Biofiltration of air contaminated with toluene.

abstract：:Uric acid (UA) is one of the principal effluents of urine wastewaters, widely used in agriculture as fertilizer, which is potentially dangerous and biorefractory. Hence, the degradation of UA (2,6,8-trihydroxy purine) in aqueous solution of pH 3.0 has been studied by conductive-diamond electrochemical oxidation. Hydro...

journal_title：Environmental technology

authors： Dbira S,Bensalah N,Bedoui A

更新日期：2016-12-01 00:00:00

abstract：:The role of wastewater suspended solids in denitrification based on intracellular carbon storage was investigated in a biofilm sequencing batch reactor performing alternately anaerobic carbon storage and denitrification. Municipal wastewater as the feeding was compared with filtered wastewater and with acetate. The re...

journal_title：Environmental technology

authors： Krasnits E,Beliavski M,Tarre S,Green M

更新日期：2014-01-01 00:00:00

abstract：:Adsorption tests were carried out in acidic synthetic solutions (pH 2.0) using 20 g l(-1) of various natural adsorbents and 0.25 mM of 11 different metals. In decreasing order, the most efficient adsorbents tested were: oyster shells, cedar bark, vermiculite, cocoa shells and peanut shells. In contrast, weak metal ads...

journal_title：Environmental technology

authors： Blais JF,Shen S,Meunier N,Tyagi RD

更新日期：2003-02-01 00:00:00

abstract：:The role of carbonaceous sediment oxygen demand (CSOD) due to oxidation of sulfides reduced in oxygen dynamics in crude oil contaminated salt marshes was investigated through a mathematical model. An existing CSOD model was calibrated from laboratory data sets through nonlinear regression. The effect of oil and fertil...

journal_title：Environmental technology

authors： Shin WS,Pardue JH,Choi SJ

更新日期：2001-07-01 00:00:00

abstract：:This paper reviews published work on the sorption of rare earth elements by microbial biomass. In a first part, the biosorption capacities and the various experimental conditions performed in batch reactor experiments are compared. Secondly, sorption modelling generally used in biosorption studies are described. Third...

journal_title：Environmental technology

authors： Andrès Y,Texier AC,Le Cloirec P

更新日期：2003-11-01 00:00:00

abstract：:The aim of this paper was, on one hand, to study the treatment of raw tannery effluent by infiltration percolation system and, on the other hand, to determine the distribution and speciation of chromium in the used soil. The system pilot consisted of columns filled to 15 cm of gravel and 60 cm of soil (88% of sand). T...

journal_title：Environmental technology

authors： Tiglyene S,Jaouad A,Mandi L

更新日期：2008-06-01 00:00:00

abstract：:Biosurfactants are amphiphilic compounds of microbial origin which exhibit better properties than their chemically derived counterparts. They are usually produced in submerged fermentation by different types of bacteria. However, biosurfactant production by fungi, particularly of the white-rot type, has been scarcely ...

journal_title：Environmental technology

authors： Lourenço LA,Alberton Magina MD,Tavares LBB,Guelli Ulson de Souza SMA,García Román M,Altmajer Vaz D

更新日期：2018-12-01 00:00:00

abstract：:The photocatalytic production of molecular hydrogen (H2) from aqueous solutions of alkyl-alkanolamines (triethanolamine (tri-EOA), diethanolamine (di-EOA), ethanolamine (EOA), ethylamine (EA) and ethanol over Pt-loaded commercial (Sachtleben Hombikat UV100) nanoparticle titanium dioxide photocatalysts was studied. The...

journal_title：Environmental technology

authors： Alkaim AF,Dillert R,Bahnemann DW

更新日期：2015-01-01 00:00:00

abstract：:The usefulness of the electrical resistivity method for characterization of contaminated sites has been studied in many ways. The most commonly used device is a cone penetrometer that utilizes two or four electrodes to measure electrical resistivity (or conductivity) during a cone penetration test (CPT) along a vertic...

journal_title：Environmental technology

authors： Ahn T,Allouche EN,Yanful EK

更新日期：2007-06-01 00:00:00

abstract：:Currently, CO2 emission is the main cause of climate change and its various related environmental impacts. Therefore, we have as a prime the development of clean sources of energy. The hydrogen economy is very attractive in this regard, however, when generated from the methane reform, there are also large-scale CO2 em...

journal_title：Environmental technology

authors： Scharnberg ARA,Berutti FA,Alves AK

更新日期：2020-05-04 00:00:00

abstract：:Biofiltration technology has been recognized as a promising biotechnology for treating the volatile organic compounds (VOCs) present in polluted air. This study aims to investigate the performance of a biofiltration system of Streptomyces griseus sp. DSM-40759 immobilized on activated carbon (PICA S23) towards the ads...

journal_title：Environmental technology

authors： Mohamed EF,Awad G,Andriantsiferana C,El-Diwany AI

更新日期：2016-01-01 00:00:00

abstract：:We consider the use of metallic iron nanoparticles for cleaning contaminated water, focusing our study in the sorption of arsenic compounds. In particular, we discuss the results of their sorption process on the surface of zerovalent iron nanoparticles (nZVI) by performing a complete characterization of the surface mo...

journal_title：Environmental technology

authors： Baltazar SE,García A,Romero AH,Rubio MA,Arancibia-Miranda N,Altbir D

更新日期：2014-09-01 00:00:00

abstract：:Pt nanoparticles/TiO2 catalysts were prepared and evaluated for UV-photocatalytic degradation ofphenol and 2-chlorophenol (2-CP) in synthetic wastewater solutions. The catalysts were synthesized by immobilizing colloidal Pt nanoparticles onto titanium dioxide (rutile TiO2). Analytical techniques, such as standard Brun...

journal_title：Environmental technology

authors： Barakat MA,Al-Hutailah RI,Qayyum E,Rashid J,Kuhn JN

更新日期：2014-01-01 00:00:00

abstract：:Removing protozoa from a water supply using coagulation, flocculation, dissolved air flotation (DAF) and filtration on a bench scale was evaluated. Calcium carbonate flocculation with and without immunomagnetic separation (IMS) was chosen to detect Giardia spp. cysts and Cryptosporidium spp. oocysts in the studied sam...

journal_title：Environmental technology

authors： Andreoli FC,Sabogal-Paz LP

更新日期：2019-02-01 00:00:00

abstract：:Ozonation of 2,4-dichlorophenol (DCP) in the presence of permanganate has been investigated at various levels of pH. Compared with only 40% in single ozonation, by catalytic ozonation the total organic carbon removal efficiency reached almost 95%. It has been shown that the addition of 0.5 mg L(-1) MnO4- (based on man...

journal_title：Environmental technology

authors： Xiao H,Xu Y,Yu M,Zhang Q

更新日期：2010-10-01 00:00:00

abstract：:In this study, coal fly ash supported MnO2 (CFA@MnO2) was synthesized as heterocatalyst for the activation of peroxymonosulfate to degrade Acid Red 73 (AR73). The synthesized catalyst was characterized by X-Ray Fluorescence Spectrometer (XRF), X-ray powder diffraction (XRD), Scanning electron microscope (SEM), X-ray p...

journal_title：Environmental technology

authors： Li X,Yi L,Zhu Q,Zhao L,Xu Y,Liu M,Liu T,Wu Q

更新日期：2021-01-01 00:00:00

abstract：:The aim of this research was to develop an optimal reuse system applying various types of advanced oxidation processes such as titanium dioxide (TiO2), ozone (O3) and electro-coagulation/oxidation methods. This system is suitable for improving the treatment efficiency of difficult wastewaters, and for the efficient re...

journal_title：Environmental technology

authors： Chung H,Ku B,Gregory J

更新日期：2008-09-01 00:00:00

abstract：:The presence of benzene and phenol in the environment can lead to serious health effects in humans and warrant development of efficient cleanup strategies. The aim of the present work was to assess the potential of indigenous endophytic bacterial strains to degrade benzene and phenol. Seven strains were successfully i...

journal_title：Environmental technology

authors： Iqbal A,Arshad M,Hashmi I,Karthikeyan R,Gentry TJ,Schwab AP

更新日期：2018-07-01 00:00:00

abstract：:A soil-column system was tested for the removal of soluble organics and nutrients from partially treated liquid swine manure. The liquid manure was applied to the 900 mm deep (300 mm of local topsoil and 600 mm of local subsoil) soil columns continuously for an eight-week period, and leachate as well as soil samples w...

journal_title：Environmental technology

authors： Yang H,Xiao J,El-Din MG,Buchanan ID,Bromley D,Ikehata K

更新日期：2007-01-01 00:00:00

abstract：:Carbon-doped titanium dioxide photocatalyst with improved performance in visible light was prepared via the typical sol-gel method. Microcrystalline cellulose (MCC) was used as carbon elements source. The prepared pure and carbon-doped TiO2 samples were calcined at 400-650°C in air and the effect of annealing temperat...

journal_title：Environmental technology

authors： Habibi S,Jamshidi M

更新日期：2020-10-01 00:00:00

abstract：:The aim of this study was to investigate the individual and combined toxicity of dissolved copper-cadmium and mercury using the embriotoxicity test with Mytilus galloprovincialis. Adult stocks of Mytilus galloprovincialis were induced to spawn and early larvae were recorded after incubation of fertilized eggs in seawa...

journal_title：Environmental technology

authors： Prato E,Biandolino F

更新日期：2007-08-01 00:00:00

abstract：:Sedimentation dynamics of magnetite (γ-Fe3O4) nanopowder (10-20 nm) in water in a gradient magnetic field Bmax=0.3 T, (dB/dz)max=0.13 T/cm was studied for different water flow speeds and starting particle concentrations (0.1 and 1.0 g/l). The aggregates formation in water was monitored under the same conditions. In cy...

journal_title：Environmental technology

authors： Bakhteeva Iu,Medvedeva I,Byzov I,Zhakov S,Yermakov A,Uimin M,Shchegoleva N

更新日期：2015-07-01 00:00:00

abstract：:The effects of pure oxygen aeration on organic pollutants removal performance and effluent soluble microbial products (SMP) characteristics of salt-tolerant sludge for the treatment of wastewater with the salinity from 1.0% to 3.5% were investigated. The results showed that the oxygen transfer efficiency of the pure o...

journal_title：Environmental technology

authors： Zhang HL,Hu YQ,Zhang Y,Qin DN,Wang H

更新日期：2020-10-27 00:00:00

abstract：:As a consequence of a growing share of solar and wind power, recent research on biogas production highlighted a need for demand-orientated, flexible gas production to provide grid services and enable a decentralized stabilization of the electricity infrastructure. Two-staged anaerobic digestion is particularly suitabl...

journal_title：Environmental technology

authors： Krümpel JH,Illi L,Lemmer A

更新日期：2018-03-01 00:00:00

abstract：:This study is a first-hand report of the immobilization of Nauclea diderrichii seed waste biomass (ND) (an agro-waste) with eco-friendly mesoporous silica (MS) and graphene oxide-MS (GO + MS) nanoparticles, producing two new hybrid materials namely: MND adsorbent for agro-waste modified with MS and GND adsorbent for a...

journal_title：Environmental technology

authors： Omorogie MO,Babalola JO,Unuabonah EI,Gong JR

更新日期：2014-03-01 00:00:00

abstract：:Hydrophobic volatile methyl siloxanes (VMS), such as hexamethyldisiloxane (L2) and octamethylcyclotetrasiloxane (D4), present a low solubility in water. An alternative treatment by absorption into hydrophobic absorbents was therefore studied. For this purpose, three different absorbents, motor oil, cutting oil and a w...

journal_title：Environmental technology

authors： Rojas Devia C,Subrenat A

更新日期：2013-11-01 00:00:00

abstract：:The reductive dechlorination of tetrachloroethene (PCE) and trichloroethene (TCE) catalyzed by vitamin B12 was examined when zero valent metals (ZVMs) were used as bulk electron donors in batch reactors. UV-visible spectra showed that zinc reduces vitamin B12 Co(III) to vitamin B12 Co(I) through B12 Co(II) and iron re...

journal_title：Environmental technology

authors： Kim YH,Carraway ER

更新日期：2002-10-01 00:00:00

abstract：:A method of chemically bonding copper ferrocynide (CuFC) to the surface of a PVDF hollow-fibre membrane (PVDF-CuFC) was designed and the resulting PVDF-CuFC was applied to the effective removal of aqueous cesium (Cs). In order to chemically immobilize CuFC on the surface of the PVDF hollow-fibre membrane, carboxyl gro...

journal_title：Environmental technology

authors： Lee HK,Choi SJ

更新日期：2021-01-28 00:00:00

abstract：:Large volumes of saline (> 2% w/v NaCl) wastewaters are discharged from many industries; e.g. seafood processing, textile dyeing, oil and gas production, tanneries and drinking water treatment processes. Although anaerobic treatment would be the most cost-effective and sustainable technology for the treatment of many ...

journal_title：Environmental technology

authors： Xiao Y,Roberts DJ

更新日期：2010-07-01 00:00:00

abstract：:BiOBr nanosheets and BiOBr flower-like microspheres were prepared by hydrothermal method and solvothermal method, respectively. On this basis, BiOBr nanosheets were modified by reducing agent reduction, preparing successfully Bi/BiOBr nanosheets. The XRD, SEM, UV-VisDRS, XPS and UV-vis spectrophotometry were used to c...

journal_title：Environmental technology

authors： Gao Z,Yao B,Xu T

更新日期：2019-09-30 00:00:00