河道底泥和植物制备生物炭吸附磷的影响研究

熊涛; 李萍; 尹茜; 刘宇鑫; 陈师楚

doi:10.12052/gdutxb.220032

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河道底泥和植物制备生物炭吸附磷的影响研究

更新时间：2026-05-27

- 河道底泥和植物制备生物炭吸附磷的影响研究
- Effect of Biochar From Sediment and Plants on Phosphorus Adsorption
- 广东工业大学学报 2023年40卷第3期页码：83-90
- 作者机构：
  
  1. 广东工业大学环境科学与工程学院,广东,广州,510006
  2. 佛山市弘峻水处理设备有限公司,广东,佛山,528251
- 作者简介：
  
  熊涛(1996–)，男，硕士研究生，主要研究方向为水污染控制
  李萍(1971–)，男，教授，博士，主要研究方向为水污染控制，E-mail：lipinggd@163.com
- 基金信息：
  
  广东省企业科技特派员项目(GDKTP2020028400)
- DOI：10.12052/gdutxb.220032
  中图分类号： X52
- 网络首发：2023-05-25，
  
  纸质出版：2023
- 稿件说明：
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熊涛, 李萍, 尹茜, 刘宇鑫, 陈师楚. 河道底泥和植物制备生物炭吸附磷的影响研究[J]. 广东工业大学学报, 2023, 40(3): 83-90.

Xiong Tao, Li Ping, Yin Qian, et al. Effect of Biochar From Sediment and Plants on Phosphorus Adsorption[J]. 2023, 40(3): 83-90.
熊涛, 李萍, 尹茜, 刘宇鑫, 陈师楚. 河道底泥和植物制备生物炭吸附磷的影响研究[J]. 广东工业大学学报, 2023, 40(3): 83-90. DOI： 10.12052/gdutxb.220032.

Xiong Tao, Li Ping, Yin Qian, et al. Effect of Biochar From Sediment and Plants on Phosphorus Adsorption[J]. 2023, 40(3): 83-90. DOI： 10.12052/gdutxb.220032.

摘要

为探究富营养化水体联合修复技术，协同解决河道底泥污染、植物垃圾和水体中磷过量的问题，采用河道底泥和植物垃圾共热解制备改性生物炭吸附水体中的磷，研究生物炭原料配比、热解时间和温度、改性剂及其配比等制备条件对生物炭吸附磷的影响，探究溶液pH和共存离子等条件对Fe改性生物炭吸附磷的影响。结果表明：Fe改性生物炭20:10:3-ZNBC450-3Fe对低质量浓度磷(1 mg/L)吸附量为2.76 mg/g，去除率为68.96%。中性条件下Fe改性生物炭吸附磷的效果较好，Na

、K

和Cl

−

对生物炭吸附磷有明显的促进作用，Al

、CO

2−

和SO

2−

却有明显的抑制作用。Fe改性生物炭吸附磷符合准二级动力学和Freundlich吸附等温线模型。SEM-EDS检测证明了Fe改性生物炭吸附磷的有效性。河道底泥和植物垃圾共热解制备生物炭吸附水体磷，是一种联合物理、化学和生物手段全面修复景观水生态系统的技术，具有良好的应用前景。

Abstract

In order to explore the joint remediation technology of eutrophic water bodies and jointly solve the problems of sediment pollution

plant waste and excessive phosphorus in water bodies

preparation of modified biochar by co-pyrolysis of sediment and plant waste to adsorb phosphorus in water was studied. The effects of preparation conditions such as the ratio of biochar raw material

pyrolysis time and temperature

modifier and its ratio on the adsorption of phosphorus were studied. The effects of pH and co-existing ions on the adsorption of phosphorus by Fe modified biochar were investigated. The results show that the adsorption cap

acity of Fe modified biochar 20:10:3-ZnBC450-3Fe on low concentration phosphorus (1 mg/L) was 2.76 mg/g

and the removal rate was 68.96%. Under neutral conditions

Fe modified biochar adsorbed phosphorus well. Na

and Cl

−

promoted the adsorption of phosphorus

but Al

$\mathrm{CO}_3^{2-} $

img text_id='Z-20230506163816' class='formula-img' style='display:none;' src='gdgydxxb-40-3-83_Z-20230506163816.jpg'>

and

$\mathrm{SO}_4^{2-} $

img text_id='Z-20230506163826' class='formula-img' style='display:none;' src='gdgydxxb-40-3-83_Z-20230506163826.jpg'>

inhibited the adsorption of phosphorus. The adsorption of phosphorus by Fe modified biochar conformed to the quasi-second-order kinetics and Freundlich adsorption isotherm model. SEM-EDS test proves the effectiveness of phosphorus adsorption by iron-modified biochar. The preparation of biochar by co-pyrolysis of sediment and plant waste to adsorb phosphorus in water is a comprehensive restoration technology combining physical

chemical and biological means for river and lake garden ecosystem

which has good application prospect.

关键词

Keywords

references

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