PubAg

Main content area

You searched for: Journal Chemosphere Remove constraint Journal: Chemosphere Publication Year 2018 Remove constraint Publication Year: 2018 Source 2018 v.206 Remove constraint Source: 2018 v.206
Start Over

Search

89  Search Results

« Previous | 1 - 50 of 89 |
Number of results to display per page

Search Results

1. Accumulation, elimination and neuro-oxidative damage under lanthanum exposure in glass eels (Anguilla anguilla)

Author:
Figueiredo, Cátia; Grilo, Tiago F.; Lopes, Clara; Brito, Pedro; Diniz, Mário; Caetano, Miguel; Rosa, Rui; Raimundo, Joana
Source:
Chemosphere 2018 v.206 pp. 414-423
ISSN:
0045-6535
Subject:
Anguilla anguilla; acetylcholine; acetylcholinesterase; animal organs; aquatic ecosystems; catalase; conservation status; eel; environmental technology; enzyme activity; free radical scavengers; glutathione transferase; head; lanthanum; lipid peroxidation; lutetium; neurotoxicity; scandium; yttrium
Abstract:
... Rare earth elements (REEs) comprise elements from lanthanum to lutetium that together with yttrium and scandium are emergent contaminants of critical importance for numerous groundbreaking environmental technologies. Transfer to aquatic ecosystems is expected to increase, however, little information is known about their potential impacts in marine biota. Considering the endangered conservation sta ...
DOI:
10.1016/j.chemosphere.2018.05.029

2. Adsorption and precipitation of cadmium affected by chemical form and addition rate of phosphate in soils having different levels of cadmium

Author:
Lee, Hyun Ho; Owens, Vance N.; Park, Sungkyun; Kim, Jiwoong; Hong, Chang Oh
Source:
Chemosphere 2018 v.206 pp. 369-375
ISSN:
0045-6535
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; adsorption; arable soils; cadmium; dipotassium hydrogen phosphate; minerals; models; potassium dihydrogen phosphate
Abstract:
... Although a number of studies have examined cadmium (Cd) immobilization by phosphate (P) in soils, determining the exact mechanism of Cd immobilization in various conditions, including P chemical form, P rate, and inherent Cd concentrations in soil has not been examined. The objective of this study was to determine changes in Cd immobilization through adsorption and precipitation in different condi ...
DOI:
10.1016/j.chemosphere.2018.04.176

3. A 2D tank test on remediation of nitrobenzene-contaminated aquifer using in-situ reactive zone with emulsified nanoscale zero-valent iron

Author:
Dong, Jun; Dong, Yang; Wen, Chunyu; Gao, Song; Ren, Liming; Bao, Qiburi
Source:
Chemosphere 2018 v.206 pp. 766-776
ISSN:
0045-6535
Subject:
acetates; aniline; aquifers; bicarbonates; durability; electrons; groundwater; groundwater contamination; iron; nitrates; nitrobenzenes; oils; organic acids and salts; oxidation; pH; pollutants; remediation; sulfates
Abstract:
... Nitrobenzene (NB) is one of the most challenging pollutants for groundwater remediation due to its great harm and recalcitrance. Emulsified nanoscale zero-valent iron (EZVI) is considered as a promising agent for in-situ remediation of contaminated groundwater for its high reactivity, good durability and low cost. In this paper, 2D tank experiment was conducted to evaluate the effectiveness of enh ...
DOI:
10.1016/j.chemosphere.2018.05.067

4. Advances in understanding the response of fish to linear alcohols in the environment

Author:
Belanger, Scott E.; Rawlings, Jane M.; Stackhouse, Ricky
Source:
Chemosphere 2018 v.206 pp. 539-548
ISSN:
0045-6535
Subject:
Danio rerio; Daphnia magna; Pimephales promelas; acute toxicity; carbon; chronic toxicity; ecotoxicology; embryo (animal); environmental assessment; environmental exposure; environmental hazards; ethanol; fish; hydrophobic bonding; hydrophobicity; juveniles; lethal concentration 50; quantitative structure-activity relationships; risk assessment; solubility
Abstract:
... Short to long chain alcohols have a range of ecotoxicity to aquatic life driven by hydrophobic interactions with biological membranes. Carbon chain length and octanol:water partitioning coefficients are surrogates for hydrophobicity and strongly relate to aquatic toxicity. In these investigations, the toxicity of ethanol to 1-n-dodecanol to juvenile fish in standard acute toxicity tests is reviewe ...
DOI:
10.1016/j.chemosphere.2018.04.152

5. Aging effect of minerals on biochar properties and sorption capacities for atrazine and phenanthrene

Author:
Ren, Xinhao; Wang, Fei; Zhang, Peng; Guo, Junkang; Sun, Hongwen
Source:
Chemosphere 2018 v.206 pp. 51-58
ISSN:
0045-6535
Subject:
atrazine; biochar; elemental composition; hydrophilicity; minerals; phenanthrenes; pig manure; soil minerals; sorption; surface area; temperature
Abstract:
... Biochars that were produced from pig manure at two different temperatures were incubated with three different minerals to examine the effects of soil minerals on biochar properties and sorption capacities. Biochars freshly mixed with minerals showed dramatic decreases in the sorption of atrazine (maximum decrease by 70.9% at Ce = 0.5 Sw) and phenanthrene (maximum decrease by 69.5% at Ce = 0.5 Sw) ...
DOI:
10.1016/j.chemosphere.2018.04.125

6. An effective and low cost carbon based clean-up method for PCDD/Fs and PCBs analysis in food

Author:
Kedikoglou, Kleopatra; Costopoulou, Danae; Vassiliadou, Irene; Bakeas, Evangelos; Leondiadis, Leondios
Source:
Chemosphere 2018 v.206 pp. 531-538
ISSN:
0045-6535
Subject:
European Union; automation; carbon; chromatography; farmed fish; lipids; monitoring; olive oil; polychlorinated biphenyls; polychlorinated dibenzodioxins; polychlorinated dibenzofurans; solvents; sorbents
Abstract:
... Sample preparation is of critical importance in dioxin analysis of food and feed samples. It is a complex procedure that includes lipid extraction followed by the application of chromatographic separation techniques, aiming in removing undesirable interferences from the matrix. The separation of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) from polychlorinate ...
DOI:
10.1016/j.chemosphere.2018.05.038

7. An experimental and theoretical study of the adsorption removal of toluene and chlorobenzene on coconut shell derived carbon

Author:
Zhao, Xiaoyan; Zeng, Xiaolan; Qin, Yu; Li, Xiang; Zhu, Tianle; Tang, Xiaolong
Source:
Chemosphere 2018 v.206 pp. 285-292
ISSN:
0045-6535
Subject:
Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray photoelectron spectroscopy; activated carbon; adsorbents; adsorption; chlorobenzene; coconuts; micropores; moieties; porosity; sorption isotherms; texture; thermodynamic models; toluene; volatile organic compounds
Abstract:
... The adsorption performance of toluene and chlorobenzene on prepared coconut shell derived carbon (CDC) is investigated and compared with commercial activated carbon (CAC) by experiment and theory calculation. Textural properties of prepared adsorbents are characterized by N2 adsorption, infrared spectra (FT-IR), Raman spectra and X-ray photoelectron spectra (XPS). Adsorption isotherms of toluene a ...
DOI:
10.1016/j.chemosphere.2018.04.126

8. A novel use of Moringa oleifera seed powder in enhancing the primary treatment of paper mill effluent

Author:
Boulaadjoul, Soumia; Zemmouri, Hassiba; Bendjama, Zoubida; Drouiche, Nadjib
Source:
Chemosphere 2018 v.206 pp. 142-149
ISSN:
0045-6535
Subject:
Moringa oleifera; alum; aluminum sulfate; biodegradability; chemical oxygen demand; coagulants; coagulation; pH; paper; pulp and paper mill effluents; seeds; turbidity; Algeria
Abstract:
... In this study, Moringa oleifera (M. oleifera) performance as an eco-friendly coagulant in the enhanced primary treatment of paper mill effluent was investigated. Its performance in terms of turbidity removal and COD abatement was examined. Local M. oleifera seed powder from ADRAR-city, South of Algeria, was used. Conventional jar tests were conducted for enhancing the primary treatment of paper mi ...
DOI:
10.1016/j.chemosphere.2018.04.123

9. Antibiotic resistance in urban and hospital wastewaters and their impact on a receiving freshwater ecosystem

Author:
Lorenzo, Proia; Adriana, Anzil; Jessica, Subirats; Carles, Borrego; Marinella, Farrè; Marta, Llorca; Luis, Balcázar Jose; Pierre, Servais
Source:
Chemosphere 2018 v.206 pp. 70-82
ISSN:
0045-6535
Subject:
Escherichia coli; amoxicillin; antibiotic resistance; antibiotic resistance genes; bacterial communities; effluents; fecal bacteria; freshwater ecosystems; hospitals; nalidixic acid; rivers; sulfamethoxazole; urban areas; wastewater; wastewater treatment; Belgium
Abstract:
... The main objective of this study was to investigate the antibiotic resistance (AR) levels in wastewater (WW) and the impact on the receiving river. Samples were collected once per season over one year in the WW of a hospital, in the raw and treated WW of two wastewater treatment plants (WWTPs), as well as upstream and downstream from the release of WWTPs effluents into the Zenne River (Belgium). C ...
DOI:
10.1016/j.chemosphere.2018.04.163

10. Application of indices to evaluate LID facilities for sediment and heavy metal removal

Author:
Gurung, Sher Bahadur; Geronimo, Franz Kevin; Hong, Jungsun; Kim, Lee-Hyung
Source:
Chemosphere 2018 v.206 pp. 693-700
ISSN:
0045-6535
Subject:
cadmium; decision making; decision support systems; heavy metals; humans; lead; nickel; particle size; plants (botany); risk; sediments; streams; surface water; toxicity; urban areas; urban runoff; watersheds
Abstract:
... Heavy metal and sediments transported from the urban catchment are the prime interest among researchers these days due to its toxic behaviour and hazardous effect on the animals, plants and human. The inflow from urban catchments and outflow from the Low impact development technologies (LID) were evaluated using different types of indices. Indices like fd, fp and Kd showed that heavy metals like P ...
DOI:
10.1016/j.chemosphere.2018.05.077

11. A review of the impacts of tobacco heating system on indoor air quality versus conventional pollution sources

Author:
Kaunelienė, Violeta; Meišutovič-Akhtarieva, Marija; Martuzevičius, Dainius
Source:
Chemosphere 2018 v.206 pp. 568-578
ISSN:
0045-6535
Subject:
Culicidae; acetaldehyde; aerosols; air pollutants; air pollution; air quality; benzene; cigarettes; electronic equipment; epidemiological studies; formaldehyde; heating systems; markets; nicotine; particulates; toluene
Abstract:
... With the introduction of novel and potentially less polluting nicotine containing products to the market, the impacts of their usage to indoor air quality as opposed to conventional pollution sources must be reviewed and considered. This review study aimed to comparatively analyse changes in indoor air quality as the consequence of tobacco heating system (THS) generated pollution against general i ...
DOI:
10.1016/j.chemosphere.2018.05.039

12. Arsenic removal by As-hyperaccumulator Pteris vittata from two contaminated soils: A 5-year study

Author:
da Silva, Evandro B.; Lessl, Jason T.; Wilkie, Ann C.; Liu, Xue; Liu, Yungen; Ma, Lena Q.
Source:
Chemosphere 2018 v.206 pp. 736-741
ISSN:
0045-6535
Subject:
Pteris vittata; arsenic; biomass production; phosphorus fertilizers; polluted soils; rock phosphate; soil separates; solubilization; wood
Abstract:
... The ability of As-hyperaccumulator Pteris vittata to remove As from two contaminated soils (CCA from an As-treated wood facility and DVA from a cattle-dipping vat) over 5 years was investigated for the first time. The goal was to evaluate P. vittata's ability to continuously remove As during 10 harvests and identify how soil As was affected by P. vittata under P-sufficient (P-fertilizer) and P-lim ...
DOI:
10.1016/j.chemosphere.2018.05.055

13. Atrazine-xenobiotic nuclear receptor interactions induce cardiac inflammation and endoplasmic reticulum stress in quail (Coturnix coturnix coturnix)

Author:
Li, Xue-Nan; Zuo, Yu-Zhu; Qin, Lei; Liu, Wei; Li, Yan-Hua; Li, Jin-Long
Source:
Chemosphere 2018 v.206 pp. 549-559
ISSN:
0045-6535
Subject:
Coturnix coturnix; agricultural land; atrazine; cytochrome P-450; cytochrome b; endoplasmic reticulum stress; groundwater; heart; histopathology; homeostasis; inducible nitric oxide synthase; inflammation; interleukin-10; interleukin-6; interleukin-8; metabolism; nitric oxide; quails; receptors; signal transduction; surface water; transcription factor NF-kappa B; tumor necrosis factor-alpha; xenobiotics
Abstract:
... Atrazine (ATR) is one of the most extensively used herbicide that eventually leaches into groundwater and surface water from agricultural areas. Exposure to ATR does harm to the health of human and animals, especially the heart. However, ATR exposure caused cardiotoxicity in bird remains unclear. To evaluate ATR-exerted potential cardiotoxicity in heart, quail were exposed with 0, 50, 250, and 500 ...
DOI:
10.1016/j.chemosphere.2018.05.049

14. Behavior of tetracycline and macrolide antibiotics in activated sludge process and their subsequent removal during sludge reduction by ozone

Author:
Wang, Lu; Ben, Weiwei; Li, Yangang; Liu, Chao; Qiang, Zhimin
Source:
Chemosphere 2018 v.206 pp. 184-191
ISSN:
0045-6535
Subject:
activated sludge; azithromycin; desorption; doxycycline; heat production; hydrophobicity; oxidation; oxytetracycline; ozonation; ozone; pH; wastewater treatment
Abstract:
... Ozonation is a promising means for the reduction of excess sludge in wastewater treatment plants. However, little information is available on the removal of antibiotics during sludge ozonation. Therefore, this study investigated first the behavior of four commonly-used hydrophobic antibiotics, including three tetracyclines (tetracycline, oxytetracycline, and doxycycline) and one macrolide (azithro ...
DOI:
10.1016/j.chemosphere.2018.04.180

15. Biodegradation in seawater of PAH and alkylphenols from produced water of a North Sea platform

Author:
Lofthus, Synnøve; Almås, Inger K.; Evans, Peter; Pelz, Oliver; Brakstad, Odd Gunnar
Source:
Chemosphere 2018 v.206 pp. 465-473
ISSN:
0045-6535
Subject:
alkylphenols; biodegradation; biomarkers; biotransformation; environmental fate; half life; marine environment; oils; phenol; polycyclic aromatic hydrocarbons; risk; seawater; North Sea
Abstract:
... Operational planned discharges of produced water (PW) to the marine environment from offshore oil production installations, contain low concentrations of dispersed oil compounds, like polycyclic aromatic hydrocarbons (PAHs) and alkylated phenols (APs). Biotransformation in natural seawater (SW) of naphthalenes/PAHs and phenol/APs in field-collected PW from a North Sea platform was investigated in ...
DOI:
10.1016/j.chemosphere.2018.05.006

16. Biomineralization mechanism of U(VI) induced by Bacillus cereus 12-2: The role of functional groups and enzymes

Author:
Zhang, Jian; Song, Han; Chen, Zhi; Liu, Shasha; Wei, Yali; Huang, Jingyi; Guo, Chuling; Dang, Zhi; Lin, Zhang
Source:
Chemosphere 2018 v.206 pp. 682-692
ISSN:
0045-6535
Subject:
Bacillus cereus; X-ray diffraction; aerobes; ammonium; anaerobes; biomass; biomineralization; biosorption; electron microscopy; enzyme activity; heavy metals; metabolism; minerals; moieties; molecular weight; pH; phosphates; phosphotransferases (kinases); proteins; uranium
Abstract:
... Current studies reveal that the biomineralization of U(VI) by anaerobes normally produces nano-sized U(IV) minerals that can easily re-migrate/re-oxidize, while the biomineralization of U(VI) by aerobes has been constrained because the general mechanism has not yet been fully characterized. The biomineralization of U(VI) by Bacillus cereus 12-2 was investigated in this work. The maximum biosorptio ...
DOI:
10.1016/j.chemosphere.2018.04.181

17. Carbon composite lignin-based adsorbents for the adsorption of dyes

Author:
Wang, Xiaohong; Jiang, Chenglong; Hou, Bingxia; Wang, Yingying; Hao, Chen; Wu, Jingbo
Source:
Chemosphere 2018 v.206 pp. 587-596
ISSN:
0045-6535
Subject:
adsorbents; adsorption; azo dyes; calcium; carbon; glucose; hot water treatment; lignosulfonates; pH; raw materials; sorption isotherms; temperature; thermodynamics
Abstract:
... Carbon composite lignin-based adsorbent were prepared through hydrothermal method with glucose as carbon source, calcium lignosulfonate and triethylene tetramine as raw materials, respectively. The optimum synthesis conditions were determined by investigating the addition of carbon and triethylene tetramine. The adsorbent was used for the adsorption of azo dyes Congo red and Eriochrome blue black ...
DOI:
10.1016/j.chemosphere.2018.04.183

18. Characterization and coagulation-flocculation performance of a composite flocculant in high-turbidity drinking water treatment

Author:
Xia, Xiang; Lan, Shuhuan; Li, Xudong; Xie, Yifei; Liang, Yajie; Yan, Peihan; Chen, Zhengyang; Xing, Yunxiao
Source:
Chemosphere 2018 v.206 pp. 701-708
ISSN:
0045-6535
Subject:
Klebsiella variicola; adsorption; bacteria; carbon; carbon nitrogen ratio; chemical analysis; culture media; drinking water; ferric chloride; flocculants; flocculation; galactose; neutralization; nitrogen; nucleotide sequences; pH; polysaccharides; response surface methodology; ribosomal RNA; temperature; turbidity; water treatment
Abstract:
... Klebsiella variicola B16, a microbial bioflocculant (MBF-B16)-producing bacteria, was isolated and identified by its 16S rRNA sequence, biochemical properties, and physiological characteristics. The effects of culture conditions on MBF-B16 production, including carbon source, nitrogen source, C/N ratio, initial pH, and culture temperature, were investigated in this study. Results showed that 6.96  ...
DOI:
10.1016/j.chemosphere.2018.04.159

19. Chitin synthesis inhibitors promote liver cancer cell metastasis via interfering with hypoxia-inducible factor 1α

Author:
Ning, Xia; Wang, Yue; Yan, Wei; Li, Guangke; Sang, Nan
Source:
Chemosphere 2018 v.206 pp. 231-237
ISSN:
0045-6535
Subject:
bioassays; cadherins; cell movement; diflubenzuron; dose response; enzyme activity; extracellular matrix; fibronectins; gelatinase A; hormone receptors; human cell lines; humans; hypoxia-inducible factor 1; insecticides; liver neoplasms; luciferase; metastasis; neoplasm cells; phenotype; reporter genes; risk; triflumuron
Abstract:
... Chitin synthesis inhibitors (CSIs), as alternatives to conventional insecticides, have been in worldwide demand in recent years. However, little attention has been paid to the potential ecological safety and health risks of CSIs, especially their abilities to interfere with nonsexual hormone receptors such as hypoxia-inducible factor 1α (HIF-1α). In this work, we conducted a systematic study regar ...
DOI:
10.1016/j.chemosphere.2018.05.014

20. Combination of bioleaching by gross bacterial biosurfactants and flocculation: A potential remediation for the heavy metal contaminated soils

Author:
Yang, Zhihui; Shi, Wei; Yang, Weichun; Liang, Lifen; Yao, Wenbin; Chai, Liyuan; Gao, Shikang; Liao, Qi
Source:
Chemosphere 2018 v.206 pp. 83-91
ISSN:
0045-6535
Subject:
Burkholderia; aluminum chloride; arsenic; bioleaching; biosurfactants; cadmium; copper; cost effectiveness; flocculation; heavy metals; leachates; lead; liquids; manganese; models; polluted soils; remediation; rhamnolipids; wastes; zinc
Abstract:
... Combining bioleaching by the gross biosurfactants of Burkholderia sp. Z-90 and flocculation by poly aluminium chloride (PAC) was proposed to develop a potential environment-friendly and cost-effective technique to remediate the severely contaminated soils by heavy metals. The factors affecting soil bioleaching by the gross biosurfactants of Burkholderia sp. Z-90 were optimized. The results showed ...
DOI:
10.1016/j.chemosphere.2018.04.166

21. Combined toxicity of microcystin-LR and copper on lettuce (Lactuca sativa L.)

Author:
Cao, Qing; Steinman, Alan D.; Wan, Xiang; Xie, Liqiang
Source:
Chemosphere 2018 v.206 pp. 474-482
ISSN:
0045-6535
Subject:
Lactuca sativa; additive effect; bioaccumulation; copper; food chain; germination; human health; lettuce; microcystin-LR; oxidative stress; plant growth; plants (botany); risk; synergism; toxicity
Abstract:
... Microcystins and copper commonly co-exist in the natural environment, but their combined toxicity remains unclear, especially in terrestrial plants. The present study investigated the toxicity effects of microcystin-LR (0, 5, 50, 500, 1000 μg L⁻¹) and copper (0, 50, 500, 1000, 2000 μg L⁻¹), both individually and in mixture, on the germination, growth and oxidative response of lettuce. The bioaccum ...
DOI:
10.1016/j.chemosphere.2018.05.051

22. Copper (II) and/or arsenite-induced oxidative stress cascades apoptosis and autophagy in the skeletal muscles of chicken

Author:
Wang, Yu; Zhao, Hongjing; Shao, Yizhi; Liu, Juanjuan; Li, Jinglun; Luo, Liyang; Xing, Mingwei
Source:
Chemosphere 2018 v.206 pp. 597-605
ISSN:
0045-6535
Subject:
B-lymphocytes; apoptosis; arsenic; arsenites; autophagy; breeding sites; caspases; chickens; copper; copper sulfate; cross contamination; genes; homeostasis; livestock breeding; messenger RNA; mitochondria; muscles; oxidative toxicity; protein synthesis; skeletal muscle; toxicity
Abstract:
... Arsenic (As) is a ubiquitous environmental toxin and robust inducer of oxidative stress (OxS). Copper (Cu) is an essential microelement, which participates in OxS as a cofactor for certain enzymes, with narrow optimal range between essential and toxic concentrations. However, their effects are rarely studied in chicken skeletal muscles, which have soaring per capita consumption andare susceptible ...
DOI:
10.1016/j.chemosphere.2018.05.013

23. Copper oxide nanoparticles and arsenic interact to alter seedling growth of rice (Oryza sativa japonica)

Author:
Liu, Jing; Dhungana, Birendra; Cobb, George P.
Source:
Chemosphere 2018 v.206 pp. 330-337
ISSN:
0045-6535
Subject:
Oryza sativa; arsenic; copper metabolism; crop production; cupric oxide; human health; nanoparticles; phytotoxicity; rice; roots; sand; seed germination; seedling growth; seedlings; shoots
Abstract:
... Arsenic (As) causes phytotoxicity to rice plants, decreases rice production and causes serious human health concerns due to rice consumption. Additional stresses may be posed to rice plants due to the increasing release into the environment by the expanding production and application of copper oxide nanoparticles (nCuO). The influence of nCuO on As uptake in and effects on rice (Oryza sativa japon ...
DOI:
10.1016/j.chemosphere.2018.05.021

24. Degradation of aniline by electrochemical activation of peroxydisulfate at MWCNT cathode: The proofed concept of nonradical oxidation process

Author:
Nie, Chunyang; Ao, Zhimin; Duan, Xiaoguang; Wang, Chengying; Wang, Shaobin; An, Taicheng
Source:
Chemosphere 2018 v.206 pp. 432-438
ISSN:
0045-6535
Subject:
aniline; aqueous solutions; carbon nanotubes; cathodes; chlorides; electric power; electrochemistry; energy conservation; ions; oxidation; pollutants; synergism; wastewater
Abstract:
... Enhanced elimination of aniline in aqueous solution was achieved by coupling electrosorption of aniline and electrochemical activation of peroxydisulfate (PDS) at multi-walled carbon nanotube (MWCNT) cathode, in which a synergistic effect occurred. It was found that PDS could be effectively activated under a small voltage at MWCNT cathode owing to the specific pore structures of MWCNTs. A nonradic ...
DOI:
10.1016/j.chemosphere.2018.04.173

25. Degradation of ciprofloxacin antibiotic by Homogeneous Fenton oxidation: Hybrid AHP-PROMETHEE method, optimization, biodegradability improvement and identification of oxidized by-products

Author:
Salari, Marjan; Rakhshandehroo, Gholam Reza; Nikoo, Mohammad Reza
Source:
Chemosphere 2018 v.206 pp. 157-167
ISSN:
0045-6535
Subject:
antibiotics; biodegradability; byproducts; catalysts; chemical oxygen demand; ciprofloxacin; decision making; ferrous chloride; high performance liquid chromatography; hydrogen peroxide; hydroxylation; iron; mass spectrometry; models; oxidation; pH; piperazine; response surface methodology; sludge; wastewater
Abstract:
... The main purpose of this experimental study was to optimize Homogeneous Fenton oxidation (HFO) and identification of oxidized by-products from degradation of Ciprofloxacin (CIP) using hybrid AHP-PROMETHEE, Response Surface Methodology (RSM) and High Performance Liquid Chromatography coupled with Mass Spectrometry (HPLC–MS). At the first step, an assessment was made for performances of two catalyst ...
DOI:
10.1016/j.chemosphere.2018.04.086

26. Degradation of hydraulic fracturing additive 2-butoxyethanol using heat activated persulfate in the presence of shale rock

Author:
Manz, Katherine E.; Carter, Kimberly E.
Source:
Chemosphere 2018 v.206 pp. 398-404
ISSN:
0045-6535
Subject:
heat; hydraulic fracturing; iron; minerals; natural gas; oxidants; oxidation; pH; shale; sodium; surfactants; temperature; water quality
Abstract:
... Changes in fluid composition during hydraulic fracturing (HF) for natural gas production can impact well productivity and the water quality of the fluids returning to the surface during productivity. Shale formation conditions can influence the extent of fluid transformation. Oxidizers, such as sodium persulfate, likely play a strong role in fluid transformation. This study investigates the oxidat ...
DOI:
10.1016/j.chemosphere.2018.05.007

27. Design and synthesis of core–shell Fe3O4@PTMT composite magnetic microspheres for adsorption of heavy metals from high salinity wastewater

Author:
Huang, Xin; Yang, Jinyue; Wang, Jingkang; Bi, Jingtao; Xie, Chuang; Hao, Hongxun
Source:
Chemosphere 2018 v.206 pp. 513-521
ISSN:
0045-6535
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; adsorption; aqueous solutions; cadmium; coal; heavy metals; lead; magnetic fields; mercury; microparticles; models; nanocomposites; nanoparticles; polymers; salinity; scanning electron microscopy; sorption isotherms; thermodynamics; transmission electron microscopy; wastewater
Abstract:
... In this study, a novel magnetic nanoparticles (MNP) modified by an organodisulfide polymer (PTMT) was designed for adsorption of heavy metals (Hg(II), Pb(II) and Cd(II)) from simulated coal chemical high salinity wastewater. The MNP-PTMT nano-composite was synthesize and characterized by SEM, TEM, FTIR, BET, VSM, TGA and XRD. The results indicate that the wanted MNP-PTMT magnetic nanoparticles wer ...
DOI:
10.1016/j.chemosphere.2018.04.184

28. Development of carbon adsorbents with high surface acidity and basicity from polyhydric alcohols with phosphoric acid activation for Ni(II) removal

Author:
Wu, Haiming; Li, Ziyang; Liu, Hai
Source:
Chemosphere 2018 v.206 pp. 115-121
ISSN:
0045-6535
Subject:
acidity; activated carbon; adsorbents; adsorption; erythritol; glycerol; inositols; lignocellulose; mannitol; moieties; nickel; phosphates; phosphoric acid; surface area; temperature; thermal properties; volatilization; xylitol
Abstract:
... In this study, polyhydric alcohols, including glycerol, erythritol, xylitol, mannitol, and inositol, were chosen as carbon precursors for preparation of carbon adsorbents via phosphoric acid activation. The thermal behaviors of phosphoric acid-treated polyhydric alcohols revealed the formation and decomposition of organic phosphates at low temperatures, which enhanced the creation of functional gr ...
DOI:
10.1016/j.chemosphere.2018.04.165

29. Disruption of ergosterol and tryptophan biosynthesis, as well as cell wall integrity pathway and the intracellular pH homeostasis, lead to mono-(2-ethylhexyl)-phthalate toxicity in budding yeast

Author:
Jiang, Linghuo; Wang, Litong; Fang, Tianshu; Papadopoulos, Vassilios
Source:
Chemosphere 2018 v.206 pp. 643-654
ISSN:
0045-6535
Subject:
Saccharomyces cerevisiae; biochemical pathways; biosynthesis; cell walls; endocrine-disrupting chemicals; ergosterol; gene deletion; genes; homeostasis; humans; metabolites; models; mutants; pH; plasticizers; protein transport; reproduction; toxicity; tryptophan; yeasts
Abstract:
... Endocrine disrupting chemicals (EDCs) are substances in the environment, food, and consumer products that interfere with hormone homeostasis, metabolism or reproduction in humans and animals. One such EDC, the plasticizer di-(2-ethylhexyl)-phthalate (DEHP), exerts its function through its principal bioactive metabolite, mono-(2-ethylhexyl)-phthalate (MEHP). To fully understand the effects of MEHP ...
DOI:
10.1016/j.chemosphere.2018.05.069

30. Dual element (CCl) isotope approach to distinguish abiotic reactions of chlorinated methanes by Fe(0) and by Fe(II) on iron minerals at neutral and alkaline pH

Author:
Rodríguez-Fernández, Diana; Heckel, Benjamin; Torrentó, Clara; Meyer, Armin; Elsner, Martin; Hunkeler, Daniel; Soler, Albert; Rosell, Mònica; Domènech, Cristina
Source:
Chemosphere 2018 v.206 pp. 447-456
ISSN:
0045-6535
Subject:
alkaline hydrolysis; carbon disulfide; carbon tetrachloride; chloroform; ferrous chloride; iron; isotope fractionation; isotopes; magnetite; monitoring; pH; pyrite; remediation
Abstract:
... A dual element CCl isotopic study was performed for assessing chlorinated methanes (CMs) abiotic transformation reactions mediated by iron minerals and Fe(0) to further distinguish them in natural attenuation monitoring or when applying remediation strategies in polluted sites. Isotope fractionation was investigated during carbon tetrachloride (CT) and chloroform (CF) degradation in anoxic batch e ...
DOI:
10.1016/j.chemosphere.2018.05.036

31. Dual role of layered double hydroxide nanocomposites on antibacterial activity and degradation of tetracycline and oxytetracyline

Author:
Bouaziz, Zaineb; Soussan, Laurence; Janot, Jean-Marc; Jaber, Maguy; Ben Haj Amara, Abdesslem; Balme, Sebastien
Source:
Chemosphere 2018 v.206 pp. 175-183
ISSN:
0045-6535
Subject:
Escherichia coli; Staphylococcus epidermidis; antibacterial properties; coprecipitation; decontamination; drugs; nanocomposites; oxytetracycline; ultraviolet radiation
Abstract:
... The antibiotic intercalation inside the layered double hydroxide (LDH) layers was usually considered for water decontamination but rarely for drug delivery. Here, tetracycline (TCH) and oxytetracycline (OXY) were immobilized in Zn2Al-Cl LDH following two methods: co-precipitation and anionic exchange. The interfacial concentration of antibiotic varies from 0.04 to 0.5 depending the method of immob ...
DOI:
10.1016/j.chemosphere.2018.05.003

32. Dynamic model of organic pollutant degradation in three dimensional packed bed electrode reactor

Author:
Pang, Tianting; Wang, Yan; Yang, Hui; Wang, Tianlei; Cai, Wangfeng
Source:
Chemosphere 2018 v.206 pp. 107-114
ISSN:
0045-6535
Subject:
activated carbon; dynamic models; electrodes; electrolytes; pH; phenol; pollutants
Abstract:
... A dynamic model of semi-batch three-dimensional electrode reactor was established based on the limiting current density, Faraday's law, mass balance and a series of assumptions. Semi-batch experiments of phenol degradation were carried out in a three-dimensional electrode reactor packed with activated carbon under different conditions to verify the model. The factors such as the current density, t ...
DOI:
10.1016/j.chemosphere.2018.04.118

33. Ecotoxicity evaluation of natural suspended particles using the microalga, Euglena gracilis

Author:
Xiao, Yao; Zhao, Peng; Yang, Yang; Li, Mei
Source:
Chemosphere 2018 v.206 pp. 802-808
ISSN:
0045-6535
Subject:
DNA damage; Euglena gracilis; adverse effects; ecological restoration; ecotoxicology; filtration; microalgae; models; photosynthesis; pollutants; superoxide dismutase; toxicity
Abstract:
... As vectors for pollutants, suspended particles (SPs) have been studied for many years. However, limited studies have focused on the ecotoxicity of natural SPs. This study examined ecotoxicity of natural SPs isolated from Gonghu Bay and its Ecological Restoration Area (ERA) water samples by Tangential Flow Filtration (TFF) using the microalga Euglena gracilis as a model organism. Effects of SPs on ...
DOI:
10.1016/j.chemosphere.2018.05.061

34. Ecotoxicological effects of the insecticide fipronil in Brazilian native stingless bees Melipona scutellaris (Apidae: Meliponini)

Author:
de Morais, Cássio Resende; Travençolo, Bruno Augusto Nassif; Carvalho, Stephan Malfitano; Beletti, Marcelo Emílio; Vieira Santos, Vanessa Santana; Campos, Carlos Fernando; de Campos Júnior, Edimar Olegário; Pereira, Boscolli Barbosa; Carvalho Naves, Maria Paula; de Rezende, Alexandre Azenha Alves; Spanó, Mário Antônio; Vieira, Carlos Ueira; Bonetti, Ana Maria
Source:
Chemosphere 2018 v.206 pp. 632-642
ISSN:
0045-6535
Subject:
Melipona scutellaris; behavior change; biomarkers; ecotoxicology; fipronil; foraging; heterochromatin; insecticides; locomotion; mushroom bodies; nests; paralysis; pest control; pollinators; stingless bees; topical application; toxicity
Abstract:
... Melipona scutellaris Latreille, 1811 (Hymenoptera, Apidae) is a pollinator of various native and cultivated plants. Because of the expansion of agriculture and the need to ensure pest control, the use of insecticides such as fipronil (FP) has increased. This study aimed to evaluate the effects of sublethal doses of FP insecticide on M. scutellaris at different time intervals (6, 12, and 24 h) afte ...
DOI:
10.1016/j.chemosphere.2018.04.153

35. Effectiveness and mechanism of natural attenuation at a petroleum-hydrocarbon contaminated site

Author:
Lv, Hang; Su, Xiaosi; Wang, Yan; Dai, Zhenxue; Liu, Mingyao
Source:
Chemosphere 2018 v.206 pp. 293-301
ISSN:
0045-6535
Subject:
biodegradation; bioremediation; carbon; carbon dioxide; fractionation; groundwater; groundwater contamination; methane; methane production; petroleum; radionuclides; sequence analysis; soil sampling; stable isotopes; sulfates; sulfur; temporal variation
Abstract:
... This study applied an integrated method for evaluating the effectiveness and mechanism of natural attenuation (NA) of petroleum-hydrocarbon contaminated groundwater. Site groundwater and soil samples were analysed to characterize spatial and temporal variations in petroleum hydrocarbons, geochemical indicators, microbial diversity and isotopes. The results showed that the area of petroleum hydroca ...
DOI:
10.1016/j.chemosphere.2018.04.171

36. Effects of short- and long-term exposure of silver nanoparticles and silver ions to Nitrosomonas europaea biofilms and planktonic cells

Author:
Barker, L.K.; Giska, J.R.; Radniecki, T.S.; Semprini, L.
Source:
Chemosphere 2018 v.206 pp. 606-614
ISSN:
0045-6535
Subject:
Nitrosomonas europaea; ammonia; biofilm; biomass; chronic exposure; enzyme inhibition; ions; models; nanosilver; nitrification; nitrifying bacteria; nitrites; plankton; silver; toxicity; wastewater; wastewater treatment
Abstract:
... The increasing use of silver nanoparticles (AgNPs) in consumer products, and their resulting influx into wastewater, may pose a threat to biological nutrient removal in wastewater treatment plants. Planktonic ammonia-oxidizing bacteria (AOB), which convert ammonia to nitrite in the first step of nitrification, are highly sensitive to AgNPs and their released silver ions (Ag⁺), but the sensitivity ...
DOI:
10.1016/j.chemosphere.2018.05.017

37. Efficient removal of dyes from aqueous solutions using a novel hemoglobin/iron oxide composite

Author:
Essandoh, Matthew; Garcia, Rafael A.
Source:
Chemosphere 2018 v.206 pp. 502-512
ISSN:
0045-6535
Subject:
Fourier transform infrared spectroscopy; adsorption; aqueous solutions; electrostatic interactions; erythrosine; hemoglobin; indigo carmine; iron oxides; isoelectric point; kinetics; magnetic materials; magnetism; particle size; scanning electron microscopy; sorption isotherms; tartrazine; thermal stability; thermogravimetry; toxicity
Abstract:
... Magnetic particles entrapped in different matrices that display high thermal stability, low toxicity, interactive functions at the surface, and high saturation magnetization are of great interest. The objective of this work was to synthesize a novel hemoglobin/iron oxide composite (Hb/Fe3O4) for the removal of different dyes (indigo carmine, naphthol blue black, tartrazine, erythrosine, eriochrome ...
DOI:
10.1016/j.chemosphere.2018.04.182

38. Electrochemical stripping of cotton fabrics dyed with Reactive Black 5 in water and wastewater

Author:
Ma, Xiangjuan; Wang, Xin; Yin, Xiaolin; Kan, Xiangru; Wang, Zeyuan
Source:
Chemosphere 2018 v.206 pp. 17-25
ISSN:
0045-6535
Subject:
Fourier transform infrared spectroscopy; anodes; chlorides; color; cotton fabric; dyes; electrochemistry; freshwater; hydroxyl radicals; ions; oxidation; phenol; pollutants; pyridines; wastewater
Abstract:
... Cotton fabrics dyed with Reactive Black 5 (RB5) was electrochemically stripped using Ti/TiO2-RuO2-IrO2 anode in water, pyridine and phenol solution. The results showed that RB5 dye could be easily stripped from the surface of cotton fabrics through the cleavage of chromophoric group (NN) under the attack of hydroxyl radicals (OH) and active chlorines generated in situ. Efficient stripping performa ...
DOI:
10.1016/j.chemosphere.2018.04.122

39. Enantioselective fractionation of fluoroquinolones in the aqueous environment using chiral liquid chromatography coupled with tandem mass spectrometry

Author:
Castrignanò, Erika; Kannan, Andrew M.; Feil, Edward J.; Kasprzyk-Hordern, Barbara
Source:
Chemosphere 2018 v.206 pp. 376-386
ISSN:
0045-6535
Subject:
active ingredients; antibiotics; ciprofloxacin; drugs; enantioselectivity; flumequine; fractionation; liquid chromatography; liquids; metabolites; microbial communities; monitoring; moxifloxacin; nalidixic acid; norfloxacin; ofloxacin; quantitative analysis; river water; tandem mass spectrometry; toxicity; wastewater; United Kingdom
Abstract:
... This paper aims to examine the multiresidue enantiomeric profiling of (fluoro)quinolones and their metabolites in solid and liquid environmental matrices using chiral HPLC-MS/MS method and a CHIRALCEL® OZ-RH column. Simultaneous chiral separation was obtained for chiral ofloxacin and its main metabolites ofloxacin-N-oxide and desmethyl-ofloxacin; moxifloxacin; the prodrug prulifloxacin and its act ...
DOI:
10.1016/j.chemosphere.2018.05.005

40. Environmental monitoring and risk assessment of organophosphate pesticides in aquatic ecosystems of north-west Bangladesh

Author:
Sumon, Kizar Ahmed; Rashid, Harunur; Peeters, Edwin T.H.M.; Bosma, Roel H.; Van den Brink, Paul J.
Source:
Chemosphere 2018 v.206 pp. 92-100
ISSN:
0045-6535
Subject:
Rotifera; algae; aquatic ecosystems; aquatic environment; aquatic insects; chlorpyrifos; crops; diazinon; environmental monitoring; fenitrothion; groundwater; leaching; macroinvertebrates; macrophytes; malathion; metabolism; models; quinalphos; risk; risk assessment; runoff; sediments; spray drift; surface water; Bangladesh
Abstract:
... The use of organophosphate pesticides (OPPs) to protect a variety of crops has increased in Bangladesh. OPPs may contaminate surrounding aquatic environments through several routes including spray drift, surface runoff and groundwater leaching. Since it is unknown how much OPP end ups in aquatic environment in Bangladesh, the objectives of the present study were to quantify the residues of ten mos ...
DOI:
10.1016/j.chemosphere.2018.04.167

41. GC-MS/MS determination and ecological risk assessment of pesticides in aquatic system: A case study in Hooghly River basin in West Bengal, India

Author:
Mondal, Rahul; Mukherjee, Ayan; Biswas, Subrata; Kole, Ramen Kumar
Source:
Chemosphere 2018 v.206 pp. 217-230
ISSN:
0045-6535
Subject:
DDT (pesticide); HCH (pesticide); aquatic animals; aquatic ecosystems; case studies; chlorpyrifos; drinking; environmental assessment; gas chromatography; guidelines; liquid-liquid extraction; monitoring; risk; risk assessment; river water; rivers; sediments; tandem mass spectrometry; watersheds; India
Abstract:
... A liquid-liquid extraction (LLE) for water and modified QuEChERS (quick, easy, cheap, effective, rugged, and safe) method for sediment combined with gas chromatography-tandem mass spectrometry (GC-MS/MS) detection in multiple reaction monitoring (MRM) mode was standardized for determination of 31 pesticides. Performance characteristics for the selected pesticides were acceptable according to Europ ...
DOI:
10.1016/j.chemosphere.2018.04.168

42. Geospatial analysis of residential proximity to open-pit coal mining areas in relation to micronuclei frequency, particulate matter concentration, and elemental enrichment factors

Author:
Espitia-Pérez, Lyda; Arteaga - Pertuz, Marcia; Soto, José Salvador; Espitia-Pérez, Pedro; Salcedo-Arteaga, Shirley; Pastor–Sierra, Karina; Galeano–Páez, Claudia; Brango, Hugo; da Silva, Juliana; Henriques, João A.P.
Source:
Chemosphere 2018 v.206 pp. 203-216
ISSN:
0045-6535
Subject:
DNA damage; chromium; coal; combustion; copper; cytogenetics; drilling; geographic information systems; monitoring; neoplasms; occupational exposure; particulates; pollution; risk; statistical analysis; surface mining
Abstract:
... During coal surface mining, several activities such as drilling, blasting, loading, and transport produce large quantities of particulate matter (PM) that is directly emitted into the atmosphere. Occupational exposure to this PM has been associated with an increase of DNA damage, but there is a scarcity of data examining the impact of these industrial operations in cytogenetic endpoints frequency ...
DOI:
10.1016/j.chemosphere.2018.04.049

43. Growth and recovery of zebrafish embryos after developmental exposure to raw and ozonated oil sands process-affected water

Author:
Lyons, Danielle D.; Morrison, Christie; Philibert, Danielle A.; Gamal El-Din, Mohamed; Tierney, Keith B.
Source:
Chemosphere 2018 v.206 pp. 405-413
ISSN:
0045-6535
Subject:
Danio rerio; aquatic organisms; biomarkers; biotransformation; embryo (animal); exposure duration; gene expression; genes; neurodevelopment; oil sands; organic compounds; otoliths; oxidative stress; ozonation; remediation; toxicity
Abstract:
... Due to the increasing volume of oil sands process-affect water (OSPW) and its toxicity to aquatic organisms, it is important to fully understand its effects and study remediation processes that will enable its release to the environment. Ozone treatment is currently being considered as a tool to expedite remediation, as it is known to degrade toxic organic compounds present in OSPW. In this study, ...
DOI:
10.1016/j.chemosphere.2018.05.028

44. Halomonas sp. strain A55, a novel dye decolorizing bacterium from dye-uncontaminated Rift Valley Soda lake

Author:
Guadie, Awoke; Gessesse, Amare; Xia, Siqing
Source:
Chemosphere 2018 v.206 pp. 59-69
ISSN:
0045-6535
Subject:
Halomonas; bacteria; carbon; color; correlation; decolorization; dyes; kinetics; lakes; nitrates; nitrogen; oxygen; pH; ribosomal RNA; salinity; screening; sequence analysis; sodium; textile mill effluents
Abstract:
... Considering the saline-alkaline nature of textile wastewater and treatment requirements, microbial samples were collected from Ethiopian Rift Valley Soda Lakes. A large number of bacteria (121) were isolated from dye-uncontaminated Lakes Chitu (81.0%), Abijata (15.7%) and Arenguadie (3.3%), of which 95 isolates (78.5%) were found dye decolorizer. Many dye decolorizer from Lake Chitu positively cor ...
DOI:
10.1016/j.chemosphere.2018.04.134

45. Histological investigations on thymus of male rats prenatally exposed to bisphenol A

Author:
Aydemir, Işıl; Kum, Şadiye; Tuğlu, Mehmet İbrahim
Source:
Chemosphere 2018 v.206 pp. 1-8
ISSN:
0045-6535
Subject:
adults; apoptosis; bisphenol A; blood serum; females; follicular fluid; humans; immunity; immunohistochemistry; males; placenta; rats; staining; thymus gland; urine
Abstract:
... Bisphenol A is called as a endocrine-distrupting chemical because of the its steroid-like activity and it used in the construction of plastic containing materials. It is indicated that bisphenol A can pass the human serum, urine, follicular fluid, placenta and umblical cord as a result of the use of substances containing this agent. In this study, we aimed to investigate the effects of bisphenol A ...
DOI:
10.1016/j.chemosphere.2018.04.145

46. How does free ammonia-based sludge pretreatment improve methane production from anaerobic digestion of waste activated sludge

Author:
Wang, Dongbo; Liu, Bowen; Liu, Xuran; Xu, Qiuxiang; Yang, Qi; Liu, Yiwen; Zeng, Guangming; Li, Xiaoming; Ni, Bing-Jie
Source:
Chemosphere 2018 v.206 pp. 491-501
ISSN:
0045-6535
Subject:
acetates; activated sludge; ammonia; anaerobic digestion; biodegradability; dextran; digestion; glucose; hydrogen; hydrolysis; methane production; pH
Abstract:
... Previous studies reported that free ammonia (FA) pretreatment could improve methane production from anaerobic digestion of waste activated sludge (WAS) effectively. However, details of how FA pretreatment improves methane production are poorly understood. This study therefore aims to reveal the underlying mechanisms of FA pretreatment affecting anaerobic digestion of WAS through a series of batch ...
DOI:
10.1016/j.chemosphere.2018.05.059

47. Hydrogen production from a thermophilic alkaline waste activated sludge fermenter: Effects of solid retention time (SRT)

Author:
Chen, Yun; Xiao, Keke; Shen, Nan; Zeng, Raymond J.; Zhou, Yan
Source:
Chemosphere 2018 v.206 pp. 101-106
ISSN:
0045-6535
Subject:
Actinobacteria; Clostridia; Proteobacteria; acidification; activated sludge; fermentation; fermenters; hydrogen; hydrogen production; hydrolysis; pH
Abstract:
... This study aims to investigate the effects of solid retention times (SRTs) on hydrogen production via thermophilic alkaline fermentation of waste activated sludge. The reactor was subjected to a SRT from 10 to 6 days during approximately 82 days of operation. The results revealed that SRT had minor influence on hydrolysis and hydrolysis efficiency in different phases were from 48.11% to 50.55%. Ne ...
DOI:
10.1016/j.chemosphere.2018.04.170

48. Industrial waste as a source of surface and groundwater pollution for more than half a century in a sector of the Río de la Plata coastal plain (Argentina)

Author:
Santucci, Lucía; Carol, Eleonora; Tanjal, Carolina
Source:
Chemosphere 2018 v.206 pp. 727-735
ISSN:
0045-6535
Subject:
X-ray diffraction; aquifers; coastal plains; electrical conductivity; geochemistry; groundwater; groundwater contamination; human health; industrial wastes; industry; iron oxides; jarosite; pH; pollutants; risk; scanning electron microscopes; sediments; soil; sulfates; sulfur; sulfuric acid; surface water; surveys; toxic substances; urban areas; Argentina
Abstract:
... Environmental liabilities have become one of the most important problems of the last years, especially those of contaminated sites located in urban areas which have been abandoned by pollution intensive industries. Such sites may contain hazardous materials that pose risks to human health and the environment. Industrial waste from the ancient sulfuric acid industry is scattered in a local area at ...
DOI:
10.1016/j.chemosphere.2018.05.084

49. Interference of three herbicides on iron acquisition in maize plants

Author:
Bartucca, Maria Luce; Di Michele, Alessandro; Del Buono, Daniele
Source:
Chemosphere 2018 v.206 pp. 424-431
ISSN:
0045-6535
Subject:
cell viability; copper; corn; crops; ecosystems; energy-dispersive X-ray analysis; fields; iron; manganese; metolachlor; metribuzin; phytosiderophores; plant growth; roots; scanning electron microscopes; scanning electron microscopy; terbuthylazine; weed control; zinc
Abstract:
... The use of herbicides to control weed species could lead to environmental threats due to their persistence and accumulation in the ecosystems and cultivated fields. Nonetheless, the effect of these compounds on plant mineral nutrition in crops has been barely investigated. This study aimed at ascertaining the effect of three herbicides (S-metolachlor, metribuzin and terbuthylazine) on the capacity ...
DOI:
10.1016/j.chemosphere.2018.05.040

50. Mechanism for removing 2,4-dichlorophenol via adsorption and Fenton-like oxidation using iron-based nanoparticles

Author:
Gan, Li; Li, Beibei; Guo, Mengyu; Weng, Xiulan; Wang, Ting; Chen, Zuliang
Source:
Chemosphere 2018 v.206 pp. 168-174
ISSN:
0045-6535
Subject:
2,4-dichlorophenol; Euphorbia; Fourier transform infrared spectroscopy; adsorption; gas chromatography-mass spectrometry; hydrogen peroxide; iron; leaf extracts; nanoparticles; oxidation; pH; pollutants; remediation; scanning electron microscopy; wastewater treatment
Abstract:
... In this paper, iron-based nanoparticles (Fe NPs) synthesized by Euphorbia cochinchensis leaf extract were used to remove 2,4-dichlorophenol (2,4-DCP). The possible mechanism for removing the adsorption and heterogeneous Fenton-like oxidation of 2,4-DCP was investigated. Various parameters affecting removal efficiency were tested, and the results showed that more than 83.5% of 2,4-DCP was removed w ...
DOI:
10.1016/j.chemosphere.2018.04.162