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 fuel was increased, under different load conditions (without load conditions and under full electrical load conditions). The use of gasoline-methanol mixtures showed a higher decrease of emissions. When the mixtures of gasoline-70%methanol and gasoline-90%ethanol and 100%ethanol for which the engine malfunctioned, the rpm of the engine were not constant and the emissions were increased. It is also important that (with the existing regulation of the fuel/air ratio that refers to gasoline) the engine functioned for the case of gasoline-methanol mixtures up to a concentration of -70%methanol mixture, while for the case of gasoline-ethanol mixtures until the use of 100%ethanol. Furthermore, during the use of the mixtures of gasoline-methanol and gasoline-ethanol there was a small increase of fuel consumption when the percentage of the methanol or ethanol in the fuel was increased.
journal_name
Environ Technoljournal_title
Environmental technologyauthors
Arapatsakos CI,Karkanis AN,Sparis PDdoi
10.1080/09593330309385647subject
Has Abstractpub_date
2003-09-01 00:00:00pages
1069-77issue
9eissn
0959-3330issn
1479-487Xjournal_volume
24pub_type
杂志文章abstract::With an aim of developing an effective remediation technology for soils contaminated by heavy metals and metalloids, the extraction behavior of metallic contaminants as well as those of soil constituents was studied on a laboratory scale. Three contaminated soils collected from a former metal recycling plant were exam...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2001.9619507
更新日期:2005-06-01 00:00:00
abstract::This study was conducted to investigate the possible relationship between a molecular biological investigation and water quality parameters in monitoring groundwater pollution at the immediate boundary of uncontrolled landfills and their downgradient aquifers, which may consequently facilitate unbiased monitoring for ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330801987087
更新日期:2008-07-01 00:00:00
abstract::The structure and physicochemical characteristics of weathered surfaces of marble in industrial environments can be attributed to the interconnected evolution of the processes taking place at the atmospheric environment--marble interface. The present work is an attempt to correlate the aerosols of a heavily polluted a...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332208618236
更新日期:2001-06-01 00:00:00
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
更新日期:2014-05-01 00:00:00
abstract::A possible approach for determining soil and groundwater quality criteria for contaminated sites is the comparative risk assessment. Originating from but not limited to Italian interest in a decentralised (regional) implementation of comparative risk assessment, this paper first addresses the proposal of an original m...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2018.1481890
更新日期:2019-11-01 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
pub_type: 杂志文章
doi:10.1080/09593330.2019.1649468
更新日期:2020-10-01 00:00:00
abstract::To recover oil from crude oil containing sludge is still a research hot topic from the view of sustainability, in which ultrasonic has been proven to be an efficient and environment friendly technique. However, the effect of sludge characteristic on ultrasonic-assisted oil recovery efficiency is little known. In this ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1422553
更新日期:2019-04-01 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
pub_type: 杂志文章
doi:10.1080/09593330.2013.788072
更新日期:2013-09-01 00:00:00
abstract::Doping non-metals onto TiO2 has been regarded as a promising way to gain a more effective photocatalyst. In this paper, N, F-codoped TiO2 was synthesized by the sol-gel method, demonstrating both high adsorption capacity and high photocatalytic activity under visible light irradiation. Samples were characterized by X-...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1422555
更新日期:2019-04-01 00:00:00
abstract::Removal of heavy metals (Cu(II), Pb(II) and Zn(II)) from aqueous solution was investigated using native or saponified chicory pulp biomass. Firstly, carbohydrates constituted about 70% of pulp dried matter. The pectic fraction represented 12-14% of dried matter and about 51% of these pectic units were esterified by me...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2012.728737
更新日期:2012-10-01 00:00:00
abstract::Two types of cathodic biofilm in microbial fuel cells (MFC) were established for comparison on their performance and microbial communities. Complete autotrophic simultaneous nitrification and denitrification (SND) without organics addition was achieved in nitrifying-MFC (N-MFC) with a total nitrogen (TN) removal rate ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2015.1080764
更新日期:2016-01-01 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
pub_type: 杂志文章
doi:10.1080/09593330.2017.1374471
更新日期:2018-12-01 00:00:00
abstract::Microbial degradation of phenolic pollutants in industrial wastewater is dependent on enzymatic pathway comprising a cascade of phenol metabolizing enzymes. Phenol hydroxylase is the first enzyme of the pathway catalysing the initial attack on phenol in green algae Chlorella pyrenoidosa. The present work reports cost-...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1349838
更新日期:2018-08-01 00:00:00
abstract::Elemental balances of microbial growth have been applied to calculate (C/N) ratio in a denitrification process. The correlation between biomass yield coefficient and degree of reduction has been used to estimate the critical (C/N) ratio. It has been shown that when the degree of reduction of the substrate is lower tha...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332708618624
更新日期:2006-01-01 00:00:00
abstract::Standard experimental protocols for biodegrading petroleum hydrocarbons employ microbiological and/or analytical analysis, and require advanced machines and specialized professionals to carry them out. Furthermore, the obtained results involve a high margin of error. In this paper, a new experimental technique was dev...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332708618727
更新日期:2006-10-01 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
pub_type: 杂志文章
doi:10.1080/09593332508618467
更新日期:2004-12-01 00:00:00
abstract::Current concern over the potentially negative impacts of climate change has brought attention to anthropogenic sources of methane, a primary greenhouse gas. Two such emission sources are methane leakage at heavy oil wells and sanitary landfills. At both of these sources, substantial quantities of methane could potenti...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332208618315
更新日期:2001-01-01 00:00:00
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
更新日期:2011-07-01 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
pub_type: 杂志文章
doi:10.1080/09593330.2017.1378268
更新日期:2019-01-01 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
pub_type: 杂志文章
doi:10.1080/09593330.2017.1340351
更新日期:2018-07-01 00:00:00
abstract::The effects of antecedent dry days (ADD) on nitrogen removal efficiency were investigated in soil infiltration systems, with three distinguishable layers: mulch layer (ML), coarse soil layer (CSL) and fine soil layer (FSL). Two sets of lab-scale columns with loamy CSL (C1) and sandy CSL (C2) were dosed with synthetic ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2010.511278
更新日期:2011-05-01 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
pub_type: 杂志文章
doi:10.1080/09593330802318894
更新日期:2008-09-01 00:00:00
abstract::Polyaspartic acid (PSI) is suitable for the inhibition of inorganic scale deposition. To enhance its scale inhibition efficiency, PSI was modified by reacting aspartic acid with malic acid (MA) using thermal polycondensation polymerization. This reaction resulted in poly(aspartic acid-co-malic acid) (PSI-co-MA) dual p...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2014.984773
更新日期:2015-05-01 00:00:00
abstract::The inhibition of undesirable nitrite oxidizing bacteria (NOB) and desirable ammonium oxidizing bacteria (AOB) by free ammonia (FA) and free nitrous acid (FNA) in partial nitritation (PN) is crucially affected by the biomass growth mode (suspended sludge, biofilm, encapsulation). But, the limitations of these modes to...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1403491
更新日期:2019-02-01 00:00:00
abstract::The unique properties of nanoparticles create broad opportunities as regards their application in almost all disciplines of science and technology. There are many reports about the negative influence of nanoproducts on the environment and humans. Therefore, it is of vital importance to explore the impact of metal nano...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2020.1740331
更新日期:2020-03-16 00:00:00
abstract::Nitrate leaching contaminates groundwater. The objective of this study was to determine if reed and rice stalks could enhance denitrification and reduce nitrate leaching into groundwater. Artificial groundwater spiked with nitrate and field groundwater samples were tested in the columns in sand reactors packed with ei...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2010.545080
更新日期:2011-10-01 00:00:00
abstract::In China, municipal solid waste (MSW) is primarily treated by landfilling. Landfill gas (LFG) collection effectively reduces methane emission from MSW landfills. An accurate system of LFG collection is important in landfill planning, design, and operation. However, China has not developed such systems. In this study, ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2014.943679
更新日期:2015-01-01 00:00:00
abstract::In this research, removal of petroleum hydrocarbons from oily sludge of crude oil storage tanks was investigated under the optimized conditions of in-vessel composting process and chemical oxidation with H2O2 and Fenton. After determining the optimum conditions, the sludge was pre-treated with the optimum state of the...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1362037
更新日期:2018-10-01 00:00:00
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
更新日期:2017-08-01 00:00:00
abstract::In the present investigation, the performance of a laboratory-scale plate and frame-type electrochemical ion-exchange (EIX) cell on removal ofhexavalent chromium from synthetic wastewater containing 5 mg/l of Cr(VI) was evaluated under varying applied voltages. Ruthenium dioxide-coated titanium plate (RuO2/Ti) was use...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2014.902108
更新日期:2014-09-01 00:00:00