Baharlounezhad Fatemeh, Mohammadi Mohammad Ali
Faculty of Physics, University of Tabriz, Tabriz, Iran.
Research Institute of Applied Physics & Astronomy, University of Tabriz, Tabriz, Iran.
Sci Rep. 2024 Oct 5;14(1):23175. doi: 10.1038/s41598-024-75046-4.
In this study, experimental reactors for cathodic nitrogen plasma electrolysis were designed by the composition of galvanic (voltaic) and electrolytic cells with wide and narrow connectors filled with tap water and agar solutions. The designed reactor can be used to simultaneously perform and manage nitrification in acidic and alkaline environments. According to the reactor's performance, it can be installed on the irrigation system and used depending on the soil pH of the fields for delivering water and nitrogen species that are effective in growth. The nitrification process was investigated by choosing the optimal reactor with a wide connector based on different changes in oxidation-reduction potential and pH on the anode and cathode sides. The nitrite concentration changed directly with ammonium and nitrate concentrations on the cathode side. It changed inversely and directly with ammonium and nitrate concentrations on the anode side respectively. Nitrite concentration decreased from 5.387 ppm with water connector, to 0.326 ppm with 20% agar solution, and 0.314 ppm with 30% agar solution connectors on the anode side. It increased from 0 ppm to 0.191 ppm with a water connector, 0.405 ppm with 20% agar solution, and 7.454 ppm with 30% agar solution connectors on the cathode side.
在本研究中，通过将原电池（伏打电池）和电解池与填充有自来水和琼脂溶液的宽、窄连接器组合，设计了用于阴极氮等离子体电解的实验反应器。所设计的反应器可用于在酸性和碱性环境中同时进行和管理硝化作用。根据反应器的性能，可将其安装在灌溉系统上，并根据田间土壤pH值使用，以输送对作物生长有效的水和氮物质。通过基于阳极和阴极侧氧化还原电位和pH值的不同变化选择具有宽连接器的最佳反应器，对硝化过程进行了研究。阴极侧亚硝酸盐浓度与铵和硝酸盐浓度直接相关。阳极侧亚硝酸盐浓度分别与铵和硝酸盐浓度呈反比和正比关系。阳极侧亚硝酸盐浓度从使用水连接器时的5.387 ppm降至使用20%琼脂溶液连接器时的0.326 ppm，以及使用30%琼脂溶液连接器时的0.314 ppm。阴极侧亚硝酸盐浓度从使用水连接器时的0 ppm增加到0.191 ppm，使用20%琼脂溶液时为0.405 ppm，使用30%琼脂溶液连接器时为7.454 ppm。
