Temat: Constructed Wetland - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Influence of bio-preparation on wastewater purification process in constructed wetlands
Autorzy:: Puchlik, M.
Ignatowicz, K.
Dąbrowski, W.
Powiązania:: https://bibliotekanauki.pl/articles/124937.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: constructed wetland
biopreparation
wastewater
Opis:: Technological system of analyzed wastewater treatment plant is in part a biological bed of soil-reed in parallel arrangement. Unusual application is the application of two independent purification lines where in the second line, a bio-preparation is additionally dosed. The constructed wetland provides high removal of organic compounds expressed as BOD₅ and COD, as well as reducing the concentration of ammonia nitrogen and phosphates. This indicates a high performance of such a sewage treatment plant.
Źródło:: Journal of Ecological Engineering; 2015, 16, 1; 159-163
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Removal of Pesticides from Wastewater by the Use of Constructed Wetlands
Autorzy:: Ignatowicz, Katarzyna
Puchlik, Monika
Łozowicki, Jakub
Powiązania:: https://bibliotekanauki.pl/articles/125196.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: constructed wetland
organic matter
pesticides
Opis:: The purpose of the work was to determine the efficiency of domestic wastewater treatment contaminated with a mixture of pesticides at varying deposit load. The efficiency of purification in the case of eight pesticides equaled 99.8%, and the removal effect of azoxystrobin reached 93%, while that of thiachloprid – 96%. The constructed wetland ensured high removal of organic matter expressed as BOD and COD, as well as reduction in the concentration of nitrogen and phosphorus compounds. Studies showed a clear impact of the deposit load on the effectiveness of pesticide removal, BOD and COD parameters, total phosphorus, and total nitrogen.
Źródło:: Journal of Ecological Engineering; 2020, 21, 1; 219-223
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Selection of Mesocosm to Remove Nutrients with Constructed Wetlands
Autorzy:: Timotewos, M. T.
Kassa, K.
Reddythota, D.
Powiązania:: https://bibliotekanauki.pl/articles/124119.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: constructed wetland
horizontal subsurface flow wetland
Typha
nutrients
Opis:: Oxidizing bacteria in the roots of the plant has a unique ability of absorbing pollutants in the wastewater, thus they considered as a useful method for wastewater treatment. Using three plants, namely Typha, Phragmites australis, and Scirpus, we performed a series of mesocosms experiments in Arba Minch, Ethiopia for the removal of nutrients by constructed wetlands. We observed that the nutrients reached the removal efficiencies of 99.1% for Typha plant, has better removal efficiency than Phragmites australis and Scirpus. The results explore the oxidizing bacteria activity in different plants and that led to enhance the removal efficiency of pollutants in wastewater.
Źródło:: Journal of Ecological Engineering; 2017, 18, 4; 42-51
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

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

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Skocz do pozycji: 5.

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

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Skocz do pozycji: 6.

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

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Skocz do pozycji: 7.

Tytuł:: Zanieczyszczenia mikrobiologiczne powietrza atmosferycznego na terenie i w otoczeniu oczyszczalni ścieków z systemem stawów napowietrznych
Microbiological contamination of atmospheric air in the constructed wetland (with aerated and stabilization ponds) and in its surrounding
Autorzy:: Gotkowska-Płachta, A.
Filipkowska, Z.
Korzeniewska, E.
Janczukowicz, W.
Powiązania:: https://bibliotekanauki.pl/articles/338375.pdf
Data publikacji:: 2008
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: bakterie
oczyszczalnie hydrofitowe
powietrze
air
bacteria
constructed wetland
Opis:: Badania powietrza atmosferycznego prowadzono na terenie i w otoczeniu hydrofitowej oczyszczalni ścieków bytowo-gospodarczych w Biesalu o przepustowości 170 m³ ·d-¹, z pięciostopniowym stawem napowietrzanym, stawem stabilizacyjnym oraz filtrem gruntowo-roślinnym o przepływie poziomym (FGR). Badano liczebność bakterii heterotroficznych psychrofilnych, psychrotrofowych i mezofilnych oraz wybranych grup fizjologicznych drobnoustrojów: z rodziny Enterobacteriaceae, rodzaju Staphylococcus i Enterococcus, gatunku Pseudomonas fluorescens, bakterii hemolizujących oraz promieniowców. Powietrze do badań pobierano w sezonach letnim, jesiennym, zimowym i wiosennym, równolegle dwoma metodami (sedymentacyjną i zderzeniową) na 6 stanowiskach usytuowanych na terenie oczyszczalni oraz na 4 usytuowanych w jej otoczeniu. Tło wyznaczano w zależności od kierunku wiatru po stronie nawietrznej w stosunku do położenia oczyszczalni. Równolegle z badaniami mikrobiologicznymi prowadzono pomiary temperatury i wilgotności powietrza oraz prędkości wiatru. Biorąc pod uwagę poszczególne grupy badanych drobnoustrojów, stwierdzono statystycznie istotne różnice ich liczebności w powietrzu pobieranym w różnych sezonach badawczych oraz różnymi metodami. Największą średnią ich liczebność stwierdzano zazwyczaj w próbkach powietrza pobieranego metodą sedymentacyjną oraz w okresie wiosennym (z wyjątkiem bakterii z rodziny Enterobacteriaceae, których maksymalną liczebność odnotowano latem i jesienią), najmniejszą natomiast zimą. Nie stwierdzono istotnych statystycznie różnic w liczebności badanych grup drobnoustrojów w powietrzu pobieranym na poszczególnych stanowiskach badawczych, jednak większą ich liczebność stwierdzano w powietrzu pobieranym w pobliżu osadnika pionowego, komory magazynowania osadu oraz sporadycznie w odległości 25 m od ogrodzenia obiektu. Uwzględniając kryteria oceny stopnia bakteriologicznego zanieczyszczenia powietrza atmosferycznego podane w normach PN-89-Z-04111/02 i prPN-Z-04111-2: 2004, badane powietrze na terenie i w otoczeniu oczyszczalni ścieków przeważnie było niezanieczyszczone lub średnio zanieczyszczone.
Atmospheric air was analysed on the premises and in the surrounding of a constructed wetland in Biesal, treating 170 m³ ·d-¹ of domestic wastewater, which operates in a system of five-stage aerated pond, stabilization pond and a reed bed with horizontal flow. The following microorganisms were assayed: heterotrophic psychrophilic, psychrotrophic and mesophilic bacteria and some physiological groups of microorganisms of the family Enterobacteriaceae, genera Staphylococcus and Enterococcus, species Pseudomonas fluorescens, haemolysing bacteria and actinomycetes. Air for the assays was sampled in summer, autumn, winter and spring, with two parallel methods (sedimentation and impact) at six sites located on the premises of the constructed wetland and at four other sites in its surrounding. The background was selected, depending on wind direction, on the windward side of the constructed wetland. The microbiological tests were accompanied by measurements of the air temperature and humidity and wind velocity. Statistical analyses of the results showed significant differences in the number of analysed groups of microorganisms in the air sampled with different methods and in different seasons. The highest mean number of microorganisms was typically determined in air samples collected with the sedimentation method and in the spring season (except for bacteria of the family Enterobacteriaceae, which were most numerous in summer and autumn) and lowest results were obtained in winter. No statistically significant differences were found between the numbers of analysed microorganisms in the air sampled at particular sampling sites, although the microorganisms occurred in higher numbers in the air collected near the vertical sedimentation tank, sludge storage tank and, sporadically, 25 m from the fence of the wastewater treatment plant. According to the norms set for bacteriological contamination of atmospheric air [PN-89-Z-04111/02, prPN-Z-04111-2], the air sampled on the premises and in the surrounding of the constructed wetland was evaluated as being unpolluted or moderately polluted.
Źródło:: Woda-Środowisko-Obszary Wiejskie; 2008, 8, 1; 83-98
1642-8145
Pojawia się w:: Woda-Środowisko-Obszary Wiejskie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Application of Constructed Wetlands for Treatment of Wastewater from Fruit and Vegetable Industry
Autorzy:: Puchlik, M.
Powiązania:: https://bibliotekanauki.pl/articles/123556.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: constructed wetland
fruit and vegetable industry
organic matter
Opis:: About 2000 plants are involved in fruit and vegetable processing in Poland, they are mostly located in non-urbanized areas and without any access to sewerage and sewage treatment facilities. In 2014, they produced more than 10 hm³ of wastewater requiring treatment, which was discharged directly into surface waters or into the ground. The aim of the study was to evaluate the efficiency of the constructed wetland for treating the sewage from fruit and vegetable industry. The analyzed constructed wetland with vertical flow reveled a reduction in the value of BOD₅ to 68.2%, and COD_Cr to 79.3%. The model was characterized by 60.2% efficiency of total phosphorus removal.
Źródło:: Journal of Ecological Engineering; 2016, 17, 1; 131-135
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Performance of Reactive Nitrogen in Leachate Treatment in Constructed Wetlands
Autorzy:: Arliyani, Isni
Tangahu, Bieby Voijant
Mangkoedihardjo, Sarwoko
Powiązania:: https://bibliotekanauki.pl/articles/1838409.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: reactive nitrogen
performance
effects
landfill leachate
constructed wetland
Opis:: Reactive Nitrogen (Nr) is produced from natural and human activity, the use of fuel, the activities of industry, and agriculture. The Nr from agriculture is used to produce food crops, but excess Nr has an impact on the surrounding land. Landfills also generate Nr from the decomposition of waste which then releases the leachate containing Nr. This study aimed to determine the value of Nr generated by landfills, the effect of Nr on the environment, and the performance of Nr when used in Constructed Wetlands (CW). Review papers were collected from several studies and publications. Nr commonly found in leachate landfills include: NH4, NH3, NO2, and NO3. The Nr present in landfill leachate at CW can be used for proper plant development and growth, which significantly increases and enhances its quality and yield by playing an important role in the biochemical and physiological functions of plants. In addition, the content of hazardous substances in landfill leachate can also be processed using CW. This review paper discusses the effects of Nr from human activities ending up in landfills. The landfill leachate with Nr content can be used in CW for plant growth.
Źródło:: Journal of Ecological Engineering; 2021, 22, 5; 205-213
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: The Performance of Hybrid Constructed Wetland System for Treating the Batik Wastewater
Autorzy:: Rahmadyanti, Erina
Audina, Oktavia
Powiązania:: https://bibliotekanauki.pl/articles/123253.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: batik industry
wastewater
hybrid constructed wetland
Canna indica
Opis:: The batik industry is one of the Indonesian economic drivers. However, most of the batik industries discharge their wastewater without any prior treatment, thus endangering the environment. This research aims to investigate the ability of hybrid constructed wetlands (CWs) system using Canna indica in the batik wastewater treatment. The parameters studied were chemical oxygen demand (COD), total suspended solid (TSS), and oil and grease (FOG) with 3, 5, and 7 days of hydraulic retention time (HRT). The results indicate that the hybrid constructed wetland system using Canna indica optimally gains the COD and FOG removal efficiency on day 3 at 89.61% and 89.53%, while the TSS removal efficiency on day 5 at 98.74%. Despite the high removal efficiency, the effluent parameters remain below the standards for direct discharge into waterbodies. Therefore, further research is needed to investigate the appropriate pre-/advanced treatment to be combined with the hybrid constructed wetland in batik wastewater treatment.
Źródło:: Journal of Ecological Engineering; 2020, 21, 3; 94-103
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Application of Constructed Wetland for Treating Runoff from the Dairy Cattle Farm Yard
Autorzy:: Rossa, Ludmiła
Urbaniak, Marek
Majewska, Zuzanna
Powiązania:: https://bibliotekanauki.pl/articles/124464.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: runoff waters
cattle farm
water quality
constructed wetland
Opis:: Constructed wetlands (CWs) are becoming a popular solution for the treatment of rainwater discharged from hardened surfaces, because their construction and maintenance does not require large expenditures. The research on the effectiveness of treating runoff from the dairy farm yard was carried out using constructed wetland. The studied wetland was built in the form of two connected reservoirs with an area of 30 m². In the first deep reservoir, sedimentation of suspended matter occurred, while in the second shallow reservoir, six species of aquatic plants were planted in order to assimilate nitrogen and phosphorus compounds. In the years 2014–2018, the water samples from the inflow and outflow of the constructed wetland were collected. The pH and electrical conductivity values, as well as nitrate nitrogen, ammonium nitrogen, phosphates phosphorus and chlorides concentrations were determined with electrochemical and photometric methods. The obtained results were statistically analyzed using the Statistica v. 7 software. In the majority of the runoff samples from the farmyard, abnormal concentration of ammonium nitrogen (90% of samples) and phosphate phosphorus (100% of samples) occurred in relation to the requirements for surface waters. The values of ammonium nitrogen concentration exceeded the acceptable norms for domestic sewage discharged into waters in 31% of samples and in the case of phosphate phosphorus – in 67% of samples. The concentration of chlorides exceeded the limit values for surface water in 36% of samples. The average concentration of nitrate nitrogen did not exceed these standards. There was a high correlation between the concentration of ammonium nitrogen and the concentration of phosphate phosphorus and chlorides. The efficiency of runoff treatment from the dairy cattle farm yard was very high in the initial period of research, reaching 85.4% for ammonium nitrogen and 68.3% for phosphate phosphorus, but showed a downward trend over time for the entire period.
Źródło:: Journal of Ecological Engineering; 2019, 20, 10; 225-232
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Bakteriologiczne zanieczyszczenie powietrza na terenie i w otoczeniu oczyszczalni ścieków z systemem filtrów gruntowo-roślinnych
Bacteriological pollution of atmospheric air in the constructed wetland (with reed bed system) area and in the surroundings
Autorzy:: Korzeniewska, E.
Filipkowska, Z.
Gotkowska-Płachta, A.
Janczukowicz, W.
Powiązania:: https://bibliotekanauki.pl/articles/338337.pdf
Data publikacji:: 2008
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: bakterie
oczyszczalnie hydrofitowe
powietrze
air pollution
bacteria
constructed wetland
Opis:: Badania powietrza atmosferycznego przeprowadzono na terenie i w otoczeniu oczyszczalni hydrofitowej w Łęgutach, z filtrami gruntowo-roślinnymi o pionowym i poziomym podpowierzchniowym przepływie ścieków bytowo-gospodarczych, o przepustowości 60 m³ d-¹. Badano liczebność bakterii heterotroficznych psychrofilnych, psychrotrofowych i mezofilnych oraz wybranych grup fizjologicznych drobnoustrojów: z rodziny Enterobacteriaceae, rodzaju Staphylococcus i Enterococcus, gatunku Pseudomonas fluorescens, bakterii hemolizujących oraz promieniowców. Powietrze do badań pobierano w sezonach letnim, jesiennym, zimowym i wiosennym, równolegle metodą sedymentacyjną i zderzeniową na 7 stanowiskach usytuowanych na terenie oczyszczalni (przy: dopływie ścieków, osadniku Imhoffa, I i II filtrze gruntowo-roślinnym - FGR - z przepływem pionowym, osadniku pionowym, FGR z przepływem poziomym, poletku trzcinowym) oraz na 4 stanowiskach usytuowanych w jej otoczeniu. Tło wyznaczano w zależności od kierunku wiatru po stronie nawietrznej w stosunku do położenia oczyszczalni. Ponadto prowadzono pomiary temperatury i wilgotności powietrza oraz prędkości wiatru na poszczególnych stanowiskach badawczych. Stwierdzono statystycznie istotne różnice liczebności poszczególnych grup badanych drobnoustrojów w powietrzu pobieranym różnymi metodami oraz w różnych porach roku. Największą średnią ich liczebność stwierdzano zazwyczaj w próbkach powietrza pobieranego metodą sedymentacyjną, a jeśli rozpatruje się zmienność w ciągu roku - latem, najmniejszą zaś zimą. Nie stwierdzono istotnych statystycznie różnic w liczebności badanych grup drobnoustrojów w powietrzu pobieranym na poszczególnych stanowiskach badawczych. Jednakże większą ich liczebność stwierdzano w powietrzu pobieranym na stanowiskach usytuowanych na terenie oczyszczalni ścieków, szczególnie przy dopływie ścieków, osadniku Imhoffa oraz przy pionowych filtrach gruntowo-roślinnych. Uwzględniając kryteria oceny stopnia zanieczyszczenia powietrza atmosferycznego podane w Polskich Normach, poza nielicznymi wyjątkami, powietrze pobierane zarówno na terenie, jak i w otoczeniu oczyszczalni można zaklasyfikować jako mało zanieczyszczone. Nie stwierdzono podwyższonej emisji badanych grup drobnoustrojów, w tym również pochodzenia kałowego, poza obszar terenu oczyszczalni.
The study of atmospheric air was carried out within and in the surrounding of a constructed wetland in Łęguty, treating 60 m³ d-¹ of domestic wastewater, which operates in vertical and horizontal reed bed system with subsurface flow. Counts of heterotrophic psychrophilic, psychrotrophic and mesophilic bacteria as well as some physiological groups of microorganisms which belong to Enterobacteriaceae family, Staphylococcus and Enterococcus genera, Pseudomonas fluorescens species, hemolysing bacteria and actinomycetes were analysed. Air samples were collected in summer, autumn, winter and spring seasons simultaneously by the sedimentation and impact methods at 7 sites located in the area of the wastewater treatment plant (sewage inflow, Imhoff tank, I and II vertical flow reed bed, vertical sedimentation tank, horizontal flow reed bed and sludge drying reed bed) and at 4 sites situated in its surroundings. The background was selected depending on wind direction, always on the windward side of the wastewater treatment plant. In addition, temperature, air humidity, wind speed and direction were observed at each sampling site. Statistical analyses of the results showed significant differences in counts of the analysed groups of microorganisms in the air sampled with different methods and in different seasons. The highest mean numbers of microorganisms were typically found in air samples collected by the sedimentation method, especially in summer (with the exception of actinomycetes, which were most numerous in spring), whereas the lowest counts were found in winter. No statistically significant differences were found between counts of the analysed groups of microorganisms in the air sampled at different sites. However, higher counts were usually found in the air sampled at the sites on the premises of the wastewater treatment plant, especially near sewage inflow, Imhoff tank and vertical flow reed bed. According to the Polish Standards for atmospheric air pollution assessment, the air sampled at the plant and in its surroundings, with very few exceptions, was classified as only slightly polluted. In conclusion, no increased emission of the analysed groups of microorganisms, including faecal bacteria, was observed outside the wastewater treatment plant.
Źródło:: Woda-Środowisko-Obszary Wiejskie; 2008, 8, 1; 161-173
1642-8145
Pojawia się w:: Woda-Środowisko-Obszary Wiejskie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

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

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Skocz do pozycji: 14.

Tytuł:: Recent Progress of Phytoremediation-Based Technologies for Industrial Wastewater Treatment
Autorzy:: Yuliasni, Rustiana
Kurniawan, Setyo Budi
Marlena, Bekti
Hidayat, Mohamad Rusdi
Kadier, Abudukeremu
Ma, Peng Cheng
Imron, Muhammad Fauzul
Powiązania:: https://bibliotekanauki.pl/articles/2202323.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: aquatic plant
constructed wetland
environmental pollution
industrial wastewater
phytoremediation
Opis:: Phytoremediation is considered of a cost effective and environmentally friendly technology and has been used successfully for the remediation of soils and water contaminated with various pollutants. Specifically for full scale application to treat industrial wastewater, phytoremediation is used as sole technology for different types of wetlands. However, phytoremediation of polluted water in wetland type reactor has been mostly studied as black box. The method to measure the performance is only based on pollutant removal efficiency and there is very limited information available about of the pollutant removal mechanisms and process dynamics in these systems. Thus, the aim of this chapter was to briefly review basic processes of phytoremediation, its mechanisms and parameters, and its interaction between rhizo-remediation and microbe-plant. In addition, this chapter also elaborated phytoremediation challenges and strategies for full-scale application, its techniques to remove both organic and inorganic contaminants by aquatic plants in water, and some examples of applications in industries.
Źródło:: Journal of Ecological Engineering; 2023, 24, 2; 208--220
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Optimization of Acetaminophen and Methylparaben Removal within Subsurface Batch Constructed Wetland Systems
Autorzy:: Mutar, Zahraa Hasan
Mohammed, Ahmed A.
Al-Baldawi, Israa Abdulwahab
Powiązania:: https://bibliotekanauki.pl/articles/2025734.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: phytoremediation
ornamental plant
constructed wetland
PPCPs
central composite design
Opis:: The response surface methodology accompanied by Central Composite Design (CCD) was employed in this study to optimize the Alternanthera spp-based phytoremediation process for the individual removal of acetaminophen and methylparaben. Two operational variables, including concentration (A) (20, 60,100 mg/L) and sampling time (B) (7, 14, 21, and 35 days) were involved in the study for removal efficiency (Y) as response. CCD had required a total of 18 experiments for each compound. Analysis of variance (ANOVA) was conducted to verify the adequacy of the proposed mathematical models and revealed good agreement with the experimental data. The observed R2 values (0.9732 and 0.9870), adjusted R2 (0.9620 and 0.9816) and predicted R2 (0.9383 and 0.9721) for AC and MP, respectively, indicated that the developed models were significant at the 95% probability level. Concentration factor was found to be insignificant in the mathematical models; in contrast, sampling time was found to be of a crucial role. The removal of AC and MP were 89.23% and 64.48% under optimum conditions of A = 100 mg/L and B = 35 days respectively. The validation test confirmed the predicted results obtained by Central Composite Design, as the removals achieved under optimum conditions were 91.04% and 59.17% for AC and MP, respectively, which were in good agreement with the results proposed by the theoretical design.
Źródło:: Journal of Ecological Engineering; 2022, 23, 1; 228-239
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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