U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Journal name Journal of hazardous materials Remove constraint Journal name: Journal of hazardous materials Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
Start Over

Search

16,225  Search Results

« Previous | 1 - 20 of 16,225 |
Number of results to display per page

Search Results

1. 2-Chlorophenol consumption and its effect on the nitrifying sludge

Author:
Sergio Martínez-Hernández; Anne-Claire Texier; Flor de María Cuervo-López; Jorge Gómez
Source:
Journal of hazardous materials 2011 v.185 no.2-3 pp. 1592-1595
ISSN:
0304-3894
Subject:
2-chlorophenol; ammonium nitrogen; biomass; nitrates; nitrite nitrogen; nitrites; sludge; sodium bicarbonate
Abstract:
... The kinetic behavior of a nitrifying sludge exposed to 2-chlorophenol (2-CP) was evaluated in batch culture. The assays were performed using a stabilized nitrifying sludge. In control assays with (mgL⁻¹): NH₄ ⁺-N (100) and NaHCO₃ ⁻-C (250), the substrates were consumed in 8h, the ammonium consumption efficiency was 99% and the NO₃ ⁻ yield higher than 0.9. When 5mg 2-CP-C L⁻¹ was added, it was tran ...
DOI:
10.1016/j.jhazmat.2010.09.100

2. 3D Bi₁₂TiO₂₀/TiO₂ hierarchical heterostructure: Synthesis and enhanced visible-light photocatalytic activities

Author:
Jungang Hou; Zheng Wang; Shuqiang Jiao; Hongmin Zhu
Source:
Journal of hazardous materials 2011 v.192 no.3 pp. 1772-1779
ISSN:
0304-3894
Subject:
X-ray photoelectron spectroscopy; X-ray diffraction; absorption; titanium dioxide; nanorods; pollutants; transmission electron microscopy; nanoparticles; photocatalysts
Abstract:
... A three-dimensional (3D) multicomponent oxide, Bi₁₂TiO₂₀/TiO₂ hierarchical heterostructure was successfully synthesized via a one-step and template-free hydrothermal route. X-ray diffraction and X-ray photoelectron spectroscopy measurements confirm that the composition of the as-fabricated sample is Bi₁₂TiO₂₀/TiO₂ composite. Scanning and transmission electron microscopy observation reveals that th ...
DOI:
10.1016/j.jhazmat.2011.07.013

3. 9-Acridone-4-carboxylic acid as an efficient Cr(III) fluorescent sensor: Trace level detection, estimation and speciation studies

Author:
Debasis Karak; Arnab Banerjee; Animesh Sahana; Subarna Guha; Sisir Lohar; Susanta Sekhar Adhikari; Debasis Das
Source:
Journal of hazardous materials 2011 v.188 no.1-3 pp. 274-280
ISSN:
0304-3894
Subject:
Fourier transform infrared spectroscopy; chelation; chromium; equations; fluorescence; ions; spectral analysis
Abstract:
... 9-Acridone-4-carboxylic acid has been established as an efficient Cr(III) fluorescent sensor. The binding of this ligand with Cr(III) is confirmed by FTIR, thermal and mass spectral analysis of the product. Based on this chelation assisted fluorescence quenching, a highly sensitive spectrofluorometric method is developed for trace level detection, estimation and speciation studies of chromium in D ...
DOI:
10.1016/j.jhazmat.2011.01.110

4. A bacterial consortium isolated from an Icelandic fumarole displays exceptionally high levels of sulfate reduction and metals resistance

Author:
Maria Alexandrino; Francisco Macías; Rodrigo Costa; Newton C.M. Gomes; Adelino V.M. Canário; Maria C. Costa
Source:
Journal of hazardous materials 2011 v.187 no.1-3 pp. 362-370
ISSN:
0304-3894
Subject:
Clostridium; Desulfovibrio; bacterial communities; bioremediation; copper; iron; metal tolerance; mining; nucleotide sequences; phylogeny; ribosomal RNA; ribotypes; soil; sulfate-reducing bacteria; zinc
Abstract:
... The soils of three fumaroles and one mining site, all with high metal content, were surveyed for the presence of metal-resistant sulfate-reducing bacteria and their potential application in the bioremediation of acid mine drainages. By means of selective soil enrichments a bacterial consortium was isolated from an Icelandic fumarole that displayed very high sulfate reduction in the presence of a m ...
DOI:
10.1016/j.jhazmat.2011.01.035

5. A coagulation–powdered activated carbon–ultrafiltration – Multiple barrier approach for removing toxins from two Australian cyanobacterial blooms

Author:
Mike B. Dixon; Yann Richard; Lionel Ho; Christopher W.K. Chow; Brian K. O’Neill; Gayle Newcombe
Source:
Journal of hazardous materials 2011 v.186 no.2-3 pp. 1553-1559
ISSN:
0304-3894
Subject:
Cyanobacteria; activated carbon; adsorption; coagulation; cyanobacterial toxins; drinking water; humans; industry; metabolites; odor compounds; taste; toxicity; ultrafiltration; water quality; South Australia
Abstract:
... Cyanobacteria are a major problem for the world wide water industry as they can produce metabolites toxic to humans in addition to taste and odour compounds that make drinking water aesthetically displeasing. Removal of cyanobacterial toxins from drinking water is important to avoid serious illness in consumers. This objective can be confidently achieved through the application of the multiple bar ...
DOI:
10.1016/j.jhazmat.2010.12.049

6. A combination of bioleaching and bioprecipitation for deep removal of contaminating metals from dredged sediment

Author:
Di Fang; Ruichang Zhang; Lixiang Zhou; Jie Li
Source:
Journal of hazardous materials 2011 v.192 no.1 pp. 226-233
ISSN:
0304-3894
Subject:
X-ray diffraction; calcium hydroxide; chromium; copper; heavy metals; pH; risk; sediments; solubilization; sulfate-reducing bacteria; sulfates; sulfides; zinc
Abstract:
... A linked microbial process comprising bioleaching with sulfate-oxidizing bacteria and bioprecipitation with sulfate-reducing bacteria operating sequentially was investigated to deeply remove contaminating metals from dredged sediment. The results showed that sediment bioleaching resulted in a sharp decrease in sediment pH from an initial pH ∼7.6 to pH ∼2.5 within 10–20 days, approximately 65% of t ...
DOI:
10.1016/j.jhazmat.2011.05.008

7. A comparative assessment of biofiltration and activated sludge diffusion for odour abatement

Author:
Raquel Lebrero; Elisa Rodríguez; Pedro A. García-Encina; Raúl Muñoz
Source:
Journal of hazardous materials 2011 v.190 no.1-3 pp. 622-630
ISSN:
0304-3894
Subject:
activated sludge; biofilters; biofiltration; bioreactors; carbon; deodorization; hydrogen sulfide; odor control; odors; pollutants; toluene; wastewater
Abstract:
... The deodorization performance of a biofilter and an activated sludge diffusion (AS) system was comparatively evaluated in terms of removal efficiency (RE) and process stability at empty bed residence times (EBRT) ranging from 94 to 32s. Both bioreactors were fed with a synthetic odorous emission containing H₂S, butanone and toluene at 23.6–43.3, 4.3–6.3 and 0.4–0.6mgm⁻³, respectively. While the ou ...
DOI:
10.1016/j.jhazmat.2011.03.090

8. A comparative investigation on adsorption performances of mesoporous activated carbon prepared from waste rubber tire and activated carbon for a hazardous azo dye—Acid Blue 113

Author:
V.K. Gupta; Bina Gupta; Arshi Rastogi; Shilpi Agarwal; Arunima Nayak
Source:
Journal of hazardous materials 2011 v.186 no.1 pp. 891-901
ISSN:
0304-3894
Subject:
Fourier transform infrared spectroscopy; activated carbon; adsorbents; adsorption; azo dyes; chemical analysis; models; pH; porosity; rubber; scanning electron microscopy; sodium hydroxide; sorption isotherms; surface area; temperature; thermodynamics; tires
Abstract:
... A mesoporous carbon developed from waste tire rubber, characterized by chemical analysis, FTIR, and SEM studies, was used as an adsorbent for the removal and recovery of a hazardous azo dye, Acid Blue 113. Surface area, porosity, and density were determined. The adsorption of the dye over the prepared adsorbent and a commercial activated carbon was achieved under different pH, adsorbate concentrat ...
DOI:
10.1016/j.jhazmat.2010.11.091

9. A comparative study among different photochemical oxidation processes to enhance the biodegradability of paper mill wastewater

Author:
Tarek S. Jamil; Montaser Y. Ghaly; Ibrahim E. El-Seesy; Eglal R. Souaya; Rabab A. Nasr
Source:
Journal of hazardous materials 2011 v.185 no.1 pp. 353-358
ISSN:
0304-3894
Subject:
biochemical oxygen demand; biodegradability; chemical oxygen demand; evolution; hydrogen peroxide; ions; iron; organic matter; oxidation; photochemistry; pulp and paper mills; total suspended solids; ultraviolet radiation; wastewater; wastewater treatment
Abstract:
... Advanced oxidation processes including UV, UV/H₂O₂, Fenton reaction (Fe(II)/H₂O₂) and photo-Fenton process (Fe(II)/H₂O₂/UV) for the treatment of paper mill wastewater will be investigated. A comparison among these techniques is undertaken with respect to the decrease of chemical oxygen demand (COD) and total suspended solids (TSS) and the evolution of chloride ions. Optimum operating conditions fo ...
DOI:
10.1016/j.jhazmat.2010.09.041
PubMed:
20926185

10. A comparative study of experimental optimization and response surface optimization of Cr removal by emulsion ionic liquid membrane

Author:
Rahul Kumar Goyal; N.S. Jayakumar; M.A. Hashim
Source:
Journal of hazardous materials 2011 v.195 no. pp. 383-390
ISSN:
0304-3894
Subject:
agitation; chromium; emulsions; homogenization; hydrophobicity; ionic liquids; kerosene; liquid membranes; pH; response surface methodology; sodium hydroxide; surfactants; wastewater
Abstract:
... A comparative study on the optimization of process parameters of an emulsion ionic liquid membrane (EILM) by experimental work and response surface methodology (RSM) has been carried out. EILM was prepared by using kerosene as solvent, Span 80 as surfactant, NaOH as internal reagent, a hydrophobic ionic liquid 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([BMIM]⁺[NTf₂]⁻) as a stab ...
DOI:
10.1016/j.jhazmat.2011.08.056

11. A comparative study of synchronous treatment of sewage and sludge by two vermifiltrations using an epigeic earthworm Eisenia fetida

Author:
Meiyan Xing; JianYang; Yayi Wang; Jing Liu; Fen Yu
Source:
Journal of hazardous materials 2011 v.185 no.2-3 pp. 881-888
ISSN:
0304-3894
Subject:
Eisenia fetida; ambient temperature; biofiltration; byproducts; earthworms; integument; municipal wastewater; quartz; sand; sewage sludge; sewage treatment
Abstract:
... Reduction and stabilization of sewage sludge during the clarification of municipal wastewater was synchronously shown to be improved significantly in a pilot-scale vermifiltration using an epigeic earthworm Eisenia fetida. The present study aimed to select a better filter media suited to vermifiltration performance by the comparisons of sludge yields, the characteristics of the by-products of verm ...
DOI:
10.1016/j.jhazmat.2010.09.103
PubMed:
21041027

12. A comparative study on aggregation/sedimentation of TiO₂ nanoparticles in mono- and binary systems of fulvic acids and Fe(III)

Author:
Si Li; Weiling Sun
Source:
Journal of hazardous materials 2011 v.197 no. pp. 70-79
ISSN:
0304-3894
Subject:
adsorption; fulvic acids; hydrodynamics; iron; nanoparticles; pH; prediction; rivers; titanium dioxide; zeta potential
Abstract:
... The aggregation/sedimentation potentials of TiO₂ nanoparticles were studied in mono- and binary systems of Suwannee River fulvic acids (SRFA) and Fe(III) at different pH values. SRFA adsorption significantly enhanced the stability of TiO₂ nanoparticles at pH 4, 6 and 8, mainly due to the dramatic increase in negative surface charges. The presence of Fe(III) stabilized aggregation/sedimentation of ...
DOI:
10.1016/j.jhazmat.2011.09.059

13. A comparison of basic dye adsorption onto zeolitic materials synthesized from fly ash

Author:
Gülten Atun; Gül Hisarlı; Ayşe Engin Kurtoğlu; Nihat Ayar
Source:
Journal of hazardous materials 2011 v.187 no.1-3 pp. 562-573
ISSN:
0304-3894
Subject:
adsorbents; adsorption; dyes; fly ash; models; sorption isotherms; temperature; thermodynamics
Abstract:
... This investigation reveals the adsorption characteristics of two basic dyes, thionine (TH) and safranine T (ST), onto fly ash (FA) and its three zeolitized products prepared at different hydrothermal conditions. Typical two-step isotherms were observed for TH adsorption onto four adsorbents, whereas the isotherms of the larger ST molecules were S-shaped. The adsorption capacities of the zeolitized ...
DOI:
10.1016/j.jhazmat.2011.01.075

14. A discussion on improving hydration activity of steel slag by altering its mineral compositions

Author:
Qiang Wang; Peiyu Yan; Jianwen Feng
Source:
Journal of hazardous materials 2011 v.186 no.2-3 pp. 1070-1075
ISSN:
0304-3894
Subject:
alkalinity; calcium oxide; concrete; cooling; iron oxides; manufacturing; silica; slags; steel
Abstract:
... This study aims to investigate the ways to improve the cementitious properties of steel slag. The results show that the cementitious phase of steel slag is composed of silicate and aluminate, but the large particles of these phases make a very small contribution to the cementitious properties of steel slag. RO phase (CaO–FeO–MnO–MgO solid solution), Fe₃O₄, C₂F and f-CaO make no contribution to the ...
DOI:
10.1016/j.jhazmat.2010.11.109

15. A dual-use of DBD plasma for simultaneous NOₓ and SO₂ removal from coal-combustion flue gas

Author:
Bratislav M. Obradović; Goran B. Sretenović; Milorad M. Kuraica
Source:
Journal of hazardous materials 2011 v.185 no.2-3 pp. 1280-1286
ISSN:
0304-3894
Subject:
aerosols; air; ammonia; equipment; nitric oxide; oxidation; power plants; sulfur dioxide
Abstract:
... Dielectric barrier discharge (DBD) was investigated for the simultaneous removal of NOₓ and SO₂ from flue gas in a coal-combustion power plant. The DBD equipment was used in either a mode where flue gas was directed through the discharge zone (direct oxidation), or a mode where produced ozonized air was injected in the flue gas stream (indirect oxidation). Removal efficiencies of SO₂ and NO for bo ...
DOI:
10.1016/j.jhazmat.2010.10.043

16. A heterogeneous Fenton-like system with nanoparticulate zero-valent iron for removal of 4-chloro-3-methyl phenol

Author:
Lejin Xu; Jianlong Wang
Source:
Journal of hazardous materials 2011 v.186 no.1 pp. 256-264
ISSN:
0304-3894
Subject:
X-ray diffraction; biocides; carboxylic acids; catalysts; high performance liquid chromatography; hydrogen peroxide; hydroxyl radicals; ion exchange chromatography; iron; mass spectrometry; oxidation; pH; phenols; scanning electron microscopy
Abstract:
... The removal of biocide 4-chloro-3-methyl phenol (CMP) was investigated by heterogeneous Fenton-like system using nanoparticulate zero-valent iron (nZVI) as catalyst. The properties of nZVI before and after reaction were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The effects of pH value, initial concentration of CMP, nZVI dose and hydrogen peroxide (H₂O₂) conce ...
DOI:
10.1016/j.jhazmat.2010.10.116

17. A highly selective lead-sensitive electrode with solid contact based on ionic liquid

Author:
Cecylia Wardak
Source:
Journal of hazardous materials 2011 v.186 no.2-3 pp. 1131-1135
ISSN:
0304-3894
Subject:
detection limit; poly(vinyl chloride); heavy metals; lead; electrodes; titration; ionic liquids; metal ions
Abstract:
... A new polyvinylchloride membrane sensor for Pb²⁺ with solid contact based on ionic liquid has been prepared. The electrode shows a Nernstian response for lead ions over a wide concentration range (1×10⁻⁸ to 1×10⁻¹molL⁻¹) and the slope of 29.8mV/decade. The limit of detection is 4.3×10⁻⁹molL⁻¹. It has a fast response time of 5–7s and can be used for 4 months without any divergence in potential. The ...
DOI:
10.1016/j.jhazmat.2010.11.103

18. A kinetic spectrophotometric method for simultaneous determination of phenol and its three derivatives with the aid of artificial neural network

Author:
Yongnian Ni; Zhenzhen Xia; Serge Kokot
Source:
Journal of hazardous materials 2011 v.192 no.2 pp. 722-729
ISSN:
0304-3894
Subject:
absorbance; chemometrics; detection limit; hydroquinone; least squares; neural networks; oxidation; pH; phenol; polymerase chain reaction; prediction; pyrocatechol; spectrophotometers; temperature; wavelengths
Abstract:
... A novel kinetic spectrophotometric method was developed for determination of pyrocatechol, resorcin, hydroquinone and phenol based on their inhibitory effect on the oxidation of Rhodamine B (RhB) in acid medium at pH=3.0. A linear relationship was observed between the inhibitory effect and the concentrations of the compounds. The absorbance associated with the kinetic reactions was monitored at th ...
DOI:
10.1016/j.jhazmat.2011.05.081

19. A metabonomic analysis on health effects of drinking water on male mice (Mus musculus)

Author:
Yan Zhang; Bing Wu; Zong-Yao Zhang; Shu-Pei Cheng
Source:
Journal of hazardous materials 2011 v.190 no.1-3 pp. 515-519
ISSN:
0304-3894
Subject:
Mus musculus; adverse effects; amino acid metabolism; apoptosis; arginine; blood serum; choline; citrates; drinking water; energy metabolism; environmental health; glutamine; glycoproteins; histopathology; liver; lysine; males; metabolomics; mice; pyruvic acid; risk
Abstract:
... Health effects of drinking water on the male mice (Mus musculus) were investigated by metabonomics after exposure to the Taihu drinking water for 90 days. Metabonomics data combined with the results of conventional serum biochemistry tests and hepatic histopathology showed that the drinking water induced adverse health effects on the male mice. It was found that the serum levels of pyruvate, gluta ...
DOI:
10.1016/j.jhazmat.2011.03.077

20. A model for simulating the grinding and classification cyclic system of waste PCBs recycling production line

Author:
Deming Yang; Zhenming Xu
Source:
Journal of hazardous materials 2011 v.192 no.3 pp. 1450-1457
ISSN:
0304-3894
Subject:
crushing; dissociation; environmental impact; equipment; grinding; industry; metals; polychlorinated biphenyls; process control; recycling; simulation models; wastes
Abstract:
... Crushing and separating technology is widely used in waste printed circuit boards (PCBs) recycling process. A set of automatic line without negative impact to environment for recycling waste PCBs was applied in industry scale. Crushed waste PCBs particles grinding and classification cyclic system is the most important part of the automatic production line, and it decides the efficiency of the whol ...
DOI:
10.1016/j.jhazmat.2011.06.061