Miami-Dade County Superintendent Alberto Carvalho announces Miami-Dade schools will be closed on Monday due to Tropical Storm Isaac. MIAMI (CBSMiami) â Miami-Dade County Schools superintendent Alberto Carvalho announced Saturday that all classes have been canceled for Monday, August 27.
Biochar is charcoal used as a soil amendment. Like most charcoal, biochar is created by pyrolysis of biomass. Biochar is under investigation as an approach to carbon sequestration to produce negative carbon dioxide emissions. Biochar thus has the potential to help mitigate climate change, via carbon sequestration.re-Columbian Amazonians are believed to have used biochar to enhance soil productivity. They produced it by smoldering agricultural waste (i.e., covering burning biomass with soil) in pits or trenches. European settlers called it terra preta de Indio.
Such systems may produce large. amounts of high-quality biochar. Gasification of industrial wastes, municipal solid wastes and even. biomass is already widely used. The production of usable biochar by gasification is still relatively novel.