Department of Civil Engineering, Pulchowk Campus, Institute of Engineering, Tribhuvan University, Pulchowk, Lalitpur, Nepal.
School of Forestry and Environmental Studies, Yale University, 195 Prospect St, New Haven, CT 06511, USA.
Bioresour Technol. 2017 Dec;245(Pt A):1194-1205. doi: 10.1016/j.biortech.2017.08.182. Epub 2017 Sep 1.
The anaerobic digestion (AD) of agricultural biomass is an attractive second generation biofuel with potential environmental and economic benefits. Most agricultural biomass contains lignocellulose which requires pretreatment prior to AD. For optimization, the pretreatment methods need to be specific to the characteristics of the biomass feedstock. In this review, cereal residue, fruit and vegetable wastes, grasses and animal manure were selected as the agricultural biomass candidates, and the fundamentals and current state of various pretreatment methods used for AD of these feedstocks were investigated. Several nonconventional methods (electrical, ionic liquid-based chemicals, ruminant biological pretreatment) offer potential as targeted pretreatments of lignocellulosic biomass, but each comes with its own challenges. Pursuing an energy-intensive route, a combined bioethanol-biogas production could be a promising a second biofuel refinery option, further emphasizing the importance of pretreatment when lignocellulosic feedstock is used.
农业生物质的厌氧消化（AD）是一种很有吸引力的第二代生物燃料，具有潜在的环境和经济效益。大多数农业生物质都含有木质纤维素，在进行 AD 之前需要进行预处理。为了优化，预处理方法需要针对生物质原料的特点。在这篇综述中，选择了谷物残余物、水果和蔬菜废物、草和动物粪便作为农业生物质的候选物，并研究了用于这些原料 AD 的各种预处理方法的基本原理和现状。几种非传统方法（电、离子液体基化学品、反刍动物生物预处理）为木质纤维素生物质的靶向预处理提供了潜力，但每种方法都有其自身的挑战。采用能源密集型路线，结合生物乙醇-沼气生产可能是一种有前途的第二代生物燃料精炼厂选择，这进一步强调了在使用木质纤维素原料时预处理的重要性。
