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中国农学通报 ›› 2025, Vol. 41 ›› Issue (16): 82-89.doi: 10.11924/j.issn.1000-6850.casb2024-0774

• 资源·环境·生态·土壤·气象 • 上一篇    下一篇

响应面法优化生姜秸秆改性生物炭对氨氮吸附性能的研究

黄雅淇1(), 李祥平2, 丁渝2, 傅欣怡2, 廖钦洪2,3(), 张文林2,3   

  1. 1 重庆三峡学院生物与食品工程学院,重庆 404020
    2 重庆文理学院智慧农业学院,重庆 402160
    3 园艺植物重庆高校工程研究中心,重庆 402160
  • 收稿日期:2024-12-11 修回日期:2025-04-10 出版日期:2025-06-05 发布日期:2025-06-05
  • 通讯作者:
    廖钦洪,男,1979年出生,重庆永川人,教授,博士,主要从事农业废弃物资源化处理技术研究。通信地址:402160 重庆文理学院(星湖校区),Tel:023-49682201,E-mail:
  • 作者简介:

    黄雅淇,女,2001年出生,湖南常德人,硕士研究生,研究方向:农业资源利用。通信地址:402160 重庆文理学院(星湖校区),Tel:023-49682201,E-mail:

  • 基金资助:
    重庆市自然科学基金项目“重庆主栽生姜品种酚类物质鉴定及抗氧化活性研究”(CSTB2024NSCQ-MSX1070)

Optimization of Ammonia Nitrogen Adsorption Performance of Ginger Straw Modified Biochar by Response Surface Method

HUANG Yaqi1(), LI Xiangping2, DING Yu2, FU Xinyi2, LIAO Qinhong2,3(), ZHANG Wenlin2,3   

  1. 1 College of Biological and Food Engineering, Chongqing Three Gorges University, Chongqing 404020
    2 College of Smart Agriculture, Chongqing University of Arts and Sciences, Chongqing 402160
    3 Chongqing University Horticultural Plants Engineering Research Center, Chongqing 402160
  • Received:2024-12-11 Revised:2025-04-10 Published:2025-06-05 Online:2025-06-05

摘要:

探究响应面法优化生姜秸秆改性生物炭吸附氨氮的最佳工艺条件,为处理农业氮污染问题提供一种新型材料。在管式炉中通过限氧裂解制备出生姜秸秆改性生物炭,以NH4Cl溶液模拟土壤中的氨氮开展吸附实验,评估改性生物炭对氨氮的吸附性能,以炭化温度、炭化时间、磷酸溶液的浓度和液固比为影响因素开展单因素实验,在此基础上进行响应面实验。最终确立最佳工艺条件为炭化温度615℃,炭化时间1.5 h,磷酸浓度25%,液固比15 mL/g。在此条件下,改性生物炭对氨氮的吸附值与模型预测值十分接近。本研究应用响应面法优化了生物炭的改性技术,可为实际农业中的氮污染治理提供新的解决方案。

关键词: 改性生物炭, 响应面法, 工艺优化, 农业氮污染, 生姜秸秆

Abstract:

The study aimed to optimize the preparation process of ginger straw modified biochar through the response surface method to enhance its adsorption performance of ammonia nitrogen, so as to provide a new material for solving the problem of agricultural nitrogen pollution. The adsorption performance of modified biochar on ammonia nitrogen was evaluated by adsorption experiments. Initially, single-factor experiments were conducted with factors such as carbonization temperature, carbonization time, concentration of phosphoric acid solution and liquid-solid ratio, and then response surface experiments were performed based on above findings. The results indicated that the optimal process condition was as followed: carbonization temperature of 615℃, carbonization time of 1.5 h, phosphoric acid concentration of 25%, liquid-solid ratio of 15 mL/g. Under this condition, the adsorption value of modified biochar to ammonia nitrogen was very close to the predicted value. This study effectively applied the response surface method to optimize the modification technology of biochar, and provided a new solution for managing nitrogen pollution in practical agricultural practices.

Key words: modified biochar, response surface method, process optimization, agricultural nitrogen pollution, ginger straw