Abstract:
:This study examined the changes in the bacterial community during biodegradation of polycyclic aromatic hydrocarbon (PAH) substrate when N'-N' dimethylformamide (DMF) was added. The microbial populations that biodegrade the PAH substrate were assessed by Fluorescence in-situ hybridization (FISH) and changed from 49.45% Archaea and 49.15% Bacteria to 42.00% Archaea and 51.78% Bacteria when the PAH was supplemented with DMF. Nine microorganisms were classified as Gram-negative alpha-, beta- and gamma-Proteobacteria bacteria during biodegradation of PAH alone by the Biolog system. Incentive eleven microorganisms obtained from the PAH-DMF mixed substrate were found to be beta-, gamma-Proteobacteria bacteria, high G+C Gram-positive bacteria (HGC), low G+C Gram-positive bacteria (LGC) and there was even one Deinococcus-Thermus strain; this indicates greater biodiversity. The numbers in the Pseudomonad group were as high as 10(5)-10(6) CFU ml(-1), suggesting that this group plays an important role in PAH biodegradation. Community-Level Physiological Profiling (CLPP) and physiological characterization were different in the PAH biodegradation process with and without DMF. Utilization of the 95 carbon sources from the Biolog GN2 microtiter plate was greater during PAH biodegradation when PAH is present alone compared to that in the presence of DMF. The range of enzymatic activities during PAH biodegradation was lower in the presence of DMF. These results show that DMF should be used with caution when PAH is a substrate during laboratory or pilot biotreatability studies.
journal_name
Environ Technoljournal_title
Environmental technologyauthors
Chang YT,Lee JF,Chao HP,Liao WLdoi
10.1080/09593332708618613subject
Has Abstractpub_date
2006-01-01 00:00:00pages
1-14issue
1eissn
0959-3330issn
1479-487Xjournal_volume
27pub_type
杂志文章abstract::Optimization of Acid Orange 7 (AO7) treatment using heterogeneous Fenton-like method in a recirculating fluidized-bed reactor (FBR) was investigated by using central composite design (CCD). Natural magnetite (NM) as Fenton-like catalyst was characterized using scanning electron microscopy. A nonlinear CCD model was ob...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2016.1267804
更新日期:2017-10-01 00:00:00
abstract::A three phase (aqueous/solid/gas) mixed weak acid/base kinetic model developed by Musvoto et al. is applied to simulate the physical and chemical processes that occur on aeration of anaerobic digester liquors. Included in the model are the kinetic reactions for (i) weak acid/base dissocations (water, carbonate, ammoni...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332208618189
更新日期:2001-11-01 00:00:00
abstract::Use of lignocellulosic crop harvest residues for liquid or gaseous biofuel production may impact soil quality, long-term soil fertility and the major determinants of the latter, stocks of soil organic carbon and nutrients. When soil organic carbon stocks of mineral cropland soils are to be maintained, there is scope f...
journal_title:Environmental technology
pub_type: 杂志文章,评审
doi:10.1080/09593330.2013.826252
更新日期:2013-07-01 00:00:00
abstract::UV-light irradiated photocatalytic reduction of Cr(VI) to Cr(III) in aqueous solution using ZnFe2O4 nanoparticles in the presence of formic acid was reported. X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDS) and UV-Vis diffuse reflectance spectroscopy (DRS) were e...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2020.1713902
更新日期:2020-01-21 00:00:00
abstract::This study developed the 2-step extraction method which eluted the Pb adsorbing on the surface of sediments in the first solution by aqua regia and extracted the Pb absorbed inside particles into the second solution by mixed acid of nitric acid, hydrofluoric acid and hydrogen peroxide solution. We applied the method t...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2018.1478885
更新日期:2019-11-01 00:00:00
abstract::Liquid-state bioconversion (LSB) technique has great potential for application in bioremediation of sewage sludge. The purpose of this study is to determine the optimum level of LSB process of sewage sludge treatment by mixed fungal (Aspergillus niger and Penicillium corylophilum) inoculation in a pilot-scale bioreact...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2015.1058860
更新日期:2016-01-01 00:00:00
abstract::Activated carbon was prepared from soybean dregs using chemical activation by zinc chloride. The influence of activation parameters such as impregnation ratio, activation temperature and carbonization time was investigated. The physicochemical properties of activated carbon were characterized using SEM, FTIR, BET and ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2018.1554006
更新日期:2020-06-01 00:00:00
abstract::A hydrometallurgical circuit process combining the leaching of metals with the electrolytic regeneration of the mass separating agent is an option to effectively treat heavy metal contaminated solids. This process aims towards a dosed loop utilisation of the extractant by its regeneration and recycling, enabling the u...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332308618385
更新日期:2002-05-01 00:00:00
abstract::In the present investigation, the performance of a laboratory-scale plate and frame-type electrochemical ion-exchange (EIX) cell on removal ofhexavalent chromium from synthetic wastewater containing 5 mg/l of Cr(VI) was evaluated under varying applied voltages. Ruthenium dioxide-coated titanium plate (RuO2/Ti) was use...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2014.902108
更新日期:2014-09-01 00:00:00
abstract::Electrochemical phenol degradation using a platinum-coated Ti electrode was comparatively investigated at different pH levels, which were maintained over the entire operation period. Various analyses such as phenol concentration, TOC, COD, cyclic voltammetry, and total current efficiency were conducted to determine th...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2019.1649468
更新日期:2020-10-01 00:00:00
abstract::The presence of an ionized carboxyl group in the widely used non-steroidal anti-inflammatory (NSAID) drug diclofenac potassium results in a high mobility of diclofenac and in its low sorption under conditions of slow sand filtration or subsoil passage. No diclofenac degradation was detected in pure water or sludge dur...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2011.619582
更新日期:2012-06-01 00:00:00
abstract::An evaluation has been made of a dispersive liquid-liquid microextraction (DLLME) procedure for the determination of 16 polycyclic aromatic hydrocarbons (PAHs) in different environmental waters including seawaters and wastewaters, using gas-chromatography (GC) with flame-ionization detection (FID). The optimized metho...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2012.710255
更新日期:2013-03-01 00:00:00
abstract::Considerable effort is being made to remediate soils contaminated with petroleum hydrocarbons, polyaromatic hydrocarbons, polychlorinated biphenyls, dioxins, heavy metals and other organic and inorganic compounds that have resulted from industrial activities, accidental spills and improper waste disposal practices. Cu...
journal_title:Environmental technology
pub_type: 杂志文章,评审
doi:10.1080/09593332608618490
更新日期:2005-09-01 00:00:00
abstract::Pseudomonas putida RW-II isolated from petroleum refinery wastewater was tested for hydrocarbon degradation potential in the presence of polycationic surfactant, cetyl trimethylammonium bromide (CTAB). The effects of CTAB on growth profile, cell surface hydrophobicity, cell adhesion, zeta potential and hydrocarbon bio...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2011.561877
更新日期:2011-12-01 00:00:00
abstract::Effluents from municipal wastewater treatment have been long recognized as suitable media for the cultivation of microalgae biomass. However, few studies report data concerning biomass productivity in continuous reactors using unsterilized wastewater effluents. This study focuses on indigenous microalgae strains that ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2018.1549105
更新日期:2020-06-01 00:00:00
abstract::Pilot-scale moving bed biofilm reactor (MBBR) is used to investigate the kinetics and biofilm response of municipal, tertiary nitrification at 1°C. The research demonstrates that significant rates of tertiary MBBR nitrification are attainable and stable for extended periods of operation at 1°C, with a maximum removal ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2016.1143037
更新日期:2016-08-01 00:00:00
abstract::In this study, a bipolar membrane electrodialysis (BMED) process, which is thought to be an effective treatment method for leachate, was evaluated for leachates of three different ages ('young', 'middle-aged' and 'elderly'). The leachates were pretreated to eliminate membrane fouling problems prior to the BMED process...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2016.1276221
更新日期:2017-11-01 00:00:00
abstract::Estimation of scaling-up parameters for a site restoration process using a surfactant-enhanced soil washing (SESW) process followed by the application of advanced oxidation processes (Fenton and photo-Fenton) was performed. For the SESW, different parameters were varied and the soil washing efficiency for pesticide (2...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2012.696721
更新日期:2013-01-01 00:00:00
abstract::Recently a new group of ionic liquids (ILs) with herbicidal properties has been proposed for use in agriculture. Owing to the design of specific physicochemical properties, this group, referred to as herbicidal ionic liquids (HILs), allows for reducing herbicide field doses. Several ILs comprising phenoxy herbicides a...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2016.1217941
更新日期:2017-05-01 00:00:00
abstract::Greenbelt is a strip of vegetation for which species of trees and shrubs are scientifically chosen and planted to serve a designated purpose such as control of wind erosion, of dust, of noise etc. In the context of air pollution attenuation, greenbelts must be developed around a source of air pollutant in a manner so ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332308618374
更新日期:2002-07-01 00:00:00
abstract::The objective of this work is to evaluate biological groundwater treatment systems that will achieve hexavalent chromium removal from groundwater at hexavalent chromium (Cr(VI)) groundwater concentrations in the 0-200 μg/L range under anoxic conditions. The effect of type of organic substrate added as feed to the grou...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1393013
更新日期:2019-01-01 00:00:00
abstract::Nоblе mеtаls suppоrtеd оn TiО2 (Dеgussа P25) mоdifiеd with WО3 undеr thе еffесt оf fееding оxуgеn аnd оzоnе соntаining mixturе tо thе rеасtоr undеr UV-С irrаdiаtiоn wеrе еxаminеd fоr thеir саtаlуtiс асtivitу in thеrеасtiоn оf оxаliс асid liquid phаsе оxidаtiоn. Thе sаmplеs wеrе sуnthеsizеd bу еxtrасtivе-pуrоlуtiс mеth...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2019.1590462
更新日期:2020-09-01 00:00:00
abstract::The removal of toxic phenolic compounds from industrial wastewater is an important issue to be addressed. Their presence in water and soil has become a great environmental concern, and effective methods for their removal need to be addressed. The feasibility of applying laccases for the degradation of phenolic compoun...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2012.655317
更新日期:2012-09-01 00:00:00
abstract::Current concern over the potentially negative impacts of climate change has brought attention to anthropogenic sources of methane, a primary greenhouse gas. Two such emission sources are methane leakage at heavy oil wells and sanitary landfills. At both of these sources, substantial quantities of methane could potenti...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332208618315
更新日期:2001-01-01 00:00:00
abstract::EDTA column's extraction were performed on four artificially contaminated soils, followed by the percolation of pure water to ensure the removal of EDTA entrapped in soil. The investigated soils were characterized by a content of organic matter ranging from 1% to 25%. A mathematical model was developed for copper leac...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332608618576
更新日期:2005-02-01 00:00:00
abstract::Polyaspartic acid (PSI) is suitable for the inhibition of inorganic scale deposition. To enhance its scale inhibition efficiency, PSI was modified by reacting aspartic acid with malic acid (MA) using thermal polycondensation polymerization. This reaction resulted in poly(aspartic acid-co-malic acid) (PSI-co-MA) dual p...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2014.984773
更新日期:2015-05-01 00:00:00
abstract::Dispersion modelling was proved by researchers that most part of the models, including the regulatory models recommended by the Environmental Protection Agency of the United States (AERMOD and CALPUFF), do not have the ability to predict under complex situations. This article presents a novel evaluation of the propaga...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2016.1205672
更新日期:2017-03-01 00:00:00
abstract::Toluene, the alkyl benzene, is a common constituent of contaminant streams emitted by hydrocarbon fuel combustion systems. The oxidation of toluene to less toxic compounds can be enhanced through catalysis. The capacity of Mn-Ce/gamma-Al2O3 to catalyze toluene oxidation was investigated using a fixed bed flow reactor,...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330801984597
更新日期:2008-05-01 00:00:00
abstract::Dissolved organic matter (DOM) in soluble microbial products (SMP), loosely bound (LBEPS) and tightly bound extracellular polymeric substances (TBEPS) were extracted from wastewater sludge, fractionated by size exclusion chromatography and characterized by ultraviolet absorbance at 230, 254 and 280 nm, the dissolved o...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330802217740
更新日期:2008-10-01 00:00:00
abstract::A heterotrophic nitrifier wsw-1001 was isolated from Songhua River and identified as Pseudomonas fluorescens. Ammonium removal by the strain at low temperature was investigated. The effect of initial ammonium concentration (from 5 to 1000 mg/L) and culture temperature (from 4°C to 30°C) on ammonium removal efficiency ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2015.1035759
更新日期:2015-01-01 00:00:00