Performance of two small subsurface flow constructed wetlands treating domestic wastewaters in Italy.

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

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

更新日期：2005-02-01 00:00:00

abstract：:A novel nanocomposite (NC) based on magnetite nanoparticles (Fe3O4-NPs) immobilized on the surface of a cationic exchange polymer, C100, using a modification of the co-precipitation method was developed to obtain magnetic NCs for phosphate removal and recovery from water. High-resolution transmission electron microsco...

journal_title：Environmental technology

authors： Abo Markeb A,Alonso A,Dorado AD,Sánchez A,Font X

更新日期：2016-08-01 00:00:00

abstract：:To access the effects of the surface modification and fabric structure of polyethylene (PE) non-woven fabric sheets on retaining the attachment efficiency of anammox biomass, three different non-woven sheets were prepared and inserted in an anammox reactor. The hydrophobic surface modification with 10% KMnO4 and gelat...

journal_title：Environmental technology

authors： Cho S,Jung M,Ju D,Lee YH,Cho K,Okabe S

更新日期：2018-10-01 00:00:00

abstract：:To enhance the stability and efficiency of an anaerobic process, the influences of fluid dynamics on the performance of anaerobic digestion and sludge granulation were investigated using computational fluid dynamics (CFD). Four different propeller speeds (20, 60, 100, 140 r/min) were adopted for anaerobic digestion of...

journal_title：Environmental technology

authors： Wang F,Zhang C,Huo S

更新日期：2017-05-01 00:00:00

abstract：:Stringent water treatment criteria and rapidly growing pollutant loads provoke the demand for retrofitting wastewater treatment plants towards a higher capacity. In this study, we assess a two stage alternating aeration (AA) bioreactor equipped with electroflotation (EF) clarifier, for nitrogen removal within a short ...

journal_title：Environmental technology

authors： Cho K,Chung CM,Kim YJ,Hoffmann MR,Chung TH

更新日期：2013-09-01 00:00:00

abstract：:Bisphenol A (BPA) is a kind of a controversial endocrine disruptor, and is ubiquitous in environment. The degradation of BPA with the heterogeneous photo-Fenton system was demonstrated in this study. The Fe-Y molecular sieve catalyst was prepared with the ion exchange method, and it was characterized by X-ray radiatio...

journal_title：Environmental technology

authors： Jiang C,Xu Z,Guo Q,Zhuo Q

更新日期：2014-03-01 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：: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

authors： Khan FI,Abbasi SA

更新日期：2002-07-01 00:00:00

abstract：:Surface transfer and bubble transfer both contribute significantly to oxygen transfer in a diffused aeration system. In the present study, liquid-film-forming apparatus is successfully developed on a laboratory scale to improve considerably the surface transfer via the unique liquid film transfer technique. The experi...

journal_title：Environmental technology

authors： Zhu H,Imai T,Tani K,Ukita M,Sekine M,Higuchi T,Zhang ZJ

更新日期：2007-05-01 00:00:00

abstract：:In the coal slurry scrubbing process, SO2 can be removed through both the coal pyrite leaching reaction and the oxidation reactions catalysed by Fe2+/Fe3+ produced in situ. In the present study, experiments of SO2 removal with coal slurry (particle size fraction 65-150 microm) were carried out using a double-stirred v...

journal_title：Environmental technology

authors： Sun W,Wang L,Liu J,Wang L,Zhang Y

更新日期：2013-09-01 00:00:00

abstract：:The effect of the addition of trace elements on the conversion of a mixture of volatile fatty adds (Acetate, Propionate, Butyrate, in a ratio 3:1:1) by anaerobic granular sludge was investiated. Two Upflow Anaerobic Sludge Bed reactors (pH 7, ranging 30 degrees C) were operated for 140 days at an organic loading rate ...

journal_title：Environmental technology

authors： Osuna MB,Zandvoort MH,Iza JM,Lettinga G,Lens PN

更新日期：2003-05-01 00:00:00

abstract：:Canada's agricultural emissions accounted for 60 Mt or 8% of national greenhouse gas (GHG) emissions in 2007. The estimation of CH4 emission factor (B0) from manure management systems in Canada is prone to uncertainty owing to lack of B0 values for Canadian conditions. Therefore, in this study, manure samples from six...

journal_title：Environmental technology

authors： Godbout S,Verma M,Larouche JP,Potvin L,Chapman AM,Lemay SP,Pelletier F,Brar SK

更新日期：2010-11-01 00:00:00

abstract：:The destabilization of a microbial population is sometimes hard to solve when different biological reactions are coupled in the same reactor as in sequencing batch reactors (SBRs). This paper will try to guide through practical experiences the recovery of simultaneous nitrogen and phosphorus removal in an SBR after in...

journal_title：Environmental technology

authors： Coma M,Puig S,Monclús H,Balaguer MD,Colprim J

更新日期：2010-03-01 00:00:00

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

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

abstract：:Atrazine is an herbicide which is widely applied in sugarcane and corn crops. Its frequent use has resulted in environmental impacts, and its traces have been verified in surface and groundwater. Thus, it is necessary to remove this pollutant, and an alternative is the adsorption due to its universal nature, low-cost ...

journal_title：Environmental technology

authors： Cusioli LF,Bezerra CO,Quesada HB,Alves Baptista AT,Nishi L,Vieira MF,Bergamasco R

更新日期：2019-08-14 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 utilization of foul condensate (FC) collected from a Kraft pulp mill for the anaerobic production of volatile fatty acids (VFA) was tested in upflow anaerobic sludge blanket (UASB) reactors operated at 22, 37 and 55°C at a hydraulic retention time (HRT) of ∼75 h. The FC consisted mainly of 11370, 500 and 592 mg/L ...

journal_title：Environmental technology

authors： Eregowda T,Kokko ME,Rene ER,Rintala J,Lens PNL

更新日期：2020-01-13 00:00:00

abstract：:Methane in a simulated biogas converting to methanol under aerobic condition was comparatively assessed by inhibiting the activity of methanol dehydrogenase (MDH) of Methylosinus sporium using phosphate, NaCl, NH4Cl or EDTA in their varying concentrations. The highest amount of methane was indistinguishably diverted a...

journal_title：Environmental technology

authors： Yoo YS,Han JS,Ahn CM,Kim CG

更新日期：2015-03-01 00:00:00

abstract：:A new approach to the simultaneous removal of SO2 and NO from flue gas, by TiO2 photocatalysis based on UV irradiation technology, is presented. Experiments on the simultaneous desulphurization and denitrification were carried out using this photocatalyst in a self-designed photocatalytic reactor. Under the optimal ex...

journal_title：Environmental technology

authors： Zhao Y,Han J,Shao Y,Feng Y

更新日期：2009-12-14 00:00:00

abstract：:A new fed-batch reactor was developed to conduct aerobic biodegradation studies. Its unique feature lies in the ability to self-regulate feed addition, according to the evolution of the degradation process, which is proportional to gaseous products formed, mainly CO2. The reactor is particularly well suited to evaluat...

journal_title：Environmental technology

authors： Santana FJ,Sequeira AS

更新日期：2002-09-01 00:00:00

abstract：:Cu2O/hollow mesoporous silica (HMS) composite was synthesized using HMS as supporting material by the impregnation method. This composite displayed integrated physicochemical performance of Cu2O and HMS, resulting in low density, large surface area and excellent dispersibility. The synthesized nano-sized composite of ...

journal_title：Environmental technology

authors： Wang J,Xiao W,Teng H,Yin H,Chen X,Jiang X,Huo C,Teng M,Ma S,Al-Haimi AANM

更新日期：2020-07-01 00:00:00

abstract：:Accidental water basin pollution seriously threatens human health and ecological security, but rapid, effective methods for evaluating this threat are lacking. This paper aims to develop a risk evaluation method for basin accidents by coupling the risk source with sensitive targets to evaluate the zone accident risk l...

journal_title：Environmental technology

authors： Li Z,Zeng B,Zhou T,Li G,Zhu X

更新日期：2016-01-01 00:00:00

abstract：:There is considerable interest in recuperative thickening (RT), the recycling of partially digested solids in an anaerobic digester outlet stream back into the incoming feed, as a 'high-performance' process to increase biogas production, increase system capacity, and improve biosolids stabilization. While polymer floc...

journal_title：Environmental technology

authors： Cobbledick J,Zhang V,Rollings-Scattergood S,Latulippe DR

更新日期：2017-11-01 00:00:00

abstract：:Herbal Pharmaceutical wastewater was subjected to physico-chemical treatment using conventional coagulants individually and in combination with different anionic, cationic and nonionic polyelectrolytes. Results indicate cationic polyelectrolyte to be the best polymer. Individually Alum did not give good results but Al...

journal_title：Environmental technology

authors： Vanerkar AP,Satyanarayan S,Dharmadhikari DM

更新日期：2005-04-01 00:00:00

abstract：:Combustion processes are known to produce organic micro-pollutants in the flue gas at concentrations ranging over several orders of magnitude. Some organic micro-pollutants are suspected of being pseudo-estrogens and as such they can affect the public health. In this study, the possible application of the yeast based ...

journal_title：Environmental technology

authors： Muthumbi W,De Boever P,D'Haese I,D'Hooge W,Top EM,Pieters JG,Comhaire F,Verstraete W

更新日期：2002-03-01 00:00:00

abstract：:Dual-chamber microbial fuel cells (MFCs), made of clayware cylinder, were operated at different chemical oxygen demands: ammonium-nitrogen (COD:NH4+) ratio (1:1, 10:1 and 5:1) under batch mode for simultaneous removal of ammonia and organic matter from wastewater. Ammonium-N removal efficiencies of 63-32.66% were obta...

journal_title：Environmental technology

authors： Jadhav DA,Ghangrekar MM

更新日期：2015-03-01 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：:The assessment of vermicompost (VC) as a low-cost and alternative adsorbent for the removal of the pesticide methylparathion (MP) from an aqueous medium has been investigated by batch and column experiments. Parameters related to MP adsorption, i.e. equilibrium time (61.5 min) and adsorption pH (6.8) were optimized by...

journal_title：Environmental technology

authors： Mendes CB,Lima Gde F,Alves VN,Coelho NM,Dragunski DC,Tarley CR

更新日期：2012-01-01 00:00:00

abstract：:This paper presented the influence of Al(III) on biodegradability, micromorphology, composition and functional groups characteristics of the biofilm extracellular polymeric substances (EPS) during different growth phases. The sequencing batch biofilm reactors were developed to cultivate biofilms under different Al(III...

journal_title：Environmental technology

authors： Hu X,Yang L,Lai X,Yao Q,Chen K

更新日期：2019-01-01 00:00:00

abstract：:Moringa oleifera extract is a high-capacity flocculant agent for turbidity removal in surface water treatment. A complete study of a pilot-plant installation has been carried out. Because of flocculent sedimentability of treated water, a residual turbidity occured in the pilot plant (around 30 NTU), which could not be...

journal_title：Environmental technology

authors： Beltrán-Heredia J,Sánchez-Martín J

更新日期：2009-05-01 00:00:00