Nitrogen is one of the essential nutrients for plants. Even though its availability in the air is abundant, it cannot be utilized yet due to its structure. Plasma electrolysis by air injection is effectively degrade organic textile dyes waste. In this study we propose a novel air plasma electrolysis (APE) where direct air injection into plasma zone inside electrolysis plasma can converts air into nitrate, while simultaneously the degradation of dyes waste produces organic nitrogen. Degradation of organic textile dye by APE can also transform nitrogen-rich organic wastewater into nitrogen fertilizers. In this experiment, Remazol red as a compound in the azo dye group was used as a model for organic textile dye wastewater. Air plasma electrolysis reactor equipped with a stainless-steel cathode, a tungsten anode, with various air injection rates and electric power. The results show 99.82% Remazol red degradation and 41.41 mmol of nitrate production. Preliminary efficacy tests on tomato plants showed that the nitrogen fertilizers produced from Remazol red produce the best plant growth. This study shows that APE simultaneously reduces organic textile dye waste, transforms them into potential organic fertilizer, and at the same time, synthesizes nitrates.

中文翻译：

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一种在等离子体区直接注入空气的新型空气等离子体电解法在降解有机纺织染料中产生硝酸盐

氮是植物必需的营养元素之一。尽管它在空气中的可用性很丰富，但由于它的结构，它还不能被利用。空气喷射等离子电解可有效降解有机纺织染料废物。在这项研究中，我们提出了一种新型的空气等离子体电解 (APE)，其中直接将空气注入电解等离子体内的等离子体区可以将空气转化为硝酸盐，同时染料废物的降解产生有机氮。APE降解有机纺织染料也可以将富氮有机废水转化为氮肥。在本实验中，以偶氮染料组中的化合物瑞马唑红作为有机纺织染料废水的模型。空气等离子电解反应器配备不锈钢阴极、钨阳极、具有各种空气喷射率和电力。结果表明，瑞马唑红降解率为 99.82%，硝酸盐产量为 41.41 mmol。对番茄植株的初步药效试验表明，由 Remazol red 生产的氮肥使植株生长最好。这项研究表明，APE 同时减少有机纺织染料废物，将它们转化为潜在的有机肥料，同时合成硝酸盐。