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Saturday, August 1, 2020 | History

4 edition of Intermediate to long term optimization of dead-end ultrafiltration found in the catalog.

Intermediate to long term optimization of dead-end ultrafiltration

Edwin Zondervan

Intermediate to long term optimization of dead-end ultrafiltration

by Edwin Zondervan

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Published by E. Zondervan] in [Groningen .
Written in English

    Subjects:
  • Water -- Purification -- Membrane filtration

  • Edition Notes

    StatementEdwin Zondervan.
    Classifications
    LC ClassificationsTD442.5 .Z66 2007
    The Physical Object
    Pagination[xvi], 172 p.:
    Number of Pages172
    ID Numbers
    Open LibraryOL22559440M
    ISBN 109789036731980, 9789036731973
    LC Control Number2007465616

    Intermediate-term: A list of rules intended to bias the search towards promising areas of the search space. Long-term: Rules that promote diversity in the search process (i.e. regarding resets when the search becomes stuck in a plateau or a suboptimal dead-end). intermediate-term-levels, (Filtration cycle and Chemical cleaning cycle) decisions are made concerning settings at the production level (assignment of volumes and times over the cycles). In principle a third layer or long-term level can be added where strategic decisions are made (operational settings with respect to membrane life time).

    A unified model of the time dependence of flux decline for the long-term ultrafiltration of whey. Journal of Membrane Science , (), DOI: / Naum Fraidenraich, Olga C. Vilela, Gilmário A. Lima, Jeffrey M. Gordon. 1. Introduction. In the petroleum industry, produced water (PW) is the largest waste stream, especially as the water cut increases with oil field maturity [1,2].Typically, the PW is treated to comply with Danish regulations, where the oil-in-water (OiW) concentration must be below 30 mg/L before discharged and the total amount of discharged dispersed oil must remain below tonnes annually.

    Tabu search, created by Fred W. Glover in and formalized in , is a metaheuristic search method employing local search methods used for mathematical optimization.. Local (neighborhood) searches take a potential solution to a problem and check its immediate neighbors (that is, solutions that are similar except for very few minor details) in the hope of finding an improved solution. in flgure The simplest operating mode is the dead-end operation. In this case, all feed is forced through the membrane, resulting in a build-up of fouling, which results in a loss of performance. In dead-end membrane flltration, frequent cleaning is a necessity. For many industrial applications.


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Intermediate to long term optimization of dead-end ultrafiltration by Edwin Zondervan Download PDF EPUB FB2

Intermediate to long term optimization of dead-end ultrafiltration Paperback – October 1, by Edwin Zondervan (Author, Editor, Illustrator) › Visit Amazon's Edwin Zondervan Page. Find all the books, read about the author, and more. See search results for Author: Edwin Zondervan. Intermediate to long term optimization of dead-end ultrafiltration.

By Edwin Zondervan. Abstract. Ultrafiltration (UF) is increasingly used as a technology for surface water purification. UF membranes have high selectivity and became economically attractive during the last fifteen years.

In the short term the membrane is cleaned by means Author: Edwin Zondervan. The content of this thesis has lead to the following publications: 1. Zondervan E., Betlem B.H.L. and Rofiel B. (), Development of a dy-namic model for cleaning ultraflltrat. Title: Intermediate to long term optimization of dead-end ultrafiltration: Author: Zondervan, Edwin: Publisher: Faculty of Science and Engineering, Product TechnologyAuthor: Edwin Zondervan.

dynamic optimization theory to control fouling in a reverse osmosis instal-lation. Perrot et al. [3] applied the dynamic optimization approach to a microflltration plant processing sugar. In recent studies dynamic optimiza-tion of a flltration trajectory of a dead-end ultraflltration plant processing surface water was reported by Blankert et.

in the pilot setup. Pre-flltered feed water was flltrated in dead-end mode over the membrane module with an operating °ux of 50 l:h:¡1:m¡2 during 20 minutes. During flltration, °occulant was added to the feed water with a concentration of ppm Al3+ (Quadra°oc PUS, ViVo Chem B.V.). Af. Long term fouling control In this chapter, a multi-objective control system is developed and experi-mentally tested.

In an earlier study it was found that coagulant dosing in ultraflltration can be used efiectively to control the fouling resistance at the start of a flltration cycle. It may be expected that chemical cleaning variables. CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Intermediate to long term optimization of dead-end ultrafiltration The research described in this thesis was carried out at the chemical engi.

In principle a third layer or long-term-level can be added where strategic decisions are made (operational settings with respect to membrane life time). Download: Download high-res image (KB) Download: Download full-size image; Fig. Hierarchical optimization structure for an ultrafiltration process.

Intermediate to Long Term Optimization of Dead-end Ultrafiltration (UF) is increasingly used as a technology for surface water purification. UF membranes have high selectivity and became economically attractive during the last fifteen years.

Intermediate term optimization, Long term optimization of UF membranes, where membrane ageing/lifetime is incorporated, is another area of research interest. Blankert, Short to medium term optimization of dead-end ultrafiltration, Ph.D.

dissertation,Groningen University, the Netherlands (Chapter 5). Intermediate term optimization, where membrane performance is optimized over multiple production cycles was also reported [4,5]. Modeling and optimization of membrane lifetime in dead-end. In recent studies dynamic optimization of a filtration trajectory of a dead-end ultra filtration plant processing surface water was reported by Blankert et al.

[4, 5]. Although optimization of. Intermediate term optimization, where membrane performance is optimized over multiple production cycles was also reported [4, 5].

Long term optimization of UF membranes, where membrane ageing. The optimization calculations are based on a process model for long-term membrane fouling. A performance index based on the gross cash-flow as result of the operation is applied. Long-term Hazard To Drinking Water Resources From Landfills, Paperback By Spi ー Pokedoll.

ー Pokedoll Plush Doll With Tag Long-term Storage. Pokemon Center. Pokemon Center Lizard Pokedoll Plush Doll With Tag Long-term. Long-term Psychodynamic. The main objective of this paper is to study the effect of new air backwash on dead-end ultrafiltration of seawater with a pilot at semi-industrial scale (20 m3/day).

To control membrane fouling, two different backwashes were used to clean the membrane: classical backwash (CB) and new air backwash (AB) that consists of injecting air into the membrane module before a classical backwash. Intermediate to long term optimization of dead-end ultrafiltration The research described in this thesis was carried out at the chemical engi Topics: Prof.

Roffel. Year: OAI identifier: oai: Intermediate to long term optimization of dead-end ultrafiltration Zondervan, E.,Groningen: Rijksuniversiteit Groningen. Research output: Thesis › Phd Thesis 4 Research NOT TU/e / Graduation NOT TU/e). Ultrafiltration itself, via baroreceptor-mediated reflexes, may re-set neurohormonal activation, which may explain the intermediate- and long-term benefits of ultrafiltration.

11 The removal of myocardial depressant factors may also occur. 14 In 36 patients with acutely decompensated HF, ultrafiltration was associated with increased cardiac.

E. Zondervan, B. Blankert, B.H.L. Betlem, B. RoffelDevelopment of a multi-objective coagulation system for long-term fouling control in dead-end ultrafiltration Journal of Membrane Science, (2) (), pp.

Modeling, optimization and control in dead-end ultrafiltration. By E Edwin Zondervan and B Blankert. In the short term, the membrane is cleaned by means of backwashing, and in the long term the membrane is cleaned with cleaning chemicals.

Although backwashing and chemical cleaning are useful methods to prevent fouling, the execution of.Our team displays a huge array of Long Term. Shop now. Long Term Reviews. Find Long Term for sale. Buy Long Term on eBay now! Hospital Bed. Hospital Bed Stryker Secure Ii Long Term Care Medical Bed.

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