electroosmotic dewatering

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  • PRACTICAL ASPECTS OF DEWATERING ENHANCED BY ELECTRO ...

    ABSTRACT Dewatering mechanism due to electro-osmosis is fairly different from that of mechanical dewataine which has been used conventionally. and electro-osmotic dewatering has Several advantages compared with the mechanical dewatering and it can be remarkably effective for hardly dewaterable sludges such as very fine Particles and gelatinous materials. In electro-osmotically …

  • Performance of electro-osmotic dewatering on different ...

    Dewatering increased with the applied potential but at the expense of a higher energy consumption. A potential equal to 15V was chosen as the best compromise for EDW performance, in terms of DS content and energy consumption. Then, the influence of the mechanical dewatering was studied on aerobically stabilised sludge samples with a lower ...

  • Experimental Study of the Electro-osmotic Dewatering in ...

    Experimental Study of the Electro-osmotic Dewatering in Hangbag The Open Civil Engineering Journal, 2015, 9: 7-11 CAO Ming-Jie, Ding Chun-Mei, Ren Ze-Dong Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, China. Electronic publication date 27/2/2015 [DOI: 10.2174/1874149501509010007]

  • Electroosmotic Dewatering

    Table 2 describes the potential applications of dead end electrofiltration and electroosmotic dewatering or draining for several industrial sectors. Investigations carried out on both dead end electrofiltration and pressurized electroosmotic dewatering show the potential of those techniques (1) to dewater (or concentrate) mineral slurry and biological suspension by accelerating the solid ...

  • Electroosmotic dewatering of dredged sediments: Bench-scale inve…

    Electro-osmosis treatment techniques and their effect on dewatering of ...

  • Electroosmotic dewatering of dredged sediments: Bench ...

     · Electroosmotic dewatering essentially involves applying a small electric potential across the sediment layer, thereby inducing rapid flow as a result of physico-chemical and electrochemical processes. A series of bench-scale electrokinetic experiments were conducted on actual dredged sediment samples from the Indiana Harbor to investigate ...

  • Water-resistant nanopaper with tunable water barrier and ...

     · Nevertheless, it usually takes 1–4 h for dewatering of suspensions of individualized NCs (Sinquefield, Ciesielski, Li, Gardner, & Ozcan, 2020). ... Electroosmotic dewatering of cellulose nanocrystals. Cellulose, 25 (4) (2018), pp. 2321-2329. CrossRef View Record in Scopus Google Scholar.

  • Electroosmotically enhanced drying of biomass (Journal ...

     · The U.S. Department of Energy''s Office of Scientific and Technical Information

  • Moisture Control Using Intelligent Single Well Electro ...

    osmotic Dewatering Systems in controlling of water seepage through porous materials such as reinforced concrete. The broad end product of this work is a performance envelope for the use of alternative waterproofing ... ElectroOsmotic Pulse Technology For Prevention of

  • PED: pressurized electroosmotic dewatering

    electroosmotic dewatering (FED) of ultra-fine coal suspensions. The tests show that FED increases the dewatering rate and decreases the final moisture content as compared to conventional processes. Other slurries, slimes and sludges have also been dewatered using the FED process and the results have proven that the FED process is effective with ...

  • Electroosmotic dewatering of cellulose nanocrystals

    One of the main challenges for industrial production of cellulose nanocrystals is the high energy demand during the dewatering of dilute aqueous suspensions. It is addressed in this study by utilising electroosmotic dewatering to increase the solid content of suspensions of cellulose nanocrystals. The solid content was increased from 2.3 up to 15.3 wt%, i.e. removal of more than 85% of all the ...

  • Methods of Dewatering

     · Clean, free draining sands can be effectively dewatered by wells or well-points. Drainage of sandy silts and silts will usually require the application of additional vacuum to well or wellpoint dewatering systems, or possibly the use of the electroosmotic method of dewatering …

  • Electroosmotic dewatering of cellulose nanocrystals

    It is addressed in this study by utilising electroosmotic dewatering to increase the solid content of suspensions of cellulose nanocrystals. The solid content was increased from 2.3 up to 15.3 wt%, i.e. removal of more than 85% of all the water present in the system, at a much lower energy demand than that of thermal drying.

  • 22. Yu XY (Yu Xiaoyan), Zhang ST (Zhang Shuting), Xu H (Xu Hui), Zheng L (Zheng Lei), Lu XB (Lue Xuebin), Ma DG (Ma Degang). Influence of Filter Cloth on the Cathode on the Electroosmotic Dewatering of Activated Sludge.

  • ELECTRO-OSMOSIS DEWATERING AND ELECTROKINETIC ...

    Comparison of dewatering effect between electro-osmosis and filter pressing based on AMORAS, which is a dredged sludge disposal project in Antwerp, was presented in this paper.

  • Electroosmotic Dewatering | Products & Suppliers ...

    Typically electroosmotic dewatering of clay-rich materials is of the order of 1 to 4 orders of magnitude faster than hydraulic dewatering, with a typical value of electro-osmotic permeability (ke) for a …

  • Electroosmotic Dewatering

     · Electroosmotic Flow through a Capillary. Electroosmosis in Porous Media. Electroosmotic Dewatering of Compressible Solid‐Liquid Mixtures. Industrial Applications. Conclusions. Nomenclature. References

  • ELECTROOSMOTIC DEWATERING (EOD) OF CLAYS AND …

    ABSTRACT In the electroosmotic dewatering (EOD) of clays, suspensions and fines, a continuous or interrupted DC voltage, V, is applied between the anode and the cathode. In the previous literature on this subject the components of V have not been completely clarified. Following a brief outline of the EOD that emphasizes the central role of the electrochemical double layer, we provide an ...

  • Electro-osmosis

     · An electro-osmotic pump is an unusual and interesting way to pump fluids and also measure their flow rate with only an electric field (no magnets). Refs (in ...

  • Application of Electroosmosis for Sludge Dewatering—A ...

     · A review of the theoretical analysis of electroosmotic dewatering is presented. The equations representing electroosmotic flow through porous media are initially discussed. Consolidation theory, which describes the progress of dewatering, is then described. In addition, various empirical research results addressing the effects of operational ...

  • Experimental analysis of the effect of mineral composition ...

     · Mahmoud et al. analyzed the electroosmotic dewatering of two different types of sludge in terms of electrochemistry and electroosmotic dewatering rate. Zhang et al. carried out electroosmosis tests on lake mud mixed with nanoparticles (NPs). The results showed that the addition of NPs improved the physical properties of the soil and the ...

  • ELECTROOSMOT1C DEWATERING UNDER A. C. ELECTRIC FIELD …

     · ABSTRACT D.C. electric field has been usually used for electroosmotic dewatering. Under the condition of D.C., however, electrical contact resistance between the electrode and dewatering material is increased considerably with the process of dewalering. Such a circumstance hinders continuation of effective electroosmotic dewatering. To reduce the hindrance, application of …

  • Electroosmosis

     · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How works Test new features Press Copyright Contact us Creators ...

  • Explain Electro-osmosis with diagram? | Colloidal State ...

    The charged colloidal particles move under the influence of an electric field during electrophoresis. If electrophoresis is avoided by maintaining the partic...

  • Electro-osmosis treatment techniques and their effect on ...

     · Electroosmotic dewatering under A. C. electric field with periodic reversals of electrode polarity Drying Technol., 17 ( 3 ) ( 1999 ), pp. 539 - 554 CrossRef View Record in …

  • CN105016601A

    The invention relates to an electro-osmotic dewatering technology for biological sludge, which comprises the following steps: 1)mechanical dewatering treatment; 2) electro-osmotic dewatering pretreatment; 3)electro-osmotic dewatering treatment; 4)dewatering filtrate recovery; and 5) dewatering filter cake collection. The water content of the dewatering filter cake obtained in the …

  • WasteWater System: Electroosmosis for Sludge Dewatering

    Electroosmosis for Sludge Dewatering. Electroosmosis or application of Electroosmotic flow can be used as a method to dewater and make the sludge denser by utilizing electrical current in order to make the whole process possible. The working principle is that colloidal particles are usually charged and thus when electric field is present, it ...

  • Electroosmotic dewatering of bentonite suspensions ...

     · Electroosmotic dewatering of bentonite suspensions S. Ju, M. E. Weber and A. S. Mujumdar Department of Chemical Engineering, McGill University, Montreal, Canada Bentonite suspensions were dewatered by electroosmosis under conditions of constant DC voltage and constant DC current in a 5-cm diameter column.

  • WO2010113846A1

    In dewatering sludge, which is formed in a process of biologically treating various industrial effluents or the like, by using an electroosmotic dewatering device, the electroosmotic dewatering treatment can be efficiently carried out while minimizing the cost for chemicals and requiring no additional element, such as a dissolution tank or a heater, or no extra energy.

  • CN102060427B

    The invention relates to an electroosmosis dewatering method and a device of a water-containing material. In the invention, a water-containing material is dewatered by utilizing a direct-current electric field; an electroosmosis dewatering unit comprises a cathode made of wire mesh capable moving, an anode capable of lifting on the cathode panel along the vertical direction and a subsidiary ...

  • Title: Design and modelling of electroosmotic dewatering

    The results showed that electroosmotic dewatering of sludge is both feasible and potentially economic. It is also shown that the use of the Helmholtz-Smolucowski flow eqPation, together with the assumptions of no electrochemical reaction and a constant electroosmotic permeability, to predict the dewatering process is not sound.

  • Electroosmotic Pumping for Dewatering Sewage Sludge

    ----- ELECTROOSMOTIC PUMPING FOR DEWATERING SEWAGE SLUDGE by Jerome Greyson Rocketdyne, A Division of North American Rockwell Corporation Canoga Park, California 91304 for the FEDERAL WATER QUALITY ADMINISTRATION DEPARTMENT OF THE INTERIOR Program #17070 EHE Contract #14-12-568 FWQA Project Officer, Dr. R. B. Dean Advanced Waste Treatment …

  • What is Electro-Osmosis?

     · Electro-osmosis is the migration of water (and whatever is contained in the water) through a porous membrane resulting from a potential difference caused by the flow of electric charge through the membrane. The liquid transportation rate depends on: The properties of liquid. The properties of solid. The applied potential.

  • Electro-Osmotic Dewatering under Electro-Osmotic Pulse ...

    Electro-Osmotic Dewatering under Electro-Osmotic Pulse Technology. Direct current (DC) electric fields have been used for electro-osmotic dewatering. Under DC conditions, however, the electrical contact resistance between the electrode and the dewatering material increases considerably during the process of dewatering.

  • Electroosmosis presentation

     · Electroosmosis presentation. 1. Treatment for Building Humidity The principles of the electroosmosic system. 2. Rising Damp. 3. Rising Damp. 4. Before the installation Water within a wall moves in the opposite way from the gravity force, upwards, from, which is situated on the ground to which is situated on the wall Humidity and electric ...

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