Development of constructed treatment wetlands in Czech Republic for five years term
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F16%3APU119599" target="_blank" >RIV/00216305:26110/16:PU119599 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.5593/SGEM2016/B52/S20.029" target="_blank" >http://dx.doi.org/10.5593/SGEM2016/B52/S20.029</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5593/SGEM2016/B52/S20.029" target="_blank" >10.5593/SGEM2016/B52/S20.029</a>
Alternative languages
Result language
angličtina
Original language name
Development of constructed treatment wetlands in Czech Republic for five years term
Original language description
Constructed wetlands (CWs) are in Czech Republic considered an alternative treatment technologies to activation treatment process. CWs are based on natural and slow wastewater treatment (without electricity). Horizontally flow CWs are confronted in many cases with problems almost the whole Czech Republic. As well as, they are often accompanied by inadequate cleaning efficiency (low ammonia removal). At present, about 400 CWs are in operation in Czech Republic. Majority of them are designed with horizontal sub-surface flow, while vertical flow constructed wetland are still are operated in the semi-experimental stage. However the vertical flow CWs have shown very good treatment effect and they can become the better solution into practice. Research work in the last five year solved the most common problems in constructed treatment wetlands. Our results are new approaches and solutions of configuration. The treatment efficiency is comparable with other technological devices for wastewater treatment. The outlet concentration obtained in the constructed wetland for 230 PE in the Czech Republic achieves COD <20 mg l-1, BOD < 7 mg l-1, TSS < 6 mg l-1 N-NH4+ < 7 mg l-1 (ammonia nitrogen is slowly improved). These results are significantly lower than the legislative limits for < 500 PE: COD < 150 mg l-1, BOD < 40 mg l-1, SS < 50 mg l-1 (ammonium nitrogen is not required). New results from research in the field of septic tanks also show significantly higher efficiency in comparison with slotted sedimentation tanks: COD = 78%, BOD = 75%, SS = 94%. In the Czech Republic is newly used numerical simulation in the research works connected with constructed wetland. The numerical simulation is provided by using software HYDRUS CW2D. We use numerical models of the CWs that were calibrated and allow to get information about the output concentrations of wastewater emission, such as ammonia nitrogen (N-NH4+), chemical oxygen demand (COD) and phosphorus (Ptot). The differences between me
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10501 - Hydrology
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
SGEM Conference Proceedingsc
ISBN
978-619-7105-66-7
ISSN
1314-2704
e-ISSN
—
Number of pages
8
Pages from-to
225-232
Publisher name
STEF92 Technology Ltd.
Place of publication
51 Alexander Malinov Blvd., 1712, Sofia, Bulgari
Event location
Albena
Event date
Jun 30, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000391519600029