Treatment of tunnel wash water: case study from Brno

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F22%3APU146414" target="_blank" >RIV/00216305:26110/22:PU146414 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.deswater.com" target="_blank" >https://www.deswater.com</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5004/dwt.2022.28791" target="_blank" >10.5004/dwt.2022.28791</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Treatment of tunnel wash water: case study from Brno

Popis výsledku v původním jazyce

Tunnel wash water has been repeatedly reported to contain higher volume of pollutants, but its treatment is not legally bounded in many countries of EU and elsewhere. In this study, three sam-plings of tunnel wash water were carried out during 2019 and 2020. First sampling determined the chemical pollutants and helped to design the experimental tunnel wash water treatment. Second and third samplings were analysed and later treated in glasses filter pre-tests using 4 different adsorbents. As adsorbent were used food waste biochar, activated food waste biochar, wooden biochar and as the conventional absorbent of granulated activated carbon as a control. The glasses pre-tests focused on determination appropriate contact time and amount of adsorbent. Analyses were focused on organic and inorganic pollutants contained in tunnel wash water. The results of the analysis included undissolved substances, C10-C40 hydrocarbons, chlorides, sulfates, heavy metals, and other chemical elements. The analyses showed that biochar had comparable effect on pollutants reduction such as granulated activated carbon. The adsorption had mainly effect on reducing concentration of toxic metals especially Zn (94.7%) and Cu (50.8%). The highest level of reduction was measured for Fe (98.0%). On contrary the results of tensides, sulfates and some of chemical elements showed small or none effect. For better reducing of all pollutants must pre-cede another level of treatment. The results showed that adsorption on the filter medium could be one of treatment processes, and cheaper biochar represents an eco-friendly way of treatment tunnel wash water, which belongs among the important strategies of circular economy.

Název v anglickém jazyce

Treatment of tunnel wash water: case study from Brno

Popis výsledku anglicky

Tunnel wash water has been repeatedly reported to contain higher volume of pollutants, but its treatment is not legally bounded in many countries of EU and elsewhere. In this study, three sam-plings of tunnel wash water were carried out during 2019 and 2020. First sampling determined the chemical pollutants and helped to design the experimental tunnel wash water treatment. Second and third samplings were analysed and later treated in glasses filter pre-tests using 4 different adsorbents. As adsorbent were used food waste biochar, activated food waste biochar, wooden biochar and as the conventional absorbent of granulated activated carbon as a control. The glasses pre-tests focused on determination appropriate contact time and amount of adsorbent. Analyses were focused on organic and inorganic pollutants contained in tunnel wash water. The results of the analysis included undissolved substances, C10-C40 hydrocarbons, chlorides, sulfates, heavy metals, and other chemical elements. The analyses showed that biochar had comparable effect on pollutants reduction such as granulated activated carbon. The adsorption had mainly effect on reducing concentration of toxic metals especially Zn (94.7%) and Cu (50.8%). The highest level of reduction was measured for Fe (98.0%). On contrary the results of tensides, sulfates and some of chemical elements showed small or none effect. For better reducing of all pollutants must pre-cede another level of treatment. The results showed that adsorption on the filter medium could be one of treatment processes, and cheaper biochar represents an eco-friendly way of treatment tunnel wash water, which belongs among the important strategies of circular economy.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20400 - Chemical engineering

Projekt

<a href="/cs/project/TJ02000262" target="_blank" >TJ02000262: Zpracování gastro odpadu do podoby pevného uhlíkatého produktu k materiálovému využití</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Desalination and Water Treatment (online)

ISSN

1944-3994

e-ISSN

1944-3986

Svazek periodika

271

Číslo periodika v rámci svazku

september 2022

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

11

Strana od-do

27-37

Kód UT WoS článku

000894216100003

EID výsledku v databázi Scopus

2-s2.0-85140839733