期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 668, 期 -, 页码 893-902出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.scitotenv.2019.03.063
关键词
Anaerobic digestion; Pathogens; Biosludge; Biofertilizer; Wastewater treatment plant
资金
- Shandong Key Laboratory ofWater Pollution Control and Resource Reuse [2019KF08]
- National Natural Science Foundation of China Projects [51708338]
- Doctoral Research Fund of Shandong Jianzhu University [XNBS1702]
As World Health Organization advocates, the global burden of sanitation related disease and access to safely managed sanitation and safely treated wastewater should be monitored strictly. However, the spread of pathogens through various agricultural applications or direct discharge of sewage sludge generated in municipal wastewater treatment plants poses a serious challenge on the environment and public health. Anaerobic digestion (AD), the principal method of stabilizing biosolids, can efficiently and largely deactivate viable pathogens, including parasite, virus, and the pathogens harboring antibiotic resistance genes. This review aims to provide a critical overview regarding the deactivation of sludge-associated pathogens by AD, through which a serious concern on the effectiveness and rationality of AD towards sludge pathogens control was raised. Meanwhile, the underlying deactivation mechanisms and affecting factors were all discussed, with the focus on pathogen-associated modeling, engineering design and technological aspects of AD. Lastly, a matric method incorporating the operating strategy of AD with the risk assessment was proposed for evaluating the reliability of AD-based pathogen deactivation, while the research agenda forward was also outlined. (c) 2019 Elsevier B.V. All rights reserved.
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