The release of unpleasant odours during wastewater and sludge treatment and disposal is not new. However, in recent years the level of complaints concerning the release of these offensive odours has increased. This is in part a direct result of the encroachment of housing on lands surrounding existing wastewater and sludge treatment works, together with the raised awareness of the public over its rights related to environmental issues. To avoid the creation of nuisance odours in wastewater and sludge treatment requires an understanding of those processes that are responsible. Odours that are formed within wastewater and sludge will not create an odour nuisance until they are released into the atmosphere. It is therefore important to understand the mechanisms by which odours are formed and then released and dispersed in order to provide effective control systems. The CIWEM-IAWQ odour conference enabled practitioners, regulators and researchers to present findings on a wide range of topics relating to the control and prevention of odours. Twenty-two papers have been selected for these proceedings. They examine the regulation of odour emissions, techniques used to measure and model odour emissions and treatment technologies used to control and prevent odour formation and emission.

Wastewater treatment works have the potential to generate unpleasant odours, which can results in annoyance and consequently have a detrimental effect on a local population. As a result 'odour control and prevention' has become an important consideration both in the management of existing facilities and in the design and gaining of planning consent for new works. Odours in Wastewater Treatment provides readers with a detailed discussion on the basic principles involved in the formation of volatile compounds in wastewater treatment. Accounts are given of recent developments in the sampling and measurement of odours, practical examples in the prediction and dispersion of odorous emissions are offered and an overview of the technologies currently used to contain and treat odorous compounds presented. Contents Introduction Odours associated with wastewater treatment Odour sampling and measurement Assessment and prediction of nuisance odours Odour control and treatment

Environmental Technologies to Treat Sulfur Pollution: Principles and Engineering provides a definitive and detailed discussion of state-of-the-art environmental technologies to treat pollution by sulfurous compounds of wastewater, off-gases, solid waste, soils and sediments. Special attention is given to novel bioremediation techniques that have been developed over the last 10 years. Information density is unique owing to the many figures and graphs (150), tables (over 80) and over 1500 cited literature references. A detailed subject index helps the reader to find their way through the different technological applications, making it the perfect reference work for professionals and consultants dealing with sulfur-related environmental (bio)-technologies. Contents Part I - The sulfur cycle Part II - Technologies to Desulfurise Resources Part III - Treatment of Waters Polluted by Sulfurous Compounds Part IV - Treatment of Gases Polluted by Sulfurous Compounds Part V - Treatment of Soils and Sediments Polluted by Sulfurous Compounds Part VI - Other Applications of Sulfur Cycle: Bioconversions in Environmental Engineering Part VII - Problems Related to Sulfur Cycle: Bioconversions