小球藻细胞对厌氧发酵沼液的净化效果研究

Study on Purification Effect of Chlorella vulgaris on Anaerobic Fermented Biogas Slurry

研究普通小球藻对养猪厂厌氧发酵沼液水质净化的效果,发现普通小球藻对发酵沼液中的总磷、亚硝态氮、氨氮和化学需氧量(COD)的最高去除率分别是82%、72%、85%和72%。结果表明,利用畜禽养殖厌氧发酵沼液培养藻类能够降低沼液中的氮磷元素含量并积累足够的有机质,是一种潜在的养猪场厌氧发酵沼液深度净化途径。

Microalgae Chlorella vulgaris is used to treat anaerobic biogas slurry from pig farm wastewater.The results show that the highest removal rates of total phosphorus,nitrite nitrogen,ammonia nitrogen and chemical oxygen demand(COD)in the biogas slurry are 82%,72%,85%and 72%.The results show that the use of anaerobic fermentation of livestock and poultry farms to cultivate microalgae can reduce the content of nitrogen and phosphorus in the biogas slurry and accumulate sufficient organic matter,which is a potential way for deep purification of anaerobic fermentation of biogas slurry in pig farms.