Simultaneous nitrogen and sulphur removal effect and functional bacteria of sulfur-driven autotrophic denitrification ASBR process
In this paper, the influence factors of nitrogen and sulphur removal effect and main functional bacteria were investigated in a sulfide autotrophic denitrification-anaerobic sequencing batch reactor(SDAD-ASBR). The results showed that when n(S)/n(N)(recorded as S/N) was 1, and the influent S2- and N...
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Editorial Office of Industrial Water Treatment
2024-10-01
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| Series: | Gongye shui chuli |
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| Online Access: | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2023-0794 |
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| author | YAN Hua GUO Changzi ZHAO Wanqin ZHANG Xuli HAN Yi WANG Yixu |
| author_facet | YAN Hua GUO Changzi ZHAO Wanqin ZHANG Xuli HAN Yi WANG Yixu |
| author_sort | YAN Hua |
| collection | DOAJ |
| description | In this paper, the influence factors of nitrogen and sulphur removal effect and main functional bacteria were investigated in a sulfide autotrophic denitrification-anaerobic sequencing batch reactor(SDAD-ASBR). The results showed that when n(S)/n(N)(recorded as S/N) was 1, and the influent S2- and NO3--N were 300 mg/L and 131.25 mg/L, respectively, there was no nitrite formation, and the sulfides and nitrates removal rates were 99.97% and 84.34%, respectively. However, as the S/N was reduced, the concentration of nitrite in the effluent increased. The hydraulic retention time(HRT) had a significant effect on the removal of nitrate, but had little effect on the sulphide removal. When HRT was shortened from 12 h to 2.4 h, the removal rates of sulfide were all above 99%, while the removal rate of nitrate decreased from 93.14% to 77.04%. The main functional genera for nitrogen and sulphur removal in the system were Exiguobacterium, Clostridium, Bacillus, Thiobacillus and Sphingomonas. |
| format | Article |
| id | doaj-art-b11b4a9acab5482bb862e73befb6e61f |
| institution | Kabale University |
| issn | 1005-829X |
| language | zho |
| publishDate | 2024-10-01 |
| publisher | Editorial Office of Industrial Water Treatment |
| record_format | Article |
| series | Gongye shui chuli |
| spelling | doaj-art-b11b4a9acab5482bb862e73befb6e61f2024-12-10T03:01:18ZzhoEditorial Office of Industrial Water TreatmentGongye shui chuli1005-829X2024-10-01441015115710.19965/j.cnki.iwt.2023-07941005-829X（2024）10-0151-07Simultaneous nitrogen and sulphur removal effect and functional bacteria of sulfur-driven autotrophic denitrification ASBR processYAN Hua0GUO Changzi1ZHAO Wanqin2ZHANG Xuli3HAN Yi4WANG Yixu5School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, ChinaSchool of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, ChinaSchool of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, ChinaSchool of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, ChinaSchool of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, ChinaSchool of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, ChinaIn this paper, the influence factors of nitrogen and sulphur removal effect and main functional bacteria were investigated in a sulfide autotrophic denitrification-anaerobic sequencing batch reactor(SDAD-ASBR). The results showed that when n(S)/n(N)(recorded as S/N) was 1, and the influent S2- and NO3--N were 300 mg/L and 131.25 mg/L, respectively, there was no nitrite formation, and the sulfides and nitrates removal rates were 99.97% and 84.34%, respectively. However, as the S/N was reduced, the concentration of nitrite in the effluent increased. The hydraulic retention time(HRT) had a significant effect on the removal of nitrate, but had little effect on the sulphide removal. When HRT was shortened from 12 h to 2.4 h, the removal rates of sulfide were all above 99%, while the removal rate of nitrate decreased from 93.14% to 77.04%. The main functional genera for nitrogen and sulphur removal in the system were Exiguobacterium, Clostridium, Bacillus, Thiobacillus and Sphingomonas.https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2023-0794sulfur-driven autotrophic denitrificationanaerobic sequencing batch reactornitrate and sulfide removalfunctional bacteria |
| spellingShingle | YAN Hua GUO Changzi ZHAO Wanqin ZHANG Xuli HAN Yi WANG Yixu Simultaneous nitrogen and sulphur removal effect and functional bacteria of sulfur-driven autotrophic denitrification ASBR process Gongye shui chuli sulfur-driven autotrophic denitrification anaerobic sequencing batch reactor nitrate and sulfide removal functional bacteria |
| title | Simultaneous nitrogen and sulphur removal effect and functional bacteria of sulfur-driven autotrophic denitrification ASBR process |
| title_full | Simultaneous nitrogen and sulphur removal effect and functional bacteria of sulfur-driven autotrophic denitrification ASBR process |
| title_fullStr | Simultaneous nitrogen and sulphur removal effect and functional bacteria of sulfur-driven autotrophic denitrification ASBR process |
| title_full_unstemmed | Simultaneous nitrogen and sulphur removal effect and functional bacteria of sulfur-driven autotrophic denitrification ASBR process |
| title_short | Simultaneous nitrogen and sulphur removal effect and functional bacteria of sulfur-driven autotrophic denitrification ASBR process |
| title_sort | simultaneous nitrogen and sulphur removal effect and functional bacteria of sulfur driven autotrophic denitrification asbr process |
| topic | sulfur-driven autotrophic denitrification anaerobic sequencing batch reactor nitrate and sulfide removal functional bacteria |
| url | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2023-0794 |
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