Effect of the alkyl chain length on the anaerobic biodegradability and toxicity of quaternary ammonium based surfactants.

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：:In the present study, a facile method was used to synthesize the ruthenium and ruthenium oxide (RuO2) nanoparticles (NPs) derived from three different metallosurfactants. Firstly, three metallosurfactants were fabricated i.e. RuCTAC (Bishexadecyltrimethylammonium ruthenium tetrachloride), RuDDA (Bisdodecylamine ruthen...

journal_title：Chemosphere

authors： Dogra V,Kaur G,Kumar R,Kumar S

更新日期：2020-10-19 00:00:00

abstract：:Soil sorption coefficients (K(OC)) of 185 non-ionic organic heterogeneous pesticides have been studied searching for quantitative structure-property relationships (QSPRs). The chemical description of pesticide structure has been made in terms of some molecular descriptors: count descriptors, topological indices, infor...

journal_title：Chemosphere

authors： Gramatica P,Corradi M,Consonni V

更新日期：2000-09-01 00:00:00

abstract：:Brominated flame retardants (BFRs) are widely used as additives in plastics, textiles and electronics materials. Here, we investigated the photodegradation of four BFRs including decabromobiphenylether (BDE-209), tetrabromobipsphenol A (TBBPA), tetrabromobisphenol A-bis(2,3-dibromopropylether) (TBBPA-DBPE) and tetrabr...

journal_title：Chemosphere

authors： Khaled A,Richard C,Rivaton A,Jaber F,Sleiman M

更新日期：2018-11-01 00:00:00

abstract：:In this study, the potential applicability of potassium permanganate (Mn(VII)) for anilines elimination was systematically investigated firstly, with a focus on the effect of manganese intermediates on the kinetics of anilines versus phenols. It was found that Mn(VII) could fairly oxidize anilines, where the second-or...

journal_title：Chemosphere

authors： Pang SY,Duan JB,Zhou Y,Gao Y,Jiang J

更新日期：2019-11-01 00:00:00

abstract：:The present study aimed to investigate the adsorption of dyes onto activated carbon cloths. Kinetics and isotherms were studied based on results of batch reactors to constitute databases for the adsorption rates and capacities of 22 commercial dyes. Added to a qualitative analysis of experimental results, quantitative...

journal_title：Chemosphere

authors： Metivier-Pignon H,Faur C,Le Cloirec P

更新日期：2007-01-01 00:00:00

abstract：:This study investigated two possible strategies, increasing ammonia oxidation activity and bioaugmenting with triclosan-degrader Sphingopyxis strain KCY1, to enhance triclosan removal in nitrifying activated sludge (NAS). Triclosan (2 mg L(-1)) was removed within 96-h in NAS bioreactors amended with 5, 25 and 75 mg L(...

journal_title：Chemosphere

authors： Lee DG,Cho KC,Chu KH

更新日期：2015-04-01 00:00:00

abstract：:In this study, computational and statistical models were applied to optimize the inherent parameters of an electrochemical decontamination of synozol red. The effect of various experimental variables such as current density, initial pH and concentration of electrolyte on degradation were assessed at Ti/RuO0·3TiO0·7O2 ...

journal_title：Chemosphere

authors： Khan SU,Khan H,Anwar S,Khan S,Boldrin Zanoni MV,Hussain S

更新日期：2020-08-01 00:00:00

abstract：:Organic sediments are known to be a significant sink of inorganic elements in polluted freshwater ecosystems. Hence, we investigated the role of invertebrate shredders (the freshwater shrimp Gammarus pulex L.) in metal and arsenic enrichment into organic partitions of sediments in a wetland stream at former uranium mi...

journal_title：Chemosphere

authors： Schaller J,Weiske A,Mkandawire M,Dudel EG

更新日期：2010-03-01 00:00:00

abstract：:We describe a novel method for efficiently removing glyphosate from aqueous media via adsorption onto highly functionalized star-shaped polymeric particles. These particles have a polystyrene core with more than 35 attached methacrylate polymer arms, each containing a plurality of pendant amines (poly(dimethylamino et...

journal_title：Chemosphere

authors： Samuel L,Wang R,Dubois G,Allen R,Wojtecki R,La YH

更新日期：2017-02-01 00:00:00

abstract：:Hexavalent chromium is a priority pollutant in many countries. Reduction of Cr(VI) to Cr(III) is desirable as the latter specie is an essential nutrient for maintaining normal physiological function and also has a low mobility and bioavailability. A variety of naturally-occurring organic molecules (containing alpha-hy...

journal_title：Chemosphere

authors： Rivero-Huguet M,Marshall WD

更新日期：2009-08-01 00:00:00

abstract：:Contamination of surface waters by pesticides continues to be the focus of concern for water authorities due to the growing evidence of their deleterious effects on aquatic life. In this context, the present work investigates the occurrence of 16 selected pesticides belonging to the classes of triazines, phenylureas, ...

journal_title：Chemosphere

authors： Köck-Schulmeyer M,Ginebreda A,González S,Cortina JL,de Alda ML,Barceló D

更新日期：2012-01-01 00:00:00

abstract：:The present work investigated the direct and indirect photolysis of pesticide residues (atrazine, imazaquin, iprodione), in aqueous solutions and under UV-visible radiation (280-480nm). Different kinds of humic substances (HS) were added to samples in order to evaluate their behaviour as possible photocatalysts and th...

journal_title：Chemosphere

authors： Garbin JR,Milori DM,Simões ML,da Silva WT,Neto LM

更新日期：2007-01-01 00:00:00

abstract：:The aim of this study was to obtain information about the degradation of t-butyl methyl ether (MTBE; (CH(3))(3)C-O-CH(3)) in atmospheric water droplets (rain, clouds, fog). These water droplets contain hydrogen peroxide and iron ions, which are a source of the powerful oxidising radical OH degrees, particularly under ...

journal_title：Chemosphere

authors： Guillard C,Charton N,Pichat P

更新日期：2003-11-01 00:00:00

abstract：:The concentrations of total gaseous mercury (TGM) and its relevant environmental parameters were measured at a highly industrialized area in the Ban Wall industrial complex (BWIC) in An San city, Korea from March to May 2005. The mean concentrations of Hg measured during the entire study period were computed to be 6.3...

journal_title：Chemosphere

authors： Nguyen HT,Kim KH,Kim MY,Kang CH,Shim SG

更新日期：2008-05-01 00:00:00

abstract：:Understanding on the bioaccumulation and depuration of PAHs (polycyclic aromatic hydrocarbons) in Penaeus monodon is important in seafood safety because it is one of the most popular seafood consumed worldwide. In this study, we used anthracene as the precursor compound for PAHs accumulation and depuration in the shri...

journal_title：Chemosphere

authors： Ong PT,Yong JC,Chin KY,Hii YS

更新日期：2011-07-01 00:00:00

abstract：:There is growing concern regarding human dietary exposure to arsenic (As) via consumption of rice. The concentration and speciation of As in rice are highly variable, and models describing rice As speciation as a function of environmental covariates remain elusive. We conducted a survey of paddy rice and soil in the M...

journal_title：Chemosphere

authors： Reid MC,Asta MP,Falk L,Maguffin SC,Cong Pham VH,Le HA,Bernier-Latmani R,Le Vo P

更新日期：2021-02-01 00:00:00

abstract：:Human exposure to insoluble and soluble nickel compounds is extensive. Besides wide usage in many industries, nickel compounds are contained in cigarette smoke and, in low levels, in ambient particulate matter. Soluble nickel particulate, especially nickel sulfate (NiSO(4)), has been associated with acute lung injury....

journal_title：Chemosphere

authors： Prows DR,McDowell SA,Aronow BJ,Leikauf GD

更新日期：2003-06-01 00:00:00

abstract：:The gas-phase photooxidations of CCl(4), CHCl(3), CH(2)Cl(2) and their binary mixtures in an O(2) stream were studied in a flow reactor under various experimental conditions using a low-pressure mercury lamp as light source covered with a high-purity silica sleeve being used. The 184.9 nm VUV irradiation emitted is re...

journal_title：Chemosphere

authors： Alapi T,Dombi A

更新日期：2007-03-01 00:00:00

abstract：:Ability of hexavalent chromium to accumulate and induce oxidative stress has been studied in the gills of Ctenopharyngodon idellus, with the resulting damage in the form of altered endogenous antioxidant enzyme activity and, histopathology in the tissue. The fish were exposed to 5.3 (C1) and 10.63 mg/L (C2) of hexaval...

journal_title：Chemosphere

authors： Jindal R,Handa K

更新日期：2019-09-01 00:00:00

abstract：:In this study, 90 human breast milk samples collected from Japan, Korea, and China were analyzed for perfluorooctanoic acid (PFOA) (C8), perfluorononanoic acid (PFNA) (C9), perfluorodecanoic acid (PFDA) (C10), perfluoroundecanoic acid (PFUnDA) (C11), perfluorododecanoic acid (PFDoDA) (C12), and perfluorotridecanoic ac...

journal_title：Chemosphere

authors： Fujii Y,Yan J,Harada KH,Hitomi T,Yang H,Wang P,Koizumi A

更新日期：2012-01-01 00:00:00

abstract：:The ubiquity of environmental pollution by endocrine disrupting chemicals (EDCs) such as bisphenol A (BPA) is progressively considered as a major threat to aquatic ecosystems worldwide. Numerous toxicological studies have proved that BPA are hazardous to aquatic environment, along with alterations in the development a...

journal_title：Chemosphere

authors： Li X,Guo JY,Li X,Zhou HJ,Zhang SH,Liu XD,Chen DY,Fang YC,Feng XZ

更新日期：2017-02-01 00:00:00

abstract：:Recently, several studies showed that microcystin-LR (MCLR) can accumulate and induce toxicity in kidney. However, the exact mechanism is unknown. The aim of this study was to explore the mechanism of MCLR-induced nephrotoxicity. To this end, adult zebrafish were exposed to MCLR (0, 1, 5 and 25 μg/L) for 60 days. Expo...

journal_title：Chemosphere

authors： Wang Z,Li G,Wu Q,Liu C,Shen J,Yan W

更新日期：2019-01-01 00:00:00

abstract：:Carbon-coated TiO(2) modified by iron, were prepared from TiO(2) of anatase structure and PET modified by FeC(2)O(4). Catalysts were prepared by mixing powders of TiO(2) and modified PET and heating at different temperatures, from 400 to 800 degrees C under flow of Ar gas. High adsorption of phenol was observed on the...

journal_title：Chemosphere

authors： Tryba B,Toyoda M,Morawski AW,Inagaki M

更新日期：2005-07-01 00:00:00

abstract：:The recoveries of twenty-two organochlorine pesticides spiked in egg samples were extracted by supercritical fluid extraction (SFE) using carbon dioxide and solvent extraction using acetonitrile were compared. The extracts were cleaned up with C18 and Florisil SPE columns. At 0.1 ppm spike level, the recoveries were 5...

journal_title：Chemosphere

authors： Wigfield YY,Selwyn J,Khan S,McDowell R

更新日期：1996-03-01 00:00:00

abstract：:Mechanical soil aeration has long been regarded as an effective ex-situ remediation technique and as suitable for remediation of large-scale sites contaminated by volatile organic compounds (VOCs) at low cost. However, it has been reported that the removal efficiency of VOCs from soil is relatively low in the late sta...

journal_title：Chemosphere

authors： Ma Y,Du X,Shi Y,Xu Z,Fang J,Li Z,Li F

更新日期：2015-02-01 00:00:00

abstract：:The study was carried out to evaluate enzyme activities and histopathological changes due to the effect of acute and chronic definitive toxicity of selenium (Se) on the post larvae (PL) of giant tiger shrimp (Penaeus monodon), and green mussel (Perna viridis). The 96-h Median Lethal concentration (LC50) for the PL of ...

journal_title：Chemosphere

authors： Nagarjuna A,Karthikeyan P,Mohan D,Rudragouda Marigoudar S

更新日期：2018-05-01 00:00:00

abstract：:The occurrence and transformation behaviors of disinfection byproducts (DBPs) were investigated in the finished water and tap water of 14 water treatment plants in rural areas of eastern China. Mammalian cell toxicity data from previous studies were used to evaluate the cytotoxicity of trihalomethanes (THMs), haloacet...

journal_title：Chemosphere

authors： Yu Y,Ma X,Chen R,Li G,Tao H,Shi B

更新日期：2019-08-01 00:00:00

abstract：:Trace metals have the potential to associate with sediments that have been recognised as significant source of contamination for the benthic environment. The current study aims assessing the trace metals contamination level in sediments from Dakar coast and Saint Louis estuary, and to examine their bioavailability to ...

journal_title：Chemosphere

authors： Diop C,Dewaelé D,Cazier F,Diouf A,Ouddane B

更新日期：2015-11-01 00:00:00

abstract：:Two models (the Positive Matrix Factorization (PMF) model and a photochemical box model with Master Chemical Mechanism (PBM-MCM)) were applied to analyze the formaldehyde (HCHO) data collected in July 2006 at an urban site (GPEMC) in the Pearl River Delta (PRD), southern China. Three major HCHO sources (secondary form...

journal_title：Chemosphere

authors： Ling ZH,Zhao J,Fan SJ,Wang XM

更新日期：2017-02-01 00:00:00