribution of many littoral caprellid species might be facilitated by the fact that they are often associated with fouling communities on floating objects, which have a high potential of far-range dispersal. This dispersal potential may also have implications for...

ژورنال: علوم آب و خاک 2006
سیدعلی مرتضوی, , سیدمحمدعلی رضوی, , سیدمحمود موسوی, ,

In this study, the effect of transmembrane pressure (TMP) on flux decline and protein rejection due to concentration polarization and fouling (adsorption) resistances during ultrafiltration of reconstituted skimmilk was investigated. UF experiments were carried out using a pilot plant unit equipped with spiral wound module and polysulfonamide UF membrane. A three-stage experimental strategy bas...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2014
Germán Buitrón Iván Moreno-Andrade Víctor M Arellano-Badillo Víctor Ramírez-Amaya

The membrane fouling of an aerobic granular reactor coupled with a submerged membrane in a sequencing batch reactor (SBR) was evaluated. The fouling analysis was performed by applying microscopy techniques to determine the morphology and structure of the fouling layer on a polyvinylidene fluoride membrane. It was found that the main cause of fouling was the polysaccharide adsorption on the memb...

2015
Hongbin Zhang Mu Chiao

Fouling initiated by nonspecific protein adsorption is a great challenge in biomedical applications, including biosensors, bioanalytical devices, and implants. Poly(dimethylsiloxane) (PDMS), a popular material with many attractive properties for device fabrication in the biomedical field, suffers serious fouling problems from protein adsorption due to its hydrophobic nature, which limits the pr...

Journal: :Journal of hazardous materials 2011
Haigang Li Yanwen Lin Yunbai Luo Ping Yu Liwei Hou

Dyes fouling of reverse osmosis (RO) membranes and its relation to adsorption had been investigated by using a crossflow RO filtration setup. Methylene blue (MB) and rhodamine B (RB) were used as model organic foulants. The calculated amount of the irreversible sorption was related to the irreversible flux decline. The characteristic fouling kinetics was accounted by Langmuir-Hinshelwood (L-H) ...

Journal: :Biofouling 2011
M P Schultz J A Bendick E R Holm W M Hertel

In the present study, the overall economic impact of hull fouling on a mid-sized naval surface ship (Arleigh Burke-class destroyer DDG-51) has been analyzed. A range of costs associated with hull fouling was examined, including expenditures for fuel, hull coatings, hull coating application and removal, and hull cleaning. The results indicate that the primary cost associated with fouling is due ...

2014
Petros K. Gkotsis Efrosini N. Peleka Anastasios I. Zouboulis Petros E. Samaras Kostas A. Matis Michael Henson

Membrane fouling is one of the most important considerations in the design and operation of membrane systems as it affects pretreatment needs, cleaning requirements, operating conditions, cost and performance. Given that membrane fouling represents the main limitation to membrane process operation, it is unsurprising that the majority of membrane material and process research and development co...

2007
Dirk Vogel Bernd Bilitewski Long D. Nghiem

Nanofiltration (NF) is an attractive option for the treatment of landfill leachate. However, membrane fouling can be a major obstacle in the implementation of this technology. In this study, bench-scale filtration experiments were carried out to study the fouling behaviour during the NF of a synthetic landfill leachate. The results indicate that calcium in combination with organic matter could ...

2006
M. R. Wilkins V. Singh R. L. Belyea P. Buriak M. A. Wallig M. E. Tumbleson K. D. Rausch

Cereal Chem. 83(3):311–314 Dry-grind corn processing facilities produce ethanol, carbon dioxide, and distillers dried grains with solubles (DDGS). To produce DDGS, drygrind corn processors concentrate thin stillage in multieffect evaporators. Concentration of thin stillage uses large amounts of energy, and efficient operation is important for long-term economic stability of the industry. Little...

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