生猪养殖废水资源化利用技术研究进展OA

The rapid development of large-scale swine farming has led to a sharp increase in concentrated discharge of aq-uaculture wastewater,which,if not properly managed and treated,exerts tremendous pressure on the surrounding ecological environment.As a type of high-strength organic wastewater,swine wastewater is rich in nutrients such as nitrogen and phos-phorus.Although conventional biological treatment technologies can partially purify such wastewater,they suffer from limi-tations including high operating costs and low efficiency in nitrogen and phosphorus removal,often resulting in effluent that still contains high concentrations of nutrients.Furthermore,discharging inadequately treated wastewater into natural water bodies not contributes to eutrophication but also leads to the loss of valuable nutrient resources.Therefore,developing cost-effective technologies for the treatment and resource recovery of swine wastewater has become a critical step in promoting the green development of the pig farming industry.This paper reviews recent research advances in the resource utilization of swine wastewater,summarizes various technological pathways for its recovery,and aims to provide technical references and innovative ideas for the effective utilization of aquaculture wastewater.