FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2901545790> ?p ?o ?g. }

• W2901545790 endingPage "100013" @default.
• W2901545790 startingPage "100013" @default.
• W2901545790 abstract "Current groundwater treatment facilities, mostly relying on aeration-filtration configurations, aim at the removal of iron (Fe), ammonia (NH4+) and manganese (Mn). However, recently water companies expressed the ambition to also reduce arsenic (As) concentrations in these rapid sand filters. The aim of this study was to investigate the effect of the Fe oxidation state entering a biological filter bed on As removal. By varying supernatant water level, either Fe(II) or Fe(III) in the form of hydrous ferric oxides (HFO) could be stimulated to enter the filter bed at alkaline groundwater pH (7.6). The experimental pilot column filters showed that once the As(III) oxidation stabilised in the top layer of the filter sand, As removal reached its maximum (±75% at 120 cm supernatant level and 1.5 m/h filtration velocity). The increase in supernatant level from 5 to 120 cm resulted in additional HFO production prior to rapid filtration (1.5, 5 and 10 m/h), i.e. homogeneous Fe(II) oxidation and flocculation, and subsequently, HFO ending up deeper into the filter bed (120 cm filter depth). At a low supernatant water level of 5 cm, Fe(II) oxidised heterogeneously and was removed within the top 20 cm of the filter bed. Consequently, filters with high supernatant levels removed As to lower levels (by 20%) than in filters with low supernatant water levels. The benefits of Fe(II) oxidation prior to filtration for As removal was confirmed by comparing Fe(III) to Fe(II) additions in the supernatant water or in the filter bed. Overall it is concluded that in biological groundwater filters, the combination of a higher supernatant level and/or Fe(III) addition with biological As(III) oxidation in the top of the filter bed promotes As removal." @default.
• W2901545790 created "2018-11-29" @default.
• W2901545790 creator A5003753036 @default.
• W2901545790 creator A5005946949 @default.
• W2901545790 creator A5009458771 @default.
• W2901545790 creator A5063575796 @default.
• W2901545790 creator A5080014379 @default.
• W2901545790 date "2018-12-01" @default.
• W2901545790 modified "2023-10-16" @default.
• W2901545790 title "Effect of supernatant water level on As removal in biological rapid sand filters" @default.
• W2901545790 cites W1508303068 @default.
• W2901545790 cites W1980849404 @default.
• W2901545790 cites W1984837224 @default.
• W2901545790 cites W1986422842 @default.
• W2901545790 cites W1996043511 @default.
• W2901545790 cites W1999235739 @default.
• W2901545790 cites W2008186207 @default.
• W2901545790 cites W2021958500 @default.
• W2901545790 cites W2039717081 @default.
• W2901545790 cites W2048683312 @default.
• W2901545790 cites W2067961533 @default.
• W2901545790 cites W2094123783 @default.
• W2901545790 cites W2116247546 @default.
• W2901545790 cites W2119686698 @default.
• W2901545790 cites W2161083678 @default.
• W2901545790 cites W2192108060 @default.
• W2901545790 cites W2337080074 @default.
• W2901545790 cites W2345826109 @default.
• W2901545790 cites W2346534394 @default.
• W2901545790 cites W2512846455 @default.
• W2901545790 cites W2550298486 @default.
• W2901545790 cites W2561270702 @default.
• W2901545790 cites W2771808334 @default.
• W2901545790 cites W2777701582 @default.
• W2901545790 cites W2895490327 @default.
• W2901545790 doi "https://doi.org/10.1016/j.wroa.2018.100013" @default.
• W2901545790 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6550125" @default.
• W2901545790 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31193912" @default.
• W2901545790 hasPublicationYear "2018" @default.
• W2901545790 type Work @default.
• W2901545790 sameAs 2901545790 @default.
• W2901545790 citedByCount "11" @default.
• W2901545790 countsByYear W29015457902019 @default.
• W2901545790 countsByYear W29015457902020 @default.
• W2901545790 countsByYear W29015457902021 @default.
• W2901545790 countsByYear W29015457902023 @default.
• W2901545790 crossrefType "journal-article" @default.
• W2901545790 hasAuthorship W2901545790A5003753036 @default.
• W2901545790 hasAuthorship W2901545790A5005946949 @default.
• W2901545790 hasAuthorship W2901545790A5009458771 @default.
• W2901545790 hasAuthorship W2901545790A5063575796 @default.
• W2901545790 hasAuthorship W2901545790A5080014379 @default.
• W2901545790 hasBestOaLocation W29015457901 @default.
• W2901545790 hasConcept C105795698 @default.
• W2901545790 hasConcept C106131492 @default.
• W2901545790 hasConcept C107872376 @default.
• W2901545790 hasConcept C127313418 @default.
• W2901545790 hasConcept C128489963 @default.
• W2901545790 hasConcept C136223276 @default.
• W2901545790 hasConcept C148815931 @default.
• W2901545790 hasConcept C178790620 @default.
• W2901545790 hasConcept C179104552 @default.
• W2901545790 hasConcept C185592680 @default.
• W2901545790 hasConcept C187320778 @default.
• W2901545790 hasConcept C190960625 @default.
• W2901545790 hasConcept C2778581769 @default.
• W2901545790 hasConcept C2780534640 @default.
• W2901545790 hasConcept C31972630 @default.
• W2901545790 hasConcept C33923547 @default.
• W2901545790 hasConcept C39432304 @default.
• W2901545790 hasConcept C41008148 @default.
• W2901545790 hasConcept C43617362 @default.
• W2901545790 hasConcept C76177295 @default.
• W2901545790 hasConcept C86922832 @default.
• W2901545790 hasConcept C87717796 @default.
• W2901545790 hasConcept C94061648 @default.
• W2901545790 hasConceptScore W2901545790C105795698 @default.
• W2901545790 hasConceptScore W2901545790C106131492 @default.
• W2901545790 hasConceptScore W2901545790C107872376 @default.
• W2901545790 hasConceptScore W2901545790C127313418 @default.
• W2901545790 hasConceptScore W2901545790C128489963 @default.
• W2901545790 hasConceptScore W2901545790C136223276 @default.
• W2901545790 hasConceptScore W2901545790C148815931 @default.
• W2901545790 hasConceptScore W2901545790C178790620 @default.
• W2901545790 hasConceptScore W2901545790C179104552 @default.
• W2901545790 hasConceptScore W2901545790C185592680 @default.
• W2901545790 hasConceptScore W2901545790C187320778 @default.
• W2901545790 hasConceptScore W2901545790C190960625 @default.
• W2901545790 hasConceptScore W2901545790C2778581769 @default.
• W2901545790 hasConceptScore W2901545790C2780534640 @default.
• W2901545790 hasConceptScore W2901545790C31972630 @default.
• W2901545790 hasConceptScore W2901545790C33923547 @default.
• W2901545790 hasConceptScore W2901545790C39432304 @default.
• W2901545790 hasConceptScore W2901545790C41008148 @default.
• W2901545790 hasConceptScore W2901545790C43617362 @default.
• W2901545790 hasConceptScore W2901545790C76177295 @default.
• W2901545790 hasConceptScore W2901545790C86922832 @default.
• W2901545790 hasConceptScore W2901545790C87717796 @default.

• next