Biological removal effect for odor in medical waste steam treatment process

3rd International Conference on Energy Materials and Environment Engineering

能源学;生态环境科学

Dengchao, Jin^1 ; Hongjun, Teng^2 ; Zhenbo, Bao^1 ; Yang, Li^1

Engineering and Technology College, Tianjin Agricultural University, Tianjin

300384, China^1

Clinic, Tianjin Agricultural University, Tianjin

300384, China^2

关键词: Average concentration;    Biological deodorizations;    Biological removal;    Dimethyl sulfide;    Medical waste disposals;    Methyl disulfides;    National standard;    Removal efficiencies;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/61/1/012142/pdf
DOI  :  10.1088/1755-1315/61/1/012142

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Malodorous gas will be produced in medical waste steam treatment process, which mainly consist of volatile organic compounds. Biological deodorization is a low cost deodorization technology. In this paper, biological deodorization technology in an actual medical waste disposal project was studied, and its removal efficiencies of VOCs were analyzed. The contents of four volatile organic compounds in exhaust gas were determined by gas chromatography and methylene blue spectrophotometry. The average concentration of them were: methyl-sulfhydryl 0.037mg/m3, dimethyl sulfide 0.046mg/m3, methyl disulfide 0.904mg/m3and hydrogen sulfide 0.204mg/m3. After they were treated by biological deodorization, the average removal rates of the four compounds were methyl-sulfhydryl 93%, dimethyl sulfide 92.6%, methyl disulfide 97.6% and hydrogen sulphide 92.6%.The results showed that the four kinds of VOCs had good deodorization effect, and the national standards for emissions requirements can be met well.