Wetland technology for the treatment of HCH-contaminated water – case study at Hajek site

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24310%2F24%3A00012321" target="_blank" >RIV/46747885:24310/24:00012321 - isvavai.cz</a>

Alternative codes found

RIV/46747885:24510/24:00012321 RIV/46747885:24620/24:00012321

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0048969724028079" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0048969724028079</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.scitotenv.2024.172660" target="_blank" >10.1016/j.scitotenv.2024.172660</a>

Result language

angličtina

Original language name

Wetland technology for the treatment of HCH-contaminated water – case study at Hajek site

Original language description

Hexachlorocyclohexanes (HCH) isomers and their transformation products, such as chlorobenzenes (ClB), generate severe and persistent environmental problems at many sites worldwide. The Wetland technology employing oxidation-reduction, biosorption, biodegradation and phytoremediation methods can sufficiently treat HCH-contaminated water. The treatment process is inherently natural and requires no supplementary chemicals or energy. The prototype with a capacity of 3 L/s was installed at Hajek quarry spoil heap (CZ), to optimize the technology on a full scale. The system is fed by drainage water with an average concentration of HCH 129 µg/L, ClB 640 µg/L and chlorophenols (ClPh) of 16 µg/L. The system was tested in two years of operation, regularly monitored for HCH, ClB and ClPh, and maintained to improve its efficiency. The assessment was not only for environmental effects but also for socio and economic indicators. During the operation, the removal efficiency of HCH ranged from 53.5% to 96.9% (83.9% on average) depending on the flow rate. Removal efficiency was not uniform for individual HCH isomers but exhibited the trend: α = γ = δ %60 β = ε. The improved water quality was reflected in a biodiversity increase expressed by a number of phytobenthos (diatoms) species, a common biomarker of aquatic environment quality. The Wetland outranked the conventional WWTP in 10 out of the 15 general categories, and it is the most relevant scenario from the socio, environmental, and economic aspects.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

—

Continuities

R - Projekt Ramcoveho programu EK

Publication year

2024

Confidentiality

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

Name of the periodical

Science of The Total Environment

ISSN

0048-9697

e-ISSN

—

Volume of the periodical

930

Issue of the periodical within the volume

20 June 2024

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

—

UT code for WoS article

001237332300002

EID of the result in the Scopus database

2-s2.0-85191655044