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生物脱硫是一种利用生物活性物质或微生物来去除燃煤排放的二氧化硫（SO2）的方法。它通过利用特定的微生物或微生物群体，将二氧化硫转化成可溶解和可吸收的化合物，从而降低对环境的污染。
Biological desulfurization is a method of using bioactive substances or microorganisms to remove sulfur dioxide (SO2) emitted from coal combustion. It reduces environmental pollution by utilizing specific microorganisms or microbial communities to convert sulfur dioxide into soluble and absorbable compounds.
生物脱硫通常涉及两个主要步骤：生物氧化和生物还原。在生物氧化阶段，某些微生物如Thiobacillus spp.能够利用氧化反应将二氧化硫转化为硫酸。在生物还原阶段，其他微生物如Desulfotomaculum spp.则能够将硫酸还原为硫化氢（H2S）。硫化氢能够进一步处理或转化为其他有用的产物。
Biological desulfurization usually involves two main steps: biological oxidation and biological reduction. During the biological oxidation stage, certain microorganisms such as Thiobacillus spp. can utilize oxidation reactions to convert sulfur dioxide into sulfuric acid. In the bioreduction stage, other microorganisms such as Desulfotomaculum spp. are able to reduce sulfuric acid to hydrogen sulfide (H2S). Hydrogen sulfide can be further processed or converted into other useful products.
生物脱硫具有一些优势，例如较低的操作成本、可回收利用的副产品以及对环境友好。然而，实施生物脱硫需要考虑微生物生长条件、适宜的温度和pH范围，以及废气中的其他组分等因素。
Biological desulfurization has some advantages, such as lower operating costs, recyclable by-products, and environmental friendliness. However, implementing biological desulfurization requires consideration of factors such as microbial growth conditions, suitable temperature and pH ranges, and other components in the exhaust gas.
需要注意的是，生物脱硫技术仍处于发展阶段，并不是在所有情况下都能广泛应用。在实际应用之前，需要进行充分的实验和研究，以评估其适用性和效果。
It should be noted that biological desulfurization technology is still in the development stage and may not be widely applied in all situations. Before practical application, sufficient experiments and research are needed to evaluate its applicability and effectiveness.
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2024-02-05
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