Investigation on Application of Integrated and Sustainable Environment Protection Strategy Using Coal-Biomass Briquettes to Developing Countries

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The abatement of sulfur dioxide and carbon dioxide emissions was achieved by using coal-biomass briquettes (or bio-briquettes, BBs) prepared from low-grade pulverized coal, waste biomass as an energy crop, and a sulfur fixation agent (slaked lime). Furthermore, BBs' combustion ash appears to be an effective liming material with little potential for adverse environmental impacts and could be used effectively as an acid-soil amendment to improve crop productivity. However, in order to apply this integrated and sustainable environmental strategy using coal-biomass briquettes to developing countries such as highly humid Vietnam further investigation on biomass drying and its stock yard is required.