Biological desulfurization is a kind of desulfurization technology which is still in the trial stage of research and development. It is not perfect yet. There is still much room for development. At present, there are mainly two kinds of microorganisms applied in biological desulfurization technology: photosynthetic bacteria and colorless sulfur bacteria.

光合细菌可以以光作为能源、能在厌氧光照或好氧黑暗条件下利用自然界中的有机物、硫化物、氨等作为供氢体兼碳源进行光合作用的微生物。有很好的脱硫作用，已被广泛应用在净化水质的工程中。

Photosynthetic bacteria can use light as energy source, organic matter, sulfide and ammonia in nature as hydrogen donor and carbon source for photosynthesis under anaerobic light or aerobic dark conditions. It has good desulfurization effect and has been widely used in water purification engineering.

而无色硫细菌将自然界的还原性硫化物氧化成硫磺或硫酸，可以起到改良碱性土壤的作用。

Colorless sulfur bacteria can improve alkaline soils by oxidizing natural reducing sulfides to sulfur or sulfuric acid.

生物脱硫技术任然在快速发展，相信随着科技的进步，更多更高效的脱硫微生物也会被人们慢慢的发现，生物脱硫技术也会更加完善。

Biological desulfurization technology is still developing rapidly. I believe that with the progress of science and technology, more and more efficient desulfurization microorganisms will be slowly discovered, and the biological desulfurization technology will be more perfect.

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