Enzyme enhanced lactic acid fermentation of swine manure and apple waste: Insights from organic matter transformation and functional bacteria
文献类型： 外文期刊
作者： Lian, Tianjing 1 ; Zhang, Wanqin 3 ; Cao, Qitao 2 ; Yin, Fubin 2 ; Wang, Shunli 2 ; Zhou, Tanlong 2 ; Wei, Xiaoman 2 ; Zhang, Fangyu 2 ; Zhang, Zengqiang 1 ; Dong, Hongmin 2 ;
作者机构： 1.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Peoples R China
2.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China
3.China Huadian Engn Co Ltd, Beijing 100160, Peoples R China
关键词： Lactic acid; Anaerobic co -fermentation; Swine manure; Apple waste; Enzymatic pretreatment
期刊名称：JOURNAL OF ENVIRONMENTAL MANAGEMENT （ 影响因子：8.7； 五年影响因子：8.4 ）
ISSN： 0301-4797
年卷期： 2024 年 356 卷
页码：
收录情况： SCI
摘要： Anaerobic co -fermentation is a favorable way to convert agricultural waste, such as swine manure (SM) and apple waste (AW), into lactic acid (LA) through microbial action. However, the limited hydrolysis of organic matter remains a main challenge in the anaerobic co -fermentation process. Therefore, this work aims to deeply understand the impact of cellulase (C) and protease (P) ratios on LA production during the anaerobic cofermentation of SM with AW. Results showed that the combined use of cellulase and protease significantly improved the hydrolysis during the enzymatic pretreatment, thus enhancing the LA production in anaerobic acidification. The highest LA reached 41.02 +/- 2.09 g/L within 12 days at the ratio of C/P = 1:3, which was approximately 1.26 -fold of that in the control. After a C/P = 1:3 pretreatment, a significant SCOD release of 45.34 +/- 2.87 g/L was achieved, which was 1.13 times the amount in the control. Moreover, improved LA production was also attributed to the release of large amounts of soluble carbohydrates and proteins with enzymatic pretreated SM and AW. The bacterial community analysis revealed that the hydrolytic bacteria Romboutsia and Clostridium_sensu_stricto_1 were enriched after enzyme pretreatment, and Lactobacillus was the dominant bacteria for LA production. This study provides an eco-friendly technology to enhance hydrolysis by enzymatic pretreatment and improve LA production during anaerobic fermentation.
- 相关文献
作者其他论文 更多>>
-
Mitigating greenhouse gases and ammonia emission from the storage of digested pig slurry: Adaption of dissolved oxygen
作者：Cao, Tiantian;Zheng, Yunhao;Wang, Shunli;Zhu, Zhiping;Chen, Yongxing;Wang, Yue;Dong, Hongmin;Cao, Tiantian;Zheng, Yunhao;Wang, Shunli;Zhu, Zhiping;Chen, Yongxing;Wang, Yue;Dong, Hongmin;Zhang, Yu;Guo, Dongpo
关键词：Biogas digestate; Dissolved oxygen; GHG reduction; Ammonia reduction
-
Anaerobic co-biodegradation of polyhydroxyalkanoate and swine manure for volatile fatty acid production: The impact of C/N ratios and microbial dynamics
作者：Sun, Jiaxin;Zhou, Tanlong;Yin, Fubin;Wang, Shunli
关键词：Polyhydroxyalkanoate; Swine manure; Anaerobic digestion; Biodegradation; Volatile fatty acid
-
Fast prediction of odor concentration along pig manure chain based on machine learning: Monitoring 20 instead of over 100 odorous substances
作者：Cao, Tiantian;Zheng, Yunhao;Shang, Bin;Cong, Qunxin;Cao, Qitao;Dong, Hongmin;Cao, Tiantian;Zheng, Yunhao;Shang, Bin;Cong, Qunxin;Cao, Qitao;Dong, Hongmin
关键词：Pig manure; Odor concentration; Machine learning; Ammonia; Volatile organic compounds
-
Achieving overall low greenhouse gas and ammonia emissions from digested pig slurry during storage and after field application by maintaining a micro-oxygen level at the storage stage
作者：Wang, Yue;Xu, Huasheng;Wang, Youxu;Wang, Wenzan;Zhang, Haorui;Zhu, Zhiping;Dong, Hongmin;Wang, Xuexia
关键词：Manure management; Gaseous emissions; Reactive nitrogen gases; Micro-oxygen; Fertilization
-
Upcycling livestock processing waste to bioplastics for sustainable meat production systems: material quantification and environmental impact
作者：Jia, Cunling;Wang, Shunli;Wang, Lili
关键词：Slaughterhouse waste; Wastewater; Bioplastic; Biomethane; Environmental impact
-
Managing Ammonia for Multiple Benefits Based on Verified High-Resolution Emission Inventory in China
作者：Wang, Chen;Zhang, Xiuming;Xu, Jianming;Gu, Baojing;Wang, Chen;Zhang, Xiuming;Liu, Zehui;Zhang, Lin;Zhou, Feng;Adalibieke, Wulahati;Ti, Chaopu;Peng, Lingyun;Zhan, Xiaoying;Reis, Stefan;Reis, Stefan;Reis, Stefan;Liu, Hongbin;Zhu, Zhiping;Dong, Hongmin;Wang, Chen;Xu, Jianming;Gu, Baojing
关键词：ammonia emissions; cropland; nitrogen deposition; cost-benefitanalysis
-
Drivers of livestock manure nitrogen recycling on county scale in China
作者：Chen, Binhui;Gu, Baojing;Cheng, Luxi;Wang, Chen;Chen, Binhui;Gu, Baojing;Cheng, Luxi;Wang, Chen;Chen, Binhui;Cheng, Luxi;Wang, Chen;Zhang, Xiuming;Dong, Hongmin;Ros, Gerard H.;de Vries, Wim;Wang, Mengru
关键词：Manure recycling; Environmental degradation; Driving forces; Livestock farming types; Socioeconomic factors
