Anaerobic Membrane Bioreactors for Livestock Wastewater Treatment and Resource Recovery: Opportunities and Challenges

Research Advancements in Swine Wastewater Treatment and Resource-Based Safe Utilization Management Technology Model Construction

“…There are many types of pollutants in swine wastewater, such as suspended solids (SS), COD, biochemical oxygen demand (BOD), toxic metal elements, antibiotics, and pathogens. Generally, the concentrations of COD, TN, and TP in swine wastewater can be as high as 500-15,000, 100-2100, and 20-350 mg/L, respectively [17]. In addition, swine wastewater is an important source of antibiotic-resistant genes (ARGs), antibiotic-resistant bacteria, and virulence factor genes [18].…”

Low strength and COD/N wastewater treatment via controlled nitrification by a membrane aerated biofilm, partial denitrification by activated sludge, and anaerobic ammonia oxidation by granular sludge

“…Some types of wastewater are characterized by a low carbon-to-nitrogen ratio in terms of COD/N, generally less than 8, including high-strength wastewater (e.g., livestock wastewater, 1 landfill leachate, 2 and biogas liquid 3 ) and low-strength wastewater (e.g., aquaculture wastewater, 4 polluted surface water, 5 and municipal wastewater in Southern China 6 ). These wastewater types encounter the difficulty of nitrogen removal via conventional nitrification and denitrification mainly due to the deficiency of carbon sources for denitrification.…”

“…Some types of wastewater are characterized by a low carbon-to-nitrogen ratio in terms of COD/N, generally less than 8, including high-strength wastewater ( e.g. , livestock wastewater, 1 landfill leachate, 2 and biogas liquid 3 ) and low-strength wastewater ( e.g. , aquaculture wastewater, 4 polluted surface water, 5 and municipal wastewater in Southern China 6 ).…”