Setas de la Península Ibérica e Islas Baleares

Anaerobic digestion is the most widely process used for the stabilisation of wastewater treatment sludge. Organic matter is transformed into CH4 and CO2 by the action of different bacteria groups. The main advantages are the reduction of the volume of waste sludge and the production of methane gas that can be utilized as energy supply for the process. During anaerobic digestion of activated sludge from enhanced biological phosphorus removal process (EBPR-process), most of the phosphorus eliminated during the water treatment, as well as that from cellular lysis, is released. So that,...

The FAO Yearbook of Fishery and Aquaculture Statistics contains all the most updated data on capture production, aquaculture production and commodities. In this new presentation, the complete yearbook package for each of these categories - all the key information and statistical tables - are contained on one CD-ROM, inserted in a booklet that includes general notes, concepts and classifications, and summary tables as well as a pull-out map of FAO major fishing areas. . From the CD-ROM, you can download, consult, share and store all the data previously provided in print only. This volume...

* Un viaje por las constelaciones para conocer los progresos de los grandes astrónomos del pasado, las interpretaciones más o menos fantasiosas de los fenómenos celestes y el avance del conocimiento del universo a través de quienes convirtieron su estudio en su razón de vivir. * Revela la fusión excepcional que se produjo en muchos casos entre el arte y el conocimiento científico plasmada en mapas que son verdaderas obras maestras del ingenio y que, todavía hoy, siglos después de su confección, consiguen transmitir el extraordinario mensaje para el que fueron concebidos. *...

A reference work to the design and construction of water treatment plants. This edition incorporates current EPA standards and developments in the field. New chapters place more emphasis on design, planning, assembly, rehabilitation, operation and maintenance of treatment plant facilities.