猪场沼液微藻净化前的营养优化

Pre-optimization of nutrients in piggery biogas slurry purified by microalgae

微藻净化猪场沼液是一种环保的、低成本的、前景广阔的资源再利用方式。通过对沼液的营养优化来提高微藻的净化效率,包括氨氮浓度的控制,碳氮比、氮磷比的合理调配,以及过量重金属、抗生素胁迫作用的消除。这些优化将为微藻净化沼液产业化发展打下基础。

Piggery biogas slurry purification by microalgae is an environment-friendly, low-cost and promising resource reuse mode. The purification efficiency of microalgae was improved by the nutrition optimization of the biogas slurry, including the control of ammonia nitrogen concentration, proper adjustment of C/N,N/P and the elimination of stress effects from excessive heavy metals and antibiotics. These optimization will lay a foundation for industrial development of microalgae purification of biogas slurry.