Unexpected activity of magnetically separable Fenton catalyst in clay slurries.

Abstract:

:Maghemite/silica nanocomposite microspheres (γ-Fe2O3/SiO2 MS) have been tested as magnetically separable heterogeneous Fenton catalyst in beidellite clay slurries in the presence of methylorange (MO) as a model pollutant. Due to its strong magnetic susceptibility, the catalyst was easily recovered from the clay slurries by a selective magnetic sorting, even in highly concentrated slurries. The Fenton oxidation of MO was strongly enhanced in the clay slurries in comparison to the reaction in aqueous phase, highlighting a synergistic catalytic effect. The influence of different experimental parameters such as the presence of specific Reactive Oxygen Species (ROS) scavengers, pH, H2O2, catalyst and clay concentrations, on the catalytic activity was also evaluated. Contrary to what was observed in aqueous phase, generation of hydroxyl radicals via the Haber-Weiss mechanism was not the unique pathway that caused MO degradation in the beidellite slurries. We also observed that the synergistic effect is more marked at pH near neutrality and low amounts of H2O2 and clay. Furthermore, the unchanged activity of the catalyst during five successive cycles together with the low level of iron leaching, makes it suitable candidate for an application as a magnetic heterogeneous Fenton catalyst in wastewater treatment, especially for surface waters or sludges naturally containing fine clay particles.

journal_name

Environ Technol

journal_title

Environmental technology

authors

Boussouf I,Medjram MS,Ferroudj N,Abramson S

doi

10.1080/09593330.2019.1620865

subject

Has Abstract

pub_date

2021-01-01 00:00:00

pages

43-57

issue

1

eissn

0959-3330

issn

1479-487X

journal_volume

42

pub_type

杂志文章
  • Effects of domestic wastewater toxicity on anaerobic membrane-bioreactor (MBR) performances.

    abstract::An anaerobic membrane bioreactor (MBR) was operated for 367 days to treat domestic wastewater originating from the Sfax wastewater treatment plant. The results showed that the MBR was not very efficient because of the considerable fluctuations in the domestic wastewater composition and the presence of toxic compounds ...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330903100027

    authors: Saddoud A,Abdelkafi S,Sayadi S

    更新日期:2009-12-01 00:00:00

  • Adsorption equilibrium, kinetics and thermodynamics of dichloroacetic acid from aqueous solution using mesoporous carbon.

    abstract::The presence of disinfection by-products, such as trihalomethanes and haloacetic acids in water, is believed to be harmful to human health. In this work, mesoporous carbon was synthesized with the evaporation-induced self-assembly method and employed to evaluate the effects of initial concentration, contact time, pH a...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330.2014.889216

    authors: Ding Y,Zhu J,Cao Y,Chen S

    更新日期:2014-08-01 00:00:00

  • A grit separation module for inorganic matter removal from activated sludge: investigation on characteristics of split sludge from the module.

    abstract::A grit separation module was developed to prevent the accumulation of inorganic solids in activated sludge systems, and it achieved effective separation of organic matter and inorganic solids. To provide technical and theoretical support for further comprehensive utilization of split sludge (underflow and overflow slu...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330.2016.1181108

    authors: Chen YP,Guo JS,Wang J,Yan P,Ji FY,Fang F,Dong Y

    更新日期:2016-12-01 00:00:00

  • Field-scale electrolysis/ceramic membrane system for the treatment of sewage from decentralized small communities.

    abstract::The electrolysis process adopting copper electrodes and ceramic membrane with pore sizes of 0.1-0.2 μm were consisted to a system for the treatment of sewage from decentralized small communities. The system was operated under an HRT of 0.1 hour, voltage of 24 V, and TMP of 0.05 MPa. The system showed average removals ...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330.2017.1345988

    authors: Son DJ,Kim WY,Yun CY,Kim DG,Chang D,Sunwoo Y,Hong KH

    更新日期:2018-08-01 00:00:00

  • Effects of pure oxygen aeration on organic pollutants removal performance and soluble microbial products characteristics of salt-tolerant activated sludge.

    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

    pub_type: 杂志文章

    doi:10.1080/09593330.2020.1838622

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

    更新日期:2020-10-27 00:00:00

  • Effect of the chemical oxidation demand to sulfide ratio on sulfide oxidation in microbial fuel cells treating sulfide-rich wastewater.

    abstract::This work focused on studying the effect of the chemical oxidation demand to sulfide ratio (COD/S) on power generation and sulfide oxidation in microbial fuel cells treating sulfide-rich wastewater containing organic contaminants. The maximum power density achieved was 20 +/- 1 W m(-3) V(Anode) and the C(oulombic) yie...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330.2012.692715

    authors: Zhang L,Mao Y,Ma J,Li D,Shi H,Liu Y,Cai L

    更新日期:2013-01-01 00:00:00

  • Evaluation of on-farm biological treatment processes for wastewaters from vegetable peeling.

    abstract::This study highlights the need for the development of simple, efficient, and cost-effective farm-scale applications to treat wastewater arising from vegetable-peeling operations. The aim was to evaluate two full-scale biological wastewater treatment systems, a sequencing batch reactor (SBR) and a biofilter, and a chem...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330802417019

    authors: Lehtoa M,Sipilä I,Sorvala S,Hellstedt M,Kymäläinen HR,Sjöberg AM

    更新日期:2009-01-01 00:00:00

  • A field based evaluation of household arsenic removal technologies for the treatment of drinking water.

    abstract::Seven household treatment technologies for the removal of arsenic (Alcan, BUET, DPHE/DANIDA, Garnet, Sono, Stevens, Tetrahedron) were each evaluated using water from 63 different tube wells taken from 3 different regions of Bangladesh. The technologies that were evaluated were chosen from those that appeared user frie...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593332508618444

    authors: Sutherland D,Swash PM,Macqueen AC,McWilliam LE,Ross DJ,Wood SC

    更新日期:2002-12-01 00:00:00

  • Pollution reduction by recirculated fill-and-drain mesocosm wetlands packed with woodchip/pumice treating impervious road stormwater.

    abstract::Constructed wetlands (CWs) are natural-friendly method to eliminate the pollutants stormwater pollutants. For this study, a pilot-scale treatment system consisting of a sedimentation tank (ST) and five recirculated fill-and-drain wetlands (namely CW-1, CW-2, CW-3, CW-4 and CW-5) were constructed to treat the first-flu...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330.2018.1543356

    authors: Niu S,Wang X,Yu J,Kim Y

    更新日期:2020-05-01 00:00:00

  • Efficient removal of crystal violet dye from aqueous solutions by vitreous tuff mineral.

    abstract::Textural, structural and morphological characteristics of the vitreous tuff were determined by means of several physicochemical techniques. The nitrogen adsorption isotherm at 77 K was fitted with the Brunnauer-Emmet-Teller model and together with the results of the average pore distribution showed a mesoporous materi...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330.2013.871352

    authors: Blanco-Flores A,Colín-Cruz A,Gutiérrez-Segura E,Sánchez-Mendieta V,Solís-Casados DA,Garrudo-Guirado MA,Batista-González R

    更新日期:2014-05-01 00:00:00

  • Recovery of valuable soluble compounds from washing waters generated during small fatty pelagic surimi processing by membrane processes.

    abstract::This work focuses on the treatment of washing waters coming from surimi manufacturing using ultrafiltration technology at a laboratory scale. Four membrane materials (poly-ether sulfone, polyacrilonytrile, poly vinylidene fluoride and regenerated cellulose) and 5 Molecular Weight Cut-Off (from 3 to 100 kDa) have been ...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330801983912

    authors: Dumay J,Radier S,Barnathan G,Bergé JP,Jaouen P

    更新日期:2008-04-01 00:00:00

  • Spirulina platensis biomass composition is influenced by the light availability and harvest phase in raceway ponds.

    abstract::The behavior of cyanobacteria and its potential use for biofuel production in scale-up conditions is a topic of growing importance. The aim of our work is to study the effects of illumination, stirring, and different growth phases on the cultivation of the cyanobacteria Spirulina platensis in 10 L raceways. The cultiv...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330.2017.1340352

    authors: Magro FG,Margarites AC,Reinehr CO,Gonçalves GC,Rodigheri G,Costa JAV,Colla LM

    更新日期:2018-07-01 00:00:00

  • Nitrogen removal and nitrous oxide emission from a step-feeding multiple anoxic and aerobic process.

    abstract::The multiple anoxic and aerobic (AO) process is an advanced biological nitrogen-removal process, and nitrous oxide (N2O) emission might affect its sustainable application. Nitrogen removal and N2O emission in a step-feeding multiple AO sequencing batch reactor (SBRS) was examined, in comparison with a one-feeding sequ...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330.2017.1311947

    authors: Sun Y,Wang H,Wu G,Guan Y

    更新日期:2018-04-01 00:00:00

  • Nano-fumed silica as a novel pollutant that inhibits the algicidal effect of p-hydroxybenzoic acid on Microcystis aeruginosa.

    abstract::Nanomaterials and/or contaminants are becoming more common in the developing world, but their effects on interspecific interactions are rarely reported, particularly in aquatic ecosystems. Thus, the present study determined the effects of the novel pollutant nano-fumed silica (NFS) on algal control by a macrophyte via...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330.2017.1404135

    authors: Jiang X,Zuo S,Ye L,Hong W

    更新日期:2019-02-01 00:00:00

  • Degradation of halogenated benzenes in solution by electron beam irradiation method.

    abstract::In this work, the dehalogenation and degradation of halogenated benzenes (chlorobenzenes, bromobenzene) under electron beam radiation were investigated. Several factors affected the degradation of halogenated benzenes by the electron beam radiation method, such as the dose of the electron beam, the initial pH value of...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330802468954

    authors: Wu M,Shi W,Wang Y,Jiao Z,Wang J,Ding G,Fu J

    更新日期:2009-02-01 00:00:00

  • Bacterial community changes with N'-N' dimethylforamide (DMF) additives during polycyclic aromatic hydrocarbons (PAH) biodegardation.

    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...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593332708618613

    authors: Chang YT,Lee JF,Chao HP,Liao WL

    更新日期:2006-01-01 00:00:00

  • Synthesis of manganese-tin oxide microparticles by the solvothermal method and study of application as a catalyst and additive.

    abstract::Manganese-tin bimetallic oxide (MnSnO3) is synthesized by the solvothermal approach using manganese acetate and stannic chloride as precursors and urea as a precipitating agent in an aqueous medium. The crystallinity, purity and lattice parameters of the product are analysed by the X-ray diffraction analysis. The morp...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330.2019.1660414

    authors: Khan SR,Naeem A,Jamil S,Islam Aqib A,Ashraf Janjua MRS

    更新日期:2019-08-29 00:00:00

  • Microemulsion-enhanced remediation of soils contaminated with organochlorine pesticides.

    abstract::Soil contaminated by organic pollutants, especially chlorinated aromatic compounds such as DDT (1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane), is an environmental concern because of the strong sorption of organochlorine pesticide onto the soil matrix and persistence in the environment. The remediation of organochlori...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330.2011.568009

    authors: Zhang Y,Wong JW,Zhao Z,Selvam A

    更新日期:2011-12-01 00:00:00

  • Filtration capacity on rapid filters and adsorption characteristics of polystyrene granules.

    abstract::Polystyrene (PS) beads have been studied as a possible filter element, with the aim of increasing the effective production of water in treatment plants. Being a granular material of an effective size of 0.68 mm, sphericity of 0.96 and density of 1046 kg/m3, the use of PS beads may provide washing water savings because...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330.2016.1244569

    authors: Schöntag JM,Moreira FM,Sens ML

    更新日期:2017-08-01 00:00:00

  • EDTA leaching of copper from contaminated soils: experimental study and transport model application for parameters estimation.

    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

    authors: Di Palma L,Ferrantelli P,Pitzolu I,Verdone N

    更新日期:2005-02-01 00:00:00

  • Treatment of heavy oil wastewater by UASB-BAFs using the combination of yeast and bacteria.

    abstract::A novel system integrating an upflow anaerobic sludge blanket (UASB) reactor and a two-stage biological aerated filter (BAF) system was investigated as advanced treatment of heavy oil wastewater with large amounts of dissolved recalcitrant organic substances and low levels of nitrogen and phosphorus nutrients. #1 BAF,...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330.2015.1030346

    authors: Zou XL

    更新日期:2015-01-01 00:00:00

  • Nutrients' distribution and their impact on Pangani River Basin's ecosystem - Tanzania.

    abstract::Surface and groundwater from Pangani River Basin (PRB) were sampled in dry and wet seasons, analysed for dissolved organic and inorganic nutrients (N, P, Si and Urea). There was spatial and seasonal nutrients' variability, with enrichment of dissolved inorganic fractions accumulated from natural and anthropogenic sour...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330.2017.1310305

    authors: Selemani JR,Zhang J,Muzuka ANN,Njau KN,Zhang G,Mzuza MK,Maggid A

    更新日期:2018-03-01 00:00:00

  • Electrochemical treatment of cork boiling wastewater with a boron-doped diamond anode.

    abstract::Anodic oxidation at a boron-doped diamond anode of cork boiling wastewater was successfully used for mineralization and biodegradability enhancement required for effluent discharge or subsequent biological treatment, respectively. The influence of the applied current density (30-70 mA/cm2) and the background electroly...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330.2014.934743

    authors: Fernandes A,Santos D,Pacheco MJ,Ciríaco L,Simões R,Gomes AC,Lopes A

    更新日期:2015-01-01 00:00:00

  • Filterability of exopolysaccharides solutions from the red microalga Porphyridium cruentum by tangential filtration on a polymeric membrane.

    abstract::The red microalga Porphyridium cruentum is exploited industrially for its exopolysaccharides (EPS) and pigments production. EPS produced by P. cruentum are partially released and dissolved into the surrounding environment, they can be recovered from the culture medium after removing the cells. This paper presents a pa...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330.2018.1523234

    authors: Zaouk L,Massé A,Bourseau P,Taha S,Rabiller-Baudry M,Jubeau S,Teychené B,Pruvost J,Jaouen P

    更新日期:2020-04-01 00:00:00

  • [Treatment of tannery wastewater by infiltration percolation: chromium removal and speciation in soil].

    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

    pub_type: 杂志文章

    doi:10.1080/09593330801983888

    authors: Tiglyene S,Jaouad A,Mandi L

    更新日期:2008-06-01 00:00:00

  • Absorption of a linear (L2) and a cyclic (D4) siloxane using different oils: application to biogas treatment.

    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

    pub_type: 杂志文章

    doi:10.1080/09593330.2013.804588

    authors: Rojas Devia C,Subrenat A

    更新日期:2013-11-01 00:00:00

  • Performance evaluation and modelling studies of gravel--coir fibre--sand multimedia stormwater filter.

    abstract::A horizontal flow multimedia stormwater filter was developed and tested for hydraulic efficiency and pollutant removal efficiency. Gravel, coconut (Cocos nucifera) fibre and sand were selected as the media and filled in 1:1:1 proportion. A fabric screen made up of woven sisal hemp was used to separate the media. The a...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330.2012.660642

    authors: Samuel MP,Senthilvel S,Tamilmani D,Mathew AC

    更新日期:2012-09-01 00:00:00

  • Evolution of microbial aerosol behaviour in heating, ventilating and air-conditioning systems--quantification of Staphylococcus epidermidis and Penicillium oxalicum viability.

    abstract::The aim of this study was to develop an experimental set-up and a methodology to uniformly contaminate several filter samples with high concentrations of cultivable bacteria and fungi. An experimental set-up allows contaminating simultaneously up to four filters for range of velocities representative of heating, venti...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330.2012.728731

    authors: Forthomme A,Andrès Y,Joubert A,Simon X,Duquenne P,Bemer D,Le Coq L

    更新日期:2013-03-01 00:00:00

  • Comparison of protease activities in different Bacillus licheniformis strains using wastewater sludge and synthetic soy medium as raw material.

    abstract::The production of extracellular protease by different Bacillus licheniformis strains (ATCC 21415, ATCC 21417 and ATCC 21424) was tested in wastewater sludge as a raw material as well as in synthetic soy medium to compare the capacity of protease production by different strains and to compare the capacity of the medium...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330903338429

    authors: Bezawada J,Yan S,Tyagia RD,Surampalli RY

    更新日期:2010-01-01 00:00:00

  • A preliminary study on Jatropha curcas as coagulant in wastewater treatment.

    abstract::Many coagulants, mainly inorganic, are widely used in conventional water and wastewater treatment. Recent studies reported the occurrence of some chronic diseases associated with residual coagulant in treated wastewater. The use of alternative coagulants which are biodegradable and environmentally friendly could allev...

    journal_title:Environmental technology

    pub_type: 杂志文章

    doi:10.1080/09593330.2010.521955

    authors: Abidin ZZ,Ismail N,Yunus R,Ahamad IS,Idris A

    更新日期:2011-07-01 00:00:00