Characterization of nanofiltration membrane and its practical use for separation of zinc from wastewater

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F18%3A39912899" target="_blank" >RIV/00216275:25310/18:39912899 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Characterization of nanofiltration membrane and its practical use for separation of zinc from wastewater

Popis výsledku v původním jazyce

The focus of this work is to examine the ability of a commercially available nanofiltration membrane (AFC 30) for the separation of toxic zinc sulphate from wastewater to meet the maximum contaminant level set by government regulation of countries established. In this study, two independent pore models (Donnan Steric Pore model – DSP model, and Steric Hindrance Pore model – SHP model) together with experiments with neutral solutes at various process conditions have been used. A very good agreement was found using the DSP and SHP model, which fit well with the experimental values of different neutral solutes examined. The outcome indicates that the two independent models could be used to predict and interpret the structural properties of nanofiltration (NF) membrane. The influence of the operating variables such as feed solution concentration applied transmembrane pressure, and pH on zinc separation was studied. It has been found that metal rejection increases slightly with increasing of feed concentration in the tested range of 50 – 200 mg Zn/L. A similar trend was observed with the impact of a pressure difference. The maximum value of zinc rejection was 99.3 % for all feed concentrations. The minimum rejection was at a pressure of 5 bars and for the lowest concentration (50 mg Zn/L) was almost 98 %. In addition, rejections of zinc were very high for all pH tested (5.3 – 6.5). The results obtained show that the tested commercially available nanofiltration membrane (AFC 30) is suitable for the separation of zinc from wastewater.

Název v anglickém jazyce

Characterization of nanofiltration membrane and its practical use for separation of zinc from wastewater

Popis výsledku anglicky

The focus of this work is to examine the ability of a commercially available nanofiltration membrane (AFC 30) for the separation of toxic zinc sulphate from wastewater to meet the maximum contaminant level set by government regulation of countries established. In this study, two independent pore models (Donnan Steric Pore model – DSP model, and Steric Hindrance Pore model – SHP model) together with experiments with neutral solutes at various process conditions have been used. A very good agreement was found using the DSP and SHP model, which fit well with the experimental values of different neutral solutes examined. The outcome indicates that the two independent models could be used to predict and interpret the structural properties of nanofiltration (NF) membrane. The influence of the operating variables such as feed solution concentration applied transmembrane pressure, and pH on zinc separation was studied. It has been found that metal rejection increases slightly with increasing of feed concentration in the tested range of 50 – 200 mg Zn/L. A similar trend was observed with the impact of a pressure difference. The maximum value of zinc rejection was 99.3 % for all feed concentrations. The minimum rejection was at a pressure of 5 bars and for the lowest concentration (50 mg Zn/L) was almost 98 %. In addition, rejections of zinc were very high for all pH tested (5.3 – 6.5). The results obtained show that the tested commercially available nanofiltration membrane (AFC 30) is suitable for the separation of zinc from wastewater.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

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OECD FORD obor

20402 - Chemical process engineering

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Waste Forum

ISSN

1804-0195

e-ISSN

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Svazek periodika

neuveden

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

12

Strana od-do

314-325

Kód UT WoS článku

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EID výsledku v databázi Scopus

2-s2.0-85053474443