Method for simultaneously removing high-load sulfur dioxide and nitrogen oxide in waste gas
AssigneesNanjing University, Nanjing University Yixing Environmental Protection Research Institute
InventorsKan Li, Xuxiang Zhang, Hongqiang Ren, Peishi Sun, Zhichao Zhang
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Abstract
A method for simultaneously removing high-load sulfur dioxide and nitrogen oxide in waste gas, relating to the technical field of industrial waste gas purification by biological methods. According to the method, the waste gas is led into a simultaneous desulfurization and denitrification packing tower and removed, microbial floras for simultaneously removing the sulfur dioxide and the nitrogen oxide are loaded on fillers of the packing tower, and the molar concentration ratio of the sulfur dioxide to the nitrogen oxide in the waste gas is (0.76˜1.06):1.
Claims6
A method for simultaneously removing high load sulfur dioxide and nitrogen oxides in waste gas, characterized by:
- the method comprising introducing waste gas into a packed biotrickling-filter (BF) to synchronously desulfurize and denitrify the waste gas, packings in the BF are loaded with microbial flora for synchronous removal, and a molar concentration ratio of sulfur dioxide and nitrogen oxides in the waste gas is (0.76˜1.06):1,
- wherein a concentration of sulfur dioxide in the waste gas is 2850-3050 mg/m3, and a concentration of nitrogen oxides in the waste gas is 2150-2230 mg/m3, and
- wherein the microbial flora includes:
- Arthrobacter, Nitrospira, Flavobacterium, Pseudomonas, Rhodococcus, Ralstonia, Hyphomicrobium, Pseudomonas, Rhodococcus, Bacillus, Acinetobacter, Candidatus Acinetobacter, Zoogloea, Hyphomicrobium, Dietzia, Burkholderia, Mycobacterium, Pseudomonas, Rhodococcus and Paenibacillus, and the source of the microbial flora is biological sludge.
Dependencies are inferred from the claim text.