| Title | Recent advances in swine wastewater treatment technologies for resource recovery: A comprehensive review |
|---|---|
| ID_Doc | 8973 |
| Authors | Zhou, LL; Liang, M; Zhang, DQ; Niu, XJ; Li, K; Lin, ZT; Luo, XJ; Huang, YY |
| Title | Recent advances in swine wastewater treatment technologies for resource recovery: A comprehensive review |
| Year | 2024 |
| Published | |
| Abstract | Swine wastewater (SW), characterized by highly complex organic and nutrient substances, poses serious impacts on aquatic environment and public health. Furthermore, SW harbors valuable resources that possess substantial economic potential. As such, SW treatment technologies place increased emphasis on resource recycling, while progressively advancing towards energy saving, sustainability, and circular economy principles. This review comprehensively encapsulates the state -of -the -art knowledge for treating SW, including conventional (i.e., constructed wetlands, air stripping and aerobic system) and resource-utilization-based (i.e., anaerobic digestion, membrane separation, anaerobic ammonium oxidation, microbial fuel cells, and microalgal-based system) technologies. Furthermore, this research also elaborates the key factors influencing the SW treatment performance, such as pH, temperature, dissolved oxygen, hydraulic retention time and organic loading rate. The potentials for reutilizing energy, biomass and digestate produced during the SW treatment processes are also summarized. Moreover, the obstacles associated with full-scale implementation, long-term treatment, energyefficient design, and nutrient recovery of various resource -utilization -based SW treatment technologies are emphasized. In addition, future research prospective, such as prioritization of process optimization, in-depth exploration of microbial mechanisms, enhancement of energy conversion efficiency, and integration of diverse technologies, are highlighted to expand engineering applications and establish a sustainable SW treatment system. |
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