Abstract:
:In this work, green tea extracts synthesized nanoscale zero-valent iron/nickel (GT-nZVI/Ni) was prepared and the Cr(VI) contaminated soil column was remediated by GT-nZVI/Ni suspension. The influence factors including the concentration, pH value and flow rate of GT-nZVI/Ni suspension were studied. Under the conditions of pH = 4, concentration of 0.15 g/L and flow rate of 1.25 mL/h, GT-nZVI/Ni suspension had the best reduction and immobilization effect on Cr(VI) in the soil column. Na+ and Ca2+ can promote the immobilization of Cr (VI) in soil, while humic acid weakened the immobilization of Cr (VI). After GT-nZVI/Ni is injected into the soil column, the content of weak acid extractable and reduced chromium is significantly reduced, and the toxic hazard of hexavalent chromium in the soil is greatly reduced. The 1D-CDE model was used to fit the breakthrough curves of Fe(tot), Fe(aq) and Fe(0), and the migration of GT-nZVI/Ni in Cr(VI) contaminated soil was simulated and predicted. Compared with the inert solute Cl-, the breakthrough curves of Fe (tot), Fe (aq) and Fe (0) in Cr (VI) contaminated soil column were significantly lagged, with delay coefficients of 2.465, 2.322 and 3.288, respectively. The reaction of GT-nZVI/Ni with Cr (VI) led to the decrease of Fe mobility. Finally, the outflow concentration of Fe (tot) was 0.064 g/L, and the loss was mainly due to reaction and retention in the soil. About 57.89% of GT-nZVI/Ni was retained in the soil.
journal_name
Ecotoxicol Environ Safjournal_title
Ecotoxicology and environmental safetyauthors
Zhu F,Liu T,Zhang Z,Liang Wdoi
10.1016/j.ecoenv.2020.111572subject
Has Abstractpub_date
2021-01-01 00:00:00pages
111572eissn
0147-6513issn
1090-2414pii
S0147-6513(20)31409-3journal_volume
207pub_type
杂志文章abstract::Polybrominated diphenyl ethers (PBDEs) are widespread persistent organic pollutants (POPs) because of their extensive use in diverse electronic products, which have posed great threats to human health and ecosystem. In this study, a total of 54 soil samples were collected from an e-waste recycling area in Tianjin, nor...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2018.10.029
更新日期:2019-01-15 00:00:00
abstract::Cu phytoremediation potential of an ornamental plant, Calandula officinalis, was explored in terms of growth responses, photosynthetic activities and antioxidant enzymes such as SOD, CAT and GPX. The results showed that this plant had high Cu tolerance of up to 400 mg/kg, which is far above the phytotoxic range for no...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2015.12.030
更新日期:2016-04-01 00:00:00
abstract::Subtle neurological disturbances have been described in organophosphorus intoxication. Experimental studies have reported neuronal necrosis, particularly in animals experiencing seizures. The objective of the present work was to investigate if in rats (without seizures) exposed to an organophosphate agent, morphologic...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2005.05.002
更新日期:2006-06-01 00:00:00
abstract::D151 resin preloaded with Fe3+ [denoted as R-Fe3+] was to investigate R-Fe3+ as an adsorbent for glyphosate from water in the presence high concentration of salt. The adsorption mechanism revealed the coordination of Fe3+ inside R-Fe3+ with O atoms of P-O and N atoms in glyphosate molecule. The adsorption capacity of ...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2019.110140
更新日期:2020-03-01 00:00:00
abstract::The marked species differences in short-term toxicity (30-day LD50) of ca. 10,000 (LD50: guinea pigs ca. 1 microgram/kg body wt and Han/Wistar Kuopio rats more than 9600 micrograms/kg body wt) of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is one of the central issues of the controversies that have developed on the val...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章,评审
doi:10.1006/eesa.1996.1502
更新日期:1997-04-01 00:00:00
abstract::Silver nanoparticles (AgNPs) are widely used in industry, increasing their potential level in the environment. Plant root, the key organ absorbing water and nutrients, are directly exposed to the soil. Little is known about AgNP-mediated effects on plant root growth. Here, we show that AgNPs are absorbed by root and m...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2019.110072
更新日期:2020-03-01 00:00:00
abstract::In this study, six alkyl esters of p-hydroxybenzoic acids (parabens) and their metabolite, 4-hydroxybenzoic acid (p-HB) were simultaneously determined in surface water and sediment from the Yellow River and the Huai River in Henan Province, China. Concentrations of ∑parabens in surface water were 3.31-55.2 ng/L in the...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2019.01.102
更新日期:2019-05-15 00:00:00
abstract::The present article investigates the responses of Hippocampus reidi exposed to crude oil (10mL/L) for time periods that are characteristic of acute (12, 24, 48 and 96h) and subchronic (168 and 336h) and its recovery at 168h, such as to assess H. reidi as a good sentinel species. These responses were examined by genoto...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章,评审
doi:10.1016/j.ecoenv.2012.09.029
更新日期:2013-01-01 00:00:00
abstract::A modified method was proposed which integrates the spatial patterns of toxic metals simulated by sequential indicator simulation, different exposure models and local current land uses extracted by remote-sensing software into a dose-response model for human health risk assessment of toxic metals. A total of 156 soil ...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2016.03.029
更新日期:2016-07-01 00:00:00
abstract::Zinc pyrithione (ZPT) is widely used as a substitute booster biocide for tributyltin and is also an additive to antidandruff shampoos and medical cosmetic products. ZPT and pyrithione have been detected in different environmental matrices and biota, suggesting that it may pose health threats to aquatic organisms and e...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2018.06.026
更新日期:2018-10-01 00:00:00
abstract::Phosphite (Phi), an analog of phosphate (Pi) anion, is emerging as a potential biostimulator, fungicide and insecticide. Here, we reported that Phi also significantly enhanced thermotolerance in potatoes under heat stress. Potato plants with and without Phi pretreatment were exposed to heat stress and their heat toler...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2019.110048
更新日期:2020-03-01 00:00:00
abstract::In the adult Channa punctatus exposed to 500 ppm of the commonly used fertilizer ammonium sulfate for 6 months from January to June, ovarian growth was retarded significantly. The inhibition of the ovarian growth is reflected on the gonadosomatic index which was significantly reduced as compared with control. Apart fr...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/0147-6513(86)90101-6
更新日期:1986-06-01 00:00:00
abstract::The present paper first time reports the role of 24-epibrassinolide (EBL) in mitigating the adverse effects of Chlorpyrifos (CPF), a broad spectrum organophosphate insecticide by regulating the antioxidant defence system in an elite indica rice variety Pusa Basmati-1. It investigates the effect of CPF (0.02%, 0.04% an...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2012.07.003
更新日期:2012-11-01 00:00:00
abstract::The quality and safety of ginseng products were seriously affected due to the slow metabolism and long-term residual pesticides in ginseng. Microbial degradation is an effective method to degrade pesticide residues. In this study, ginseng endophytic Paenibacillus polymyxa was used to degrade pesticide residues. A meth...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2018.10.093
更新日期:2019-01-30 00:00:00
abstract::The wide application of rare earth elements (REEs) has led to the accumulation of REEs in soil and plant. Thereby, the effect of Tb(3+) on the contents of cytosolic nutrient elements in horseradish was investigated with the synchronous detection technique of scanning electron microscope and energy dispersive X-ray spe...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2010.03.010
更新日期:2010-07-01 00:00:00
abstract::Due to rapid advances in the era of electronic technologies, indium has played the important material for the production of liquid crystal display screens in the semiconductor and optoelectronic industries. The present study focuses on evaluating the toxic effects and related mechanisms of indium chloride (InCl3) on R...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2020.110348
更新日期:2020-04-15 00:00:00
abstract::A number of high molecular weight (HMW) lignin derivatives possessing varied chemical properties were screened for their biological effects in order to obtain more information on the possible structural features of HMW lignin-related effects. The studied compounds were both commercial and in-house extracted lignin der...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2010.02.004
更新日期:2010-10-01 00:00:00
abstract::Nickel (Ni) is a metal of environmental concern, known to cause toxicity to freshwater organisms by impairing ionoregulation and/or respiratory gas exchange, and by inducing oxidative stress. However, little is known regarding how nickel toxicity is influenced by salinity. In the current study we investigated the sali...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2015.07.019
更新日期:2015-12-01 00:00:00
abstract::To investigate the effect of fermented black barley on cooking oil fume (COF)-induced lung injury, male ICR mice were randomized into five groups: normal control (NC), fermented black barley treatment (NF), COF exposure (O), COF + fermented black barley treatment (OF) and COF + Lactobacillus treatment (OL). The exposu...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2020.110473
更新日期:2020-06-01 00:00:00
abstract::A novel, green, facile and dual turn-off/on sensor for detection of Hg2+ and I- was developed based on carbon dots. Carbon dots were synthesized from citric acid, urea, and thiourea by microwave-assisted method. The size of the carbon dots (CDs) was about 10 nm and the synthesized CDs showed a strong emission at 523 n...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2018.01.059
更新日期:2018-05-30 00:00:00
abstract::The effects of fullerenol nanopriming (0, 10, 40, 80 and 120 nM concentration) on salt stressed-wheat (0 and 150 mM NaCl) were investigated under natural conditions. Salinity resulted in a shift in wheat growth pattern in the form of LAR (+ 40.9% increase) and RGR (+ 13.4% increase) while decreased NAR (- 31.7%). It a...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2021.111901
更新日期:2021-01-13 00:00:00
abstract::Aqueous samples containing various nitrated and aminated diphenylamine derivatives were subjected to the luminescent bacterium Vibrio fischeri NRRL-B-11177 to determine their ecotoxicological potential. As the most important toxicological parameter, EC50, the concentration needed to reduce bacterial luminescence by 50...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1006/eesa.1995.1055
更新日期:1995-07-01 00:00:00
abstract::Detection of mutagenic pollution in natural environment is difficult as there are thousands of known chemical mutagens, and they have mutagenic effects usually at very low concentrations. Plants are able to accumulate various substances, including mutagens, in their tissues. Here, we demonstrate that rapid detection o...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2007.04.004
更新日期:2008-06-01 00:00:00
abstract::Changes in the activity of antioxidant enzymes including superoxide dismutase (SOD) and peroxidase (POD) and in the content of soluble protein (SP) in Nereis diversicolor exposed to cadmium (Cd) and petroleum hydrocarbons (PHCs) were investigated under a laboratory condition. The results indicated that SOD activity in...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2007.04.014
更新日期:2008-05-01 00:00:00
abstract::Increasing commercial application of silver nanoparticles (Ag NP) and subsequent presence in wastewater and sewage sludge has raised concerns regarding their effects in the aquatic and terrestrial environment. Several studies have employed standardised acute and chronic earthworm-based tests to establish the toxicolog...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2017.03.015
更新日期:2017-07-01 00:00:00
abstract::The effects of various factors on fungicide triphenyltin acetate dissipation in selected soil types were studied; temperature is clearly the most important factor of these. Residues of this fungicide in Fangtzupo clay loam and Lanyang loam incubated at 30 degrees C for 32 days (water content 100, 70, or 40% of field c...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1006/eesa.2001.2053
更新日期:2001-06-01 00:00:00
abstract::Shorebirds were among birds exposed to Mississippi Canyon 252 (MC252) crude oil during the 2010 Deep Water Horizon (DWH) oil spill in the Gulf of Mexico. The western sandpiper (Calidris mauri) was chosen as one of four species for initial oral dosing studies conducted under Phase 2 of the avian toxicity studies for th...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2017.03.045
更新日期:2017-12-01 00:00:00
abstract::The effects of (Rac)-metolachlor and (S)-metolachlor on the avoidance behavior, bodyweight change and in vivo enzyme activity of earthworms (Eisenia foetida) were determined and compared in this study. The effects of (Rac)-metolachlor on the enzyme activities of E. foetida and bodyweight were more significant than tho...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2010.07.035
更新日期:2010-11-01 00:00:00
abstract::Experiments were conducted to measure acute lethal response of aquatic insects to hexazinone (Velpar L) and triclopyr ester (Garlon 4) in flow-through laboratory bioassays, and to determine lethal and behavioral effects of these herbicides on insects in outdoor stream channels. No significant mortality (chi 2 P greate...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/0147-6513(92)90085-h
更新日期:1992-06-01 00:00:00
abstract::Cyanobacterial blooms of Microcystis aeruginosa represent a significant risk to the environment and have become a worldwide concern. M. aeruginosa can produce the hepatotoxins microcystins (MCs) with potential for tumor promotion. The present study evaluated the time-dependent effects in the transcription of tumor-rel...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2018.06.007
更新日期:2018-10-01 00:00:00