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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Novel processes to allow improved waste management of spent bleaching earth produced in Egypt

Beshara, Abdelhamid January 2010 (has links)
No description available.
2

Odour nuisance from solid wastes : development of a model describing emission, dispersion and reception

Sarkar, Ujjaini January 1999 (has links)
Odours emitted from Municipal Solid Waste (MSW) landfills create nuisance in the surrounding environment. The odour comes from the mixture of volatile organic compounds present in the landfill gas, leachate and leachate treatment systems, sewage sludges and waste materials. The research objective is to develop an Odour Impact Model (OIM) to quantify the impact of odour from a landfill on the surrounding communities. The model provides a basis for site planning and odour regulations. A suitable OIM has been developed with special emphasis on quantifying emissions from the source. A micrometeorological model has been developed based on the estimation of footprints of scalar odour concentration measurements in the atmospheric surface layer. A simple experiment has been designed based on this model. The results of this model have been compared with those from the direct emission measurement approach using a portable Lindvall Hood. Major advantages of the indirect micrometeorological approach are the simplicity of the experiment design, and its ability to cover various spatial resolutions. The commercial software MPTER/COMPLEX-I and UK-ADMS have been used to predict the dispersion of odour around two solid waste sites. UK-ADMS uses a better representation of short-range dispersion (considering plume meandering and in-plume fluctuations) and is thus likely to be more accurate close to the source. The two models compare well at distances greater than 500 metres downwind from the source. The perception recorded in the surrounding community has been analysed with four psychophysical models to validate the impacts predicted by the suitable dispersion model. The model based on Weber-Fechner law describes the relationship between odour intensity and odour concentration (ou/m3) very well for the less intense odour samples, while Laffort’s equation expresses a better relationship with more intense odour samples. The main strength of the integrated OIM is its ability to handle the problem of odour nuisance from solid wastes quantitatively. Amongst the major weakness was poor validation due to lack of sufficient data. Successful use of the OIM will require measurements which account for the extreme variations in surface conditions, cover type, waste composition, wasteage and subsidence.
3

An investigation into the copper and lead tolerance of populations of Buddleia davidii and Chamaenerion angustifolium

Paraskevopoulou, Angeliki T. January 1999 (has links)
No description available.
4

Bioremediation of a model complex mixture of organic contaminants at trace levels

Limbert, Eduardo de castro Sobral Blanco January 1994 (has links)
No description available.
5

The impact of increasing the incinerator ash content on landfill site biostabilisation

Lo, Huang-Mu January 1999 (has links)
No description available.
6

Compost stability : a comparative evaluation of respirometric techniques

Lasaridi, Konstadia Ekaterini January 1998 (has links)
No description available.
7

Solid waste management : a case study of Delhi

Grover, Velma I. January 1999 (has links)
No description available.
8

The performance of mudrocks for leachate containment : mineralogical and chemical constraints

Batchelder, Meryl January 1995 (has links)
No description available.
9

Hydrogeological aspects of waste disposal on the Carboniferous limestone aquifer

Edwards, Alan Jonathan January 1993 (has links)
No description available.
10

Landfill hydrogeology and the hydraulic properties of in situ landfilled material

Burrows, Mark Robert January 1998 (has links)
No description available.

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