Life Cycle Assessment of Integrated Nutrient, Energy, and Water Recovery on Large-Scale Dairy Farms
Life Cycle Assessment of Integrated Nutrient, Energy, and Water Recovery on Large-Scale Dairy Farms
复制标题
大型奶牛场养分、能量和水综合回收的生命周期评估
DOI：
10.1089/ees.2021.0376
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发表时间：
2022
影响因子：
1.8
通讯作者：
Hiibel, Sage R.
中科院分区：
文献类型：
--
作者：
Glover, Callan J.;Cornejo, Pablo K.;Hiibel, Sage R.
大型奶牛场的粪便管理通过温室气体排放和营养物污染给空气和水资源带来环境风险。目前的做法没有充分利用粪便中所含的有机物质和营养物质。本研究评估了新型营养、能源和水资源回收创新系统（NEWIR）的环境性能，该系统旨在通过减少环境影响和从粪便中回收有价值的资源来提高奶牛粪便管理的可持续性。NEWIR包括热液碳化（HTC）回收能量，藻类培养（营养物回收）和膜蒸馏（水回收）。利用生命周期评估方法比较了NEWIR系统与传统的奶牛粪便管理方法，并确定了资源回收的效益和意想不到的后果。结果表明，NEWIR极大地提高了养分管理性能，海洋和淡水富营养化潜力降低了0.148 kg n当量（eq）和0.168 kg p当量。每个功能单元，分别与传统做法相比。如果考虑到回收的能量和营养物质，NEWIR还能将全球变暖潜能值（GWP）降低15%。然而，与传统做法相比，NEWIR的用水量更高，主要是由于在HTC水产品中需要稀释水来支持藻类生长。在NEWIR中，对环境影响的主要贡献者是藻类的培养，主要是由于维持最大螺旋藻的高pH生长条件所需的缓冲化学品。不确定性分析表明，NEWIR的全球升温潜能值可能超过传统养殖场的潜能值，这凸显了减少藻类养殖对环境影响的必要性。虽然需要进一步的工作来优化藻类培养和降低全球升温潜能值，但NEWIR在改善营养管理和奶牛粪便能量回收方面显示出相当大的潜力。
Manure management at large-scale dairy farms poses environmental risks to air and water resources through greenhouse gas emissions and nutrient pollution. Current practices do not fully utilize the organic matter and nutrients contained in manure. This work evaluated the environmental performance of novel nutrients, energy, and water innovations for resource recovery (NEWIR) system intended to improve the sustainability of dairy manure management by reducing environmental impacts and recovering valuable resources from the manure. NEWIR consists of hydrothermal carbonization (HTC) for energy recovery, algae cultivation for nutrient recovery, and membrane distillation for water recovery. Life cycle assessment was used to compare the NEWIR system with conventional dairy manure management practices and to identify the benefits and unintended consequences of resource recovery. Results show vastly improved nutrient management performance by NEWIR, with marine and freshwater eutrophication potentials reduced 0.148 kg N-equivalent (eq.) and 0.168 kg P-eq. per functional unit, respectively, compared with conventional practices. NEWIR also reduces global warming potential (GWP) by 15% when recovered energy and nutrients are considered. However, NEWIR has higher water consumption than conventional practices, primarily due to the dilution water needed to support algae growth in HTC aqueous products. The dominant contributor to environmental impacts in NEWIR is algae cultivation, primarily due to buffering chemicals required to maintain high pH growth conditions forSpirulina maxima. Uncertainty analysis shows that NEWIR GWP may exceed that of the conventional farm, highlighting the need to reduce the environmental impacts of algae cultivation. Although additional work is needed to optimize algae cultivation and reduce GWP, NEWIR shows considerable potential to improve nutrient management and energy recovery from dairy manure.
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影响因子：
8.4
作者：
Saeed V. Qaramaleki;J. Villamil;Á. F. Mohedano;C. Coronella
通讯作者：
Saeed V. Qaramaleki;J. Villamil;Á. F. Mohedano;C. Coronella
影响因子：
2.8
作者：
N. A. Silva;S. Hiibel
通讯作者：
N. A. Silva;S. Hiibel
加州乳制品行业 50 年来每单位产量的温室气体、水和土地足迹。
影响因子：
3.5
作者：
A. Naranjo;A. Johnson;H. Rossow;E. Kebreab
通讯作者：
E. Kebreab
影响因子：
8.7
作者：
Marin-Batista, J. D.;Villamil, J. A.;de la Rubia, M. A.
通讯作者：
de la Rubia, M. A.
通过萃取和沉淀从化学生产的乳品污泥的水热碳化液中回收磷鸟粪石
影响因子：
7.7
作者：
C. Numviyimana;J. Warchoł;Nidal Khalaf;J. Leahy;K. Chojnacka
通讯作者：
K. Chojnacka