As more and more multibillion-dollar projects for sequestering carbon dioxide (CO2) deep within the Earth seek financial support, human-formed fertile black soils in the Amazon basin suggest a cheaper, lower-tech route toward the same destination.
The present work deals with the removal of chromium (VI) ion by the activated charcoal derived from the dry leaves of Azadirachta indica. The effect of removal of Cr(VI) ion on concentration, dosage, pH, contact time, the presence of surfactant and temperature have been studied.
Study published in Nature Geoscience in latest September edition says that climate change has been the main driver of global biomass burning for the past two millennia.
SHILLONG: The government will soon notify rules for incorporation in the existing Meghalaya Forest Regulation Act 1973 to ban felling of trees for charcoal manufacturing, especially in West Khasi Hills, which is one of the major causes of depletion of the State forest cover.
Rice makes up 20 percent of the typical Haitian's diet, and that percentage is growing. In 1981 Haiti imported 18,000 tons of rice. Now the country imports close to 400,000 tons annually. Less than a quarter is homegrown. "T
Fire is an important and arguably unnatural component of many wet Amazonian and Andean forest systems. Soil charcoal has been used to infer widespread human use of landscapes prior to European Conquest. An analysis of Amazonian soil carbon records reveals that the records have distinct spatial and temporal patterns, suggesting that either fires were only set in moderately seasonal areas of Amazonia or that strongly seasonal and aseasonal areas are undersampled.
