Experimental Investigation of Membrane Distillation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F16%3AN0000055" target="_blank" >RIV/28676092:_____/16:N0000055 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24220/16:00000686

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Experimental Investigation of Membrane Distillation

Popis výsledku v původním jazyce

Membrane distillation (MD) is a novel separation technology, driven by a temperature difference. Vapour molecules are transported through a porous hydrophobic membrane by a difference in partial vapour pressure. Similarly to reverse osmosis, ions are retained on the concentrate side and pure water is collected on the distillate side. Despite many attractive features there are no large scale applications yet, the main reason being the lack of proper hydrophobic membranes, providing high fluxes and high distillate purity. Membranes for MD do not need to be selective, as they serve only as an interface between liquid and vapour. Hydrophobic microfiltration membranes are mostly used today, and they can be made of various polymers, such as polyethylene (PE), polyethersulfone (PES) or polytetrafluoroethylene (PTFE). The membrane performance was studied on a direct contact membrane distillation (DCMD) testing unit. It is based on a flat sheet module with the membrane area of 10x20 cm. A peristaltic pump drives the hot feed and the cold distillate in counter-current mode to a horizontally positioned module, the cold distillate on top, hot feed on the bottom, in order to minimize heat losses. The transparent module enables a close observation of bubble formation or eventual clogging of the spacer channels. Flux is calculated from a difference in mass of both concentrate and distillate in time.

Název v anglickém jazyce

Experimental Investigation of Membrane Distillation

Popis výsledku anglicky

Membrane distillation (MD) is a novel separation technology, driven by a temperature difference. Vapour molecules are transported through a porous hydrophobic membrane by a difference in partial vapour pressure. Similarly to reverse osmosis, ions are retained on the concentrate side and pure water is collected on the distillate side. Despite many attractive features there are no large scale applications yet, the main reason being the lack of proper hydrophobic membranes, providing high fluxes and high distillate purity. Membranes for MD do not need to be selective, as they serve only as an interface between liquid and vapour. Hydrophobic microfiltration membranes are mostly used today, and they can be made of various polymers, such as polyethylene (PE), polyethersulfone (PES) or polytetrafluoroethylene (PTFE). The membrane performance was studied on a direct contact membrane distillation (DCMD) testing unit. It is based on a flat sheet module with the membrane area of 10x20 cm. A peristaltic pump drives the hot feed and the cold distillate in counter-current mode to a horizontally positioned module, the cold distillate on top, hot feed on the bottom, in order to minimize heat losses. The transparent module enables a close observation of bubble formation or eventual clogging of the spacer channels. Flux is calculated from a difference in mass of both concentrate and distillate in time.

Druh

D - Stať ve sborníku

CEP obor

JP - Průmyslové procesy a zpracování

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

C - Předmět řešení projektu podléhá obchodnímu tajemství (§ 504 Občanského zákoníku), ale název projektu, cíle projektu a u ukončeného nebo zastaveného projektu zhodnocení výsledku řešení projektu (údaje P03, P04, P15, P19, P29, PN8) dodané do CEP, jsou upraveny tak, aby byly zveřejnitelné.

Název statě ve sborníku

Permea / Melpro, Book of Abstracts

ISBN

978-80-904517-6-6

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

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Název nakladatele

Czech Membrane Platform

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

1. 1. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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