TiO2 photocatalytic degradation of PCBs in soil-water systems containing fluoro surfactant.

abstract：:In spite of the increasing concerns about the fate of pharmaceuticals and personal care products (PPCPs) and the nanomaterial pollution in aquatic ecosystem, the effects of carbon nanotubes on the photochemical transformation of PPCPs are less considered. In this study, the photochemical production of reactive oxygen ...

journal_title：Chemosphere

authors： Zhang Y,Zhou L,Zeng C,Wang Q,Wang Z,Gao S,Ji Y,Yang X

更新日期：2013-11-01 00:00:00

abstract：:Spatial distributions of perfluoroalkyl substances (PFASs) were investigated in surface waters in Shanghai, Jiangsu and Zhejiang Provinces of eastern China during 2011. A total of 39 samples of surface waters, including 29 rivers, 6 lakes and 4 reservoirs were collected. High performance liquid chromatography/negative...

journal_title：Chemosphere

authors： Lu Z,Song L,Zhao Z,Ma Y,Wang J,Yang H,Ma H,Cai M,Codling G,Ebinghaus R,Xie Z,Giesy JP

更新日期：2015-01-01 00:00:00

abstract：:Microorganisms play a key role in the redox transformation of arsenic (As) in aquifers. In this study, the impact of indigenous bacteria, especially the prevailing nitrate respirers, on arsenite (As(III)) oxidation was explored during groundwater filtration using granular TiO2 and subsequent spent TiO2 anaerobic landf...

journal_title：Chemosphere

authors： Cui J,Du J,Tian H,Chan T,Jing C

更新日期：2018-04-01 00:00:00

abstract：:This paper summarizes a study on the application of vertical electric direct-current (DC) to control the migration of metal complexes in soil columns when EDTA/[S,S]-ethylenediaminedisuccinic acid (EDDS) is used to enhance ryegrass uptake of Cu/Zn from contaminated soil. The results show that application of EDTA/EDDS ...

journal_title：Chemosphere

authors： Zhou DM,Chen HF,Cang L,Wang YJ

更新日期：2007-04-01 00:00:00

abstract：:This study was aim to investigate the interaction between soil-derived dissolved organic matter (DOM) and atrazine as a kind of pesticides during the sorption process onto black soil. According to the experimental data, the adsorption capacity of Soil + DOM, Soil and DOM were 41.80, 31.45 and 9.35 mg kg-1, separately,...

journal_title：Chemosphere

authors： Wang Y,Zhang X,Zhang X,Meng Q,Gao F,Zhang Y

更新日期：2017-08-01 00:00:00

abstract：:The concentrations of three different fractions of particulate matter (PM) including PM2.5, PM10, and TSP were determined concurrently during March-May 2001. Measurements of three PM fractions were made at hourly intervals from four different observatory sites located within the city boundary of Seoul. On the basis of...

journal_title：Chemosphere

authors： Kim KH,Kim MY

更新日期：2003-06-01 00:00:00

abstract：:Pot experiments were carried out to evaluate the response and intraspecific differences in nitrogen metabolism of 20 alfalfa cultivars under cadmium stress. To the aim, exogenous cadmium was added into soil with concentration of 0 (control) and 50 mg kg-1. Results showed that 20 alfalfa were ranked as following accord...

journal_title：Chemosphere

authors： Yang S,Zu Y,Li B,Bi Y,Jia L,He Y,Li Y

更新日期：2019-04-01 00:00:00

abstract：:Ash samples collected from medical, municipal and small-scale domestic incinerators in Japan were tested for dioxin-like activity using bioassay technique (ethoxyresorufin-O-deethylase: EROD assay) and for extractable organohalogens (EOX) using instrumental neutron activation analysis in order to estimate potential to...

journal_title：Chemosphere

authors： Matsui M,Kashima Y,Kawano M,Matsuda M,Ambe K,Wakimoto T,Doi R

更新日期：2003-12-01 00:00:00

abstract：:The spatial distribution and source of polychlorinated biphenyls (PCBs) in 30 surface sediments of Yueqing Bay, Xiangshan Bay, and Sanmen Bay in Eastern China were analysed. Total concentrations of PCBs ranged from 9.33 to 19.60 ng g(-1) dry weight for all the sampling stations. The observed PCB levels were lower than...

journal_title：Chemosphere

authors： Yang H,Xue B,Jin L,Zhou S,Liu W

更新日期：2011-03-01 00:00:00

abstract：:Red mud, as industrial solid waste, causes severe environmental problems such as soil alkalization and groundwater pollution. In this work, we researched and developed the red mud as a selective catalytic reduction catalyst for NOx removal with NH3 (NH3-SCR). After selective dissolution and specific heat treatment, di...

journal_title：Chemosphere

authors： Gao C,Yang G,Wang D,Gong Z,Zhang X,Wang B,Peng Y,Li J,Lu C,Crittenden J

更新日期：2020-10-01 00:00:00

abstract：:Present study prepared a new magnetic and thermo dual-responsive core-shell nanomaterial (Fe@SiO2@poly(N-isopropylacrymide-co-methacrylic acid, Fe@SiO2@PNIPAM-co-MAA), which was characterized by transmission electron microscopy and X-ray diffraction techniques. The new nanomaterials integrated with the magnetism of na...

journal_title：Chemosphere

authors： Zhou Q,Lei M,Wu Y,Zhou X,Wang H,Sun Y,Sheng X,Tong Y

更新日期：2020-01-01 00:00:00

abstract：:Lead (Pb) and cadmium (Cd) are common heavy metals in the environment, exerting detrimental effects on central nervous system. Although increasing evidence demonstrated the Pb and Cd-induced neurotoxicity, the exact epigenetic mechanisms induced by combined exposure (co-exposure) of Pb and Cd are still unclear. In thi...

journal_title：Chemosphere

authors： Zhou R,Zhao J,Li D,Chen Y,Xiao Y,Fan A,Chen XT,Wang HL

更新日期：2020-08-01 00:00:00

abstract：:A series of C30 branched isoprenoid hydrocarbons with a cyclobotryococcane skeleton were identified in the Florida Coastal Everglades Ecosystem. Nine such C30 alkenes were detected and identified as five-membered ring monocyclic hydrocarbons with an identical parent structure of 7,11-cyclobotryococcane based on their ...

journal_title：Chemosphere

authors： Xu Y,Jaffé R

更新日期：2010-11-01 00:00:00

abstract：:Cyanobacteria-derived toxin microcystin-LR (MCLR) has been widely investigated in its effects on normal cells, there is little information concerning its effects on cancer cells. In the present study, the SMMC-7721 human liver cancer cell line treated with MCLR was used to investigate the change of PP2A, cytoskeleton ...

journal_title：Chemosphere

authors： Wang H,Liu J,Lin S,Wang B,Xing M,Guo Z,Xu L

更新日期：2014-10-01 00:00:00

abstract：:During present investigations, renal toxicity of CdSNPs (cadmium sulphide nanoparticles) (ranged 5-9 nm) was estimated in rat employing specific parameters. Treatment on each alternate day for 45 days with CdSNPs (10 mg/kg b.w.) yielded significant increase in Cd-MT (cadmium metallothionein), lipid peroxidation and H2...

journal_title：Chemosphere

authors： Rana K,Verma Y,Rani V,Rana SVS

更新日期：2018-02-01 00:00:00

abstract：:Field monitoring was practiced from 2001 to 2003 to evaluate the input (irrigation, atmospheric deposition, and fertilizer application) and the output (uptake and accumulation into the above-ground biomass of rice plants and leaching) of cadmium (Cd) in a contaminated paddy field in Tokyo. The cadmium concentrations o...

journal_title：Chemosphere

authors： Kikuchi T,Okazaki M,Toyota K,Motobayashi T,Kato M

更新日期：2007-03-01 00:00:00

abstract：:Naphthenic acids (NAs), a class of structurally diverse carboxylic acids with often complex ring structures and large aliphatic tail groups, are important by-products of many petrochemical processes including the oil sands mining activity of Northern Alberta. While it is evident that NAs have both acute and chronic ha...

journal_title：Chemosphere

authors： Johnston CU,Clothier LN,Quesnel DM,Gieg LM,Chua G,Hermann PM,Wildering WC

更新日期：2017-02-01 00:00:00

abstract：:Nitrogen-heterocyclic compounds (NHCs) are toxic and bio-refractory contaminants widely spread in environment. This study investigated electrochemical degradation of NHCs at boron-doped diamond (BDD) anode with particular attention to the effect of different number and position of nitrogen atoms in molecular structure...

journal_title：Chemosphere

authors： Xing X,Zhu X,Li H,Jiang Y,Ni J

更新日期：2012-01-01 00:00:00

abstract：:We investigated the potential of the laccase from the white-rot fungus Marasmius quercophilus to transform certain alkylphenols (p-nonylphenol, p-octylphenol and p-t-octylphenol). We tested the reactivity of this enzyme under different conditions: in liquid cultures and using the partially purified laccase with and wi...

journal_title：Chemosphere

authors： Farnet AM,Chevremont AC,Gil G,Gastaldi S,Ferre E

更新日期：2011-01-01 00:00:00

abstract：:Soil and groundwater are key components in the sustainable management of the subsurface environment. Source contamination is one of its main threats and is commonly addressed using established remediation techniques such as in-situ chemical oxidation (ISCO), in-situ chemical reduction (ISCR; most notably using zero-va...

journal_title：Chemosphere

authors： Lima AT,Hofmann A,Reynolds D,Ptacek CJ,Van Cappellen P,Ottosen LM,Pamukcu S,Alshawabekh A,O'Carroll DM,Riis C,Cox E,Gent DB,Landis R,Wang J,Chowdhury AIA,Secord EL,Sanchez-Hachair A

更新日期：2017-08-01 00:00:00

abstract：:Surface-active compounds such as synthetic emulsifiers have been used for several decades, both for the degradation of hydrocarbons and increasing desorption of soil-bound metals. However, due to their high toxicity, low degradability, and production costs unaffordable for use in larger ecosystems, synthetic emulsifie...

journal_title：Chemosphere

authors： Colin VL,Pereira CE,Villegas LB,Amoroso MJ,Abate CM

更新日期：2013-01-01 00:00:00

abstract：:For the interpretation of stable isotope ratio trends in saturated geochemical systems, the magnitude of aqueous phase diffusion-induced isotope fractionation needs to be known. This study reviews how five diffusion models (Fick, Maxwell-Stefan, Einstein, Langevin, Mode-Coupling Theory Analysis (MCTA) of diffusion) pr...

journal_title：Chemosphere

authors： Wanner P,Hunkeler D

更新日期：2019-03-01 00:00:00

abstract：:In this study, a facile four-step hydrothermal method was utilized to deposit a core-shell structure on UiO-66(Zr/Ti) nanoflake (NFs) as a visible-light-driven photocatalyst. The core was magnetic Fe3O4 which served as a charge carrier coated with WO3 shell. The as-prepared photocatalyst was characterized by XRD, VSM,...

journal_title：Chemosphere

authors： Bahmani M,Dashtian K,Mowla D,Esmaeilzadeh F,Ghaedi M

更新日期：2021-03-01 00:00:00

abstract：:Surface soil (0-5 cm) samples from 14 sampling sites including rural and urban areas of Dalian, a coastal city in Liaoning Province, China, were collected and analyzed for 84 polychlorinated biphenyls (PCBs). Total 57 PCB congeners were identified and mean concentration of total PCBs among all the sites was 2.8 microg...

journal_title：Chemosphere

authors： Wang DG,Yang M,Jia HL,Zhou L,Li YF

更新日期：2008-08-01 00:00:00

abstract：:Polysulfide was produced and tested for use as an inexpensive chemical agent for the solidification/stabilization of lead in fly ash, generating little hydrogen sulfide gas. According to the equations S(n)(2-)-->S+S(n-1)(2-) and S(n)(2-)+H(+)-->HS(-)+S(n-1), this agent was expected to achieve long-term stability of di...

journal_title：Chemosphere

authors： Sun Y,Watanabe N,Qiao W,Gao X,Wang W,Zhu T

更新日期：2010-09-01 00:00:00

abstract：:The presence of the radionuclide (99)Tc in the marine environment is of concern to environmental scientists because of its conservative nature and high concentration factor in commercially valuable species. The brown seaweed Ascophyllum nodosum (Linnaeus) Le Jolis was used to biomonitor the spatial distribution of (99...

journal_title：Chemosphere

authors： Oliver LR,Perkins WT,Mudge SM

更新日期：2006-12-01 00:00:00

abstract：:Biofilm, fish, oyster, mussel, clam, surface seawater, suspended particulate matter (SPM), and sediment samples were collected from marine and/or estuarine waters of the west coast of India. These samples were analysed for butyltin derivatives such as dibutyltin (DBT) and tributyltin (TBT). The concentrations DBT plus...

journal_title：Chemosphere

authors： Bhosle NB,Garg A,Jadhav S,Harjee R,Sawant SS,Venkat K,Anil AC

更新日期：2004-11-01 00:00:00

abstract：:After oxidation, abrasion and crushing, microplastics (MPs) can enter the aqueous environment and may adsorb surrounding organic pollutants, altering its migration and spatial distribution. Therefore, an investigation of the sorption properties and mechanism of organic pollutant on MPs can offer a theoretical basis fo...

journal_title：Chemosphere

authors： Guo X,Pang J,Chen S,Jia H

更新日期：2018-10-01 00:00:00

abstract：:Using chemical inhibitors to reduce soil nitrification decreases emissions of environmental damaging nitrate and nitrous oxide and improves nitrogen use efficiency in agricultural systems. The efficacy of nitrification inhibitors such as dicyandiamide (DCD) is limited in soil due to biodegradation. This study investig...

journal_title：Chemosphere

authors： Minet EP,O'Carroll C,Rooney D,Breslin C,McCarthy CP,Gallagher L,Richards KG

更新日期：2013-11-01 00:00:00

abstract：:The environmental toxicity of tetracycline antibiotics to aquatic organisms has attracted increasing attention. The adverse impacts of tetracycline antibiotics on ciliates should be detailed considering the significant roles of protozoa in the microfood web in the soils and other eco-systems. This study for the first ...

journal_title：Chemosphere

authors： Wang L,Chen Y,Zhao Y,Du M,Wang Y,Fan J,Ren N,Lee DJ

更新日期：2020-09-01 00:00:00