• Method of dewatering sewage sludge particularly on ...

    Aug 29, 1989· The flocculated and thickened sludge may then be dewatered much more quickly with the dewatering behavior improved additionally by causing a reactivating flocculation to take place on the delivery side of the sludge feed pump. The Figures show a preferred embodiment of the inventive sludge dewatering system using a recessed plate press.

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  • A study of the improvement in dewatering behavior of ...

    A study of the improvement in dewatering behavior of wastewater sludge through the addition of fly ash 865 Korean J. Chem. Eng.(Vol. 27, No. 3) the other hand, the glass bead is a sphere with an MMD of 30µm, ... This suggests that the dewaterability improved as the amount of EDM was increased, because the cake specific resistance (SCR)

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  • Improved dewatering behaviour of clay minerals dispersions ...

    Improved dewatering behaviour of clay minerals dispersions via interfacial chemistry and particle interactions optimization . ... dispersions at pH 7.5 and 22 °C has been investigated to determine the influence of interfacial chemistry and shear on dewatering and particle interactions behavior. Modification of pulp chemistry and behavior was ...

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  • SEPARATION EFFICIENT SLUDGE THICKENING AND …

    behavior), and the operating environment (e.g. explosion-proof design). 3 ... improved today’s industry standards through a number of technological innovations. Energy-saving features ... dewatering mode when it is forbidden to spread liquid sludge on the fields. Pig manure separation also falls

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  • Wet pressing webs of higher-yield kraft pulp for improved ...

    Wet pressing webs of higher-yield kraft pulp for improved strength Daniel F. Caulfield, Teresa L. Young, and Theodore H. Wegner Research Chemist and …

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  • Improved dewatering of nickel laterite ore slurries using ...

    Improved dewatering of nickel laterite ore slurries using superabsorbent polymers Article in Advanced Powder Technology · July 2016 with 40 Reads How we measure 'reads'

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  • Improved Dewatering Behavior of Clay Minerals Dispersions ...

    Request PDF on ResearchGate | Improved Dewatering Behavior of Clay Minerals Dispersions Via Interfacial Chemistry and Particle Interactions Optimization | Orthokinetic flocculation of clay ...

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  • Cake dewatering of some iron ore industrial products ...

    This paper is concerned with studying the dewatering behavior of three samples of iron ore products. The objective is to improve the industrial filtration performance by taking into account the laboratory results. Mineral samples came from the Iron Ore Quadrangle in the state of Minas Gerais, Brazil.

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  • Effects of potassium permanganate conditioning on ...

    Effects of potassium permanganate conditioning on dewatering and rheological behavior of pulping activated sludge: ... Thus, sludge dewaterability was improved with the optimum dosage of 16 g kg −1 dry solid. On the perspective of environmental safety, KMnO 4 conditioning on sludge dewatering is feasible. About. Cited by ...

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  • SolarPress Press roll covers for the highest dewatering ...

    greatly improved as compared to earlier models. Due to these properties, maximum groove depths and widths in particular can be implemented in the surface design. The versatile surface designs give additional void volume for the press roll covers, improve dewatering behavior in the nip and increase dry content. SolarPress A high-performance cover

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  • Adelaide Research & Scholarship: Improved dewatering ...

    Further application of shear to pre-sedimented pulps improved consolidation by 5–7 wt% solid. Higher shear yield stresses and greater settling rates were displayed by PAM A based than PAM N based pulps and this is attributed to the former's more expanded interfacial conformation and greater clay …

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  • Evaluation of Dewatering Performance and Fractal ...

    Jun 29, 2015· The dewatering performance and fractal characteristics of alum sludge from a drinking-water treatment plant were investigated in this study. Variations in residual turbidity of supernatant, dry solid content (DS), specific resistance to filtration (SRF), floc …

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  • Flocculation-dewatering behavior of waste activated sludge ...

    In many cases, the activated sludge and anaerobic sludge will be premixed and transported to the sludge dewatering system, so the alkalinity is affected by the ratio of two sludges and highly changeable in practical operation process. The sludge dewatering performance and process stability can be improved by controlling typical sludge properties.

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  • STATEMENT OF PROJECT OBJECTIVES Dr. Stephen G. Wells ...

    sludge has dewatering behavior identical to that of wet sludge and will establish the baseline dewatering behavior of digested sludge. In addition, the value of several chemical additives (enzymatic materials, ionic materials, and surfactants) in improving mechanical dewatering will be determined by use of a belt filter press.

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  • Interfacial chemistry, particle interactions and improved ...

    Feb 01, 2005· Abstract The influence of hydrolyzable metal ions (Mn(II) and Ca(II)) adsorption on the surface chemistry, particle interactions, flocculation, and dewatering behavior of kaolinite dispersions has been investigated at pH 7.5 and 10.5.

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  • AquaPress Polyurethane roll cover for high dewatering and ...

    + Improved wear behavior and therefore longer grinding intervals + Higher storage capacity by optimized groove design Relative comparison of abrasion resistance Different materials Ingenious groove geometry These improved material characteristics allow for innovative surface patterns. The depth and width of the dewatering

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  • Improved dewatering behavior of clay minerals dispersions ...

    Jan 01, 2006· Polyacrylamide addition, whilst strongly facilitating primary dewatering, at best, played an indifferent role toward improving consolidation of the clay dispersions. The shear induced consolidation behavior appears to result from improved floc network restructuring and inter-floc permeability.

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  • Subject: "dewatering" - PubAg Search Results

    Dewatering from sludge is an important sustainable issue in recent years, in this work, we found the unique behavior: Skeleton builder additions can improve the dewatering performance greatly, which related to the different pore structure of skeleton builder.

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  • WASTE CLAY DISPOSAL IN MINE CUTS - Florida Industrial …

    behavior of waste clays and sand tailings/clay mixtures (Bromwell and Oxford, 1977; Keshian, et al., 1977; Martin, et al., 1977), Bromwell Engineering developed laboratory testing and computer modelling techniques to predict the time rate of consolidation (or dewatering) of waste clays and

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  • Particulates in hydrometallurgy: Part III. Dewatering ...

    Similarly, the dewatering behavior was improved at higher polymer molecular weight. In addition, it was found that the flocculation performance was adversely affected by an increase in the degree of polymer hydrolysis which, in turn, increases the ratio of carboxylic to amide functional groups in the polymer chain.

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  • Improved dewatering behavior of clay minerals ... - DeepDyve

    Jan 01, 2006· Read "Improved dewatering behavior of clay minerals dispersions via interfacial chemistry and particle interactions optimization, Journal of Colloid and Interface Science" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at …

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  • US4861492A - Method of dewatering sewage sludge ...

    Method for dewatering sewage sludge with the aid of organic polymeric flocculating agents (polyelectrolytes) made preferably by emulsion polymerization. To obtain optimum dewatering results, a substantial amount of the aqueous phase of the sludge is removed by decantation after flocculant addition prior to the dewatering treatment proper.

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  • The Effect of Solids Concentration, Flocculant Dosage and ...

    The Effect of Solids Concentration, Flocculant Dosage and Particle Size on Dewatering Behavior of Tailings Sample at Shahrebabk Copper Complex M. R. Garmsiri1*, M. Hosseini Nasab2 1 Department of mining engineering, Sirjan branch, Islamic Azad University, Sirjan, Iran

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  • Improved dewatering behavior of clay minerals dispersions ...

    Improved dewatering behavior of clay minerals dispersions via interfacial chemistry and particle interactions optimization Authors: McFarlane, Angus ; Bremmell, Kristen ; Addai-Mensah, Jonas

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  • Maximum dewatering performance from start to finish

    improved dewatering performance remains in focus. In combination with Maximum dewatering performance from start to finish E-Flex provides better paper quality, immediate startup of the newly installed press fabric as well as higher nip dewatering and corresponding dry content. A number of well-known paper manufac-

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  • (PDF) Optimising the dewatering behaviour of clay tailings ...

    Under optimum orthokinetic con- dewatering behavior of kaolinite dispersions, Journal of Colloid and Interface Science 261 (2) (2003) 349 – 359. ditions of agitation intensity and duration, better floccu- [9] L. Besra, et al., Flocculation and dewatering of kaolin suspensions in lation performance and moderate enhancement of the presence of ...

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  • Wet-end Paper Starches | Cargill

    The paper-making process involves a complex mix of natural and synthetic polymers interacting through mechanical shear forces. Cargill’s cationic starches for the wet-end production phase are far more than just dry strength additives.

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  • The role of MFC/NFC swelling in the rheological behavior ...

    An interesting behavior of MFC furnishes, presented in Fig. 3, showing that dewatering decreases Fig. 3b), observed regardless of the presence of pulp with consistency, as concluded before (Chen et al. fibers, is that the increase in consistency from 10 to 2009; Kang and Paulapuro 2006a, b).

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  • Conditioning and Dewatering Behavior of ATAD Sludges

    The role of iron in improving the dewatering of the sludges was found to be important, with the sludge dewatering being better for sludges with a high iron content. The combination of high pH, divalent cation precipitation, iron deficiency and biopolymer release all contribute to the poor dewatering …

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  • GUIDELINES FOR DEWATERING/DENSIFYING CONFINED …

    GUIDELINES FOR DEWATERING/DENSIFYING CONFINED DREDGED MATERIAL 1. Purpose. The purpose of this manual is to discuss the major concerns and provide information about design, construction, operation and manage-ment of containment areas for dredged material wherein the material is dewatered and densified. This dewatering is done in order to create ...

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  • Surface Phenomena in the Dewatering of Coal

    The dewatering rate, the dewatering behavior of various narrow size distributions, and the addition of several floc- culants, oils, and wetting agents (surfactants) were investigated. Gray found that dewatering was improved by each of the above additions; and he alludes to the fact that the efficacy of several highly impure oils in dewatering ...

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  • Influence analysis for the behavior of dewaterability of ...

    Influence analysis for the behavior of dewaterability of excess sludge in a two-stage vermifilter. ... Results demonstrated that sludge dewatering performance was significantly improved after the primary vermifilter VF1 and the second-stage vermifilter VF2. In addition, the further VF2 treatment exhibited higher effects on sludge dewatering ...

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  • Dewatering performance of fiber-reinforced fly ash slurry ...

    The effect of anionic polyacrylamide flocculant on the dewatering performance was also evaluated. Results indicate that geotextile tubes can be effectively used for dewatering flocculated fly ash slurries, and that the strength of retained fly ash can be improved by adding fibers.

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