Evaluation of denitrification-nitrification biofilter systems in treating wastewater with low carbon: nitrogen ratios.

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：: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

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

更新日期：2009-01-01 00:00:00

abstract：:Currently, municipal and industrial wastewater treatment plants (WWTPs) are mainly focusing on reduction of biological oxygen demand and on the removal of nutrients. However, there are microorganisms that interfere with the process. In this environment, there is a large diversity of microorganisms that have not been s...

journal_title：Environmental technology

authors： Soler A,García-Hernández J,Zornoza A,Alonso JL

更新日期：2018-01-01 00:00:00

abstract：:Waste from textile industries can severely harm the environment. Dyes are the main residues of these effluents. Saccharomyces cerevisiae is already known to be an efficient adsorbent for the removal of dyes. However, the lack of applicability and limitation of the use of cell biomass in an industrial treatment makes i...

journal_title：Environmental technology

authors： Dilarri G,Corso CR

更新日期：2018-07-01 00:00:00

abstract：:Amino acids are at the origin of the formation of odourous compounds after chlorination treatment. Our objectives were to test the efficiency of a photocatalytic process to remove these types of compounds. Five amino acids (AA)-phenylalanine, tyrosine, tryptophan, glycine and alanine--have been chosen as model molecul...

journal_title：Environmental technology

authors： Elsellamia L,Pigeot-Rémy S,Dappozze F,Vocanson F,Houas A,Guillard C

更新日期：2010-12-01 00:00:00

abstract：:The demand for removal of refractory organic pollutants limits the application of microbial fuel cells. In this study, the synergistic effects of bioelectrochemical and photocatalysis methods were captured by constructing a biophoto anode from a combination of WO3/TiO2 and carbon felt. This biophoto electrode was able...

journal_title：Environmental technology

authors： Long X,Wang H,Wang C,Li X

更新日期：2020-11-01 00:00:00

abstract：:Dry and chemical torrefaction of sugar cane bagasse was examined in this study with the aim of stabilising and upgrading the fuel properties of bagasse. Dry torrefaction was conducted at temperatures from 160°C to 300°C under inert conditions, whilst chemical torrefaction incorporated a H2SO4 pre-treatment of bagasse....

journal_title：Environmental technology

authors： Valix M,Katyal S,Cheung WH

更新日期：2017-07-01 00:00:00

abstract：:The removal of fluoride is essential for water contaminated with fluoride before being utilized since the unsafe concentration of fluoride with respect to the permissible limits. In the present study, there are 61 bacterial strains belonging to fluoride tolerance were isolated from the contaminated soil of Dharmapuri ...

journal_title：Environmental technology

authors： Sakthi Thesai A,Rajakumar S,Ayyasamy PM

更新日期：2020-04-01 00:00:00

abstract：:This paper deals with the use of gasoline-methanol and gasoline-ethanol mixtures in a small four-stroke engine of internal combustion that is used for the movement of a small alternative generator. It was observed that CO and HC emissions decrease compared to gasoline when the percentage of methanol, ethanol in the fu...

journal_title：Environmental technology

authors： Arapatsakos CI,Karkanis AN,Sparis PD

更新日期：2003-09-01 00:00:00

abstract：:The emission of greenhouse gases, such as N2O, from wastewater treatment plants is a matter of growing concern. Denitrification by ammonia-oxidizing bacteria (AOB) has been identified as the main N2O producing pathway. To estimate N2O emissions during biological nitrogen removal, reliable mathematical models are essen...

journal_title：Environmental technology

authors： Mampaey KE,Beuckels B,Kampschreur MJ,Kleerebezem R,van Loosdrecht MC,Volcke EI

更新日期：2013-05-01 00:00:00

abstract：:In this study we have investigated whether electron acceptors, such as nitrate or sulphate ions, competitively inhibit the reduction of perchlorate in brine in continuous up-flow packed bed bioreactors. The effect of pH and hydraulic retention time (HRT) on the reduction of perchlorate at high salinity has also been e...

journal_title：Environmental technology

authors： Chung J,Shin S,Oh J

更新日期：2010-05-01 00:00:00

abstract：:Sediment borne pesticides are one of the major routes of transport of pesticides into the aquatic environment and could affect biota living closely in contact with it. Sediment residues of DDT were found to be easily adsorbed (95.0%) and were released in hard water (8.4%) and seawater (0.1%). DDT and DDE sediment resi...

journal_title：Environmental technology

authors： Bajet CM,Navarro MP

更新日期：2002-11-01 00:00:00

abstract：:Separation of nanoscale oil droplets in the cutting-oil emulsion by electrocoagulation-flotation (ECF) was carried out in a bubble column reactor (BCR) and an external-loop airlift reactor (ALR). Under the batch operation, aluminium electrode provided the highest efficiency of 99% and required the shortest separating ...

journal_title：Environmental technology

authors： Chawaloesphonsiya N,Prommajun C,Wongwailikhit K,Painmanakul P

更新日期：2017-05-01 00:00:00

abstract：:Mecoprop-p herbicide is often found in wells and water abstractions in many areas around Europe, the UK inclusive. There is a growing environmental and public health concern about mecoprop-p herbicide pollution in ground and surface water in England. Reviews suggest that extensive work has been carried out on the cont...

journal_title：Environmental technology

authors： Idowu IA,Alkhaddar RM,Atherton W

更新日期：2014-08-01 00:00:00

abstract：:The photocatalytic degradation of p-coumaric acid, a biorecalcitrant phenolic compound typically found in olive processing and wine distillery waste waters, has been investigated in aqueous heterogeneous solutions containing semiconductor powders as photocatalysts. The disappearance of the organic molecule follows app...

journal_title：Environmental technology

authors： Poulios I,Kyriacou G

更新日期：2002-02-01 00:00:00

abstract：:Five yeast strains, namely Rhodotorula rubra, Candida tropicalis, Candida utilis, Candida boidinii, Trichosporon cutaneum, were isolated from soil spots of a salad oil factory, and applied for continuous treatment of salad oil manufacturing wastewater. The oil and COD removal performance of the mixed cultures were com...

journal_title：Environmental technology

authors： Zheng S,Yang M,Lv W,Liu F

更新日期：2001-05-01 00:00:00

abstract：:Traffic is the major air pollution source in most urban areas. Nowadays, most of the strategies carried out to improve urban air quality are focused on reducing traffic emissions. Nevertheless, acting locally on urban design can also reduce levels of air pollutants. In this paper, both strategies are studied in severa...

journal_title：Environmental technology

authors： Acero JA,Simon A,Padro A,Santa Coloma O

更新日期：2012-10-01 00:00:00

abstract：:The mechanical and biological waste treatment (MBT) is an increasingly important technology for the treatment of municipal solid waste (MSW) before landfilling. This process includes composting of the material with intensive aeration in order to minimize the organic fraction that may induce methane and leachate emissi...

journal_title：Environmental technology

authors： Clemens J,Cuhls C

更新日期：2003-06-01 00:00:00

abstract：:A series of catalytic wet oxidation (CWO) reactions, at temperatures of 430-500 K and in a batch bench-top pressure vessel were carried out utilizing a strong wastewater composed of landfill leachate and heavily organic halogen polluted industrial wastewater. A CeO2-SiO2 mixed oxide catalyst with large surface area to...

journal_title：Environmental technology

authors： Goi D,de Leitenburg C,Trovarelli A,Dolcetti G

更新日期：2004-12-01 00:00:00

abstract：:Two phosphate-solubilizing bacterial strains were isolated and identified as Acinetobacter calcoaceticus YC-5a and Enterobacter agglomerans KMC-7 based on the 16S rRNA gene sequence analysis. A. calcoaceticus YC-5a is less well known as a phosphate-solubilizing plant-associated bacterium. The plant growth-promoting pr...

journal_title：Environmental technology

authors： Ren YX,Zhu XL,Fan DD,Ma P,Liang LH

更新日期：2013-01-01 00:00:00

abstract：:Endocrine disrupting chemicals and non-steroidal anti-inflammatory drugs are two important groups of emerging pollutants due to their toxicological and chemical characteristics and their persistent detection in the aquatic environment. Wastewater treatment plants are a significant pathway for their transfer to the wat...

journal_title：Environmental technology

authors： Noutsopoulos C,Mamais D,Mpouras T,Kokkinidou D,Samaras V,Antoniou K,Gioldasi M

更新日期：2014-03-01 00:00:00

abstract：:A highly sensitive and selective optical chemosensor (Arg-Rhoen) for determination of Au3+ was prepared by covalent immobilization of rhodamine ethylenediamine on agarose gel. Spectrophotometric studies of complex formation, chemical structures and purity of the hydrogel sensor were carried out using TGA, NMR, TEM, an...

journal_title：Environmental technology

authors： Kaewtong C,Wanich S,Wanno B,Tuntulani T,Pulpoka B

更新日期：2020-12-07 00:00:00

abstract：:The reaction between Fe2+ and H2O2 generates highly reactive ·OH. However, the weak conversion from Fe3+ to Fe2+ limits its continuous reaction. Here, the difference between the Fenton system and modified Fenton system for the regeneration of Fe2+ was analyzed. A UV-vis spectrometer and redox potential measurements we...

journal_title：Environmental technology

authors： Zhou W,Gao J,Zhao H,Meng X,Wu S

更新日期：2017-08-01 00:00:00

abstract：:In this paper, catalytic samples of 10, 20, 30, 40 and 50% (w/w) urea/activated carbon fibre (AFC), 10% urea--5% La2O3/ACF, 10% urea--10% La2O3/ACF, 10% urea--15% La2O3/ACF, 20% urea--5% La2O3/ACF, 20% urea--10% La2O3/ACF, and 20% urea-15% La2O3/ACF were prepared and used for removal of NO under the condition of: NO, ...

journal_title：Environmental technology

authors： Lu P,Zeng Z,Li C,Zeng G,Guo J,Jiang X,Zhai Y,Fan X

更新日期：2012-04-01 00:00:00

abstract：:The urban continuum, as it applies to sediments and associated contaminants, represents the area over/through which sediments are conveyed from a depositional or eroded surface to a treatment system and/or receiving water body. This study has focused on the changing physical characteristics of the sediment, with an em...

journal_title：Environmental technology

authors： Droppo IG,Irvine KN,Jaskot C

更新日期：2002-01-01 00:00:00

abstract：:Treatment of artificial wastewater containing a large amount of suspended solids comprised of soybean processing waste and pig fodder was studied using a novel multi-staged upflow anaerobic sludge blanket reactor. The reactor consisted of three compartments, each containing a gas solid separator. The wastewater had ch...

journal_title：Environmental technology

authors： Uemura S,Harada H,Ohashi A,Torimura S

更新日期：2005-12-01 00:00:00

abstract：:The deposition of noble metal on titanium dioxide (TiO2) has been considered as an effective strategy to improve the activity of TiO2. In this paper, TiO2 nanoparticles were prepared via a sol-gel route, followed by heat treatment at elevated temperatures. TiO2-Pt catalyst was prepared by deposition of platinum (Pt) o...

journal_title：Environmental technology

authors： Fan JW,Liu XH,Zhang J

更新日期：2011-02-01 00:00:00

abstract：:Slow-release organic carbon-source (SOC) material, a new kind of electron donor for in situ groundwater denitrification, was prepared and evaluated in this study. With starch as a biologically utilized carbon source and polyvinyl alcohol (PVA) as a frame, this material performed controllable carbon release rates and d...

journal_title：Environmental technology

authors： Zhang D,Zhang X,Wang Y,Zhou G,Li G

更新日期：2015-03-01 00:00:00

abstract：:Due to the diversified nature of municipal solid waste and the different stages of its decomposition, the formed leachates result in a complex chemical mixture with toxic potential. These chemicals can cause environmental problems, such as the contamination of surface or groundwater, thus affecting the balance of aqua...

journal_title：Environmental technology

authors： Barrios Restrepo JJ,Flohr L,Melegari SP,da Costa CH,Fuzinatto CF,de Castilhos AB Jr,Matias WG

更新日期：2017-11-01 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