Abstract ▼ AI-Helper

Recently, interest in the recycling of municipal solid waste ash has greatly increased as desires have rose to minimize landfill waste. However, recycling of fly ash from municipal solid waste is almost impossible due to its high chlorine content. Therefore, the possibility of chlorine removal from ...

Recently, interest in the recycling of municipal solid waste ash has greatly increased as desires have rose to minimize landfill waste. However, recycling of fly ash from municipal solid waste is almost impossible due to its high chlorine content. Therefore, the possibility of chlorine removal from fly ash using acid and alkaline solutions has been studied in this work. Sulfuric acid, nitric acid, and sodium hydroxide solutions were used as acid and alkaline solutions. From this work it was found in all cases that the removal of chlorine increased with increasing acid and base concentrations. Chlorine removal also increased by increasing the reaction temperature for a sulfuric acid solution, but the optimal reaction temperature was needed to maximize chlorine removal in the case of a nitric acid solution. It was also found that sulfuric acid solutions were more effective than nitric acid and sodium hydroxide solutions for the removal of chlorine from fly ash.

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