“吃掉”硫化物的微生物

　　Microorganisms capable of "eating" sulfides

　　當下，業(yè)界含硫煙氣凈化方法近百種，常用技術分為濕法脫硫和干法脫硫，但這兩種脫硫工藝均存在能耗高、處理費用貴、廢水和污泥處置難等問題。為解決這些問題，科研工作者們競相研發(fā)能耗低、效率高、綠色環(huán)保的新型脫硫技術。

　　At present, there are nearly a hundred methods for purifying sulfur-containing flue gas in the industry, and commonly used technologies are wet desulfurization and dry desulfurization. However, both desulfurization processes have problems such as high energy consumption, expensive treatment costs, and difficult disposal of wastewater and sludge. To solve these problems, researchers are competing to develop new desulfurization technologies with low energy consumption, high efficiency, and green environmental protection.

　　生物脫硫技術像是請了一群微生物“清潔工”，它們悄無聲息地潛入煙氣中，將那些不受歡迎的硫化合物“請出”，整個過程溫和而高效。舉例：就好比家里的魚缸水臟后，并不是直接倒掉換水，而是放入一些能夠分解雜質的魚兒或水草。

　　Biological desulfurization technology is like hiring a group of microbial "cleaners" who silently infiltrate into the flue gas, "removing" unwanted sulfur compounds. The entire process is gentle and efficient. For example, it's like when the water in a fish tank at home gets dirty, instead of directly pouring it out and changing the water, some fish or aquatic plants that can decompose impurities are added.

　　培養(yǎng)出來硫酸鹽還原菌系列、硫氧化細菌系列等一批擁有自主知識產權的高活性、高耐受性的特種微生物菌株。

　　Cultivate a series of highly active and tolerant special microbial strains with independent intellectual property rights, such as sulfate reducing bacteria series and sulfur oxidizing bacteria series.

　　生物滴濾塔中堿液將煙氣中二氧化硫吸收并轉化為硫酸根和亞硫酸根后，正是通過硫酸鹽還原菌，將硫酸根和亞硫酸根還原成硫離子。隨后，硫氧化菌把硫離子轉化為生物硫黃，進而實現(xiàn)煙氣中硫的資源化利用。

　　The alkaline solution in the biological drip filtration tower absorbs and converts sulfur dioxide in the flue gas into sulfate and sulfite ions, which are then reduced to sulfur ions by sulfate reducing bacteria. Subsequently, sulfur oxidizing bacteria convert sulfur ions into biological sulfur, thereby achieving the resource utilization of sulfur in flue gas.

　　“尾氣焚燒爐煙氣經生物脫硫后，二氧化硫濃度從6500毫克/標準立方米降至小于10毫克/標準立方米，二氧化硫去除率達到99.8%。”

　　After biological desulfurization, the sulfur dioxide concentration in the flue gas from the tail gas incinerator decreased from 6500 milligrams per standard cubic meter to less than 10 milligrams per standard cubic meter, and the sulfur dioxide removal rate reached 99.8%

　　通過微生物的還原和氧化作用，不僅實現(xiàn)了硫化物的高效轉化和單質硫的回收，還解決了原絡合鐵脫硫系統(tǒng)硫黃堵塞問題。這種設計減少了占地面積，簡化了操作流程，降低了運營成本，提高了生物脫硫效率。

　　Through the reduction and oxidation of microorganisms, not only has efficient conversion of sulfides and recovery of elemental sulfur been achieved, but also the problem of sulfur blockage in the original chelated iron desulfurization system has been solved. This design reduces the footprint, simplifies the operation process, lowers operating costs, and improves the efficiency of biological desulfurization.

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