Abstract:
:Chemical kinetics of trichloroethene (TCE) degradation by pyrite was investigated at different experimental conditions. The TCE was transformed into C2H2, 1,1-dichloroethene (DCE) and C2H4 by a slow process (240 h required to convert TCE by 80%). Thereafter, the degradation rate showed a monotonous increase with the pH. A simple kinetic model was proposed to quantify the TCE degradation by pyrite.
journal_name
Chemospherejournal_title
Chemosphereauthors
Weerasooriya R,Dharmasena Bdoi
10.1016/s0045-6535(00)00160-0subject
Has Abstractpub_date
2001-02-01 00:00:00pages
389-96issue
4eissn
0045-6535issn
1879-1298pii
S0045-6535(00)00160-0journal_volume
42pub_type
杂志文章相关文献
CHEMOSPHERE文献大全abstract::Veterinary antibiotics are the most heavily used pharmaceuticals in intensive animal farming operation. Their presence in the environment through application of manure and lagoon water as fertilizer in agricultural fields has generated a growing concern in recent years due to potential threat to the ecosystem and the ...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2012.12.050
更新日期:2013-06-01 00:00:00
abstract::Chemically enhanced phytoextraction is achieved by the application of chelates to soils. Using pot experiments, the effect of the combined application of EDTA and EDDS on the uptake of Cu, Pb, Zn and Cd by Zea mays L. was studied. Among the tested application ratios of 1:1, 1:2, and 2:1 (EDTA/EDDS), 2:1 of EDTA:EDDS w...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2005.09.050
更新日期:2006-06-01 00:00:00
abstract::The safety of creating fish farms in agricultural settings was evaluated by growing Piaractus mesopotamicus in a pond, while crops where cultivated in a nearby field under a pesticide application regime typical of the Pampa region. Atrazine, glyphosate and its metabolite, aminomethylphosphonic acid (AMPA), were detect...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2020.128408
更新日期:2021-01-01 00:00:00
abstract::This study combined laboratory based microcosm systems as well as field experiments to evaluate the mobility of atrazine on a Ultisol under humid tropical conditions in Brazil. Results from sorption experiments fit to the Freundlich isotherm model [K(f) 0.99 mg kg(-1)/(mg l(-1))(1/n)], and indicate a low sorption capa...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2006.11.034
更新日期:2007-03-01 00:00:00
abstract::Nitrification process has been reported to be capable of degrading various pharmaceuticals due to the cometabolism of ammonia-oxidizing bacteria (AOB). The membrane aerated biofilm reactor (MABR) is an emerging configuration in wastewater treatment with advantages of high nitrification rate and low energy consumption....
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2020.128224
更新日期:2021-01-01 00:00:00
abstract::The observed high-level burdens of organohalogens among the residents of the Faroe Islands, needs to be explained. Long-finned pilot whale (Globicephala melas) blubber and meat are known sources of environmental exposure. The present study focus on the organohalogen contamination of the fulmar (Fulmarus glacialis). Th...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2005.01.065
更新日期:2005-08-01 00:00:00
abstract::Microcosm studies were undertaken to relate biomarker responses to the toxicities in soil ecosystems contaminated by phenanthrene (Phe) and pyrene (Pyr), both singly and combined. Growth inhibition, enzyme activity, MDA content, sperm count, neutral-red retention time (NRRT) and annetocin and TCTP gene transcriptions ...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2011.11.055
更新日期:2012-04-01 00:00:00
abstract::A trace analytical method of benzene, toluene, ethylbenzene and xylenes (BTEX) in water has been developed by using headspace solid-phase microextraction (HS-SPME) coupled to cryo-trap gas chromatography-mass spectrometry (GC-MS). The chromatographic peak shape for BTEX was improved by using cryo-trap equipment. The H...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2007.05.004
更新日期:2007-11-01 00:00:00
abstract::The Fenton process, one of several advanced oxidation processes, describes the reaction of Fe(II) with hydrogen peroxide. Fe(II) is oxidized to Fe(III) that reacts with hydrogen peroxide to Fe(II) and again initiates the Fenton reaction. In the course of the reactions reactive species, e.g. hydroxyl radicals, are form...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2017.05.039
更新日期:2017-09-01 00:00:00
abstract::Organofluorine compounds are rare in Nature, with only a handful known to be produced by some species of plant and two microorganisms. Consequently, the mechanism of enzymatic carbon-fluorine bond formation is poorly understood. The bacterium Streptomyces cattleya biosynthesises fluoroacetate and 4-fluorothreonine as ...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/S0045-6535(03)00191-7
更新日期:2003-07-01 00:00:00
abstract::Environmental profile transformation and fate of polychlorinated dibenzo-p-dioxins (PCDD) and polychlorinated dibenzofurans (PCDF) were studied using the fugacity-based multimedia environmental fate model. Mass fluxes between compartments were estimated by the steady-state modeling. From the model estimates, major mas...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/s0045-6535(98)00286-0
更新日期:1998-10-01 00:00:00
abstract::The influence of clay minerals on the reduction of Cr6+ by citric acid was investigated at pH values 4.0, 4.5 and 5.0 at 25 degrees C. The results indicate that montmorillonite and illite greatly accelerate the reduction reactions at pH 4.0 and 4.5, but their effects are dramatically reduced at pH 5.0. The role of cla...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2007.10.010
更新日期:2008-03-01 00:00:00
abstract::Bidens pilosa L. (B. pilosa) is considered as an effective phytoremediation plant. In this study, polyaspartic acid (PASP), aminotriacetic acid (NTA) and tea saponin (TS) was combined with B. pilosa. to strengthen the phytoremediation efficiency. The removal rate of pyrene reached 95.8% with B. pilosa alone. The relea...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2019.124502
更新日期:2019-12-01 00:00:00
abstract::As an effective organochlorine pesticide, Dicofol has been extensively applied in more than 30 countries for protecting over 60 different crops. Considering its large consumption and potential adverse effect on human health (endocrine disrupting and carcinogenicity), the fate of Dicofol sprayed into the air is of publ...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2018.12.048
更新日期:2019-03-01 00:00:00
abstract::An experimental study was conducted to investigate the trophic transfer of 137Cs in marine and freshwater food chains, focusing on phytoplankton, zooplankton, and planktivorous fish. Algal concentration factors were 278 in freshwater and 69 in seawater. The weight-normalized uptake rate constants of 137Cs were similar...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2018.06.124
更新日期:2018-10-01 00:00:00
abstract::Biochar pyrolysed at 300 °C, 500 °C, 700 °C was modified by hydrochloric acid (HCl), hydrofluoric acid (HF), sodium hydroxide (NaOH), hydrogen peroxide (H2O2), nitric acid (HNO3) and potassium permanganate (KMnO4), and subsequently evaluated for removal efficiency of 1,2,4-trichlorobenzene (1,2,4-TCB) by biochar suppo...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2020.126518
更新日期:2020-06-01 00:00:00
abstract::Groundwater is a complex mixture of chemicals that is naturally variable. Current legislation in the UK requires that groundwater quality and the degree of contamination are assessed using chemical methods. Such methods do not consider the synergistic or antagonistic interactions that may affect the bioavailability an...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/s0045-6535(02)00060-7
更新日期:2002-05-01 00:00:00
abstract::We investigated the capacity of a consortium of ascomycetous strains, Doratomyces nanus, Doratomyces purpureofuscus, Doratomyces verrucisporus, Myceliophthora thermophila, Phoma eupyrena and Thermoascus crustaceus in the mycoremediation of historically contaminated soil and sediment by polychlorinated biphenyls (PCBs)...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2014.03.013
更新日期:2014-09-01 00:00:00
abstract::Histological and Immunohistochemical studies were carried out to document the possible impact of heavy metal contamination in different tissues of Chanos chanos. Heavy metals such as Cu, Pb, Zn, Cd, Mn and Fe were predominant in water, sediment and biota of Kaattuppalli Island and varied significantly between two diff...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2010.12.086
更新日期:2011-04-01 00:00:00
abstract::As part of endocrine disruption in catchments (EDCAT) programme, this work aims to assess the temporal and spatial variations of endocrine disrupting chemicals (EDCs) in River Ray, before and after the commissioning of a full-scale granular activated carbon (GAC) plant at a sewage treatment works (STW). Through spot a...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2011.04.032
更新日期:2011-09-01 00:00:00
abstract::Primary sludge (PS), waste activated sludge (WAS) and a mixture of WAS and PS were fermented at 21 degrees C. The sludge was collected from two plants: the biological nutrient removal (BNR) West End Water Pollution Control Center (WEWPCC) and carbon-removal only South End WPCC (SEWPCC). The PS fermentation predictably...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2010.04.026
更新日期:2010-06-01 00:00:00
abstract::This paper presents a comparison between two different materials used as carriers: inert polyurethane (PU) foam and biodegradable polymer polycaprolactone (PCL) particles for the removal of organics and nitrogen from wastewater with a low C/N ratio using moving bed biofilm reactors. The results, during a monitoring pe...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2010.12.077
更新日期:2011-03-01 00:00:00
abstract::This paper expands upon our original work on nitroanthracenes in (Alparone, A., Librando, V., 2012. Spectrochim. Acta A 89, 129-136) on the series of nitrophenanthrene isomers. Geometries, electric properties, IR and Raman spectra of 1-, 2-, 3-, 4- and 9-nitrophenanthrene (1-NP, 2-NP, 3-NP, 4-NP and 9-NP) were obtaine...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2012.06.020
更新日期:2013-01-01 00:00:00
abstract::The application of fluorescence spectroscopy to monitor natural organic matter (NOM) reduction as a function of biofiltration performance was investigated. This study was conducted at pilot-scale where a conventional media filter was compared to six biofilters employing varying enhancement strategies. Overall reductio...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2016.03.018
更新日期:2016-06-01 00:00:00
abstract::As Aedes aegypti transmits the etiologic agents of both yellow and dengue fever; vector control is considered essential to minimise their incidence. The aim of this work was to identify the component of Carica papaya seed toxic to A. aegypti, and the identification of tegupain, the enzyme that generates it. Aqueous ex...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2012.12.078
更新日期:2013-07-01 00:00:00
abstract::The presence of trace levels of organic contaminants in the environment is currently an environmental concern. When these contaminants are subjected to environmental transformations, environmental transformation products (ETPs) are obtained, whose structures often remain unknown. The absence of information concerning ...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2014.05.036
更新日期:2014-10-01 00:00:00
abstract::The levels of polychlorinated dibenzo-dioxins (PCDDs), polychlorinated dibenzo-furans (PCDFs), coplanar polychlorinated biphenyls (coPCBs), and polybrominated diphenyl ethers (PBDEs) were measured in fish collected from San Francisco Bay in 2000 and from the California coast in 2001. The samples were composites of onl...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2005.12.012
更新日期:2006-06-01 00:00:00
abstract::Passive samplers are used to measure dissolved nonionic organic contaminants (NOCs) in environmental media. More recently, reverse polyethylene samplers (RePES) have been used with spiked sediments to recreate interstitial water exposure concentrations and observed toxicity. In the present study, RePES were used with ...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2010.12.076
更新日期:2011-04-01 00:00:00
abstract::Sorption of radionuclides on mineral surfaces retards their migration in the environment of a repository. Presence of organic ligands, however, affects sorption and consequently influences their transport behavior. In this study, we quantify the sorption of Eu(III) onto quartz surfaces as a function of pH in the absen...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2019.124771
更新日期:2020-01-01 00:00:00
abstract::We examined concentrations of total mercury (tHg, inorganic and methylated forms) and polychlorinated biphenyls (PCBs) in blood and milk from free-ranging Southern Beaufort-Chukchi Sea polar bears (Ursus maritimus) to assess maternal transfer of contaminants during lactation and the potential health risk to nursing yo...
journal_title:Chemosphere
pub_type: 杂志文章
doi:10.1016/j.chemosphere.2012.02.053
更新日期:2012-07-01 00:00:00