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

abstract：:Partial nitritation is an essential first step in anaerobic ammonium oxidation. This study compared the performance of air-lift partial nitritation reactors with attached growth (AG) and suspended growth (SG) without biomass retention using ammonium-rich recirculated liquor produced from the dewatering of anaerobicall...

journal_title：Environmental technology

authors： Choi J,Ahn Y

更新日期：2014-05-01 00:00:00

abstract：:Phosphorus recovery from wastewater is a focus area in Denmark; the aim is to recover at least 80% of the phosphorus. In order to extract phosphorus, surplus sludge from wastewater treatment plants was acidified (pH 2-4) to increase the dissolved phosphorus concentration, which then can be precipitated and recovered. ...

journal_title：Environmental technology

authors： Quist-Jensen CA,Wybrandt L,Løkkegaard H,Antonsen SB,Christensen ML

更新日期：2020-09-01 00:00:00

abstract：:This study aims to prepare environmentally friendly iron catalysts supported on silica, using glycerol as green reducing and stabilizing agent, for application in heterogeneous Fenton degradation of the pollutant dye methyl orange (MO). The catalysts were characterized by X-ray powder diffraction, atomic absorption sp...

journal_title：Environmental technology

authors： Trotte NSF,Alzamora M,Sánchez DR,Carvalho NMF

更新日期：2018-11-01 00:00:00

abstract：:Treatment of wastewater containing phenol using laboratory scale waste stabilisation ponds enriched with activated sludge was studied. After enrichment, the efficiency of these ponds under high phenol loading rates (i.e. up to 408 kg phenol ha(-1) day(-1)) was studied. At phenol loading rates of 6, 52, 312, 636 and 97...

journal_title：Environmental technology

authors： Avelar FJ,Martínez-Pereda P,Thalasso F,Rodríguez-Vázquez R,Alba J,Esparza-García FJ

更新日期：2003-04-01 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

authors： Zambrano J,Park H,Min B

更新日期：2020-10-01 00:00:00

abstract：:Municipal and agricultural waste, and sludge from wastewater treatment represent a large source of pollution. Gaseous fuels can be produced from waste decomposition and then used to run internal combustion engines for power and heat generation. The present paper focuses on thermal efficiency and environmental performa...

journal_title：Environmental technology

authors： Bilcan A,Le Corre O,Delebarre A

更新日期：2003-09-01 00:00:00

abstract：:The textile industry can benefit from the use of microcapsules, both adding value to products through the production of technical or functional textiles and improving the processes in the production chain. Some applications have been widely explored in academic research, but many are not feasible for use in industrial...

journal_title：Environmental technology

authors： Granato MA,Gaspar TM,Alves AF,de Souza AAU,Ulson de Souza SMAG

更新日期：2019-01-01 00:00:00

abstract：:The pollution of lake sediments by organic micro-pollutants has been of growing environmental concern due to their suspected long-term effects on both human health and the surrounding ecosystem. In this research, in order to investigate and evaluate the micro-organic pollution in lake sediments, an analytical methodol...

journal_title：Environmental technology

authors： Shimzu Y,Matsui S,Harada J

更新日期：2003-07-01 00:00:00

abstract：:The clay soil in the middle and lower reaches of the Yangtze River in China is widely distributed and the groundwater table is shallow. In order to accurately analyze the distribution and assess the potentially harmful effects of the pollutants in this region, it's necessary to study the diffusion rate and subsequent ...

journal_title：Environmental technology

authors： Gao C,Guo X,Shao S,Wu J

更新日期：2020-05-23 00:00:00

abstract：:The photocatalytic degradation of an antibiotic, vancomycin B hydrochloride (VAN-B), has been investigated in aqueous suspensions of titanium dioxide (TiO2) by monitoring the change in its concentration as well as the production of ammonia and chlorides as a function of irradiation time. The removal of 50mg L(-1) VAN-...

journal_title：Environmental technology

authors： Lofrano G,Carotenuto M,Uyguner-Demirel CS,Vitagliano A,Siciliano A,Guida M

更新日期：2014-05-01 00:00:00

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

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

abstract：:When treating a composite mustard tuber wastewater with high concentrations of salt (about 20 g Cl(-) L(-1)) and organics (about 8000 mg L(-1) COD) by an anaerobic sequencing batch biofilm reactor (ASBBR) in winter, both high salinity and low temperature will inhibit the activity of anaerobic microorganisms and lead t...

journal_title：Environmental technology

authors： He Q,Kong XJ,Chai HX,Fan MY,Du J

更新日期：2012-07-01 00:00:00

abstract：:Black carbon (BC) particles were removed from experimental flue gas by the surfactant solutions of sodium dodecylbenzene sulfonate (SDBS), hexadecyl trimethyl ammonium bromide (CTAB), fatty alcohol polyoxyethylene ether-9 (AEO-9) and polyoxy ethrlene nonyl phinyl ether-10 (TX-10), as well as AEO-9-SDBS, AEO-9-CTAB and...

journal_title：Environmental technology

authors： Lu P,Li C,Zeng G,Zhao Y,Zhan Q,Song J,Fan X

更新日期：2013-01-01 00:00:00

abstract：:Ce/TiO2-SiO2 catalysts with different Ti/Si molar ratios are prepared by the incipient impregnation method and their NH3-SCR activities are evaluated at 100-500°C on a fixed reactor. The Ce/TiO2-SiO2 (3/1) catalyst, modified by non-thermal plasma (NTP) treatment and then activated by thermal treatment at 500°C for 4 h...

journal_title：Environmental technology

authors： Chen K,Chen R,Cang H,Mao A,Tang Z,Xu Q

更新日期：2018-07-01 00:00:00

abstract：:The aim of the study was to determine the biogas productivity from selected cultivars of sorghum (Sorghum bicolor Moench) and maize (Zea mays L.) depending on the dose of mineral fertilization with nitrogen. The topic is novelty in the northern Poland area due to the fact that this crop is not very widespread here. Th...

journal_title：Environmental technology

authors： Kuglarz K,Bury M,Kasprzycka A,Lalak-Kańczugowska J

更新日期：2020-09-01 00:00:00

abstract：:The efficiency of the up-flow anaerobic sludge blanket (UASB) reactor is quite low for the treatment of low strength wastewaters (LSWs) due to less biogas production leading to poor mixing. LSW may be treated efficiently by providing adequate mixing in the UASB reactor when gas production is low, and sufficient mixing...

journal_title：Environmental technology

authors： Das S,Chaudhari S

更新日期：2015-01-01 00:00:00

abstract：:A series of bench-scale nitrification/denitrification tests were carried out with both suspended growth and hybrid bioreactors. The hybrid reactor was filled with plastic (polyethylene) media to evaluate the effects of biofilm. Two types of reactor configurations were tested; 4-compartment and 6-compartment modes. The...

journal_title：Environmental technology

authors： Seok JH,Komisar SJ

更新日期：2003-01-01 00:00:00

abstract：:Currently available pore water samplers generally do not allow continuous monitoring of temporal variations in pore water composition. Therefore, a new type of pore water collector was designed and constructed. These collectors were constructed of polyvinyl chloride (PVC) materials, including PVC tubing with one end s...

journal_title：Environmental technology

authors： Gao F,Deng J,Li Q,Hu L,Zhu J,Hang H,Hu W

更新日期：2012-01-01 00:00:00

abstract：:Phosphorus is the key element to remove from aquatic environments to limit the growth of aquatic plants and algae and, thus, to control eutrophication. Because the upflow sludge blanket filtratio' (USBF) process, without addition of metal salts, entails low efficiency for phosphorus removal, we added an anaerobic reac...

journal_title：Environmental technology

authors： Khorsandi H,Movahedyan H,Bina B,Farrokhzadeh H

更新日期：2011-04-01 00:00:00

abstract：:Direct biofiltration of surface water may be considered as pre-treatment for membrane filtration, in order to reduce fouling. The biofiltration process was investigated with regard to biodegradable organic matter and biofilm formation, covering the annual variations under moderately cold climate conditions. Granular a...

journal_title：Environmental technology

authors： Persson F,Heinicke G,Uhl W,Hedberg T,Hermansson M

更新日期：2006-09-01 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：:Surfactants are widely used and discharged into wastewater treatment plants, which might influence the anaerobic digestion (AD) treatment of municipal waste. In this study, the effects of typical anionic surfactants sodium dodecyl benzene6 sulfonate (SDBS) and non-ionic surfactants APG, on mesophilic anaerobic co-dige...

journal_title：Environmental technology

authors： Sun J,Zhang Y,Pan X,Zhu G

更新日期：2019-08-01 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

authors： Rahman RA,Molla AH,Barghash HF,Fakhru'l-Razi A

更新日期：2016-01-01 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：:In the present paper, the removal of aniline by adsorption process onto granular activated carbon (GAC) is reported from aqueous solutions containing catechol and resorcinol separately. The Taguchi experimental design was applied to study the effect of such parameters as the initial component concentrations (C(0,i)) o...

journal_title：Environmental technology

authors： Suresh S,Srivastava VC,Mishrab IM

更新日期：2012-04-01 00:00:00

abstract：:Of the various sources of arsenic released in to the environment, the presence of arsenic in water probably poses the greatest threat to human health. Arsenic is released in to the environment through water by dissolution of minerals and ores. Natural release is slow, but in some areas the concentration of arsenic in ...

journal_title：Environmental technology

authors： Pawlak Z,Rauckyte T,Zak S,Praveen P

更新日期：2008-02-01 00:00:00

abstract：:To understand the effect of forests and wetlands on air quality, the PM10 and PM2.5 concentration and meteorological data were collected in the forest and wetland in the Beijing Olympic Forest Park in China from May 2106 to May 2017. The blocking rates of forest and wetland to PMs were calculated under different air q...

journal_title：Environmental technology

authors： Cong L,Zhang H,Zhai J,Yan G,Wu Y,Wang Y,Ma W,Zhang Z,Chen P

更新日期：2020-07-01 00:00:00

abstract：:Due to the strong electron-withdrawing nature of Cl atom in CCl4, CCl4 could not readily be degraded by oxidation process. In the present study, aqueous electron (eaq-), a powerful reducing agent generated in UV-Na2SO3 system, was applied to reductively degradation of CCl4. The effects of several crucial factors (e.g....

journal_title：Environmental technology

authors： Wang Z,Liu W,Chen H,Zhang Z,Yang Z,Yang Q

更新日期：2021-01-01 00:00:00

abstract：:Incinerators do not achieve a complete mineralization of organic constituents of municipal solid waste. Bottom ash (main solid residue from incineration process) still contains a small quantity of carbon (1 to 5% in weight). This study is about characterisation of the carboned fraction (without carbonates) present in ...

journal_title：Environmental technology

authors： Quilici L,Praud-Tabaries A,Bottzeck O,Tiliacos N

更新日期：2003-08-01 00:00:00

abstract：:In the present study, the applicability of light-emitting diodes (LEDs) to a fibrous activated carbon (FAC)/titania (TiO2) composite used for the purification of gas-phase benzene, toluene, ethyl benzene and xylene was evaluated. The surface and morphological properties of the FAC and prepared FAC/TiO2 composite were ...

journal_title：Environmental technology

authors： Jo WK

更新日期：2013-05-01 00:00:00