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Issue 4

Global NEST Journal cover

Global NEST Journal

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Issue number
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Application of sludge, organic solid wastes and yard trimmings in aerobic compost piles


Chazirakis P., Giannis A., Gidarakos E., Wang J.-Y. and Stegmann R.


The effects of different mixture ratios of sewage sludge (SS), organic fraction of municipal solid waste (OFMSW) and yard trimmings (YT) on the performance of composting process were investigated in this study. The high water content and the proper carbon/nitrogen ratio make sludge ideal for this...

co-composting organic solid waste +3 more

Plant biomonitoring: impact of urban environment on seasonal dynamics of storage substances and chlorophylls of Oleander


Meletiou-Christou M.S. , Banilas G.P., Bardisi C. and Rhizopoulou S.


In the present study seasonal changes of chlorophyll content and storage substances related to the metabolic response of the widespread, evergreen plant oleander (Nerium oleander) to air pollution were investigated. Mature leaves of oleander shrubs, grown at five sites of differing levels of air...

air pollution carbohydrates +4 more

Under climatic change, soil microbial community and variables relating to N-cycle are modulated by changes in the upper limit temperature


Monokrousos N., Papatheodorou E.M. and Stamou G.P.


The effect of temperature increase and more specifically its upper and low level correlates on soil microbial biomass, activity and N-cycle variables was studied in a Mediterranean shrubland. Experimental manipulation succeeded in establishing three treatments which, in comparison with the monthly...

soil microbial biomass and activity climate change scenarios +5 more

Removal of hexavalent chromium from electroplating wastewater by electrocoagulation with iron electrodes


Dermentzis K., Christoforidis A., Valsamidou E. and Lazaridou A.


The performance of electrocoagulation using iron electrodes for the removal of hexavalent chromium from synthetic aqueous solutions and actual industrial electroplating wastewater was studied. Parameters affecting the electrocoagulation process, such as initial pH, applied current density, initial...

electrochemical coagulation electroplating effluent +2 more

Temporal and spatial scales of lake processes. Part 2: interaction of physical and ecological scales and application of scaling concepts to greek lakes


Papadimitrakis I. and Chioni A.


The temporal and spatial scaling concepts related to basic physical and ecological lake processes and the associated non-dimensional parameters that govern the various flow regimes, developed in lakes and reviewed in Part 1 of our companion paper (Papadimitrakis, 2011), are applied to lakes Pamvotis...

Lake processes physical scales +4 more

Temporal and spatial scales of lake processes. Part 1: physical and ecological scales, non-dimensional parameters and flow regimes


Papadimitrakis I.


Scaling concepts, related to basic physical transport and mixing processes and other ecological aspects in lakes, are reviewed in an ecohydrodynamic perspective; the length and time scales as well as the non-dimensional parameters governing the various flow regimes and relevant to these processes...

Lake processes transport +6 more

3-D Oil spill modelling. Natural dispersion and the spreading of oil-water emulsions in the water column


Papadimitrakis I., Psaltaki M. and Markatos N.


A 3-D hybrid turbulence model, simulating the transport and fate of oil spills in various waters, is used to evaluate the influence of natural dispersion on the spreading of water-in-oil emulsions formed in the water column. The model combines the Navier-Stokes equations for two-phase flows, the RNG...

Oil spills oil dispersion +3 more

Decision making in water resources with fuzzy information


Tzimopoulos C. and Evangelides C.


The multiple objectives optimization in water resources planning consists in trading multiple and conflicting objectives, forming a complex and dynamic process. In the last four decades multiobjective decisions based on fuzzy sets have been evolved and considerable research spawned into the...

multiple objectives optimization fuzzy analysis +4 more

Monitoring of the particles above the unpaved road by lidar technique


Koren Likar U. and Eichinger W.


Basic concepts of laser-based technique LIDAR (LIght Detection and Ranging) are discussed in this article as well as advantages and disadvantages. Presented are measurements of relative particulate concentrations above an unpaved road which were performed in a rural area near the Iowa City, Iowa...

LIDAR technique particulate concentration +1 more