Occurrence and removals of micropollutants in water environment

Kim, Moon-Kyung; Zoh, Kyung-Duk

doi:10.4491/eer.2016.115

Cited by 150 publications

(63 citation statements)

References 127 publications

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“…The appearance of organic micropollutants (OMPs) in surface water bodies on a global scale is an unwelcome reality [1,2]. Micropollutants may find their way into water bodies either from point or diffuse sources [3,4].…”

Section: Introductionmentioning

confidence: 99%

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Water Quality Monitoring in Northern India for an Evaluation of the Efficiency of Bank Filtration Sites

Glorian

Börnick

Sandhu

et al. 2018

Water

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The study presents results of five sampling campaigns at riverbank filtration sites at the Yamuna and Ganges Rivers in Uttarakhand, Uttar Pradesh and New Delhi 2015-2018. Samples were analyzed for organic micropollutants and general water quality parameters. In New Delhi and Uttar Pradesh, 17 micropollutants were detected frequently at relevant concentrations. Out of the detected micropollutants, 1H-benzotriazole, caffeine, cotinine, diclofenac, diuron, gabapentin and paracetamol were frequently detected with concentrations exceeding 1000 ng/L. Sites in Uttarakhand showed only infrequent occurrence of organic micropollutants. The mean concentration of micropollutants in the well water was lower compared to the river water. For all sites, removal rates for all micropollutants were calculated from the obtained data. Thereby, the capacity of riverbank filtration for the removal of organic micropollutants is highlighted, even for extremely polluted rivers such as the Yamuna.2 of 15 sporadically for some sites. Apart from several studies on general water quality parameters and heavy metals [8][9][10][11], only a few studies have shown the occurrence of OMPs. In this context, monitoring data for organochlorine pesticides have mainly been published [12][13][14][15][16][17][18]. Studies on other micropollutants like pharmaceuticals were carried out rarely [19]. The existing drinking water treatment technologies are not sufficient to remove all micropollutants from source water [15,20,21]. Consequently, and in light of the imminent risk from OMPs, the selection of source water has to be done very carefully, especially if surface water is directly abstracted for drinking water production. In case of polluted river water, RBF provides a pre-treatment for the removal of, among others, OMPs [10,22]. The removal rate depends on compound-specific properties (biodegradability and adsorption behavior) as well as on water quality, geochemical composition of aquifer material and hydraulic boundary conditions [23].The aim of the presented study is to expand the knowledge of organic and inorganic water quality at RBF sites over four years in the upper part of the Ganges and Yamuna Rivers. This includes the occurrence and removal of organic micropollutants as well as general inorganic water quality parameters. Furthermore, the efficiency of RBF at these sites to remove OMPs is characterized for the first time (other than Delhi [7]). For this purpose, different general parameter (e.g., main anions and cations, DOC) and selected typical anthropogenic organic micropollutants were analyzed. Materials and Methods Study SitesThe monitoring was done at nine selected sites in Uttarakhand, Uttar Pradesh and in New Delhi, India (Figure 1, Table 1). At every site one surface water sample and one well water sample was taken. The sites are located along the rivers Yamuna, Ganges and their tributaries. Depending on the distance from the riverbank, the production rate and duration of operation (h/day), the wells abstract a low (Agastmuni) to high (H...

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Section: Introductionmentioning

confidence: 99%

“…Micropollutants may find their way into water bodies either from point or diffuse sources [3,4]. Conventional wastewater treatment plants are unable to remove all micropollutants and discharge contaminated effluents directly into surface water bodies [1]. This discharge of contaminated effluents is called a point source.…”

Section: Introductionmentioning

confidence: 99%

Water Quality Monitoring in Northern India for an Evaluation of the Efficiency of Bank Filtration Sites

Glorian

Börnick

Sandhu

et al. 2018

Water

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“…For wastewater treatment after biological purification processes, there are advanced oxidation processes (ozonation, photocatalysis, et al) [Giannakis et al 2015; Kim and Zoh. 2016] and membrane filtration processes (microfiltration, ultrafiltration, nanofiltration and reverse osmosis) [Tang e al.…”

Section: Introductionmentioning

confidence: 99%

Elimination of Bisphenol A from Wastewater through Membrane Filtration Processes

et al. 2018

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New priorities for the environment have resulted in a reassessment of modern technology for treatment of urban wastewater. Urban wastewater treatment mainly involves the elimination or reduction of anthropogenic organic micropollutants in the aquatic environment. In this paper, the effectiveness of bisphenol A elimination from wastewater, after biological treatment, through a complex ultrafiltration/reverse osmosis purification process was evaluated. The effectiveness of the wastewater treatment process in the tested system was also evaluated with a number of other physical and chemical analyses for pH, turbidity, colour, absorbance, TOC, phenol index, conductivity and the concentration of selected heavy metals. Within this study, the change in the hydraulic performance of the membranes was also investigated. The effectiveness of the reduction of bisphenol A concentrations during the process of ultrafiltration was small, due to the significant difference between the size of the pores of the membrane and the size of eliminated micropollutants. In the process of reverse osmosis, the wastewater treatment system reported that the concentration of bisphenol A was reduced by 68%. In the tested treatment system, the ultrafiltration/reverse osmosis completely removed colour, lead and chromium. Other contaminants were eliminated by more than 31%. In both membrane processes, there was evidence that the membrane pores were blocked, but this occurred to a greater extent during the process of reverse osmosis.

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“…Szczególnie istotne jest ograniczenie przedostawania się do środowiska substancji priorytetowych oraz tych uznawanych za potencjalnie niebezpieczne, których głównym źródłem punktowym są odpływy z konwencjonalnych oczyszczalni ścieków [Kim, Zoh 2016]. Mikrozanieczyszczenia te przyczyniają się do nieodwracalnych zmian obserwowanych w zbiornikach wodnych, wśród których wymieniamy między innymi: zmiany histopatologiczne w ciele ryb [Tetreault i Wśród metod pozwalających na eliminację mikrozanieczyszczeń z różnych matryc wodnych największą popularność zyskały zaawansowane procesy utleniania [Ribeiro i in.…”

Section: Wstępunclassified

Removal of Antropogenic Organic Micropollutants From Different Water Streams in the Fk/Uf/Nf Sequential System

et al. 2017

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STRESZCZENIEZnaczna liczba mikrozanieczyszczeń organicznych pochodzenia antropogenicznego zaliczana jest do związków trudno-lub niebiodegradowalnych, mogących negatywnie oddziaływać na organizmy żywe, w tym również na zdrowie człowieka. Za główne źródło tego rodzaju zanieczyszczeń uznawane są ścieki bytowo-gospodarcze oraz ścieki z różnych gałęzi przemysłu. Celem pojętych badań było opracowanie metody pozwalającej na usunięcie z różnych strumieni wodnych wybranych mikrozanieczyszczeń tj. diklofenaku, oktylofenolu, antracenu oraz bezno[a]pirenu w oparciu o zawansowane procesy utleniania oraz techniki filtracji membranowej. Badania prowadzono na roztworach sporządzonych na bazie wody zdejonizowanej oraz modelowych i rzeczywistych ściekach zawierających mikrozanieczyszczenia o stężeniu 0,5 mg/dm 3 . Zastosowano fotokatalityczne utlenianie w obecności TiO 2 prowadzone w reaktorze porcjowym wyposażonym w lampę UV o mocy 150 W. Uzyskane roztwóry poprocesowe poddano procesowi ultrafiltracji mającej na celu odseparowanie cząsteczek katalizatora jak i zatrzymanie wysokocząsteczkowych związków organicznych wchodzących w skład oczyszczanych strumieni wodnych. Proces realizowano w układzie filtracji jednokierunkowej przy ciśnieniu transmembranowym wynoszącym 0,2 MPa. Wykonana analiza chromatograficzna mająca na celu określenie stopnia usunięcia badanych mikrozanieczyszczeń w roztworach podprocesowych wskazała na ich niecałkowity rozkład w procesie fotokatalizy oraz na generowanie znacznej liczby ubocznych produktów ich utleniania. W celu ich kompletnej eliminacji zastosowano drugi etap filtracji membranowej przy użyciu membrany nanofiltracyjnej. Zaproponowany układ łączący fotokatalizę z dwustopniową filtracją membranową pozwolił na ponad 91% usunięcie mikrozanieczyszczeń z roztworów wodnych sporządzonych na bazie wody zdejonizowanej oraz na całkowite usunięcie związków oraz ubocznych produktów ich utleniania ze ścieków modelowych jak i rzeczywistych.Słowa kluczowe: mikrozanieczyszczenia organiczne, środowisko wodne, układ sekwencyjny, fotokataliza, ultrafiltracja, nanofiltracja REMOVAL OF ANTROPOGENIC ORGANIC MICROPOLLUTANTS FROM DIFFERENT WATER STREAMS IN THE FK/UF/NF SEQUENTIAL SYSTEMABSTRACT A significant number of anthropogenic organic micropollutants are classified as hardly-or non-biodegradable compounds, which may adversely affect the living organisms, including human health. Municipal wastewater and wastewater from various industry sectors are considered as the main source of this type of pollutants. The aim of the conducted study was to develop a method for the removal of selected micropollutants such as diclofenac, octylphenol, anthracene and benzo[a]pyrene from various water streams, based on advanced oxidation processes and membrane filtration techniques. The research was carried out on solutions prepared on the basis of deionised water as well as a model and actual effluent from a mechanical-biological wastewater treatment line. The concentration of micropollutions was 0.5 mg/dm 3 . Photocatalytic oxidation wa...

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Occurrence and removals of micropollutants in water environment

Cited by 150 publications

References 127 publications

Water Quality Monitoring in Northern India for an Evaluation of the Efficiency of Bank Filtration Sites

Water Quality Monitoring in Northern India for an Evaluation of the Efficiency of Bank Filtration Sites

Elimination of Bisphenol A from Wastewater through Membrane Filtration Processes

Removal of Antropogenic Organic Micropollutants From Different Water Streams in the Fk/Uf/Nf Sequential System

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