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生物脫硫技術(shù)與特點你了解多少?

  一、生物脫硫技術(shù)簡介

  1、 Brief introduction of biological desulfurization technology
  沼氣生物脫硫是20世紀90年代發(fā)展起來的新技術(shù),是在常溫常壓下利用利用微生物實現(xiàn)硫的價態(tài)轉(zhuǎn)換的一種新技術(shù)。生物脫硫工藝過程是將一定量的空氣導(dǎo)入含有硫化氫的沼氣中,在反應(yīng)器內(nèi)裝有大量的生物填料,它們?yōu)榧毦敝程峁┏浞值目臻g。營養(yǎng)液的循環(huán)使填料保持潮濕狀態(tài),并補充細菌生長繁殖所需營養(yǎng)。專屬絲硫菌屬、硫桿菌屬在新陳代謝的過程中吸收硫化氫,并將他們轉(zhuǎn)化為單質(zhì)硫,進而轉(zhuǎn)化為硫酸。
  Biogas biological desulfurization is a new technology developed in the 1990s. It is a new technology using microorganisms to realize the valence state conversion of sulfur under normal temperature and pressure. The process of biological desulfurization is to introduce a certain amount of air into the biogas containing hydrogen sulfide, and a large number of biological fillers are installed in the reactor, which provide sufficient space for bacterial reproduction. The circulation of nutrient solution keeps the packing moist and replenishes the nutrition needed for the growth and reproduction of bacteria. In the process of metabolism, Thiobacillus and Rhizobium absorb hydrogen sulfide and convert them into elemental sulfur and then sulfuric acid.
            生物脫硫技術(shù)
  二、生物脫硫原理
  2、 Principle of biological desulfurization
  沼氣生物脫硫是利用脫硫細菌在一定的溫度、濕度和微氧條件下將 H2S轉(zhuǎn)化為單質(zhì)硫或亞硫酸。主要反應(yīng)如下:
  Biogas biological desulfurization is to use desulfurization bacteria to convert H2S into elemental sulfur or sulfite under certain temperature, humidity and micro oxygen conditions. The main reactions were as follows:
  H2S + 1/2O2 → S(單質(zhì)) + H2O    (1)
  H2S + 1 / 2O2 → s (Elemental) + H2O (1)
  H2S + 3/2O2 → H2SO3  (2)
  H2S + 3/2O2 → H2SO3  (2)
  根據(jù)提供氧量的不同,產(chǎn)物有所不同:當氧量適量時,發(fā)生反應(yīng)(1),硫化氫主要轉(zhuǎn)化為單質(zhì)硫;當氧氣過量時,發(fā)生反應(yīng)(2),硫化氫主要轉(zhuǎn)化為亞硫酸。根據(jù)上述反應(yīng),可以通過控制供氧量和氧化還原電位來控制產(chǎn)物的類型。
  According to the different oxygen supply, the products are different: when the oxygen content is appropriate, reaction (1) occurs, and hydrogen sulfide is mainly converted into elemental sulfur; when oxygen is excessive, reaction (2) occurs, and hydrogen sulfide is mainly converted into sulfite. According to the above reaction, the type of product can be controlled by controlling oxygen supply and redox potential.
  三、沼氣生物脫硫的特點
  3、 Characteristics of biogas biological desulfurization
  1、率: 硫化氫去除率高達98.5%
  1. High efficiency: removal rate of hydrogen sulfide is up to 98.5%
  2、高適應(yīng)范圍: 可處理硫化氫濃度高達1.5% (15000ppm)
  2. High application range: it can treat hydrogen sulfide concentration as high as 1.5% (15000ppm)
  3、低成本: 與其它脫硫技術(shù)相比,運行成本
  3. Low cost: compared with other desulfurization technologies, the operation cost is the lowest
  4、高性: 無二次污染
  4. High safety: no secondary pollution
  5、無人值守: 系統(tǒng)通過在線監(jiān)測系統(tǒng)全自動運行
  5. Unattended: the system runs automatically through the online monitoring system
  6、維護簡單: 少量的維護工作
  6. Simple maintenance: a small amount of maintenance work

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