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生物脱硫的工艺流程!

时间:2020-07-06
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  基于生物硫循环的生物脱硫方法的基本原理是:首先,在硫化物氧化细菌的催化作用下,硫化物被生物氧化成单质硫并可以回收利用,而在含硫化物的废水中,SOB氧化和硫化的物理机理如下:
  The basic principle of biological desulfurization method based on biological sulfur cycle is as follows: firstly, under the catalysis of sulfide oxidizing bacteria, sulfide is biologically oxidized to elemental sulfur and can be recycled. In sulfide containing wastewater, the physical mechanism of sob oxidation and sulfide is as follows:
  从以上反应式可以看出,硫化物的SOB氧化过程分为两个步骤,初始反应较快,硫化物将释放两个电子,产生的元素硫聚集在细胞外,这些微小的颗粒涂有一层生物聚合物。在第二步中,反应缓慢,并且更初生成的硫被进一步氧化形成亚硫酸盐或硫酸盐。对于反应器,为了避免第二步骤中的反应,必须控制溶解的氧和硫化物的负载。
  It can be seen from the above reaction formula that the process of sulfur sulfide's sob oxidation can be divided into two steps. The initial reaction is fast. The sulfide will release two electrons, and the elemental sulfur produced will accumulate outside the cell. These tiny particles are coated with a layer of biopolymer. In the second step, the reaction is slow and the initial sulfur is further oxidized to form sulfite or sulfate. For the reactor, in order to avoid the reaction in the second step, the loading of dissolved oxygen and sulfide must be controlled.
             生物脱硫
  在硫酸盐还原细菌(SRB)的作用下,废水中过度氧化的硫酸根(SO0 :)被还原为硫化物(包括H2S,S2和HS),其表示为:
  Under the action of sulfate reducing bacteria (SRB), the over oxidized sulfate (SO0:) in wastewater is reduced to sulfide (including H2S, S2 and HS)
  然后,使用硫化物氧化细菌(SOB)将硫化物氧化成元素硫,然后循环使用。
  The sulfide is then oxidized to elemental sulfur by sulfide oxidizing bacteria (SOB) and recycled.
  生物脱硫技术改变了传统的理论极限。硫化物氧化菌与硫酸盐还原菌结合处理含硫废液的理论已经逐渐发展。因为硫化物氧化细菌和硫酸盐还原细菌易于培养并且具有高活性。好氧和厌氧反应器使工程应用成为可能。
  Biological desulfurization technology has changed the traditional theoretical limit. The theory of sulfide oxidizing bacteria combined with sulfate reducing bacteria has been developed gradually. Because sulfide oxidizing bacteria and sulfate reducing bacteria are easy to cultivate and have high activity. Aerobic and anaerobic reactors make engineering application possible.
  生物脱硫在生物脱硫技术中作为生产的催化剂起着非常重要的作用。根据上述生物脱硫原理,可以知道含硫废碱溶液的生物脱硫一般包括氧化反应和还原反应两个阶段,分别由硫化物氧化菌和硫酸盐还原菌组成。
  Biological desulfurization plays a very important role as a catalyst in the production of biological desulfurization technology. According to the above-mentioned biological desulfurization principle, it can be known that the biological desulfurization of sulfur-containing waste alkali solution generally includes two stages: oxidation reaction and reduction reaction, which are composed of sulfide oxidizing bacteria and sulfate reducing bacteria respectively.
  以上是关于生物脱硫工艺流程的详细介绍,想要了解更多欢迎关注我们的http://www.jfshop.net官方网站。
  The above is about the biological desulfurization process flow in detail, want to know more, welcome to pay attention to our http://www.jfshop.net Official website.