Matches in SemOpenAlex for { <https://semopenalex.org/work/W2149273061> ?p ?o ?g. }
- W2149273061 endingPage "285" @default.
- W2149273061 startingPage "285" @default.
- W2149273061 abstract "Environmental context The use of water contaminated with arsenic for drinking and irrigation is linked to water and food borne diseases throughout the world. Although reducing conditions in soils and sediments are generally viewed as enhancing arsenic mobility in subsurface environments, we show they can actually promote As sequestration in the presence of reduced sulfur species and labile organic matter. We propose that sulfurisation of organic matter and subsequent binding of As to thiol groups may offer an innovative pathway for As remediation. Abstract Flow-through reactors (FTRs) were used to assess the mobility of arsenic under sulfate reducing conditions in natural, undisturbed lake sediments. The sediment slices in the FTRs were supplied continuously with inflow solutions containing sulfate and soluble AsIII or AsV and, after 3 weeks, also lactate. The experiment ran for a total of 8 weeks. The dissolved iron concentration, pH, redox potential (Eh), as well as aqueous As and sulfur speciation were monitored in the outflow solutions. In FTRs containing surface sediment enriched in labile organic matter (OM), microbial sulfate reduction led to an accumulation of organically bound S, as evidenced by X-ray absorption spectroscopy. For these FTRs, the inflowing dissolved As concentration of 20μM was lowered by two orders of magnitude, producing outflow concentrations of 0.2μM monothioarsenate and 0.1μM arsenite. In FTRs containing sediment collected at greater depth, sulfide and zero-valent S precipitated as pyrite and elemental S, while steady-state outflow arsenite concentrations remained near 5μM. The observations thus suggest that As sequestration is enhanced when sediment OM buffers the free sulfide and zero-valent S concentrations. An updated conceptual model for the fate of As in the anoxic As–C–S–Fe system is presented based on the results of this study." @default.
- W2149273061 created "2016-06-24" @default.
- W2149273061 creator A5010144531 @default.
- W2149273061 creator A5037707164 @default.
- W2149273061 creator A5047021158 @default.
- W2149273061 creator A5068285222 @default.
- W2149273061 date "2013-01-01" @default.
- W2149273061 modified "2023-10-16" @default.
- W2149273061 title "Arsenic binding to organic and inorganic sulfur species during microbial sulfate reduction: a sediment flow-through reactor experiment" @default.
- W2149273061 cites W1587162022 @default.
- W2149273061 cites W1963563284 @default.
- W2149273061 cites W1969609710 @default.
- W2149273061 cites W1970433028 @default.
- W2149273061 cites W1973774177 @default.
- W2149273061 cites W1982755393 @default.
- W2149273061 cites W1983085190 @default.
- W2149273061 cites W1995287253 @default.
- W2149273061 cites W1995824260 @default.
- W2149273061 cites W1998574121 @default.
- W2149273061 cites W2011364586 @default.
- W2149273061 cites W2011870189 @default.
- W2149273061 cites W2024333105 @default.
- W2149273061 cites W2027224070 @default.
- W2149273061 cites W2029951496 @default.
- W2149273061 cites W2032170210 @default.
- W2149273061 cites W2033240653 @default.
- W2149273061 cites W2037541088 @default.
- W2149273061 cites W2037935218 @default.
- W2149273061 cites W2040658241 @default.
- W2149273061 cites W2041486246 @default.
- W2149273061 cites W2042540650 @default.
- W2149273061 cites W2044781725 @default.
- W2149273061 cites W2046302983 @default.
- W2149273061 cites W2050936460 @default.
- W2149273061 cites W2054297645 @default.
- W2149273061 cites W2067273208 @default.
- W2149273061 cites W2068033071 @default.
- W2149273061 cites W2068102780 @default.
- W2149273061 cites W2070227796 @default.
- W2149273061 cites W2072172339 @default.
- W2149273061 cites W2073481205 @default.
- W2149273061 cites W2075530493 @default.
- W2149273061 cites W2076885308 @default.
- W2149273061 cites W2079857422 @default.
- W2149273061 cites W2081430673 @default.
- W2149273061 cites W2087359898 @default.
- W2149273061 cites W2088078799 @default.
- W2149273061 cites W2092130017 @default.
- W2149273061 cites W2093183472 @default.
- W2149273061 cites W2093237735 @default.
- W2149273061 cites W2095816456 @default.
- W2149273061 cites W2113068976 @default.
- W2149273061 cites W2125027863 @default.
- W2149273061 cites W2141892377 @default.
- W2149273061 cites W2145126560 @default.
- W2149273061 cites W2148032370 @default.
- W2149273061 cites W2157189858 @default.
- W2149273061 cites W2165399803 @default.
- W2149273061 cites W2167437752 @default.
- W2149273061 cites W2327660399 @default.
- W2149273061 cites W2328250730 @default.
- W2149273061 cites W2331559689 @default.
- W2149273061 cites W2332730764 @default.
- W2149273061 doi "https://doi.org/10.1071/en13010" @default.
- W2149273061 hasPublicationYear "2013" @default.
- W2149273061 type Work @default.
- W2149273061 sameAs 2149273061 @default.
- W2149273061 citedByCount "46" @default.
- W2149273061 countsByYear W21492730612013 @default.
- W2149273061 countsByYear W21492730612014 @default.
- W2149273061 countsByYear W21492730612015 @default.
- W2149273061 countsByYear W21492730612016 @default.
- W2149273061 countsByYear W21492730612017 @default.
- W2149273061 countsByYear W21492730612018 @default.
- W2149273061 countsByYear W21492730612019 @default.
- W2149273061 countsByYear W21492730612020 @default.
- W2149273061 countsByYear W21492730612021 @default.
- W2149273061 countsByYear W21492730612022 @default.
- W2149273061 countsByYear W21492730612023 @default.
- W2149273061 crossrefType "journal-article" @default.
- W2149273061 hasAuthorship W2149273061A5010144531 @default.
- W2149273061 hasAuthorship W2149273061A5037707164 @default.
- W2149273061 hasAuthorship W2149273061A5047021158 @default.
- W2149273061 hasAuthorship W2149273061A5068285222 @default.
- W2149273061 hasBestOaLocation W21492730611 @default.
- W2149273061 hasConcept C107872376 @default.
- W2149273061 hasConcept C112570922 @default.
- W2149273061 hasConcept C127313418 @default.
- W2149273061 hasConcept C151730666 @default.
- W2149273061 hasConcept C178790620 @default.
- W2149273061 hasConcept C179104552 @default.
- W2149273061 hasConcept C185592680 @default.
- W2149273061 hasConcept C18903297 @default.
- W2149273061 hasConcept C199289684 @default.
- W2149273061 hasConcept C2776062231 @default.
- W2149273061 hasConcept C2776305511 @default.
- W2149273061 hasConcept C2778343803 @default.
- W2149273061 hasConcept C2780596425 @default.