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首页> 外文期刊>Science of the total environment >Ammonia capture from human urine to harvest liquid N-P compound fertilizer by a submerged hollow fiber membrane contactor: Performance and fertilizer analysis
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Ammonia capture from human urine to harvest liquid N-P compound fertilizer by a submerged hollow fiber membrane contactor: Performance and fertilizer analysis

机译：通过浸没式中空纤维膜接触器从人尿中捕获从人尿中收获液态N-P复合肥：性能和肥料分析

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摘要

In this study, we developed a submerged hollow fiber membrane contactor (HFMC) to recover ammonia from human urine to get compound N-P fertilizers. The ammonia capture performance, water vapor transmembrane performance, ion rejection performance and the liquid fertilizer components using 1-4 mol/L H_3PO_4 as the stripping solution was comprehensively investigated. Increasing H_3PO_4 concentration did not significantly affect the ammonia capture performance but the water vapor transfer and fertilizer components. The ammonia mass transfer coefficients were in a range of 1.95×10~(-6)±4.77×10~(-8) to 2.28×10~(-6)±6.71 ×10~(-8) m/s and the ammonia flux fluctuated between 17.80 and 20.80 g/m~2 • h. The water vapor flux increased with the increase of stripping solution concentration and the time elapsed. The N content (21.29-55.24 g/L) was in the range of the commercial products while the P_2O_5 content (99.41-281 g/L) was slightly higher, which can be used in the soils or plants with a high demand for phosphorus. The liquid fertilizers were all mixtures of (NH_4)_2HPO_4 and NH_4H_2PO_4. but the distribution ratio slightly changed with the different initial H_3PO_4 concentration. The economic assessment showed that harvesting liquid N-P fertilizer from human urine using HFMC can make a profit of $7.089/L.
机译：在这项研究中，我们开发了一种浸没式中空纤维膜接触器（HFMC），以从人尿中回收氨以获得化合物N-P肥料。全面研究了氨捕获性能，水蒸气跨膜性能，水蒸气跨膜性能，离子抑制性能和液体肥料组分作为剥离溶液的剥离溶液。增加H_3PO_4浓度没有显着影响氨捕获性能，而是水蒸气转移和肥料组分。氨传质系数为1.95×10〜（-6）±4.77×10〜（-8）至2.28×10〜（-6）±6.71×10〜（-8）m / s和氨助焊剂波动波动在17.80和20.80g / m〜2•h之间。随着汽提溶液浓度的增加，水蒸气通量增加，并且经过的时间。 N含量（21.29-55.24 g / l）在商业产品的范围内，而P_2O_5含量（99.41-281g / L）略高，可用于土壤或植物，具有很高的磷。液体肥料是（NH_4）_2HPO_4和NH_4H_2PO_4的混合物。但分配比用不同的初始H_3PO_4浓度略有变化。经济评估表明，使用HFMC从人类尿液中收获液体N-P肥料可以获得7.089 / L的利润。

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  • 来源
    《Science of the total environment》 |2021年第10期|144478.1-144478.9|共9页
  • 作者

    Junhui Zhang; Mengfei Xie; Xin Tong; Dandan Yang; Su Liu; Dan Qu; Li Feng; Liqiu Zhang;

  • 作者单位

    Beijing Key Laboratory for Source Control Technology of Water Pollution Beijing Forestry University 35 Qinghua East Road Haidian District Beijing 100083 China College of Environmental Science and Engineering Beijing Forestry University 35 Qinghua East Road Haidian District Beijing 100083 China;

    Beijing Key Laboratory for Source Control Technology of Water Pollution Beijing Forestry University 35 Qinghua East Road Haidian District Beijing 100083 China College of Environmental Science and Engineering Beijing Forestry University 35 Qinghua East Road Haidian District Beijing 100083 China;

    Brook Byers Institute for Sustainable Systems Georgia Institute of Technology Atlanta GA 30308 United States;

    Beijing Key Laboratory for Source Control Technology of Water Pollution Beijing Forestry University 35 Qinghua East Road Haidian District Beijing 100083 China College of Environmental Science and Engineering Beijing Forestry University 35 Qinghua East Road Haidian District Beijing 100083 China;

    Brook Byers Institute for Sustainable Systems Georgia Institute of Technology Atlanta GA 30308 United States;

    Beijing Key Laboratory for Source Control Technology of Water Pollution Beijing Forestry University 35 Qinghua East Road Haidian District Beijing 100083 China College of Environmental Science and Engineering Beijing Forestry University 35 Qinghua East Road Haidian District Beijing 100083 China Brook Byers Institute for Sustainable Systems Georgia Institute of Technology Atlanta GA 30308 United States;

    Beijing Key Laboratory for Source Control Technology of Water Pollution Beijing Forestry University 35 Qinghua East Road Haidian District Beijing 100083 China College of Environmental Science and Engineering Beijing Forestry University 35 Qinghua East Road Haidian District Beijing 100083 China;

    Beijing Key Laboratory for Source Control Technology of Water Pollution Beijing Forestry University 35 Qinghua East Road Haidian District Beijing 100083 China College of Environmental Science and Engineering Beijing Forestry University 35 Qinghua East Road Haidian District Beijing 100083 China;

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  • 正文语种 eng
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  • 关键词

    Human urine; Submerged hollow fiber membrane contactor; Ammonia recovery; N-P compound fertilizer;

    机译：人类尿;浸没式中空纤维膜接触器;氨恢复;N-P复合肥料;

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