It is reported that biological desulfurization technology includes biofiltration, biosorption and trickle filtration. These three systems are open systems, and their microbial populations vary with the environment.
特點：
characteristic:
1、效率高：硫化氫清理率達98.5%。
1. High efficiency: the removal rate of hydrogen sulfide is 98.5%.
2、高適應范圍：可處理硫化氫濃度達1.5%（15000ppm）。
2. High adaptability: it can process 1.5% (15000ppm) hydrogen sulfide.
3、成本低：與其它脫硫技能相比，運行成本較低。
3. Low cost: compared with other desulfurization skills, the operation cost is lower.
4、高平安性:設有多種保護裝置。
4. High safety: with a variety of protective devices.
5、無人值守：系統通過在線監測系統全自動運行。
5. Unattended: the system runs automatically through online monitoring system.
6、維護簡單：少量的維護工作（如定期校正PH探頭）。
6. Simple maintenance: a small amount of maintenance work (such as regular calibration of pH probe).
生物脫硫的三個步驟：
There are three steps in biological desulfurization
The contact between waste gas and water or water film on solid surface is molecules or ions dissolved in water or liquid phase, that is, the transfer of malodorous substances from gas phase to liquid phase. This step is Henry's law of physical process.
The odor components in the aqueous solution are absorbed by microorganisms. The water is transferred from the water to the microorganism, the water as absorbent is regenerated and recycled, and then the new odorous components are dissolved.
3、生物降解：
3. Biodegradation:
進到微生物胞體的氣味成分被區分為微生物生命活動的動能或營養物質，從而清理污染物。
The odor components entering the microbial cell body are divided into kinetic energy or nutrients of microbial life activities, so as to clean up the pollutants.
進到微生物胞體的物質被胞體里的酶氧化和分化，合成產生新的微生物胞體。
The substances entering into the cell body of microorganism are oxidized and differentiated by enzymes in the cell body to produce new microbial cell bodies.
用雙膜生物膜理論解釋含硫廢氣的生物處理也有三個類似的步驟：
There are three similar steps to explain the biological treatment of sulfur-containing waste gas with the theory of double membrane biofilm
Sulfur gas contacts with water or water film on solid surface. Sulfur in gas dissolves in water and becomes molecule or ion in liquid phase. Sulfur is transferred from the gas phase to the liquid phase. This process is a physical process, following Henry's law.
In the process of biological desulfurization, the sulfur in the aqueous solution diffuses into the biofilm and is absorbed by microorganisms. Sulfur is transformed from water to microorganism, which is used as nutrition and energy of microorganism.
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2021-02-22
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