生物脫硫技能包括生物過濾、生物吸附和滴濾。這三個系統(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。
Biological desulfurization skills include biofiltration, biosorption and trickle filtration. These three microbial systems change with the environment.、
生物脫硫的特點(diǎn)?
Characteristics of biological desulfurization?
1、效率高:?硫化氫除去率達(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 adaptive range:? Can handle hydrogen sulfide concentration up to 1.5%? (15000ppm)
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 low
4、高平安性:?設(shè)有多種保護(hù)裝置
4. High security:? It is equipped with a variety of protection devices
5、無人值守:?系統(tǒng)通過在線監(jiān)測系統(tǒng)全自動運(yùn)行
5. Unattended:? The system operates automatically through the on-line monitoring system
6、維護(hù)簡單:?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? (e.g. periodic calibration of pH probe)
生物脫硫的三個步驟:
Three steps of biological desulfurization:
溶解
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, odor substances are transferred from gas phase to liquid phase, which is Henry's law of physical process.
吸附和吸收
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. Water is transferred from the water to microorganisms, and the water as an absorbent is regenerated and recycled, and then the new odorous components are dissolved.
生物降解
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的動能或營養(yǎng)物質(zhì),從而除去污染物。
The odor components entering the microbial cell body are divided into kinetic energy or nutrients of microbial life activities, so as to remove 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。
Substances entering the microbial cell body are oxidized and differentiated by enzymes in the cell body to synthesize and 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 by using the double membrane biofilm Theory:
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。這個過程是一個物理過程,遵循亨利定律。
Sulfur containing gas contacts with water or the water film on the solid surface. The sulfur in the gas dissolves in water and becomes molecules or ions in the liquid phase. Sulfur is transferred from the gas phase to the liquid phase. This process is a physical process and follows Henry's law.
水溶液中的硫在濃度差的推動下擴(kuò)散到生物膜中,被微生物吸收。硫由水轉(zhuǎn)化為微生物,作為微生物的營養(yǎng)和能量。
The sulfur in the aqueous solution diffuses into the biofilm and is absorbed by microorganisms under the promotion of concentration difference. Sulfur is converted from water to microorganisms as nutrition and energy for microorganisms.
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