Investigación transdisciplinaria e investigación-acción participativa

Not only is climate change causing problems for trees, human interventions are also threatening forests ... Peter Wohlleben speaks out for trees: it is time to stop the ruthless overexploitation of forests.

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,...

Facundo es un pequeño aventurero al que le apasiona la vida submarina. Con sus aletas, ¡se mueve como pez en el agua! Pero algo le preocupa mucho: el cuidado de los animalitos que habitan allí. Por eso, a través de sus inmersiones, nos demostrará las consecuencias de tirar basura en cualquier sitio e intentará ponerle remedio. Un cuento con mucho ritmo y alguna que otra burbuja, repleto de personajes divertidísimos, sobre la importancia del reciclaje para cuidar nuestro ecosistema.

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.