Abstract：
:Bitumen mining in the Canadian oil sands creates large volumes of oil sands process-affected water (OSPW), the toxicity of which is due in part to naphthenic acids (NAs) and other acid extractable organics (AEO). The objective of this work was to evaluate the potential of solar photocatalysis over TiO2 to remove AEO from OSPW. One day of photocatalytic treatment under natural sunlight (25 MJ/m(2) over ∼14 h daylight) eradicated AEO from raw OSPW, and acute toxicity of the OSPW toward Vibrio fischeri was eliminated. Nearly complete mineralization of organic carbon was achieved within 1-7 day equivalents of sunlight exposure, and degradation was shown to proceed through a superoxide-mediated oxidation pathway. High resolution mass spectrometry (HRMS) analysis of oxidized intermediate compounds indicated preferential degradation of the heavier and more cyclic NAs (higher number of double bond equivalents), which are the most environmentally persistent fractions. The photocatalyst was shown to be recyclable for multiple uses, and thus solar photocatalysis may be a promising "green" advanced oxidation process (AOP) for OSPW treatment.
journal_name
Chemospherejournal_title
Chemosphereauthors
Leshuk T,Wong T,Linley S,Peru KM,Headley JV,Gu Fdoi
10.1016/j.chemosphere.2015.10.073subject
Has Abstractpub_date
2016-02-01 00:00:00pages
1854-61eissn
0045-6535issn
1879-1298pii
S0045-6535(15)30268-Xjournal_volume
144pub_type
杂志文章相关文献
CHEMOSPHERE文献大全abstract：:Organic Acids (OAs) are important components in the rhizosphere soil and influence Se bioavailability in soil. OAs have a bidirectional contrasting effect on Se bioavailability. Understanding the interaction of OAs with Se is essential to assessing Se bioavailability in soil and clarifying the role of OAs in controlli...
journal_title：Chemosphere
pub_type： 杂志文章,评审
doi：10.1016/j.chemosphere.2017.06.034
更新日期：2017-10-01 00:00:00
abstract：:It is well known that serum is an ideal and potential choice to reflect the toxicity of fluoride. However, the effects of fluoride on serum metabolome have not been reported until now. In this study, the models of 3-week-old rats exposed fluoride by breast milk and 11-week-old rats exposed fluoride via breast milk and...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2020.127387
更新日期：2020-11-01 00:00:00
abstract：:Rare earth elements (REEs) are essential in high technology industries and have great economic value. The monitoring of REEs concentrations in rocks from oil well drill cuttings is critical to avoid environmental contamination and evaluate new sources of these elements. However, information is scarce about the REEs co...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2020.127984
更新日期：2021-01-01 00:00:00
abstract：:A series of CX-TiO2(Carbon Xerogel- TiO2) composites with a hierarchical porous structure were obtained through the sol-gel method followed by drying and carbonization, and have been applied to treating solubilizing wastewater containing a high concentration of phenanthrene (PHE). The characterizations demonstrated th...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2020.127588
更新日期：2020-12-01 00:00:00
abstract：:In this study, the influence of Na2SO4 on electro-dewatering (EDW) of waste activated sludge (WAS) was investigated. The highest water removal efficiency of 42.5% was achieved at the optimum Na2SO4 dosage of 12.5 g kg-1 DS during EDW process at a constant voltage of 20 V. The migration and distribution of water, organ...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2017.09.034
更新日期：2017-12-01 00:00:00
abstract：:Electrochemical oxidation of 2,4,5-trichlorophenoxyacetic acid (2,4,5-T) over metal-oxide-coated Ti anodes, i.e., Ti/SnO2-Sb/Ce-PbO2, Ti/SnO2-Sb and Ti/RuO2, was examined. The degradation efficiency of over 90% was attained at 20 min at different initial concentrations (0.5-20 mg L(-1)) and initial pH values (3.1-11.2...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2015.04.100
更新日期：2015-10-01 00:00:00
abstract：:The goal of this study was to characterize body burdens of polychlorinated dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and polychlorinated biphenyls (PCBs) in three groups of Siberians living in the Irkutsk Region of Russia. These groups included firefighters exposed to a mixture of toxic substances exting...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/s0045-6535(01)00197-7
更新日期：2002-04-01 00:00:00
abstract：:Polychlorinated diphenyl ethers (PCDEs), 2,3,7,8-substituted polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs), and polychlorinated biphenyls (PCBs) were analyzed in seals from the Gulf of Finland and in sediments from the Gulf of Finland and near Gotland. The sediments included one surface core from...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/s0045-6535(97)00212-9
更新日期：1997-09-01 00:00:00
abstract：:Transcriptomic analysis can complement traditional ecotoxicology data by providing mechanistic insight, and by identifying sub-lethal organismal responses and contaminant classes underlying observed toxicity. Before transcriptomic information can be used in monitoring and risk assessment, it is necessary to determine ...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2015.08.019
更新日期：2016-02-01 00:00:00
abstract：:Removal of slop oil, a by-product of oil refining, also obtained in cleaning up of oil tanks and filters is a difficult issue. High content of hydrocarbons (C3-C40) and other organic compounds makes this waste difficult to eliminate from the environment. The purpose of this investigation was to combine bacterial degra...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2020.126203
更新日期：2020-07-01 00:00:00
abstract：:This study investigated the feasibility of using photoheterotrophic microalga, Desmodesmus armatus SCK, for removal of cesium (Cs+) followed by recovery process using magnetic nanoparticles. The comparison of three microalgae results indicated that D. armatus SCK removed the most Cs+ at both 25 °C and 10 °C. The resul...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2020.126482
更新日期：2020-08-01 00:00:00
abstract：:After administration to livestock, a large fraction of antibiotics are excreted unchanged via excreta and can be transferred to agricultural land. For effective risk assessment a critical factor is to determine which antibiotics can be expected in the different environmental compartments. After excretion, the first re...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2018.04.042
更新日期：2018-08-01 00:00:00
abstract：:Dimensionally stable anodes (DSA) have been widely used to degrade organic compounds because these surfaces promote the electrogeneration of active chlorine species in the bulk of the solution, as well as in the vicinity of the anode when NaCl is used as supporting electrolyte. In this work, the nanoparticles synthesi...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2020.126674
更新日期：2020-07-01 00:00:00
abstract：:The Fraunhofer-Gesellschaft has sponsored the development of a conceptual and flexible, computer aided tool to perform the impact assessment within LCA (life cycle assessment) for technical products and processes. The developed general framework "Ela 1.0" (environmental loads analysis) consists of four elements: the s...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/s0045-6535(97)00334-2
更新日期：1997-12-01 00:00:00
abstract：:Biochar has become a popular research topic in sustainable chemistry for use both in agriculture and pollution abatement. To enhance aqueous Cr(VI), Pb(II) and Cd(II) removal efficiency, high surface area (535 m2/g) byproduct Douglas fir biochar (DFBC) from commercial syn-gas production obtained by fast pyrolysis (900...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2020.128409
更新日期：2020-09-28 00:00:00
abstract：:Products of animal origin represent the main route of human exposure to dioxins and dioxin-like PCBs (DL-compounds). Recently, concerns have been raised about ovine products, particularly the liver, in which relatively high levels of DL-compounds have been reported. We surveyed ovine and bovine livers in areas with no...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2016.02.101
更新日期：2016-06-01 00:00:00
abstract：:The end products of atmospheric degradation are not only CO2 and H2O but also sulfate and nitrate depending on the chemical composition of the substances which are subject to degradation processes. Atmospheric degradation has thus a direct influence on the radiative balance of the earth not only due to formation of gr...
journal_title：Chemosphere
pub_type： 杂志文章,评审
doi：10.1016/s0045-6535(98)00545-1
更新日期：1999-03-01 00:00:00
abstract：BACKGROUND:The relation between the levels of dioxins in human breast milk and the smoking habits of the mothers is controversial. To clarify this relationship, we analyzed data from the human milk survey in Japan. METHODS:The human milk survey has been conducted in Japan since 1997. Healthy pregnant women aged 20-39 ...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2007.01.050
更新日期：2007-06-01 00:00:00
abstract：:Direct charge transfer (DCT) and •OH attack played important roles in contaminant degradation by BDD electrochemical oxidation. Their separate contributions and potential bond-cleavage processes were required but lacking. Here, we carried out promising compound-specific isotope fractionation analysis (CSIA) to explore...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2021.129754
更新日期：2021-01-22 00:00:00
abstract：:In order to obtain basic information for designing standardized test preparation methods, the heavy metals Zn, Cu, Cd and Pb were measured in gastropods (Xerolenta obvia), oligochaetes (Lumbricus terrestris), isopods (Armadillidium vulgare, Trachelipus rathkei) and carabids (Harpalus rubripes, Calathus fuscipes) using...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/S0045-6535(03)00442-9
更新日期：2003-08-01 00:00:00
abstract：:Bisphenol A (BPA) is a high-production-volume industrial chemical that facilitates the development of breast cancer. However, the molecular mechanism associated with BPA-induced breast cancer cell proliferation and migration remains elusive. In our study, we exposed MCF-7 cells to different concentrations of BPA (0.1,...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2020.129221
更新日期：2020-12-15 00:00:00
abstract：:The emission rates and compositions of monoterpene from Pinus densiflora were investigated in the Gumsung (GM) and Worak (WM) mountains. The standard emission rates (ERs: ERs is the monoterpene emission rate at standard temperature, 30 degrees C) from P. densiflora ranged from 0.817 to 1.704 (microgC/gdw-h). The ERs a...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2008.06.048
更新日期：2008-09-01 00:00:00
abstract：:In this work, the prepared mesoporous TiO2 was employed to eliminate the environmental risk induced by the combined pollution (tris-(2-chloroisopropyl) phosphate (TCPP) and Cd2+). The prepared material was characterized by X-ray diffraction (XRD), UV-vis diffuse reflectance spectra (UV-DRS), Raman imaging spectrometer...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2020.129238
更新日期：2021-03-01 00:00:00
abstract：:This paper provides a circular win-win approach for recycling rhizofiltration biomass into multifunctional engineered biochar for various environmental applications (e.g. phosphate recovery) with a potential reuse of the exhausted biochar as an enriched soil amendment. Functionalized biochars were derived from the dis...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2018.01.113
更新日期：2018-05-01 00:00:00
abstract：:Highly dispersed ZrO2 particles confined in the MIL-101 (denoted as MIL-101@Zr(DS)) with varied ZrO2 loading amounts were prepared by the double solvents method. For comparison, ZrO2 loaded MIL-101 samples were synthesized by the conventional impregnation method (denoted as MIL-101@Zr(I)) and the deposition method (de...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2018.07.085
更新日期：2018-11-01 00:00:00
abstract：:During foraging, bees are exposed to sublethal doses of insecticides, which can cause morphological changes to various organs, such as the midgut, Malpighian tubules, and mushroon body. Thus, the purpose of this study was to establish a scoring system to evaluate these alterations based on the damage caused and its re...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2019.06.225
更新日期：2019-12-01 00:00:00
abstract：:Food contamination with cadmium (Cd) is a serious health threat to humans worldwide and Cd accumulation by rice is a major source of Cd entrance to the food chain. Silicon (Si) application decreases the Cd content in rice but the timing of Si application may need further investigation. The present study investigated t...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2019.03.182
更新日期：2019-07-01 00:00:00
abstract：:In this study, we examined the influence of oxygen on the degradation of di (2-ethylhexyl) phthalate (DEHP), the accumulation of its monoester metabolite mono (2-ethylhexyl) phthalate (MEHP) and their impact on soil bacterial communities. Soil microcosms artificially contaminated with DEHP (0, 100 and 1000 mg kg-1) we...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2018.10.078
更新日期：2019-02-01 00:00:00
abstract：:The ecotoxicological risk assessment methodologies developed up to now mainly focus on local pollution and do not incorporate an evaluation and prioritization of the different risk situations present in the same territory. This article presents the different phases of formulating an innovative methodology developed to...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2017.09.054
更新日期：2017-12-01 00:00:00
abstract：:A historically multi-metal contaminated soil was amended with biochars produced from different parts of rice plants (straw, husk and bran) to investigate how biochar can influence the mobility of Cd, Zn, Pb and As in rice seedlings (Oryza sativa L.). Rice shoot concentrations of Cd, Zn and Pb decreased by up to 98%, 8...
journal_title：Chemosphere
pub_type： 杂志文章
doi：10.1016/j.chemosphere.2012.05.008
更新日期：2012-10-01 00:00:00
