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原理：酸式生物脫硫工藝為生物滴濾池工藝。沼氣進入脫硫塔后， 在塔內(nèi)微生物、氧氣和循環(huán)水的作用下完成H2S的吸收和降 解，凈化后的氣體從塔頂排出。微生物塔內(nèi)附著生長，非游 離態(tài)。
Principle: The acid type biological desulfurization process is a biological trickling filter process. After entering the desulfurization tower, biogas is absorbed and degraded by microorganisms, oxygen, and circulating water inside the tower, and the purified gas is discharged from the top of the tower. Microbial growth within the tower, non free.
→ 2S + 2H2O （1）
→ 2S+2H2O (1)
→ 2H2SO4 （2）
→ 2H2SO4 (2)
酸式生物脫硫特點
Characteristics of acid based biological desulfurization
一、適用范圍：
1、 Applicable scope:
①沼氣中H2S含量為500ppm-6000ppm，若H2S含量為500ppm-3000ppm效果更 佳；H2S含量為3500ppm-6000ppm堿式的成本更低；②產(chǎn)氣原料為油性或者非油性均可；③用途為集中供氣和普通用氣；
① The H2S content in biogas is 500ppm-6000ppm, and the effect is better if the H2S content is 500ppm-3000ppm; The cost of basic formula with H2S content of 3500ppm-6000ppm is lower; ② The gas production raw materials can be either oily or non oily; ③ Intended for centralized gas supply and general use;
二、生物脫硫系統(tǒng)能夠確保脫硫后的沼氣中硫化氫含量≤ 20ppm，去除率達到 99%以上，很少有單質(zhì)S產(chǎn)生；塔內(nèi)惰性填料孔隙率高、阻力小，當進氣H2S含量＜4000ppm，1-2年需要清 洗填料；進氣H2S含量＞4000ppm，則半年清洗填料；三、營養(yǎng)液的pH值維持在1.5左右，通過控制溶解氧（DO）即可維持。運行溫 度為30℃
2、 The biological desulfurization system can ensure that the hydrogen sulfide content in the desulfurized biogas is ≤ 20ppm, with a removal rate of over 99%, and there is little production of elemental S; The inert filler inside the tower has high porosity and low resistance. When the H2S content in the intake air is less than 4000ppm, the filler needs to be cleaned within 1-2 years; If the H2S content in the intake air is greater than 4000ppm, clean the filler half a year; 3、 The pH value of the nutrient solution is maintained at around 1.5, which can be maintained by controlling dissolved oxygen (DO). Operating temperature is 30 ℃
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企業(yè)二維碼
2023-09-28
