Microfiltration Articles

116 Results found
  • Category: Water & Wastewater ×

  • Subcategory: Microfiltration ×

Confirmation of the correlation between membrane fouling in microfiltration and biopolymer concentrations in various Japanese surface waters

by IWA Publishing  (Apr. 8, 2015)

A variety of surface waters used for drinking water sources were collected from different parts of Japan to investigate a correlation between the concentration of hydrophilic biopolymer (e.g. proteins and polysaccharides) in the feed water and membrane fouling in microfiltration. Hollow-fiber membranes made from polyvinylidene fluoride with a ...

Cake porosity analysis using 1D–3D fractal dimensions in coagulation–microfiltration of NOM

by IWA Publishing  (Mar. 16, 2015)

Fouling during coagulation–ceramic microfiltration of natural organic matter was investigated. Two process configurations (inline coagulation (IC) and tank coagulation (TC)) and two process conditions (types of coagulants–aluminum-based PAX and iron-based PIX–and G-values) were studied. The rate of irreversible fouling ...

Membrane fouling mitigation by activated carbon addition in activated sludge filtration

by Inderscience Publishers  (Dec. 24, 2014)

Activated carbon (AC) was added into the activated sludge to alleviate membrane fouling during sludge microfiltration. The fouling mitigation profiles were evaluated at different AC sizes and doses by a single-fibre microfiltration system. It was found that the granular AC added in the sludge suspension can absorb the organic substances in the ...

Virus removal by an in-line coagulation–ceramic microfiltration process with high-basicity polyaluminum coagulation pretreatment

by IWA Publishing  (Jun. 12, 2014)

The ability of in-line coagulation pretreatment with high-basicity polyaluminum chloride (PACl) coagulants to enhance virus removal by ceramic microfiltration (MF) was examined by comparing virus removal efficiencies from water pretreated with PACl-2.2 (basicity 2.2) and PACl-2.5 (basicity 2.5) versus alum, a synthetic aluminum chloride (AlCl3) ...

Biomass properties and permeability in an immersed hollow fibre membrane bioreactor at high sludge concentrations

by IWA Publishing  (Jun. 5, 2014)

This study aimed to investigate the influence of biomass properties and high mixed liquor suspended solids (MLSS) concentrations on membrane permeability in a pilot-scale hollow fibre membrane bioreactor treating domestic wastewater. Auxiliary molasses solution was added to maintain system operation at constant food-to-microorganisms ratio (F/M ...

Clarification of rough beer in brewery industry case study

by RVF-filtration  (May 9, 2014)

Standard filtration uses diatomaceous earth (Kieselguhr) into filter-press and consists in the retention of solid particles (yeast cells, macrocolloids, suspended matter) and solutes responsible for haze. After use the disposal of Kieselguhr (after filtration) are a major difficulty due to their polluting effect. From the health perspective, the ...

Influence of extracellular polysaccharides (EPS) produced by two different green unicellular algae on membrane filtration in an algae-based biofuel production process

by IWA Publishing  (May 7, 2014)

In the present study, two strains of green algae named S1 and S2, categorized as the same species of Pseudo-coccomyxa ellipsoidea but showing 99% homology, were cultivated under the same conditions and filtrated with a microfiltration membrane. On the basis of the results of the extracellular polysaccharides (EPS) characteristics of these ...

Why Oil Filtration is Important for OEMs

by Chongqing Zhongneng Oil Purifier Co., Ltd.  (Apr. 28, 2014)

The need of oil filtration prevails in a number of industrial spheres which involves the usage of mechanical equipments. The types of filtration can be divided into two major categories i.e. primary filtration which is used for screening and secondary filtration used for cleaning purposes. The former is applicable and beneficial for the protection ...

Irreversible fouling of membrane bioreactors due to formation of a non-biofilm gel layer

by IWA Publishing  (Apr. 24, 2014)

Extra-cellular polymeric substances (EPS), known to contribute to fouling in membrane bio-reactors (MBRs), are generally divided into bound and free EPS. The free EPS are able to form a gel layer on the membrane active surface. The mechanisms involved in formation of such layer and its effects on performance of the MBR membranes were studied. ...

Industrial Benefits of Oil Filtration and Cleaning Machinery

by Chongqing Zhongneng Oil Purifier Co., Ltd.  (Apr. 17, 2014)

It is highly recommended to keep the machinery oil clean to maintain an optimum level of operational efficiency at the production or manufacturing plants of widespread industrial spheres that depend on the usage of mechanical equipments. By doing so, the plant managers can obtain the extension and longevity in the lifetime of their site machinery. ...

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