Recovering Salts from Industrial Brines by Nf-md: Case Studies on IEX Regeneration Wastewater and Chloride Rich Wash Water from a Zinc Ore Refinery

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F14%3A%230000665" target="_blank" >RIV/46747885:24620/14:#0000665 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.ecostp.org/" target="_blank" >http://www.ecostp.org/</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Recovering Salts from Industrial Brines by Nf-md: Case Studies on IEX Regeneration Wastewater and Chloride Rich Wash Water from a Zinc Ore Refinery

Popis výsledku v původním jazyce

The possibilities for salt recovery from industrial brines by a coupled nanofiltration - membrane distillation (NF-MD) process are illustrated in this paper by two case studies i.e. the recovery of water and chloride salts from Ion Exchange (IEX) regenerate and from zinc ore refinery wastewater. Ion exchange based demineralization of tap water for the preparation of process water results in a saline regeneration wastewater. Techno-economical evaluation shows that NF-MD on this wastewater is economicallyfeasible for midsized and larger scale demineralization plants (200 to 2000 m3/day demineralized water) but only when discharge is prohibitively expensive or not allowed. Scaling is found to be a main bottleneck for NF-MD. It is therefore concluded thatfurther physicochemical pretreatment is required to improve the process. The cost benefits of water reuse (1.5% to 3.2%) and salt recuperation (0.16% to 0.36%) are small when compared to the overall treatment cost. The main benefits are

Název v anglickém jazyce

Recovering Salts from Industrial Brines by Nf-md: Case Studies on IEX Regeneration Wastewater and Chloride Rich Wash Water from a Zinc Ore Refinery

Popis výsledku anglicky

The possibilities for salt recovery from industrial brines by a coupled nanofiltration - membrane distillation (NF-MD) process are illustrated in this paper by two case studies i.e. the recovery of water and chloride salts from Ion Exchange (IEX) regenerate and from zinc ore refinery wastewater. Ion exchange based demineralization of tap water for the preparation of process water results in a saline regeneration wastewater. Techno-economical evaluation shows that NF-MD on this wastewater is economicallyfeasible for midsized and larger scale demineralization plants (200 to 2000 m3/day demineralized water) but only when discharge is prohibitively expensive or not allowed. Scaling is found to be a main bottleneck for NF-MD. It is therefore concluded thatfurther physicochemical pretreatment is required to improve the process. The cost benefits of water reuse (1.5% to 3.2%) and salt recuperation (0.16% to 0.36%) are small when compared to the overall treatment cost. The main benefits are

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

<a href="/cs/project/ED0005%2F01%2F01" target="_blank" >ED0005/01/01: Centrum pro nanomateriály, pokrocilé technologie a inovace</a><br>

Návaznosti

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

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

EcoTechnologies for Wastewater Treatment

ISBN

9788869250026

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

161-165

Název nakladatele

IWA

Místo vydání

Verona, Italy

Místo konání akce

Verona, Italy

Datum konání akce

1. 1. 2014

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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