Environmental Engineering

Solid waste technology and management (2 volume set) by Thomas Christensen

By Thomas Christensen

The gathering, transportation and next processing of waste material is an enormous box of analysis which contains technical, social, felony, fiscal, environmental and regulatory matters. universal waste administration practices contain landfilling, organic remedy, incineration, and recycling – all boasting merits and downsides. Waste administration has replaced considerably over the last ten years, with an elevated specialise in built-in waste administration and life-cycle evaluation (LCA), with the purpose of lowering the reliance on landfill with its noticeable environmental issues in favour of greener recommendations. With contributions from greater than seventy the world over identified specialists awarded in volumes and subsidized through the overseas Waste operating workforce and the overseas strong Waste organization, specified chapters cover:
• Waste iteration and Characterization
• existence Cycle review of Waste administration Systems
• Waste Minimization
• fabric Recycling
• Waste Collection
• Mechanical therapy and Separation
• Thermal Treatment
• organic Treatment
• Landfilling
• distinct and dangerous Waste
Solid Waste know-how & Management is a balanced and distinct account of all points of municipal reliable waste administration, therapy and disposal, masking either engineering and administration facets with an overarching emphasis at the life-cycle strategy.

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Sample text

The main cost items are bins, collection trucks, wages for the collection crew and fuel for the trucks. It is important to realize that the different factors influence each other; for example lowering the running costs by having a lower collection frequency could result in higher capital costs for containers. Revenues may come from the direct sale of collected source-separated fractions as paper and glass. Traditionally the cost of collection does not include the cost of time spent on separating and putting the waste into the bins by a household or company.

These terms are explained here and additionally described are annualizing, correction for inflation and discounting. Capital Costs The capital costs are the costs that are invested in fixed capital. g. land, buildings and equipment. g. incinerators (which are available from a limited number of international companies) are less dependent on local factors and cost more or less the same worldwide. The costs of planning and design of the system are often associated with the capital cost. For most waste management systems, a significant part of the capital costs is invested the first years of the lifetime of the system and thus puts a pressure on the cash flow during these years.

4 Cost for landfilling of waste, Denmark, 2004 prices (based on Renosam, 2004). Reproduced with permission from Renosam © (2010) Renosam. g. liners and electricity). Landfilling costs are dependent on the type of waste landfilled, as the density of the waste and the requirements for liners, top covers etc. all have an effect on the costs. 4 shows the costs for a number of Danish landfills, revealing a large variation among the landfills. As it can be seen, some plants have revenues in addition to the gate fee, which is not shown here.

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