Effects of hydrochar and co-substrate on phenol anaerobic degradation
Anaerobic digestion (AD) is a sustainable biotechnology, which has been applied in the treatment of organic waste. Refractory phenolic compounds, as the main toxic substances in the anaerobic digestion process, usually undergo complex and slow degradation. The addition of hydrochar and co-substrates...
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Editorial Office of Energy Environmental Protection
2024-02-01
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| Series: | 能源环境保护 |
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| Online Access: | https://eep1987.com/en/article/4787 |
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| author | SHAO Qianqi LUO Tao ZHANG Shicheng LUO Gang* |
| author_facet | SHAO Qianqi LUO Tao ZHANG Shicheng LUO Gang* |
| author_sort | SHAO Qianqi |
| collection | DOAJ |
| description | Anaerobic digestion (AD) is a sustainable biotechnology, which has been applied in the treatment of organic waste. Refractory phenolic compounds, as the main toxic substances in the anaerobic digestion process, usually undergo complex and slow degradation. The addition of hydrochar and co-substrates has been found to effectively enhance the efficiency of phenol anaerobic digestion. This study investigated the simultaneous addition of hydrochar and co-substrates and its impact on anaerobic degradation of phenol. Results indicated that the addition of hydrochar and co-substrates reduced the lag phase of phenol anaerobic digestion, shortening it from 77.5 days in the control to 24.6~59.3 days. When hydrochar and co-substrates were added simultaneously, the maximum methane production rate (Rm) increased from 3.53 mL/d to 4.86~6.80 mL/d. However, when only co-substrates were added and the concentration was too high, it hindered the stimulation of Rm. The optimal concentration for glucose co-substrate addition was approximately between 1.0 and 2.0 g/L. A high concentration of glucose in the environment might enrich other competitive microorganisms, leading to the inhibition of benzoic acid-degrading bacteria and acetate-consuming methane-producing bacteria. Hydrochar also promoted the enrichment of benzoic acid degraders, but the influence of glucose co-substrate concentration on community composition was mitigated in the presence of hydrochar. This study utilized hydrochar and co-substrates to enhance anaerobic degradation of phenol, providing a novel approach to improve the efficiency of phenol anaerobic digestion. |
| format | Article |
| id | doaj-art-d3b7b7e2e37c4bdf9c33e77ad31ad69a |
| institution | Kabale University |
| issn | 2097-4183 |
| language | zho |
| publishDate | 2024-02-01 |
| publisher | Editorial Office of Energy Environmental Protection |
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| series | 能源环境保护 |
| spelling | doaj-art-d3b7b7e2e37c4bdf9c33e77ad31ad69a2025-08-20T03:44:33ZzhoEditorial Office of Energy Environmental Protection能源环境保护2097-41832024-02-0138111912710.20078/j.eep.20240113Effects of hydrochar and co-substrate on phenol anaerobic degradationSHAO Qianqi0LUO Tao1ZHANG Shicheng2LUO Gang*31. Department of Environmental Science and Engineering, Fudan University; 2. Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Wastes; 3. Shanghai Institute of Pollution Control and Ecological Security1. Department of Environmental Science and Engineering, Fudan University; 2. Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Wastes; 3. Shanghai Institute of Pollution Control and Ecological Security; 4. Shanghai Jianke Environmental Technology Co., Ltd.1. Department of Environmental Science and Engineering, Fudan University; 2. Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Wastes; 3. Shanghai Institute of Pollution Control and Ecological Security1. Department of Environmental Science and Engineering, Fudan University; 2. Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Wastes; 3. Shanghai Institute of Pollution Control and Ecological SecurityAnaerobic digestion (AD) is a sustainable biotechnology, which has been applied in the treatment of organic waste. Refractory phenolic compounds, as the main toxic substances in the anaerobic digestion process, usually undergo complex and slow degradation. The addition of hydrochar and co-substrates has been found to effectively enhance the efficiency of phenol anaerobic digestion. This study investigated the simultaneous addition of hydrochar and co-substrates and its impact on anaerobic degradation of phenol. Results indicated that the addition of hydrochar and co-substrates reduced the lag phase of phenol anaerobic digestion, shortening it from 77.5 days in the control to 24.6~59.3 days. When hydrochar and co-substrates were added simultaneously, the maximum methane production rate (Rm) increased from 3.53 mL/d to 4.86~6.80 mL/d. However, when only co-substrates were added and the concentration was too high, it hindered the stimulation of Rm. The optimal concentration for glucose co-substrate addition was approximately between 1.0 and 2.0 g/L. A high concentration of glucose in the environment might enrich other competitive microorganisms, leading to the inhibition of benzoic acid-degrading bacteria and acetate-consuming methane-producing bacteria. Hydrochar also promoted the enrichment of benzoic acid degraders, but the influence of glucose co-substrate concentration on community composition was mitigated in the presence of hydrochar. This study utilized hydrochar and co-substrates to enhance anaerobic degradation of phenol, providing a novel approach to improve the efficiency of phenol anaerobic digestion.https://eep1987.com/en/article/4787hydrcharphenol degradationcometabolismanaerobic digestionmicrobial community |
| spellingShingle | SHAO Qianqi LUO Tao ZHANG Shicheng LUO Gang* Effects of hydrochar and co-substrate on phenol anaerobic degradation 能源环境保护 hydrchar phenol degradation cometabolism anaerobic digestion microbial community |
| title | Effects of hydrochar and co-substrate on phenol anaerobic degradation |
| title_full | Effects of hydrochar and co-substrate on phenol anaerobic degradation |
| title_fullStr | Effects of hydrochar and co-substrate on phenol anaerobic degradation |
| title_full_unstemmed | Effects of hydrochar and co-substrate on phenol anaerobic degradation |
| title_short | Effects of hydrochar and co-substrate on phenol anaerobic degradation |
| title_sort | effects of hydrochar and co substrate on phenol anaerobic degradation |
| topic | hydrchar phenol degradation cometabolism anaerobic digestion microbial community |
| url | https://eep1987.com/en/article/4787 |
| work_keys_str_mv | AT shaoqianqi effectsofhydrocharandcosubstrateonphenolanaerobicdegradation AT luotao effectsofhydrocharandcosubstrateonphenolanaerobicdegradation AT zhangshicheng effectsofhydrocharandcosubstrateonphenolanaerobicdegradation AT luogang effectsofhydrocharandcosubstrateonphenolanaerobicdegradation |