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This study presents a novel integrated method for considering the economics of waste-to-energy (WTE) facilities with priced greenhouse gas (GHG) emissions based upon technical and economic characteristics of the WTE facility, MSW stream, landfill alternative, and GHG emissions policy. The study demonstrates use of the formulation for six different policy scenarios and explores sensitivity of the results to ranges of certain technical parameters as found in existing literature. The study shows that details of the GHG emissions regulations have large impact on the levelized cost of energy (LCOE) of WTE and that GHG regulations can either increase or decrease the LCOE of WTE depending on policy choices regarding biogenic fractions from combusted waste and emissions from landfills. Important policy considerations are the fraction of the carbon emissions that are priced (i.e. all emissions versus only non-biogenic emissions), whether emissions credits are allowed due to reducing fugitive landfill gas emissions, whether biogenic carbon sequestration in landfills is credited against landfill emissions, and the effectiveness of the landfill gas recovery system where waste would otherwise have been buried. The default landfill gas recovery system effectiveness assumed by much of the industry yields GHG offsets that are very close to the direct non-biogenic GHG emissions from a WTE facility, meaning that small changes in the recovery effectiveness cause relatively larger changes in the emissions factor of the WTE facility. Finally, the economics of WTE are dependent on the MSW stream composition, with paper and wood being advantageous, metal and glass being disadvantageous, and plastics, food, and yard waste being either advantageous or disadvantageous depending upon the avoided tipping fee and the GHG emissions price. 相似文献
23.
This paper considers how regional greenhouse gas emissioninventories can be determined. It presents a greenhousegas emissions inventory, by source, for the East Midlandsthat has been compiled as part of a regional study intoclimate change impacts in the United Kingdom. This hasused available local data, and national emissions datawith appropriate scaling factors. Total greenhouse gasemissions for the region are estimated to be 59 milliontonnes of carbon dioxide equivalent (CO2 equivalent)for 1997. Of these emissions, approximately 86% werecarbon dioxide emissions, 7% methane emissions, and 5%were nitrous oxide, with emissions of hydrofluorocarbons(HFCs), perfluorocarbons (PFCs) and sulphur hexafluoride(SF6) contributing less than 2% of total emissions. 相似文献
24.
Tu Bocun Pan Min Zuo Jian Chang Rui-dong J.Webber Ronald Zou Zhuojing Dong Na 《Environmental science and pollution research international》2023,30(1):557-577
Environmental Science and Pollution Research - Construction waste (CW) source reduction is a crucial strategy to address the sustainability issue of the construction industry. The economic benefit... 相似文献
25.
Behavioral Ecology and Sociobiology - Individual animals across all taxa differ consistently in behaviour, i.e. they show personality traits. This inter-individual variability has significant... 相似文献
26.
Measurements of aerosol particles in the air of an urban area in the UK have been made. Ambient air was sampled and the particulates measured after passing through a size selective PM10 inlet. Particle mass was measured using a Tapered Element Oscillating Microbalance (TEOM). Particle number and size distributions were obtained using an Electrical Aerosol Analyser (EAA) and an Aerodynamic Particle Sizer (APS). Measurements were also made of local meteorological parameters. Fine particle number concentrations were found to show better temporal agreement, including diurnal variation, with particle mass concentrations than the coarser particle number concentrations. 相似文献
27.
Polar and alpine environments are changing rapidly due to increases in temperature, which are amplified in the Arctic, as
well as changes in many local factors. The impacts on ecosystems and their function have potential consequences for local
residents and the global community. Tundra areas are vast and diverse, and the knowledge of geographical variation in environmental
and ecosystem change is limited to relatively few locations, or to remote sensing approaches that are limited mostly to the
past few decades. The International Polar Year, IPY, provided a context, stimulus and timely opportunities for re-visiting
old research sites and data sets to collate data on past changes, to pass knowledge from old to new generations of researchers
and to document environmental characteristics of sites to facilitate detection and attribution of future changes. Consequently,
the project “Retrospective and Prospective Vegetation Change in the Polar Regions: Back to the Future,” BTF, was proposed
and endorsed as an IPY activity (project #512). With national funding support, teams of researchers re-visited former sites
and data sets throughout the Arctic and some alpine regions. These efforts have amounted to a gamut of “BTF” studies that
are collectively geographically expansive and disciplinary diverse. A selection of these studies are introduced and presented
in the current issue together with a brief synthesis of their findings. 相似文献
28.
Menetrez MY Foarde KK Webber TD Dean TR Betancourt DA 《Environmental science and pollution research international》2007,14(7):523-528
Goal, Scope and Background Reducing occupant exposure to indoor mold is the goal of this research, through the efficacy testing of antimicrobial cleaners.
Often mold contaminated building materials are not properly removed, but instead surface cleaners are applied in an attempt
to alleviate the problem. The efficacy of antimicrobial cleaners to remove, eliminate or control mold growth on surfaces can
easily be tested on non-porous surfaces. However, the testing of antimicrobial cleaner efficacy on porous surfaces, such as
those found in the indoor environment such as gypsum board can be more complicated and prone to incorrect conclusions regarding
residual organisms. The mold Stachybotrys chartarum has been found to be associated with idiopathic pulmonary hemorrhage in infants and has been studied for toxin production
and its occurrence in water damaged buildings. Growth of S. chartarum on building materials such as gypsum wallboard has been frequently documented.
Methods Research to control S. chartarum growth using 13 separate antimicrobial cleaners on contaminated gypsum wallboard has been performed in laboratory testing.
Popular brands of cleaning products were tested by following directions printed on the product packaging.
Results A variety of gypsum wallboard surfaces were used to test these cleaning products at high relative humidity. The results indicate
differences in antimicrobial efficacy for the six month period of testing.
Discussion Results for the six types of GWB surfaces varied extensively. However, three cleaning products exhibited significantly better
results than others. Lysol All-Purpose Cleaner-Orange Breeze (full strength) demonstrated results which ranked among the best
in five of the six surfaces tested. Both Borax and Orange Glo Multipurpose Degreaser demonstrated results which ranked among
the best in four of the six surfaces tested.
Conclusions The best antimicrobial cleaner to choose is often dependent on the type of surface to be cleaned of S. chartarum contamination. For Plain GWB, no paint, the best cleaners were Borax, Lysol All-Purpose Cleaner-Orange Breeze (full strength),
Orange Glo Multipurpose Degreaser, and Fantastik Orange Action.
Recommendations and Perspectives These results are not meant to endorse the incomplete removal of mold contaminated building materials. However, it is recognized
that complete removal may not always be possible and solutions to control mold regrowth may contribute to reduced occupant
exposure. Current recommendations of removal and replacement of porous building materials should be followed.
It is not the intension of this discussion to endorse any product. Reporting on the performance of these products under the
stated conditions was and remains the only purpose.
ESS-Submission Editor: Dr. Lee Young (youngrisk@bresnan.net) 相似文献
29.
Thomas B. Long William Young Phil Webber Andy Gouldson Helen Harwatt 《Journal of Environmental Planning and Management》2015,58(10):1853-1876
Retrofitting existing housing stock to improve energy efficiency is often required to meet climate mitigation, public health and fuel poverty targets. Increasing uptake and effectiveness of retrofit schemes requires understanding of their impacts on householder attitudes and behaviours. This paper reports results of a survey of 500 Kirklees householders in the UK, where the Kirklees Warm Zone scheme took place. This was a local government led city scale domestic retrofit programme that installed energy efficiency measures at no charge in over 50,000 houses. The results highlight key design features of the scheme, socio-economic and attitudinal factors that affected take-up of energy efficiency measures and impacts on behaviour and energy use after adoption. The results emphasise the role that positive feedback plays in reinforcing pro-environmental attitudes and behaviours of participants and in addressing concerns of non-participants. Our findings have implications for the design and operation of future domestic energy efficiency retrofit schemes. 相似文献
30.
Abstract The disposal of digested sewage sludge on crop‐producing land appeals to municipalities as an option but may pose a hazard to human and animal health if the plant material contains elevated levels of some heavy metals. This paper reports the levels of cadmium in corn grain and stover for six years — three years with sludge applied annually and for three years after sludge applications were terminated. The cadmium concentration in corn grain from the sixth year was similar to values found in corn grown on non‐sludged plots. In corn stover fron treated plots the cadmium concentration was greater than from untreated plots. Our. study indicated that phytotoxic levels of cadmium did not exist even though elevated levels occurred in the corn stover. 相似文献