1、氧化亚铁硫杆菌：是生物脱硫领域最为成功的代表菌种之一。它嗜酸，生长的最佳 pH 值为 2.0 - 2.2 。该菌种能利用亚铁离子、元素硫及还原性硫化物作为能源，在有氧条件下，将硫化物氧化为硫酸，从而实现脱硫。在处理含硫矿物、工业废气废水等方面表现出色，例如在一些矿山酸性废水处理中，可有效去除其中的硫化物，降低环境污染风险。​

1. Thiobacillus ferrooxidans is one of the most successful representative strains in the field of biological desulfurization. It is acidophilic, and the optimal pH for growth is 2.0-2.2. This strain can utilize ferrous ions, elemental sulfur, and reducing sulfides as energy sources to oxidize sulfides into sulfuric acid under aerobic conditions, thereby achieving desulfurization. Excellent performance in treating sulfur-containing minerals, industrial waste gas and wastewater, etc. For example, in the treatment of acidic wastewater from some mines, sulfides can be effectively removed, reducing environmental pollution risks. ​

2、脱氮硫杆菌：属于化能自养型细菌，能够在厌氧环境下，以硝酸盐作为电子受体，将硫化物氧化为单质硫或硫酸盐，同时实现脱硫和脱氮的效果。在一些污水处理厂中，可利用其这一特性，同步处理污水中的含硫和含氮污染物，减少处理流程和成本。​

2. Denitrifying sulfur bacteria: belonging to chemoautotrophic bacteria, they can use nitrate as an electron acceptor in anaerobic environments to oxidize sulfides into elemental sulfur or sulfate, while achieving desulfurization and denitrification effects. In some sewage treatment plants, this characteristic can be utilized to simultaneously treat sulfur-containing and nitrogen-containing pollutants in sewage, reducing treatment processes and costs. ​

3、排硫杆菌：同样是具有脱硫能力的菌种，它可以利用多种含硫化合物作为能源生长，在合适的环境中，将硫从底物中分离转化，在工业废气、废水以及某些特定工业生产过程中的脱硫环节发挥作用。

3. Sulfur oxidizing bacteria: also a strain of bacteria with desulfurization ability, it can use various sulfur-containing compounds as energy sources to grow. In a suitable environment, it separates and converts sulfur from substrates, and plays a role in the desulfurization process of industrial waste gas, wastewater, and certain specific industrial production processes.

应用优势

Application advantages

1、环保友好：生物脱硫菌种在工作过程中，无需添加催化剂和额外氧化剂（仅需空气），避免了化学催化剂带来的二次污染风险。而且产生的生物污泥量少，减少了后续污泥处理的难题和成本。同时，整个脱硫过程产生的生物污染极少，契合当下绿色环保的发展理念。​

1. Environmentally friendly: Biological desulfurization strains do not require the addition of catalysts or additional oxidants during operation (only air is needed), avoiding the risk of secondary pollution caused by chemical catalysts. Moreover, the amount of biological sludge generated is small, reducing the difficulties and costs of subsequent sludge treatment. At the same time, the entire desulfurization process generates very little biological pollution, which is in line with the current development concept of green environmental protection. ​

2、能耗低廉：相较于传统的物理化学脱硫方法，生物脱硫依靠微生物的自然代谢活动进行，无需高温、高压等苛刻条件，大大降低了能源消耗。以工业废气脱硫为例，生物脱硫系统的能耗仅为传统湿法脱硫的 30% - 50%，有效节约了企业的运营成本。​

2. Low energy consumption: Compared to traditional physical and chemical desulfurization methods, biological desulfurization relies on the natural metabolic activities of microorganisms, without the need for harsh conditions such as high temperature and high pressure, greatly reducing energy consumption. Taking industrial waste gas desulfurization as an example, the energy consumption of biological desulfurization system is only 30% -50% of traditional wet desulfurization, effectively saving the operating costs of enterprises. ​

3、硫资源回收：生物脱硫过程能够将硫化物转化为单质硫，实现硫资源的回收利用。单质硫在化工、农业等领域具有广泛用途，如用于制造硫酸、化肥等。这不仅减少了硫排放对环境的危害，还创造了额外的经济价值，实现了环境效益与经济效益的双赢。​

3. Sulfur resource recovery: The biological desulfurization process can convert sulfides into elemental sulfur, achieving the recycling and utilization of sulfur resources. Elemental sulfur has a wide range of applications in chemical, agricultural, and other fields, such as manufacturing sulfuric acid, fertilizers, etc. This not only reduces the harm of sulfur emissions to the environment, but also creates additional economic value, achieving a win-win situation between environmental and economic benefits. ​

4、深度脱硫：某些生物脱硫菌种能够对一些传统方法难以处理的有机硫化合物进行脱除，达到深度脱硫的效果。例如对于石油产品中的二苯并噻吩、苯并噻吩等有机硫，特定菌种可有效去除，满足日益严格的燃油硫含量标准。

4. Deep desulfurization: Some biological desulfurization bacteria can remove organic sulfur compounds that are difficult to treat by traditional methods, achieving the effect of deep desulfurization. For example, specific bacterial strains can effectively remove organic sulfur such as dibenzothiophene and benzothiophene in petroleum products, meeting increasingly stringent fuel sulfur content standards.

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