Environmental Designer & Researcher
Wageningen
Anthroponix in collaboration with different WUR teams perform research on the implementation of source seperated human urine-based fertiliser. Nowadays, the most important agricultural fertiliser is animal manure. The production of artificial fertiliser has several negative impacts, such as a high energy demand and the depletion of the soil, phosphorus mines. Phosphorus is an essential nutrient for all living organisms, which means that the absence of this nutrient will result in a critical situation. Therefore, an alternative fertiliser is needed, leading to the topic of this research; fertiliser based on human urine.Humans produce about 1 to 1,5 litres of urine a day containing the nutrients nitrogen (N), phosphorus (P) and potassium (K), which are essential for plants to grow. The advantage of urine-based fertiliser is that it will contribute to closing the nutrient cycle in our society. The nutrients we consume, will end up being used as a fertiliser. This research investigates whether the human urine-based fertiliser may be a useful replacement for artificial fertiliser in the Dutch agriculture. First, we want to determine if and in what way we could treat human urine, preventing contamination by hormones, medicines and heavy metals. For producing human urine-based fertiliser, two methods are known. In order to find our preferred method, we will investigate both processes of lacto-fermented human urine and human urine-based struvite. Secondly, we consider it to be useful to compare the characteristics of urine-based fertiliser and artificial fertiliser on their nutrient content, risks and cost-effectiveness because we think this would provide a good overview whether it is interesting to implement fertiliser based on human urine in our agricultural system. https://www.wur.nl/nl/project/Menselijke-urine-als-meststof.htm