Current scenario and challenges in recycling of human urine generated at source in rail coaches as resource

IF 9.3 2区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Current Opinion in Green and Sustainable Chemistry Pub Date : 2023-10-01 DOI:10.1016/j.cogsc.2023.100854

Kashyap Kumar Dubey , Deepanshi Rajput , Anshu Baldia , Akshay Kumar , Vinod Kumar , Ankush Yadav , Shikha Rao , Yogendra Kumar Mishra

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引用次数: 2

Abstract

The current scenario of human urine being directly discharged into the environment without recycling, despite being an economical source of fertilizer. Train coaches are the major source of large-scale urine waste generation. Adopting a circular economy creates significant synergies toward usages of water generated after nutrient recovery from urine. Some advanced decentralized treatment systems, such as electrochemical, bioelectrical, or reverse osmosis, would be useful to treat and recover nutrients from urine waste/wastewater. The laborious and costly affair of removing nutrients like N, P, and K from human urine needed a sustainable solution. These recovered nutrients can be reused as fertilizers in irrigation and, indirectly, in large-scale biodiesel production by being used in microalgae cultivation. However, the potential of reusing human urine waste is yet to be explored commercially. Additionally, artificial intelligence may be explored with sustainable approaches for urine separation and recycling soon.

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铁路车厢内产生的人类尿液作为资源回收利用的现状和挑战

尽管人类尿液是一种经济的肥料来源，但目前的情况是，人类尿液被直接排放到环境中，没有得到回收利用。火车车厢是产生大量尿液废物的主要来源。采用循环经济可以在利用尿液营养物质回收后产生的水方面产生显著的协同效应。一些先进的分散处理系统，如电化学、生物电或反渗透，将有助于处理和回收尿液废物/废水中的营养物质。从人类尿液中去除氮、磷和钾等营养物质既费力又昂贵，需要一种可持续的解决方案。这些回收的营养物质可以作为灌溉肥料重新使用，也可以通过微藻培养间接用于大规模生物柴油生产。然而，再利用人类尿液废物的潜力尚未在商业上进行探索。此外，人工智能可能很快就会探索尿液分离和回收的可持续方法。

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来源期刊

Current Opinion in Green and Sustainable Chemistry Chemical Engineering-Catalysis

CiteScore

16.00

自引率

2.20%

发文量

140

审稿时长

103 days

期刊介绍： The Current Opinion journals address the challenge specialists face in keeping up with the expanding information in their fields. In Current Opinion in Green and Sustainable Chemistry, experts present views on recent advances in a clear and readable form. The journal also provides evaluations of the most noteworthy papers, annotated by experts, from the extensive pool of original publications in Green and Sustainable Chemistry.