Plastic detox

In recent years, due to expanding populations and industries, regulatory authorities have imposed tighter discharge limits on nutrients from wastewater treatment facilities to avoid eutrophication in water streams. Common methods, such as metal salt precipitation, are being used to lower phosphorus concentrations which are a main contribution. However, alternate phosphorus removal techniques, such as phosphorus crystallisation, can provide further benefits. Precipitated solid can be utilised as a marketable fertiliser. Principles of magnesium and ammonia phosphate precipitation, working with...

Este libro es parte de una serie del PNUMA que pretende inspirar el cuidado de nuestro planeta a través de literatura creativa que despierte el interés y la conciencia en los niños, sus padres y sus maestros. Esta es la historia de Tina quien, inspirada por su abuela y con la ayuda de sus amigos procura reverdecer a su ciudad.

The guidelines are of a voluntary nature. They are applicable to ecolabelling schemes that are designed to certify and promote labels for products from well-managed marine capture fisheries and focus on issues related to the sustainable use of fisheries resources. The guidelines refer to principles, general considerations, terms and definitions, minimum substantive requirements and criteria, and procedural and institutional aspects of ecolabelling of fish and fishery products from marine capture fisheries.

Dejando de lado mitos y metforas, los seres humanos no somos ngeles ni computadoras, sino animales. El conocimientos de ellos es la base de nuestro autoconocimiento y la asuncin de nuestra animalidad es la base de una relacin armoniosa y responsable con el resto de biosfera. La cultura hispnica tradicional ha estado de espaldas a la naturaleza y se ha caracterizado por su desprecio e ignorancia hacia los animales.