Author: Avelino Núñez DelgadoPublisher:
ISBN:
Category :
Languages : es
Pages :
Book Description
Riesgos de contaminación de las aguas continentales por aplicación de purines sobre praderas en pendiente
Author: Avelino Núñez DelgadoPractical Implementation of Nutrient Guidelines
Author: Mark C. M. van LoosdrechtPublisher: IWA Publishing (International Water Assoc)
ISBN:
Category : Science
Languages : en
Pages : 212
Book Description
In 1991 the EU announced a directive regarding urban wastewater treatment. Its objective was to have wastewater collection and treatment for all settlements and nutrient removal for all sensitive areas. These measures needed to be implemented in a short time period, before 2000. The directive resulted in a boost in the applied research towards wastewater treatment and a large investment in new facilities. The 2000 Aquatech conference therefore aimed at evaluating how this directive (or similar directives worldwide) was implemented. The 25 papers selected for these proceedings give an overview of the policies related to nutrient removal in a number of regions. They show the differences in approach and in the results of measures taken. New processes have been developed and existing treatment plants have been upgraded for nutrient removal. Several of these new processes are described together with a number of examples of upgrading of existing facilities. These proceedings provide wastewater engineers, policy-makers and managers with a state-of-the-art view of the approaches that can solve eutrophication problems and minimise the impacts on society and the environment.
The North American Mosaic
Author: Commission for Environmental Cooperation (Montréal, Québec). SecretariatPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 240
Book Description
The North American Mosaic has four overarching features. First, it is, to the extent feasible, based on comparable information on the status and trends of major indicators of the state of the environment in Canada,Mexico, and the United States. Second, the report confirms that these three countries together make up an incredibly complex, dynamic, and interconnected ecosystem in which humans play a dominant and decisive role. Third, the report raises important and sometimes disquieting questions concerning the sustainability of some current trends. Finally, the report is a reminder that our economic, social, and physical well-being are utterly dependent on the life-sustaining services provided by nature. This report emphasizes the importance of developing mutually compatible economic, social, and environmental goals and policies across the three-country region.