Effect of temperature and aeration rate on co-composting efficiency of olive mill wastewater with olive stone wooden residues
© Aristotle University of Thessaloniki (6/2009)
Co-composting of the solid residues and wastewater from the olive oil production process was examined as a potential bioremediation treatment for these wastes. Experimental results from a laboratory pilot plant were reported.

Management of industrial waste on sustainable landfills: Influence of the ageing of stabilised/solidified metallic waste on the leaching characteristics
© Aristotle University of Thessaloniki (6/2009)
In this work, products obtained by stabilisation/solidification of electric arc furnace dust at industrial scale have been studied in order to control their leaching pollution in a lifetime on sustainable landfills. Total metallic pollutants, NEN 7341 availability test and three different mobility tests have been studied as basic and compliance characterisation at two different curing ages, 28 and 385 days: EN 12457 batch leaching test at two liquid/solid ratios, 2 and 10 L/kg, and prEN 14405 up flow percolation leaching test have been developed in the end-products.

Characterisation and leaching behaviour of olive mill waste in order to obtain the best management options
© Aristotle University of Thessaloniki (6/2009)
The aim of this paper is to characterise an olive mill waste from Chania, Crete, through total analysis, availability and mobility of the pollutants in different scenarios in order to give the optimal options for its valorisation or disposal.

Batch system for study of Cr biosorption by dried waste activated sludge
© Aristotle University of Thessaloniki (6/2009)
Biosorption processes, defined as the sorption of metal ions by biomass, are being employed as an alternative technique for the decontamination of industrial effluents and for the recovery of the retained metals. Advantages of biosoption for removal of heavy metals over chemical and physical methods are; 1) Excess sludge from wastewater treatment plants may be used as bio-sorbent, 2) Low cost, free availability and possible reuse of the biosorbent, 3) High biosorption capacity because of large surface area, 4) Selective adsorption of metal ions, 5) Operation over a broad range of environmental conditions.

Air monitoring around MSW sanitary landfills in Wallonia: feedback of 10 years field surveys
© European Compost Network ECN e.V. (10/2008)
The Wallonian monitoring network of sanitary landfills is a unique public multidisciplinary tool for environment quality assessment.

Respiration and microbial community succession as compost stability indicators
© European Compost Network ECN e.V. (10/2008)
Since the new Paradigm in biodegradable waste management promotes resource recovery, composting still remains one of the main options. However, the assessment of compost stability, both as a product quality indicator and a process evolution index, is still a problem resisting intensive research efforts. Although a large variety of stability indexes has been proposed in the literature and some have been adopted in national regulations, the question of identifying parameters effectively reflecting the stabilisation process of organic matter during composting still remains.

Use of a gas tracing method to diagnose the aeration system in a large scale composting process
© European Compost Network ECN e.V. (10/2008)
In order to face up to the problems of pollution linked to the management of waste, environmental policies have been developed. In Europe, these policies promote waste prevention, recycling and reuse. In this context, biological treatments as composting are encouraged because they allow an agronomic reuse of the organic matter contained in biodegradable organic wastes.

Environmental life cycle comparison of 4 MBT scenarios
© IWWG International Waste Working Group (10/2007)
This project deals with the environmental comparison through an LCA of 4 different MBT strategies. Two indicators were analyzed: energy and greenhouse gas balances.

Environmental assessment of solid waste landfilling technologies by means of lcamodeling (easewaste)
© IWWG International Waste Working Group (10/2007)
By means of Life Cycle Assessment (LCA) modelings, this paper aims at providing an evaluation of the environmental performances achieved by six landfilling technologies and at identifying the related environmental benefits and drawbacks.

Risk assessment and comparison of short-term and long-term emissions for different treatment and disposal phases of msw
© IWWG International Waste Working Group (10/2007)
A research program including a comparison between short term and long term emissions of MSW landfill started in 2006. The goal of that program was to access the human health chronic risk of three different waste disposal processes (anaerobic with/without leachate recirculation, with/without aerobic pretreatment) and to provide new criteria for the disposal site.

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