Biofilm formation of a heterotrophic bacterium on the novel packing material and the removal of hydrogen sulfide produced in a slaughtering process by biotrickling filter
ZHUANG Rong-yu1, WANG Lei-gang2, LI Mei-yan3, REN Yu-ting4, QIAN Li-zhen5, GAO Hua-sheng6, LIU Jun7, ZHAO Yang-yong8, CHEN Jian2, ZHU Hong-qing2
1. Key Laboratory of Animal Protein Foods Deep Processing of Zhejiang Province, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo 315800, China;
2. Ningbo Qingyun Environmental Protection Technology Co., Ltd., Ningbo 315034, China;
3. Yiwu Zhongde After-School Education Guidance Station Co., Ltd., Yiwu 322000, China;
4. Zhejiang Jianchuang Testing and Technology Service CO., Ltd., Hangzhou 310051, China;
5. Zhejiang Xinkongshun Food Co., Ltd., Lishui 321400, China;
6. School of Civil and Environmental Engineering, Ningbo University, Ningbo 315211, China;
7. Guangdong Guoqian Environmental and Energy-Saving Technology Institute, Co., Ltd., Guangzhou 510663, China;
8. Zhejiang Easy Testing Environmental Technology Co., Ltd., Ningbo 315100, China
The microbial taxonomic composition distribution of biofilm on the novel packing material was studied. The heterotrophic desulfurization bacterium Bacilluscereus ZJNB-B3 was inoculated and injected into an aeration liquid reactor containing activated sludge and LEVAPOR novel packing material. The microbial diversity of the bacteria in the reactor was evaluated. The taxonomic composition distribution of Genus-level showed that Bacillus had a higher relative abundance on the LEVAPOR packing material while lower in activated sludge. On the 10th day of the aeration reaction, the maximum relative abundance of the Bacillus on the LEVAPOR packing samples was achieved. Therefore, the Bacilluscereus ZJNB-B3 strain has excellent affinity with LEVAPOR packing material. Afterward, the removal of hydrogen sulfide of slaughtering sewage by biotrickling filter (BTF) inoculated with the desulfurization bacterium was investigated. The treatment capacity was 2000m3/h. The start-up period of the BTF inoculated with the desulfurization bacterium was 7days, which was 7days shorter than that of the BTF only inoculated with activated sludge. The stable operation of the enhanced BTF was carried out for 30days. When the inlet concentration of H2S was 4.92~9.54mg/m3, the removal efficiency (RE) for H2S was achieved by 98%~99%. When the empty bed residence time (EBRT) were 10s, 21s, and 30s, the RE was above 94%, 98% and 99% respectively. And the inlet H2S concentration of 1.0~10mg/m3 had no obvious influence on the RE. When the inlet load was 0.60~1.14g/(m3·h), the RE was above 98%. The emission of H2S was lower than the national emission standards for odor pollutants.
庄荣玉, 王磊刚, 李美燕, 任雨婷, 潜丽珍, 高华生, 刘军, 赵洋甬, 陈健, 朱红青. 异养菌与新型填料成膜性及BTF处理屠宰H2S废气[J]. 中国环境科学, 2020, 40(3): 1106-1115.
ZHUANG Rong-yu, WANG Lei-gang, LI Mei-yan, REN Yu-ting, QIAN Li-zhen, GAO Hua-sheng, LIU Jun, ZHAO Yang-yong, CHEN Jian, ZHU Hong-qing. Biofilm formation of a heterotrophic bacterium on the novel packing material and the removal of hydrogen sulfide produced in a slaughtering process by biotrickling filter. CHINA ENVIRONMENTAL SCIENCECE, 2020, 40(3): 1106-1115.
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