The COVID-19 pandemic has induced many issues for all societal sectors, in particular the production and disposal of municipal solid waste. This may be because successive easing reimposing lockdown measures have deeply changed people's movements, consumers' behaviors waste management. Previous studies focused on short-term effects lockdowns changes, yet there is little knowledge variations during unlocking various intensities. Moreover, efficiency its relation to mobility different countries...

Landfill-biogas utilization is a win-win solution as it creates sources of renewable energy and revenue while diminishing greenhouse gas emissions. However, the combustion siloxane-containing biogas produces abrasive microcrystalline silica that causes severe expensive damages to power generation equipment. Hence, importance siloxane analysis has increased with growth waste-to-energy market. We have investigated an improved method for octamethylcyclotetrasiloxane (D4)...

An evaluation of lateral landfill gas migration was carried out at the Saint-Michel Environmental Complex in Montreal, City Montreal Landfill Site, Canada, between 2003 and 2005. Biogas concentration measurements gas-pumping tests were conducted multilevel wells installed backfilled overburden beside site. A event recorded autumn 2004 during maintenance shutdown extraction system simulated using TOUGH-LGM software. Eleven high-density instantaneous surface monitoring (ISM) surveys methane on...

The City of Montreal operates a large sanitary landfill site within densely populated urban area. Adjacent to the is yard waste composting facility that processes 10,000 metric tons per year using windrow technique. Over years, numerous complaints have been received from citizens in surrounding area regarding odours, particularly during fall period. Aware this nuisance, wanted identify odour sources, management operations leading and weather conditions accentuating as well quantify actual...

Abstract Landfill operators require a rapid, simple, low-cost, and accurate method for estimation of landfill methane surface emissions over time. Several methods have been developed to obtain instantaneous field measurements emissions. This paper provides methodology interpolating time, taking variations in meteorological conditions into account. The goal this study was determine the effects three factors on emissions: air temperature, pressure gradient between waste atmosphere, soil...

Abstract The determination of the separation efficiencies mechanical sorting equipment is essential to improve performance material recovery facilities (MRFs). However, it often a challenge obtain these due high complexity MRFs, which comprise several recirculation streams. In this paper, methodology determine complex MRF described and applied an actual centre located in province Quebec, Canada. Transfer coefficients for every unit operation types, together with all flows within facility,...

The City of Montreal, Quebec, Canada, took over the management, in 1988, a former limestone quarry that was also used as landfill site. surrounding population this site exposed to many nuisances related rock extraction and transformation landfilling activities. So, main goal city rehabilitate degraded site, build public park give it back population. site’s total area covers 192 ha. From surface, 72 ha were devoted landfill. Over years, 40 million tons municipal solid waste have been...

Comprehensive models were developed to predict waste generation for different collection streams. Taking into account the dwelling-type distribution encountered during collections, it was possible better capture variability. Using same approach, and transportation cost also developed. This series of validated using data from Urban Agglomeration Montreal (UAM), which is composed 33 districts with widely scales population dwelling characteristics. The unknown parameters identified through mean...

L’impact odeur d’un centre de compostage en milieu urbain contigu a un lieu d’enfouissement sanitaire ete evalue l’aide d’observations et simulations. Un reseau 43 riverains volontaires, formes la perception reconnaissance differents types d’odeurs, effectue des observations biquotidiennes durant dix semaines. Environ 24 % ont revele d’une odeur, principalement (46,4 %) biogaz (22,3 %). Plus 90 % odeurs qualifiees d’a peine perceptibles ou faible intensite. D’apres les observations, distance...