工业水处理 ›› 2025, Vol. 45 ›› Issue (8): 59-65. doi: 10.19965/j.cnki.iwt.2024-0641

• 试验研究 • 上一篇    下一篇

中心复合设计优化火龙珠生物炭制备条件用于处理重金属废水

宋晨浩(), 顾雯, 家安琪, 方应瞳, 刘娜, 李兴勇, 张伟(), 陈玉保()   

  1. 云南师范大学能源与环境科学学院,云南 昆明 650500
  • 收稿日期:2025-06-19 出版日期:2025-08-20 发布日期:2025-09-25
  • 通讯作者: 张伟, 陈玉保
  • 作者简介:

    宋晨浩(1999— ),硕士研究生,E-mail:

  • 基金资助:
    国家自然科学基金项目(21868014); 云南省教育委员会基金项目(2024J0138); 云南省环境科学学会科学研究项目(XHKYKT006); 云南省基础研究计划重点项目(220301AS070011); 云南省低碳发展引导项目(云财资环[2021]135号); 云南省科技人才与平台计划(2305AC160058); 云南省院士专家工作站项目(202205AF150024)

Optimization of conditions for the preparation of hypericum biochar by central composite design for the treatment of heavy metal wastewater

Chenhao SONG(), Wen GU, Anqi JIA, Yingtong FANG, Na LIU, Xingyong LI, Wei ZHANG(), Yubao CHEN()   

  1. School of Energy and Environmental Science, Yunnan Normal University, Kunming 650500, China
  • Received:2025-06-19 Online:2025-08-20 Published:2025-09-25
  • Contact: Wei ZHANG, Yubao CHEN

摘要:

火龙珠根茎作为一种农业废弃物,利用其制备生物炭并吸附重金属废水能够有效降低碳排放。通过响应面设计法的中心复合设计方案,以火龙珠根茎生物炭的热解温度、加热速率、热解时间为考察因素,Cr吸附率为响应指标,优化结果显示在热解温度为730.20 ℃,加热速率为17.56 ℃/min,热解时间为125.94 min的条件下制备的生物炭的Cr吸附率最高为86.07%。

关键词: 火龙珠, 生物炭, 响应面法, 铬废水, 吸附

Abstract:

As an agricultural waste,the preparation of hypericum rhizome as biochar and adsorption of heavy metal wastewater can effectively reduce carbon emissions. Through the central composite design of RSM method,the pyrolysis temperature,heating rate,and pyrolysis time were used as the influencing factors,and the Cr adsorption rate was used as the response index. The optimization results showed that the Cr adsorption rate of the biochar prepared under the conditions of pyrolysis temperatureof 730.20 ℃,heating rate of 17.56 ℃/min,and pyrolysis time of 125.94 min was the highest as 86.07%.

Key words: hypericum, biochar, response surface method, chromium wastewater, adsorption

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