Emission of CH4 from landfills is a major cause of concern as CH4 is twenty four times more potent than CO2, as a greenhouse gas. However, landfills also harbor a group of bacteria called methanotrophs, which can oxidize CH4. They can be used for in situ bioremediation to reduce methane emissions...

Carbon Capture and Storage (CCS) is an advanced technology that has the technical potential to provide dual advantages: (1) it helps countries maintain their hydrocarbon – driven economic advancement, such as Gulf Corporation Council countries (GCC) and (2) mitigating the negative effects of...

Pyrolysis properties of fresh ficus lacor leaves with moisture content of 70 wt. % was investigated in a TGA setup. The effects of different operating parameters on pyrolysis of biomass were studied in a fixed-bed reactor system. With addition of CaO, there showed an additional decrease in weight at...

Biogas production through anaerobic co-digestion of a mixture of cattle manure and citrus waste using an experimental facility for testing the biochemical methane potential (BMP) was investigated. No buffer solution is added to the mixture in order to use the buffer capacity from cattle manure...

The treatment of oxytetracycline (OTC) in test solutions by ferrate (VI) was investigated aiming to propose the effects of pH, concentration of co-existing ions and humic acid on the OTC removal. Ferrate (VI) can remove 97% OTC (from 1000 µg·l -1) in 30 minutes under the optimal conditions with...

Denitrifying polyphosphate accumulating organisms (DNPAOs) are very promising for simultaneous nitrogen and phosphorus removal. While during denitrification, emission of a greenhouse gas, nitrous oxide (N 2O), may occur. In this study, DNPAOs were enriched in a lab-scale reactor, and N 2O emission...

Ultramafics represent magmatic or metamorphic rocks which are characterized by high concentrations of Mg, Fe, Ni, Cr and Co and low concentrations of Ca, and K. Serpentine soils are weathered products of a range of ultramafic rocks composed of ferromagnesian silicates. The aim of this study was to...

A method is proposed for the assessment of the interactive accumulation of heavy metals in soils. Sixty surface soil samples were collected from fifteen sites, at a depth of 0-30cm, evenly distributed, within the 30,700ha comprising the study area. It was found that at least some of these metals...

Having developed rapidly in recent years, Konya, one of Turkey’s most significant industrial cities, has been hosting production activities in sectors such as glass, chemistry, mining, metal and machine in the factories 96% of which located in the third Organized Industrial Zone. In common...

The genotoxic effects of organometallic tin(II) and tin(IV) complexes namely L OEtSnCl ( 5), L* OEtSnCl ( 6), L OEtSnPh 3 ( 7), L* OEtSnPh 3 ( 8), incorporating the oxygen tripodal ligands [( η 5-C 5R 5)Co{P(OEt) 2O} 3] -, {R = H, (L OEt -) ( 3); R = Me (L* OEt -) ( 4)} (Klaui type ligands), were...

Water contamination by heavy metals is a serious global problem due to increased environmental and health-related issues. In this study, we have comparatively investigated the heavy metal concentrations and mineral nutrient levels in Karasu river sediments and in plants samples of Phragmites...

The carbonate and physicochemical characteristics of the surface microlayer and upper mixed layer of a tropical coastal lagoon were investigated. Data on the physicochemical parameters generally indicated a moderately polluted ecosystem. The influence of the ocean environment over the Lagoon system...

Phthalic acid esters, commonly called as phthalates, are of a common use in the industrial activities and are known with their hazardous impact on the environment and on humans such as endocrine disrupting agents, carcinogenic and toxic effects. These adverse effects have led to increasing interest...

Attrition of limestone particles in bubbling fluidized bed has significant influence on cyclic CO 2 capture ability of sorbents. The limestone particle attrition and size distribution characteristics were investigated experimentally in a bench scale fluidized bed. The effects of initial particle...

In this work, combustion process of diesel and biofuel blends is studied experimentally in an isothermal oven. Blends with respectively 20%, 40% and 60% of Ethanol (E20, E40, E60), 20%, 40% and 60% of Methanol (M20, M40, M60), and 20%, 40%, 60%, 80% and 100% of Biodiesel (B20, B40, B60, B80, B100)...

This paper reports the synthesis and the investigation of the properties and performance of Fe-Al catalysts modified with Cu or Co for the steam reforming of ethanol. The materials were prepared by the precipitation method with different Fe/Al ratios. The samples were characterised by the S BET, TG...

This paper summarises the results of a survey carried out amongst the student population of one of the largest Greek Technological Educational Institutes. It explores attitudes toward the environment in general and then, more specifically, toward global warming and global warming-mitigation...

A set of experiments have been carried out in a heavy duty single cylinder engine using high EGR rates and different start of injection angles ( SOI). Three different fuels (conventional diesel fuel, a diesel-ethanol mixture (e-diesel) and a Fischer-Tropsch fuel (GTL)) have been tested in order to...

The aim of this work is to quantify the life-cycle emissions in terms of CO 2 equivalent grams per megajoule of biodiesel produced from Acrocomia totai, a native oily seed from Paraguay, according to Directive 2009/28/EC. The other key point is to calculate the amount of energy invested to get a...

With the aggravation of the unprecedented greenhouse effect, the reduction of greenhouse gases which mainly consist of CO 2 has caught high attention by global scholars. The membrane absorption of CO 2 from the flue gas seems a promising alternative to conventional absorption methods like chemical...

In this paper, the effects of the mixing ratio and particle size of coal were investigated using a thermogravimetric analysis (TGA). A method of Achar-Brindley-Sharp-Wendworth (ABSW) was applied to a simultaneous calculation of the kinetic parameters (including the apparent activation energy, the...

CO 2 capture and storage (CCS) projects are presently developed to reduce the emission of anthropogenic CO 2 into the atmosphere. CCS technologies are expected to account for the 20% of the CO 2 reduction by 2050. Geophysical, ground deformation and geochemical monitoring have been carried out to...

The Douro River lower basin water quality was studied regarding its concentration on 18 trace elements (Be, Al, Cr, Mn, Co, Ni, Cu, Zn, As, Se, Mo, Ag, Cd, Sb, Ba, Tl, Pb and U, measured by ICP-MS). Other physicochemical parameters, such as pH, conductivity, dissolved oxygen and water temperature...

In this paper soil conventional tillage (CT) in two adiacent on-farm sites, hilly and plain fields, was carried out in comparison with direct-seeding + fertilizing at very low water content. The quality and quantity of work were evaluated through machine performance, fossil-fuel energy requirements...

Cement production is an energy-intensive process. Utilisation of fossil fuels is common practice in the cement industry around the world. Alternative fuel substitution rates increase every year. More specifically, 18 % of the fuel used by the European cement industry in 2006 consists of alternative...