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Wyszukujesz frazę "treatment wetland" wg kryterium: Temat


Tytuł:
Operational problems of constructed wetland for landfill leachate treatment: case study
Autorzy:
Obarska-Pempkowiak, H.
Gajewska, M.
Wojciechowska, E.
Powiązania:
https://bibliotekanauki.pl/articles/125011.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
treatment wetland
landfill leachate
clogging
Opis:
The present paper discusses the quality fluctuations of leachate from municipal landfill in Gdansk (Poland) over the last 5 years and the evaluation of a wetland system designed for treatment of the leachate. The research has been conducted during a 5-year period. The constructed wetland for leachate treatment was built in 2001; it consists of 2 horizontal subsurface flow reed beds, working in parallel. In the period 2005–2006 it underwent modernization due to unsatisfactory treatment results caused by bed clogging. After the modernization the treatment effectiveness is satisfactory. The effluent from bed I met Polish outflow standards, while in the effluent from bed II COD, total N and TSS exceeded the required concentrations. In spite of this, pretreatment of leachate (iron removal) should be quickly introduced to protect the system against the reoccurrence of clogging problems.
Źródło:
Journal of Ecological Engineering; 2013, 14, 3; 53-58
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sewage gardens – constructed wetlands for single family households
Autorzy:
Obarska-Pempkowiak, H.
Gajewska, M.
Wojciechowska, E.
Kołecka, K.
Powiązania:
https://bibliotekanauki.pl/articles/208217.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
przydomowa oczyszczalnia hydrofitowa
przydomowe oczyszczalnie
oczyszczanie hydrofitowe
roślinne oczyszczalnie ścieków
domy jednorodzinne
oczyszczanie ścieków
household sewage treatment wetland
household sewage
wetland treatment
treatment wetland (TWs)
wastewater treatment plant
single family
wastewater treatment
Opis:
During the last 30 years the increase of interest in low-cost decentralized and small wastewater treatment plants (WWTP) is observed in Europe. For this purpose, sand filters, stabilization ponds, mini reactors with activated sludge, trickling filters and treatment wetlands are used. Among the listed facilities, treatment wetlands (TWs) offer effective and reliable treatment efficiency, being at the same time low-cost and simple in operation. This is a sustainable treatment technology which does not generate secondary sewage sludge. In the paper, design concept and performance of nine TWs constructed in 2009 for single-family households in Kashubian Lake District is discussed. The treatment efficiency of three different TW configurations is compared. The findings of the study provide a basis for future design and implementation of TWs in agricultural areas.
Źródło:
Environment Protection Engineering; 2015, 41, 4; 71-82
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Operational problems of constructed wetland for landfill leachate treatment: case study
Problemy z eksploatacją systemów hydrofitowych dooczyszczania odcieków ze składowiska: studium przypadku
Autorzy:
Obarska-Pempkowiak, H.
Gajewska, M.
Wojciechowska, E.
Powiązania:
https://bibliotekanauki.pl/articles/401274.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
system hydrofitowy
odciek ze składowiska
zatykanie się
treatment wetland
landfill leachate
clogging
Opis:
In the paper the quality fluctuations of leachate from municipal landfill in Gdansk (Poland) over the last 5 years and evaluation of a wetland system designed for treatment of the leachate are discussed. The research has been conducted during the 5 years period. The constructed wetland for leachate treatment, consisting of 2 horizontal subsurface flow reed beds, working in parallel was built in 2001. In the period 2005-06 it underwent modernization due to unsatisfactory treatment results caused by clogging of the beds. The treatment effectiveness after modernization is satisfactory. The effluent from bed I met Polish outflow standards, while in the effluent from bed II COD, total N and TSS exceeded the required concentrations. In spite of this, pre-treatment of leachate (iron removal) should be quickly introduced to protect the system against the repetition of clogging problems.
Opisane w artykule badania prowadzono w okresie pięciu lat. System hydrofitowy zbudowany w 2001 roku do oczyszczania odcieków ze składowiska składa się z dwóch poziomych złóż o przepływie podpowierzchniowym, w układzie równoległym. W 2005-2006 roku wykonano modernizację układu ze względu na problem z zatykaniem się złóż. Efektywność oczyszczania po modernizacji jest zadowalająca, odpływ ze złoża I spełnia polskie normy, natomiast w przypadku złoża II zaobserwowano przekroczenia ChZT i zawiesiny ogólnej. W celu uniknięcia zatykania się złóż należy zastosować wstępne oczyszczanie odcieków.
Źródło:
Inżynieria Ekologiczna; 2011, 25; 202-210
2081-139X
2392-0629
Pojawia się w:
Inżynieria Ekologiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ okresu eksploatacji na efektywność pracy oczyszczalni hydrofitowej w Małyszynie
Period of operation impact on the effectiveness of work constructed wetland in Małyszyn
Autorzy:
Jakubaszek, A.
Płuciennik-Koropczuk, E.
Powiązania:
https://bibliotekanauki.pl/articles/372578.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
oczyszczanie ścieków
oczyszczalnie hydrofiltrowe
poziomy przepływ ścieków
efektywność usuwania zanieczyszczeń
wastewater treatment
treatment wetland
SS-HF subsurface horizontal flow
Opis:
W artykule przedstawiono efektywność usuwania zanieczyszczeń organicznych oraz związków biogennych ze ścieków w oczyszczalni hydrofitowej w Małyszynie. Wyniki wieloletniego monitoringu pracy oczyszczalni wykazują, że średnia efektywność usuwania zanieczyszczeń organicznych ze ścieków wynosiła 72% Natomiast azot ogólny i fosfor ogólny usuwane były ze ścieków w 22,5 i 13,3%. Wykazano również okresowe odładowanie złoża z wcześniej zdeponowanego fosforu.
This paper presents the pollutant removal efficiency of organic and biogenic compounds from wastewater in constructed wetland in Małyszyn. The results of long-term monitoring of wastewater treatment operation show that the efficiency of removal of organic pollutants from wastewater was 72%. However, total nitrogen and total phosphorus removed from wastewater were on average 22.5 and 13.3%. It was also demonstrated periodically landward of previously deposited phosphorous.
Źródło:
Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski; 2012, 148 (28); 97-106
1895-7323
Pojawia się w:
Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cod Fractions Changes During Sewage Treatment With Constructed Wetland
Autorzy:
Smyk, J.
Ignatowicz, K.
Powiązania:
https://bibliotekanauki.pl/articles/123349.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
COD
sewage treatment
wetland
Opis:
The purpose of the presented research work was to find out COD fractions in raw wastewater and during treatment with constructed wetland (CW) system. The tests were performed in CW system with average flow of about 4 m3/day. In raw wastewater the highest concentration of fraction in organic suspended solid easy biodegradable (XS – 250 mg O2/l) was observed. The same situation was with dissolved organic easy biodegradable matter (SS – 250 mg O2/l). Lower quantity of non-biodegradable fractions dissolved and in suspended solids were observed (SI – 27 mg O2/l, XI – 83.33 mg O2/l). More than 80% of total COD was as biodegradable fractions (SS + X). After treatment with CW system the highest concentration was observed for dissolved non biodegradable fraction (SI – 27 mg O2/l). Lower concentration was for biodegradable fraction in suspended solid (XS – 3.33 mg O2/l). More than 89% of total COD was in biological non-biodegradable fraction (SI + XI).
Źródło:
Journal of Ecological Engineering; 2015, 16, 3; 43-48
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Textile Wastewater Treated by Constructed Wetlands – A Critical Review
Autorzy:
Hussein, Amjad
Powiązania:
https://bibliotekanauki.pl/articles/24201781.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
azo dye
constructed wetland
textile wastewater
treatment
Opis:
Textile industries are among the most environmentally unsustainable businesses, releasing large amounts of effluent that endangers ecosystem health. Constructed wetlands (CWs) are low-cost eco-technical treatments for industrial wastewater control. The CWs are self-contained remediation systems that do not require external energy and have basic mechanisms for pollutant removal, such as biological, chemical, and physical processes. For more than sixty years, constructed wetlands have been utilized to clean wastewater. Most applications have been developed to treat municipal or household wastewater, although CWs are now successfully used to treat a wide range of wastewater types. Constructed wetlands were also employed to treat textile industry effluents in the 1990s. The survey indicated that textile manufacturing wastewaters were treated using subsurface and surface-flow wetlands. Both horizontal and vertical flow systems have been designed within subsurface flow-created wetlands. In addition, many hybrid-built wetlands have recently been documented in the literature for textile industrial wastewater treatment. According to the survey, textile industrial wastewater is treated in constructed wetlands on all continents, and this research includes the data from 65 constructed wetlands in 21 nations worldwide. This paper examined the latest improvements and discoveries in CWs and the many types of CWs used for textile wastewater treatment. The paper also demonstrated state-of-the-art integrated technologies for improving the performance and sustainability of CWs, such as CW-MFC systems.
Źródło:
Journal of Ecological Engineering; 2023, 24, 5; 256--275
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kinetics of Pollutants Removal in Wetlands Influenced by Retention Time and Number of Plants Using Cyperus alternifolius
Autorzy:
Rahman, Danar Arifka
Priambodo, Eka Wahyudi
Caturputranto, Trisnadi Widyaleksono
Wahyudianto, Febri Eko
Powiązania:
https://bibliotekanauki.pl/articles/2202280.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
constructed wetland
Cyperus alternifolius
kinetics
wastewater treatment
Opis:
Constructed wetland is considered an alternative for domestic wastewater treatment in cities. This study serves to evaluate the removal capacity and kinetics of TSS, COD, phosphate, and surfactant in domestic wastewater with several plants of Cyperus alternifolius, through the use of the constructed wetlands treatment. The overall objective of the study was to determine the ability of Cyperus alternifolius to remove water pollutants in domestic wastewater in several plants. The domestic wastewater was contacted in a batch system. The results indicated that CWs had a good performance on COD, phosphate, and surfactant with removal efficiencies of more than 80%, with a retention time of 8 days and 5 plants. However, the removal of suspended solids was found limited, as shown that the TSS removal efficiency was under 40%. The first-order equation of kinetics described the degradation of pollutants. The q1/2 values, which were defined as the average removal loading prior to the half of the pollutant concentration being removed and represented the removal capacity without limitation of pollutants concentration, were moderately increased with an addition to the number of plants.
Źródło:
Journal of Ecological Engineering; 2022, 23, 12; 37--43
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza statystyczna zawartości azotu ogólnego w złożu oczyszczalni hydrofitowej w Małyszynie
Statistical analysis of total nitrogen in the soil of constructed wetland in Małyszyn
Autorzy:
Jakubaszek, A.
Wojciech, M.
Powiązania:
https://bibliotekanauki.pl/articles/372002.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
oczyszczanie ścieków
oczyszczalnia hydrofitowa
wastewater treatment
constructed wetland
Opis:
Usuwanie związków azotu w oczyszczalniach hydrofitowych uzależnione jest od wielu czynników fizyczno-chemicznych i biochemicznych oraz warunków środowiskowych. W artykule przedstawiono opracowanie statystyczne zawartości azotu ogólnego w złożu hydrofitowym oczyszczalni. Wyniki badań materiału filtracyjnego wykazały, że największą zawartością azotu charakteryzowała się powierzchniowa warstwa gruntu do 20 cm głębokości. Kumulacja azotu ogólnego malała wraz z penetracją w głąb złoża oraz w kierunku odpływu ścieków z oczyszczalni.
Removal of nitrogen from constructed wetlands depends on many physic-chemical and biochemical conditions, deposit and environmental factors. The paper contains the results of statistical analysis the accumulation of total nitrogen in the soil. The results of the research have indicated that the highest content of nitrogen was observed in the surface layer of the soil at a depth of up to 20 cm. The content of total nitrogen has dropped with the penetration depth and towards the sewage flow from the constructed wetland.
Źródło:
Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski; 2011, 142 (22); 75-85
1895-7323
Pojawia się w:
Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improving Wastewater Reclamation Using Constructed Wetlands by Artificial Plastic Biofilm Carriers
Autorzy:
Zaboon, Baneen Hussein
Al-Abbawy, Dunya A. H.
Yaseen, Dina A.
Powiązania:
https://bibliotekanauki.pl/articles/2202266.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
wastewater treatment
free-water surface
Lemna minor
constructed wetland
Opis:
Increasing the demand for potable water, followed by the high quantity of discharged effluents linked with the water scarcity problems has necessitated giving more attention to improving wastewater treatment processes and operations. The constructed wetland has proven to be an excellent green sustainable technique for purification. This study aimed to examine the performance of four experimental free water surface constructed wetlands (FWSCWs) for the depuration of sewage effluents as a secondary treatment stage during winter season conditions. The objectives were to assess the raw and treated wastewater concentrations, evaluate the removal efficiency of chemical oxygen demand (COD), biological oxygen demand (BOD), nutrients, and total suspended solids (TSS) of each treatment line, and compare the impact of plastic rings (biofilm carriers) and Lemna minor L. with the presence of gravel bed on the treatment efficiency and bacterial growth, as well as assess the plant’s adaption and growth. The results showed that all treatment systems improved the water characteristics, and adding biofilm carriers enhanced the efficiency of water purification, especially BOD reduction. The combination of the plants, biofilm carriers, and gravel in the wetland filter significantly enhanced (ρ < 0.05) the treatment efficiency in terms of TSS, COD, BOD, Ammonia (NH3), Nitrates (NO3), and Orthophosphate (PO4) compared to the control treatment system (gravel bed). Plant growth was restricted in the presence of carriers in the system. Further study for examining the system performance under summer conditions, which may improve the nutrient reduction rates by biofilm carriers, is underway.
Źródło:
Journal of Ecological Engineering; 2022, 23, 11; 241--253
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computational Fluid Dynamics Modeling of Residence Time Distribution in a Field-Scale Horizontal Subsurface Flow Constructed Wetland with Palm Kernel Shell as Substrate
Autorzy:
Okoye, Nelson Mbanefo
Madubuike, Chimaobi Nnaemeka
Nwuba, Ifeanyi Uba
Orakwe, Louis Chukwuemeka
Ugwuishiwu, O. Boniface
Powiązania:
https://bibliotekanauki.pl/articles/1163287.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
COMSOL
Computational Fluid Dynamics
Constructed Wetland
Simulation Modelling
Wastewater Treatment
Opis:
The hydraulic performance of constructed wetlands is often compromised by hydraulic problems. Therefore, the development of an appropriate simulation model to reliably predict how various modifications of bed design and configurations might affect performance will facilitate the design of efficient systems. The aim of this research work is to determine distribution of residence time in a field-scale horizontal subsurface flow constructed wetland with Palm Kernel Shell as substrate. The governing equations of flow in porous media and transport of diluted species were solved using COMSOL Multiphysics 5.3a. The result was validated using experimental data and the model result showed good agreement with a correlation coefficient of 0.99. Alternative wetland designs were assessed for the same flow conditions. The results revealed that a two cell wetland improved short-circuiting flow paths.
Źródło:
World Scientific News; 2018, 109; 60-70
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł

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