نتایج جستجو برای: waste landfills
تعداد نتایج: 82525 فیلتر نتایج به سال:
All available hedonic pricing estimates of the impact of landfills on nearby property values are assembled, including original estimates for three landfills in Pennsylvania. A metaanalysis shows that landfills that accept high volumes of waste (500 tons per day or more) decrease adjacent residential property values by 12.9%, on average. This impact diminishes with distance at a gradient of 5.9%...
In January 1997, a pilot-scale project to assess the feasibility of in silu aerobic bioreduction of municipal solid waste was initiated at the Live Oak Landfill, located near Atlanta, Georgia The high costs (money, regulatory hurdles, societal objections) of developing new landfills are making fccovery and reuse of existing landfill space an increasingly attractive alternative. Onc bf the first...
Recently, roofed landfills have been gaining popularity in Japan. Roofed landfills have several advantages over non-roofed landfills such as eliminating the visibility of waste and reducing the spread of offensive odours. This study examined the moisture balance and aeration conditions, which promote waste stabilisation, in a roofed landfill that included organic waste such as food waste. Moist...
SUMMARY: Investigations into landfill simulation reactors and a full scale landfills are used for predicting emissions from municipal solid waste landfills. In the present study the water flow and solute transport through a landfill simulation reactor and a full scale landfill (using the same waste) has been investigated. The results indicate that, due to preferential flow pathways the water fl...
The current status of landfill disposal of hazardous wastes in the United States is indicated by presenting descriptions of six operating landfills. These landfills illustrate the variety of techniques that exist in landfill disposal of hazardous wastes. Although some landfills more effectively isolate hazardous waste than others, all landfills must deal with the following problems. Leachate fr...
In terms of the Integrated Waste Management approach, progressive authorities are making concerted efforts to reduce the amount of waste that goes to their landfills for final disposal. Notwithstanding this, waste disposal by landfill remains the way in which almost all waste in African and other developing counties is currently disposed. This is also the case in many developed countries. Conse...
On! a! global! level,! landfilling! is! still! the! main! method! to! dispose! of! waste.! In! particular! low:! and! middle:income! countries! almost! exclusively! depend! on! landfilling,! due! to! its! low! costs! and! convenient! operation! and! management.! Regulations!and!guidelines!exist!for!landfills!in!moderate!climates!(Western!Europe,! United! States).! These! guidelines,! neverthele...
Spatially and Intertemporally Efficient Waste Management: The Costs of Interstate Trade Restrictions
We examine the intertemporal allocation of the solid waste of cities within the United States to spatially distributed landfills and incinerators, taking into account that capacity at existing and potential landfills is scarce. Amendments have been proposed to restrict waste flows between states by means of quotas and surcharges. We assess the aggregate surplus loss (and its regional distributi...
Contaminant transport in a strongly heterogeneous stratified formation whose log hydraulic conductivity distribution has a variance greater than unity is investigated. Four kinds of waste leakage scenario are studied. They are: (1) continuous waste leakage from landfills; (2) temporal waste leakage from landfills; (3) continuous deepwell injection wastes; and (4) temporal deep-well injection wa...
Over the last fifteen years increased research interest has been observed on the dynamic response and stability issues of landfills. Nevertheless, there are still important aspects that have not been yet fully resolved. Geosynthetic liners, constructed to isolate waste material from the environment, are undoubtedly one of the most important issues related to seismic design of landfills, since a...
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