从血液透析废水中回收氮磷，用作农业肥料。
Nitrogen and phosphorus recovery from hemodialysis wastewater to use as an agricultural fertilizer.
机构信息
Center of Hemodialysis 2 Mars, Casablanca, Morocco.
Sustainability Engineer, Casablanca, Morocco.
出版信息
Nefrologia (Engl Ed). 2023 Dec;43 Suppl 2:32-37. doi: 10.1016/j.nefroe.2023.05.007. Epub 2024 Jan 19.
INTRODUCTION
Hemodialysis wastewater contains high concentrations of ammonia nitrogen and phosphorus. Recovery of these nutrients as soil fertilizers represents an interesting opportunity to ensure a sustainable fertilizer supply.
METHODS
In this paper, a simple method for recovering phosphorous and nitrogen as crystalline struvite [MgNHPO·6HO] is presented. An integrated cost model is also presented in order to create a positive business case.
RESULTS
Recovery rates in form of struvite of 95% of PO-P and 23% of NH-N were achieved with a profit.
CONCLUSION
To the best of our knowledge, this paper is the first to study the recovery of these naturally occurring minerals from hemodialysis wastewater. This offers great potential for the valorization of this type of wastewater.
简介
血液透析废水中含有高浓度的氨氮和磷。将这些营养物质回收作为土壤肥料代表了一个确保可持续肥料供应的有趣机会。
方法
本文提出了一种将磷和氮回收为结晶鸟粪石[MgNH4PO4·6H2O]的简单方法。还提出了一个综合成本模型，以创造一个有利可图的商业案例。
结果
以鸟粪石的形式实现了 95%的 PO-P 和 23%的 NH-N 的回收，且有盈利。
结论
据我们所知，本文首次研究了从血液透析废水中回收这些天然存在的矿物质。这为这种废水的增值提供了巨大的潜力。
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