Poultry litter (PL) has a high solid and organic nitrogen content that is converted into NH₃ during anaerobic digestion (AD), requiring the dilution of PL influent prior to AD. With nutrients extracted from the AD effluent, the water could be reused for influent dilution or for other purposes, while creating a designer nutrient product from the PL matrix. The study goal was to determine the effectiveness of an ammonia (NH₃)‐stripping and scrubbing system to remove and capture NH₃ from anaerobically digested PL. After NH₃ stripping, a novel, patent‐pending dual‐vessel NH₃‐scrubber system was designed to simultaneously capture the stripped NH₃ while producing higher quality biogas through partial removal of non‐combustible carbon dioxide (CO₂) and corrosive hydrogen sulfide (H₂S).

中文翻译：

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从厌氧消化的家禽垃圾中用沼气净化捕获氨气

家禽垃圾（PL）具有较高的固体和有机氮含量，在厌氧消化（AD）期间会转化为NH ₃，需要在AD之前稀释PL进水。从AD废水中提取养分后，可以将水再用于进水稀释或用于其他目的，同时从PL基质中产生设计出来的养分产品。该研究目标是确定氨（NH ₃）汽提和洗涤系统从厌氧消化的PL中去除和捕获NH ₃的有效性。NH ₃汽提后，设计了一种新颖的，正在申请专利的双容器NH ₃洗涤塔系统，以同时捕获汽提的NH ₃同时通过部分去除不可燃的二氧化碳（CO ₂）和腐蚀性的硫化氢（H ₂ S）来生产更高品质的沼气。