據(jù)悉，生物脫硫技術(shù)包括生物過(guò)濾、生物吸附和滴濾。這三個(gè)系統(tǒng)是開放系統(tǒng)，它們的微生物種群隨環(huán)境的變化而變化。
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(diǎn)：
characteristic:
1、效率高：硫化氫清理率達(dá)98.5%。
1. High efficiency: the removal rate of hydrogen sulfide is 98.5%.
2、高適應(yīng)范圍：可處理硫化氫濃度達(dá)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(yùn)行成本較低。
3. Low cost: compared with other desulfurization skills, the operation cost is lower.
4、高平安性:設(shè)有多種保護(hù)裝置。
4. High safety: with a variety of protective devices.
5、無(wú)人值守：系統(tǒng)通過(guò)在線監(jiān)測(cè)系統(tǒng)全自動(dòng)運(yùn)行。
5. Unattended: the system runs automatically through online monitoring system.
6、維護(hù)簡(jiǎn)單：少量的維護(hù)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(gè)步驟：
There are three steps in biological desulfurization
1、溶解：
1. Dissolution:
廢氣與水或固體表面水膜的接觸是溶于水或液相的分子或離子，即惡臭物質(zhì)從氣相轉(zhuǎn)移到液相，這一步就是亨利物理過(guò)程定律。
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.
2、吸附和吸收：
2. Adsorption and absorption:
水溶液中的惡臭成分被微生物吸收。水從水中轉(zhuǎn)移到微生物中，作為吸收劑的水被復(fù)生和回收，然后新的有氣味的成分被溶解。
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(jìn)到微生物胞體的氣味成分被區(qū)分為微生物生命活動(dòng)的動(dòng)能或營(yíng)養(yǎng)物質(zhì)，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(jìn)到微生物胞體的物質(zhì)被胞體里的酶氧化和分化，合成產(chǎn)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(gè)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
含硫氣與水或固體表面的水膜接觸，氣體中的硫溶于水，在液相中變成分子或離子。硫從氣相轉(zhuǎn)移到液相。這個(gè)過(guò)程是一個(gè)物理過(guò)程，遵循亨利定律。
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.
生物脫硫時(shí)，水溶液中的硫在濃度差的推動(dòng)下擴(kuò)散到生物膜中，被微生物吸收。硫由水轉(zhuǎn)化為微生物，作為微生物的營(yíng)養(yǎng)和能量。
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
