Is removal of organics and suspended solids in horizontal sub-surface flow constructed wetlands sustainable for twenty and more years?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F19%3AN0000009" target="_blank" >RIV/60460709:41330/19:N0000009 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1385894719315116" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1385894719315116</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cej.2019.122117" target="_blank" >10.1016/j.cej.2019.122117</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Is removal of organics and suspended solids in horizontal sub-surface flow constructed wetlands sustainable for twenty and more years?

Popis výsledku v původním jazyce

Constructed wetlands with horizontal subsurface flow were the most common type of constructed wetlands used for municipal sewage during the 1980s and 1990s. Because of predominant anoxic and anaerobic conditions in the filtration beds,this CW type was primarily used for removal of organics and suspended solids. HF CWs were replaced with vertical and hybrid CWs, however many HF CWs are still in operation but very scarce information exists on a long term treatment performance. The present study evaluated treatment performance of 114 Czech HF CWs with special attention to 17 systems that have been in operation for at least 20 years. The study clearly revealed that if the HFCWs are properly loaded, their treatment performance is very steady with outflow concentrations of less than 15 mgl of BOD5 and TSS and less than 50 mgl COD. The results from systems that have been in operation for more than 20 years revealed that treatment efficiency actually increased over the years of operation with outflow concentrations lower as compared to initial phase of operation.

Název v anglickém jazyce

Is removal of organics and suspended solids in horizontal sub-surface flow constructed wetlands sustainable for twenty and more years?

Popis výsledku anglicky

Constructed wetlands with horizontal subsurface flow were the most common type of constructed wetlands used for municipal sewage during the 1980s and 1990s. Because of predominant anoxic and anaerobic conditions in the filtration beds,this CW type was primarily used for removal of organics and suspended solids. HF CWs were replaced with vertical and hybrid CWs, however many HF CWs are still in operation but very scarce information exists on a long term treatment performance. The present study evaluated treatment performance of 114 Czech HF CWs with special attention to 17 systems that have been in operation for at least 20 years. The study clearly revealed that if the HFCWs are properly loaded, their treatment performance is very steady with outflow concentrations of less than 15 mgl of BOD5 and TSS and less than 50 mgl COD. The results from systems that have been in operation for more than 20 years revealed that treatment efficiency actually increased over the years of operation with outflow concentrations lower as compared to initial phase of operation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10503 - Water resources

Projekt

<a href="/cs/project/7F14341" target="_blank" >7F14341: Assessing water quality improvement options concerning nutrient and pharmaceutical contaminants in rural watersheds</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

CHEMICAL ENGINEERING JOURNAL

ISSN

1385-8947

e-ISSN

1873-3212

Svazek periodika

2019

Číslo periodika v rámci svazku

378

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

1-9

Kód UT WoS článku

000450105700147

EID výsledku v databázi Scopus

2-s2.0-85068511529