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Elektrokemijske tehnologije za čisto okolje - razvojne smeri in uporaba = Electrochemical technologies for clean environment - trends and usesZevnik, Ciril ...V prispevku predstavljamo vlogo elektrokemičnih postopkov pri obdelavi procesnih odpadnih vod v industrijskih obratih. Ti omogočajo učinkovito zmanjševanje koncentracije težkih kovin pod zakonsko ... dovoljeno mejo. Zmanjšujejo količino odpadkov in porabo surovin, ker z njimi praviloma ne vnašamo novih spojin v proces. V največji meri omogočajo postopke recikliranja in s tem optimizacijo proizvodnje. Elektrokemični tehnološki postopki bodo v prihodnosti osnova tako imenovanih tehnologij "zero effluent" oziroma "čiste proizvodnje", kot jo zahtevajo najnovejše smernice EZ in ki se bodo v praksi uresničevale predvsem kot ekotehnološka optimizacija proizvodnje. Na nekaterih izbranih primerih iz prakse smo osvetlili uporabo elektrokemičnih postopkov, predvsem pri obdelavi procesnih in/ali odpadnih vods postopki elektrolize in elektrodialize. Reakcije oksidacije in redukcije potekajo v elektrokemičnih reaktorjih, navadno predeljenih z ionsko izmenljivimi membranami in uporabo vrteče se katode. Primeri učinkovite uporabe elektrokemičnih postopkov so: odstranjevanje težkih kovin iz raztopine cinkovega sulfata, obdelava odpadnih vod, ki vsebujejo kompleksante, obdelava odpadnih vod iz proizvodnje tiskanih vezij, vzdrževanje koncentracije niklja v galvanski kopeli, redukcija kromatnih odpadnih vod iz postopkov kromatiranja.Source: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 35, št. 6, nov.-dec. 2001, str. 389-394)Type of material - article, component partPublish date - 2001Language - slovenianCOBISS.SI-ID - 330079
Author
Zevnik, Ciril |
Nastran, Janez |
Vončina, Danijel |
Petkovšek, Marko, 1972-
Topics
elektrokemija |
elektroliza |
elektrodializa |
odpadne vode |
težke kovine
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source: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 35, št. 6, nov.-dec. 2001, str. 389-394)
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Zevnik, Ciril | 06609 |
Nastran, Janez | 02961 |
Petkovšek, Marko, 1972- | 16349 |
Source: Personal bibliographies
and: SICRIS
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