与物理混合法相比，利用鸡毛就地生产富含氨基酸的磷酸一铵具有更高的功效。

IF 7.1 2区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Waste management Pub Date : 2024-10-03 DOI:10.1016/j.wasman.2024.09.030

Fuduo He, Yi Tan, Xiaohou Zhou, Tao Luo, Zhenjuan Yan, Dehua Xu, Xinlong Wang

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引用次数: 0

摘要

每年都有大量的羽毛废弃物被丢弃，导致严重的环境污染问题。同时，为了提高磷肥的利用效率，本研究利用湿法磷酸（WPPA）对羽毛进行原位水解，生产出氨基酸磷酸铵（AAMAP），并设置物理混合磷酸铵（ARMAP）作为对照。研究了在不同条件下产生的 AAMAP 和 ARMAP 对大白菜生长的影响。结果表明，AAMAP的增产效果始终优于ARMAP，鲜重和干重分别增加了1.38%至26.06%和5.69%至20.67%。在所有处理中，AAMAP（150 克/升-3）组最有效，与空白对照组相比，鲜重和干重分别增加了 37.13 % 和 46.13 %。分析表明，AAMAP 的优异施用效果是由于氨基酸螯合作用消除了不溶于水的 NH4MgPO4-H2O 结晶，从而提高了磷和镁的利用率，并形成了磷酯。此外，经济分析表明，AAMAP 的添加成本仅为 ARMAP 的 28.52%。这种利用 WPPA 就地水解羽毛以生产 AAMAP 的方法是处理羽毛废弃物和提高磷肥利用效率的一种经济有效的方法。

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In-situ production of amino acid-rich monoammonium phosphate from chicken feathers provides superior efficacy compared to physical blending

A large amount of feather waste is discarded annually, leading to severe environmental pollution problems. Meanwhile, to improve the utilization efficiency of phosphate fertilizers, this study utilized wet-process phosphoric acid (WPPA) to hydrolyze feathers in-situ, producing ammonium amino acid phosphate (AAMAP), and set up physically mixed ammonium phosphate (ARMAP) as a control. The application effects of AAMAP and ARMAP produced under different conditions on bok choy growth were investigated. The results showed that AAMAP consistently outperformed ARMAP in promoting yield, with fresh weight and dry weight increases ranging from 1.38 % to 26.06 % and 5.69 % to 20.67 %, respectively. Among all treatments, the AAMAP (150 g/L-3) group was the most effective, increasing fresh weight and dry weight by 37.13 % and 46.13 % compared to the blank control group. Analysis revealed that the superior application effect of AAMAP was attributed to the elimination of the water-insoluble NH₄MgPO₄·H₂O crystals due to amino acid chelation, leading to improved phosphorus and magnesium utilization, as well as the formation of phosphoesters. Furthermore, economic analysis showed that the addition cost of AAMAP was only 28.52 % of ARMAP. This method of utilizing WPPA to hydrolyze feathers in-situ for AAMAP production is an economical and effective approach to treat feather waste and enhance the utilization efficiency of phosphate fertilizers.

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来源期刊

Waste management 环境科学-工程：环境

CiteScore

15.60

自引率

6.20%

发文量

492

审稿时长

39 days

期刊介绍： Waste Management is devoted to the presentation and discussion of information on solid wastes,it covers the entire lifecycle of solid. wastes. Scope: Addresses solid wastes in both industrialized and economically developing countries Covers various types of solid wastes, including: Municipal (e.g., residential, institutional, commercial, light industrial) Agricultural Special (e.g., C and D, healthcare, household hazardous wastes, sewage sludge)