Colloque

Decontamination of Pollutants in Urban Areas

Giampaolo Sassano

Edward L. Procyshyn

Membre a labase

Giampaolo Sassano

Résumé du colloque

A major problem facing urban centers is the decontamination of industrial and residential toxic waste from sites presently being reconverted for urban use. A review of presently available methods indicates prohibitive costs of inefficient solutions. The more recent processes have been simplified to minimize the contamination of the water table and/or the effective control of the effluents from the decontamination sites. The studies reviewed concern toxic materials (i.e. heavy metals and petroleum derivatives) should require separate waste treatment. Innovative biological methods are considered to solve the disposal problem of most of the toxic characters still requiring safe disposal. In landfill sites the study of molecular reticulation and the in situ micro-biological conversion with production of biogas appear as promising alternatives. In California and elsewhere, similar methods using silicate compounds capable of producing single-chain tetrahedra are able to sterilize most of the heavy metals and compounds into neutral and non-aggressive form. In Europe and Asia micro-biological conversion, in sealed cells, allows anaerobic production of biogas from S.O.W. These innovative techniques now receive proper attention from our research institutes of Canada as to remain competitive in the field of toxic waste disposal.

Contexte

Section :

Sciences de l'environnement

Thème du colloque :

Sciences de l'environnement

Hôte : Université de Montréal

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