پلاک 1688، جاده شرقی گائوکه، ناحیه جدید پودونگ، شانگهای، چین.
پلاک 1688، جاده شرقی گائوکه، ناحیه جدید پودونگ، شانگهای، چین.
Mechanical solid/liquid separation or dewatering of fine-grained suspensions is difficult to accomplish with any degree of success, cost effectiveness and/or practicality. The use of electroosmosis, the electrokinetic transport of water, which is theoretically independ- ent of pore size, on the other hand can be quite slow and consume a great deal of electrical energy.
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.
(1999). ELECTROOSMOTIC DEWATERING (EOD) OF CLAYS AND SUSPENSIONS: COMPONENTS OF VOLTAGE IN AN ELECTROOSMOTIC CELL. Drying Technology: Vol. 17, No. 3, pp. 565-574.
Electroosmotic dewatering of Bentonite suspensions under conditions of constant DC voltage and constant DC current was investigated experimentally in a column 5 cm in diameter. The suspensions were prepared with CaCl$ sb2$ in distilled water with concentrations up to 1 M.
Sep 01, 2005· 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 ...
Pressure electroosmotic dewatering with continuous removal of electrolysis products. Olivier Larue. Related Papers. Sedimentation and water electrolysis effects in electrofiltration of kaolin suspension. By olivier larue. Direct contact membrane distillation of Moroccan olive mill wastewater.
most research has concentrated on pressurised electroosmotic dewatering (PED), that is, the application of a DC electric field during the expression of formed cakes or porous media (Sprute and Kelsh, 1980; Lockhart, 1983; Iwata et al., 1991; Barton et al., 1999; Weber and Stahl, 2002b).
Electrocoagulation is applied to sewage sludge as a pretreatment process of an electrodewatering system to reduce the water content of sludge generated in wastewater treatment. The electrodewatering system, by incorporating an electric field as an additional driving force to the conventional pressure dewatering, has been evaluated as a function of an electrode material, applied voltage and ...
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 clay soil being 10-5 . Influence of Chemical Conditioning on Electroosmotic Dewatering Behavior for …
The electroosmotic dewatering method is a new typical technology in soybean products, especially in bean curd skin. 在 豆制品 加工 中, 特别是 豆腐 皮 的 加工 中, 采用 电 渗透 方法 进行 脱水 是 一种 有 …
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 ...
Feb 26, 2013· (1999). ELECTROOSMOTIC DEWATERING (EOD) OF CLAYS AND SUSPENSIONS: COMPONENTS OF VOLTAGE IN AN ELECTROOSMOTIC …
Apr 27, 2007· (1999). ELECTROCHEMICAL TREATMENT OF TUMORS (ECT): ELECTROOSMOTIC DEWATERING (EOD) AS THE PRIMARY MECHANISM. Drying Technology: Vol. 17, No. 3, pp. 586-596.
Mar 01, 2011· The enhancement of conventional pressure consolidation by an electric field, known as electroosmotic dewatering (EOD), gave some encouraging results for sewage sludge (Friehmelt and Gidarakos, 1996, Barton et al., 1999, Mujumdar and Yoshida, 2008). After building mechanically a filter cake, an electric field can be applied between two ...
A laboratory-scale electrodewatering system, incorporating an electric field as an additional driving force to conventional pressure dewatering, has been developed to decrease the water content of sludges generated in wastewater treatment. Consisting of a piston-type filter press, a power supply and a data acquisition system, the electrodewatering system's performance was evaluated as a ...
[48] YOSHIDA H, KITAJYO K, NAKAYAMA M. Electroosmotic dewatering under AC electric field with periodic reversals of electrode polarity [J]. Drying Technology, 1999, 17(3): 539-554. [49] ALSHAWABKEH A N, GALE R J, OZSU-ACAR E, et al. Optimization of 2-D electrode configuration for electrokinetic remediation [J].
Los residuos del procesamiento de cobre tienen bajas cargas eléctricas en comparación con el agua y las partículas, que tienen carga negativa [14 14 ORSAT, V., RAGHAVAN, G.S.V., SOTORINAL, S., et al., "Roller press for electro-osmotic dewatering of bio-materials", Drying technology, v. 17, n. 3, pp. 523-538, Mar. 1999.]. Para equilibrar ...
[48] YOSHIDA H, KITAJYO K, NAKAYAMA M. Electroosmotic dewatering under AC electric field with periodic reversals of electrode polarity [J]. Drying Technology, 1999, 17(3): 539-554. [49] ALSHAWABKEH A N, GALE R J, OZSU-ACAR E, et al. Optimization of 2-D electrode configuration for electrokinetic remediation [J].
Apr 27, 2007· (1999). SALIENT EXPERIMENTAL OBSERVATIONS ON THE ELECTROOSMOTIC DEWATERING (EOD) OF CLAYS AND SLUDGES AND THEIR INTERPRETATION. Drying Technology: Vol. 17, No. 3, pp. 575-584.
Electroosmotic dewatering of fine grained material. Hansen, Henrik K. (Project Manager) Christensen, Iben Vernegren (Project Participant) Ottosen, Lisbeth M. (Project Participant) ... 01/01/1999 → 01/05/2000: View all. View less. Fingerprint. Explore the research topics touched on by this project. These labels are generated based on the ...
Jul 01, 2006· However, most research has concentrated on pressurised electroosmotic dewatering (PED), that is, the application of a DC electric field during the expression of formed cakes or porous media (Sprute and Kelsh, 1980, Lockhart, 1983a, Iwata et al., 1991, Barton et al., 1999; Weber and Stahl, 2002b). Macroscopic modelling efforts have been ...
Jul 31, 2008· Abstract. In practical application of electro-osmotic dewatering (EOD), it is very important to increase the dewatering rate, and to decrease the final water content and the electric power consumption for water removal. In a batch apparatus for dewatering operation of colloidal suspensions or sludges, electric power applications, such as ...
Sep 11, 2012· Vijh AK (1999) Electroosmotic dewatering (EOD) of clays and suspensions: components of voltage in an electroosmotic cell. Dry Technol 17:565–574 Google Scholar. 197. Weber K (2002) Untersuchungen zum Einfluss eines elektrischen Feldes auf die kuchenbildende Pressfiltration, VDI Verlag Google Scholar.
Feb 05, 2011· The mechanical dewatering of activated sludge is difficult due to its high compressibility, which can be improved by electroosmosis. In electroosmosis, direct electric field is applied to sludge cake. Based on the conductivity modes of different sludge beds, a model is presented in which sludge cake consists of two series parts in the circuit: a dewatered bed and an undewatered one.
Sep 14, 1995· Electroosmotic Flow through a Capillary. Electroosmosis in Porous Media. Electroosmotic Dewatering of Compressible Solid‐Liquid Mixtures. Industrial Applications. Conclusions. Nomenclature. References
dewatering alone cannot achieve the high DS values required for thermal valorisation of sludge, but it is often necessary to add thermal drying units. Seeking new and efficient methods for dewatering, many authors (Yoshida, 1993; Barton et al., 1999; Gingerich et al., 1999) exploited electro-osmosis in order to
Sep 01, 2004· Electroosmotic dewatering (EOD) of clays and suspensions: components of voltage in electroosmotic cell Drying Technol, 17 ( 1999 ), pp. 565 - 574 CrossRef View Record in …
Mar 01, 1999· Salient experimental observations on the electroosmotic dewatering (EOD) of clays and sludges and their interpretation
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 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 …
Published: July 1999; Electrochemical field effects in biological materials: electro-osmotic dewatering of cancerous tissue as the mechanistic proposal for the electrochemical treatment of tumors. A. K. Vijh 1 Journal of Materials Science: Materials in Medicine volume 10, pages 419–423 (1999)Cite this article
Aug 24, 2014· electroosmotic dewatering, electroosmotic drainage, electrical drainage, electrical dewatering, drainage by electroosmosis, dewatering by electroosmosis elektroosmotische Entwässerung f, Elektro(osmose)entwässerung, Grundwasserabsenkung durch Elektroosmose
The application of electrical fields to dewatering and drying is reviewed. In particular, the developments in electroosmotic dewatering (EOD) of colloidal slurries are discussed in terms of fundamental associated phenomena, as well as the methods of enhancement of EOD. The electrohydrodynamic (EHD) drying of biological materials are discussed in terms of its fundamentals, current status, and ...
