Anaerobic digestion of organic waste: Recovery of value-added and inhibitory compounds from liquid fraction of digestate
Anaerobic digestion of organic waste: Recovery of value-added and inhibitory compounds from liquid fraction of digestate
复制标题
有机废物的厌氧消化：从消化液的液体部分中回收增值和抑制化合物
DOI：
10.1016/j.biortech.2021.125196
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发表时间：
2021
影响因子：
11.4
通讯作者：
He Pinjing
中科院分区：
文献类型：
--
作者：
Lu Fan;Wang Zhijie;Zhang Hua;Shao Liming;He Pinjing
厌氧消化作为一种生态友好的垃圾处理技术，面临着稳定性差、产品价值低的问题。收获甲烷以外的增值产品并去除抑制性化合物将释放厌氧消化的新活力，这需要通过选择性分离某些化合物来实现。本文综述了目前从柠檬酸液相中分离有价值产物（挥发性脂肪酸、中链羧酸、乳酸）和抑制性物质（氨）的各种方法，包括其性能、适用性、局限性和改进方向。允许同时生产和提取的原位提取被认为是有前途的方法，其具有克服连续生产障碍的良好潜力。从原地开采和经济性两个方面分析了今后发展的前景和面临的挑战。
Anaerobic digestion, as an eco-friendly waste treatment technology, is facing the problem of low stability and low product value. Harvesting value-added products beyond methane and removing the inhibitory compounds will unleash new vitality of anaerobic digestion, which need to be achieved by selective separation of certain compounds. Various methods are reviewed in this study for separating valuable products (volatile fatty acids, medium-chain carboxylic acids, lactic acid) and inhibitory substance (ammonia) from the liquid fraction of digestate, including their performance, applicability, corresponding limitations and roadmaps for improvement. In-situ extraction that allows simultaneous production and extraction is seen as promising approach which carries good potential to overcome the barriers for continuous production. The prospects and challenges of the future development are further analyzed based on in-situ extraction and economics.