明矾含量对豆酶液及其生物固化效果的影响

赖汉江; 罗开伟; 崔明娟; 刘惠; 史佳璇; 钟意平; 林驰烽

doi:10.11835/j.issn.2096-6717.2024.116

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明矾含量对豆酶液及其生物固化效果的影响

土木工程 | 更新时间：2026-03-30

- 明矾含量对豆酶液及其生物固化效果的影响
- Effect of alum content on soybean urease solution and its biocementation
- 土木与环境工程学报 2026年48卷第2期页码：1-7
- 作者机构：
  
  1.福州大学，紫金地质与矿业学院，福州 350108
  2.福州大学，土木工程学院，福州 350108
  3.智能环境岩土工程福建省闽台科技合作基地，福州 350116
- 作者简介：
  
  赖汉江（1987- ），男，教授，博士生导师，主要从事生物岩土理论基础与技术研究，E-mail：laihj@fzu.edu.cn。
  崔明娟（通信作者），女，博士，副研究员，E-mail：cuimj@fzu.edu.cn。
- 基金信息：
  
  国家自然科学基金(42477160;52178319;52108307;51708243);福建省自然科学基金(2022J05020;2022J05127)
- DOI：10.11835/j.issn.2096-6717.2024.116
  中图分类号： TU472.99
- 收稿：2024-07-19，
  
  纸质出版：2026-04-25
- 稿件说明：
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赖汉江,罗开伟,崔明娟等.明矾含量对豆酶液及其生物固化效果的影响[J].土木与环境工程学报,2026,48(02):1-7.

LAI Hanjiang,LUO Kaiwei,CUI Mingjuan,et al.Effect of alum content on soybean urease solution and its biocementation[J].Journal of Civil and Environmental Engineering,2026,48(02):1-7.
赖汉江,罗开伟,崔明娟等.明矾含量对豆酶液及其生物固化效果的影响[J].土木与环境工程学报,2026,48(02):1-7. DOI： 10.11835/j.issn.2096-6717.2024.116.

LAI Hanjiang,LUO Kaiwei,CUI Mingjuan,et al.Effect of alum content on soybean urease solution and its biocementation[J].Journal of Civil and Environmental Engineering,2026,48(02):1-7. DOI： 10.11835/j.issn.2096-6717.2024.116.

摘要

基于自提取豆酶液诱导碳酸钙晶体沉积的岩土体改良技术具有经济、绿色、环境友好等诸多优点，但其较高的浊度易导致生物灌浆过程中发生生物堵塞现象，使得生物固化效果较差。采用含明矾的溶剂提取豆酶液

以降低其浊度；通过豆酶液提取试验、溶液试验、砂柱固化试验并结合宏微观测试，研究不同明矾含量对豆酶液浊度、脲酶活性及生物固化效果的影响。结果表明：添加适量的明矾（如100 g/L的豆粉添加3.0 g/L的明矾）能显著降低豆酶液的浊度，且不影响其脲酶活性，但过量的明矾会导致脲酶活性降低甚至丧失。降低豆酶液浊度有利于改善其生物固化的均匀性，但对所诱导沉积碳酸钙晶体的类型及结晶度并无明显影响。

Abstract

Enzyme induced carbonate precipitation (EICP) technique for soil improvement using self-extracted soybean urease solution to induce calcium carbonate precipitation has various advantages such as economic

ecological and environmental considerations. However

the high turbidity of the self-extracted soybean urease solution easily leads to bioclogging during the biogrouting process

resulting in poor biocementation. In this study

an alum-containing solvent was used for the extraction of soybean urease solution to reduce its turbidity. Incorporating soybean urease extraction

solution tests

and sand column solidification with macro- and micro-scale tests were carried out to investigate the effects of alum content on turbidity and biocementation of the extracted soybean urease solution. The results indicate that the addition of an appropriate amount of alum (e.g.

3.0 g/L for 100 g/L soybean powder content) can effectively reduce the turbidity of the self-extracted soybean urease solution without affecting its urease activity. However

excessive amount of alum may lead to a reduction or even loss of urease activity. The use of a low-turbidity soybean urease solution is beneficial in improving the uniformity of its biocementation

without an apparent effect on the morphology and crystallinity of the precipitated calcium carbonate crystals.

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Keywords

references

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