Author:
Publisher:
ISBN:
Category : Sewage
Languages : en
Pages : 92

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Book Description

Author: United States. Environmental Protection Agency
Publisher:
ISBN:
Category : Environmental protection
Languages : en
Pages : 516

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Book Description

Author: United States. Environmental Protection Agency
Publisher:
ISBN:
Category : Environmental protection
Languages : en
Pages : 848

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Book Description

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 856

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Book Description

Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1076

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Book Description

Author: United States. Environmental Protection Agency
Publisher:
ISBN:
Category : Catalogs, Publishers'
Languages : en
Pages : 224

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Book Description

Author: Water Environment Federation
Publisher: McGraw Hill Professional
ISBN: 0071589228
Category : Technology & Engineering
Languages : en
Pages : 746

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Book Description
Clarification is the final step in wastewater treatment. Once the water has been thoroughly cleansed, clarifiers remove both any remaining pollutants and the chemicals added by the treatment process (such as chlorine), so water can be safely released back into the local environment. Current US water treatment facility expenditure exceeds $25 billion The field's established authority on clarifier design Updated to cover the latest modeling software, equipment selection, and common design "traps" Details successful design approaches in Europe and Japan

Author: Roumen Arsov
Publisher: Springer Science & Business Media
ISBN: 9401000573
Category : Technology & Engineering
Languages : en
Pages : 362

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Book Description
Urban population growth dramatically alters material and energy fluxes in the affected areas, with concomitant changes in landscape, altered fluxes of water, sediment, chemicals and pathogens and increased releases of waste heat. These changes then impact on urban ecosystems, including water resources and result in their degradation. Such circumstances make the provision of water services to urban populations even more challenging. Changing weather patterns, rising temperature and large variations in precipitation contr- ute to increased damages, caused by weather related disasters, including floods. Ones of the major contributors to increasing flood peaks are land use changes and particularl- urban development. Consequently, there is a need to look for low environmental impact land development and to manage runoff in urban areas by storm water management. Much progress in the management of urban waters has been achieved in the most - vanced jurisdictions, but much more remains to be done. In this respect the EC Water Framework Directive can provide some guidance. Urban water management issues are particularly important in the countries in transition in Central and Eastern Europe. During the last decade political, economical and social changes in the countries under transition have influenced almost every element of the public sector, including water services. There is an urgent need for exchange of information among various countries on this issue and for identification of best approaches to achieving this transition.

Author: United States. Environmental Protection Agency. Office of Research and Monitoring
Publisher:
ISBN:
Category : Pollution
Languages : en
Pages : 268

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Book Description

Author: Richard M. Ashley
Publisher: IWA Publishing
ISBN: 1900222914
Category : Science
Languages : en
Pages : 362

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Book Description
This Report presents information on the current state of knowledge of the origins, occurrence, nature and effects of sewer solids for use by engineers, scientists, administrators and water quality planners for the planning, design and operation of sewerage systems. The report addresses both sewer maintenance requirements and environmental protection issues. Increasing environmental standards, coupled with public expectations, have led to stringent water quality standards. In response to this, it has been necessary to develop new methodologies and computer based analytical techniques to model and understand the performance of all aspects of waste water systems. Fundamental to these techniques is the understanding of the way in which sewer solids contribute to the poor performance of wastewater systems and consequential environmental damage. The information presented in this Report about the origins, nature, movement, hydraulic and polluting effects of solids in sewers has enabled strategies and rules to be developed for the management of sewerage systems to minimise the deleterious effects of these solids and associated pollutants. Scientific & Technical Report No. 14