土木与环境工程学报（中英文）2026，Vol.48Issue(2)：1-7,7.DOI:10.11835/j.issn.2096-6717.2024.116
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
摘要
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,eco-logical and environmental considerations.However,the high turbidity of the self-extracted soybean urease solu-tion 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.Incorpo-rating 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 uni-formity of its biocementation,without an apparent effect on the morphology and crystallinity of the precipitated calcium carbonate crystals.关键词
脲酶诱导碳酸钙晶体沉积/豆酶液/明矾/浊度/脲酶活性/生物固化Key words
enzyme induced carbonate precipitation(EICP)/soybean urease solution/alum/turbidity/urease activity/biocementation分类
建筑与水利引用本文复制引用
赖汉江,罗开伟,崔明娟,刘惠,史佳璇,钟意平,林驰烽..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（中英文）,2026,48(2):1-7,7.基金项目
国家自然科学基金(42477160、52178319、52108307、51708243) （42477160、52178319、52108307、51708243）
福建省自然科学基金(2022J05020、2022J05127) National Natural Science Foundation of China(Nos.42477160,52178319,52108307,51708243) （2022J05020、2022J05127）
Natural Science Foundation of Fujian Province(Nos.2022J05020,2022J05127) （Nos.2022J05020,2022J05127）
