Exploiting the co-benefits of ecological sanitation
Exploiting the co-benefits of ecological sanitation
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DOI：
10.1016/j.cosust.2012.09.002
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发表时间：
2012-10
影响因子：
7.2
通讯作者：
G. Haq;H. Cambridge
中科院分区：
文献类型：
--
作者：
G. Haq;H. Cambridge
通过利用人类排泄物中养分回收的协同效益来闭合养分循环，有可能提高土壤肥力、粮食安全和减少用水量。本文回顾了利用人类排泄物作为农业资源的潜力。生态卫生（ecosan）的特点是“消毒和回收”过程，其基础是防止污染、消毒尿液和粪便以及回收食品生产中的营养物质。与使用山羊粪便相比，人类排泄物可以产生更高的卷心菜产量，而尿液受精的植物与矿物质受精的植物产生等量的番茄果实。然而，一个关键的挑战是如何在日益城市化和经济受限的世界中经济有效地扩大生态卫生。
Closing the nutrient loop by exploiting the co-benefits of nutrient recovery from human excreta has the potential to improve soil fertility, food security and reduce water use. This paper reviews the potential of using human excreta as an agricultural resource. Ecological sanitation (ecosan) is characterised by a ‘sanitise and recycle’ process based on preventing pollution, sanitising urine and faeces and recovering nutrients for food production. Human excreta can result in higher cabbage yields compared to the use of goat manure while urine-fertilised plants produce equal amounts of tomato fruits as mineral fertilised plants. However, a key challenge is how ecosan can be cost-effectively scaled-up in an increasingly urbanised and economic constrained world.