The Microbial Electrochemical Current Accelerates Urea Hydrolysis for Recovery of Nutrients from Source-Separated Urine
The Microbial Electrochemical Current Accelerates Urea Hydrolysis for Recovery of Nutrients from Source-Separated Urine
复制标题
微生物电化学电流加速尿素水解，从源头分离的尿液中回收营养物质
DOI：
10.1021/acs.estlett.7b00168
复制
发表时间：
2017-07-01
影响因子：
10.9
通讯作者：
Ren, Zhiyong Jason
中科院分区：
文献类型：
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作者：
Chen, Xi;Gao, Yifan;Ren, Zhiyong Jason
这项研究表明，废水驱动的微生物电化学过程极大地促进了传统的限速尿素水解，并有效地从源头分离的尿液中回收铵和磷酸盐营养物质。使用合成的和稀释的实际尿液和废水，76-87%的氮和72-93%的磷被连续地从源分离的尿液中去除，并收集在回收溶液中。水解和营养物回收的加速是由废水处理过程中产生的电势驱动的。有效的营养物回收归因于由连续的铵迁移和去除引起的水解速率的增加，这加剧了与尿液利用相关的储存、健康和操作问题。进一步研究电化学条件下微污染物的去除行为。
This study demonstrates that a wastewater-driven microbial electrochemical process greatly facilitates traditional rate-limiting urea hydrolysis and efficiently recovers ammonium and phosphate nutrients from source-separated urine. Using both synthetic and diluted actual urine and wastewater, 76–87% of nitrogen and 72–93% of phosphorus were continuously removed from source-separated urine and collected in recovery solutions. The acceleration of hydrolysis and nutrient recovery were driven by the electrical potential generated during wastewater treatment. The efficient nutrient recovery is attributed to the increase in the rate of hydrolysis induced by continuous ammonium migration and removal, which alleviates storage, health, and operational issues associated with the utilization of urine. Further investigations of removal behaviors of micropollutants under electrochemical conditions will be performed.