A Study on Enzyme-induced Carbonate Precipitation Technique for Soil Reinforcement without Releasing an Environmental Contaminant

Seung-Hyung Lee; Jong-Min Kim

doi:10.7843/kgs.2021.37.4.39

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2021 Vol.37, Issue 4 Preview Page

Research Article

A Study on Enzyme-induced Carbonate Precipitation Technique for Soil Reinforcement without Releasing an Environmental Contaminant 환경 유해 부산물 누출이 없는 지반 보강용 효소 기반 탄산칼슘 침전 기법 연구

30 April 2021. pp. 39-47

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Abstract

Recently, the enzyme-induced carbonate precipitation (EICP) technique has been considered as one of the alternatives to the cement-based soil reinforcing method. However, the problem with the emission of ammonium ion has not been solved. In this study, an experimental study on the EICP without releasing an environmental contaminant (Ze-EICP) is performed using calcium-exchanged zeolite. The results show that the Ze-EICP using calcium-exchanged zeolite reduced the amount of ammonium ions by 96.96% and precipitated almost the same amount of calcium carbonate, compared to the EICP using calcium chloride. In addition, the Ze-EICP shows higher strength improvement rate than the EICP due to densification of zeolite and cementation of calcium carbonate.

Keywords

Soil reinforcement

Cementation

Calcium carbonate

Cation exchange

Zeolite

최근 효소 기반 탄산칼슘 침전(EICP) 기법은 시멘트 기반 지반보강공법의 대안 중 하나로 간주되어 왔다. 하지만 EICP 기법에서 발생하는 환경 유해 부산물인 암모늄 이온의 배출에 대한 문제는 해결되지 않고 있다. 따라서 본 연구에서는 칼슘 치환 제올라이트를 사용하여 환경 유해 부산물이 없는 EICP(Ze-EICP)의 실험적 연구를 수행하고자 한다. 실험결과는 칼슘 치환 제올라이트를 사용하는 Ze-EICP가 염화칼슘을 사용하는 EICP와 비교하여 암모늄 이온은 96.96%가 제거되었으며, 거의 동일한 양의 탄산칼슘이 침전되었음을 보여주었다. 또한 Ze-EICP는 제올라이트의 조밀화와 탄산칼슘의 고결화로 인해 EICP 대비 높은 강도증진 효과를 보여주었다.

References

Almajed, A., Tirkolaei, H.K., and Kavazanjian Jr., E. (2018), Baseline Investigation on Enzyme-induced Calcium Carbonate Precipitation, Journal of Geotechnical and Geoenvironmental Engineering, Vol.144, No.11, pp.04018081. 10.1061/(ASCE)GT.1943-5606.0001973

ASTM D2166 (2005), Standard Test Method for Unconfined Compressive Strength of Cohesive Soils, ASTM D2166, ASTM International, West Conshohocken, PA, USA.

ASTM D2487 (2000), Standard Practice for Classification of Soils for Engineering Purposes (unified soil classification system), ASTM D2487, ASTM International, West Conshohocken, PA, USA.

Ji, Z. Y., Yuan, J. S., and Li, X. G. (2007), Removal of Ammonium from Wastewater Using Calcium form Clinoptilolite, Journal of Hazardous Materials, Vol.141, No.3, pp.483-488. 10.1016/j.jhazmat.2006.07.01017007999

Jorgensen, T.C. and Weatherley, L.R. (2003), Ammonia Removal from Wastewater by Ion Exchange in the Presence of Organic Contaminants, Water Research, Vol.37, No.8, pp.1723-1728. 10.1016/S0043-1354(02)00571-7

Kavazanjian, E. and Hamdan, N. (2015), Enzyme Induced Carbonate Precipitation (EICP) Columns for Ground Improvement, In: IFCEE 2015, American Society of Civil Engineers, Reston, VA, USA, pp.2252-2261. 10.1061/9780784479087.209

Khodadadi, H.T., Kavazanjian, E., van Paassen, L., and Dejong, J. (2017), Bio-grout Materials: A Review, Grouting 2017, July, Honolulu, HI, USA, pp.9-12.

Lee, S. and Kim, J. (2020), An Experimental Study on Enzymatic-induced Carbonate Precipitation Using Yellow Soybeans for Soil Stabilization, KSCE Journal of Civil Engineering, Vol.24, No.7, pp.2026-2037. 10.1007/s12205-020-1659-9

Namati, M. and Voordouw, G. (2003), Modification of Porous Media Permeability, Using Calcium Carbonate Produced Enzymatically in situ, Enzyme and Microbial Technology, Vol.33, pp.635-642. 10.1016/S0141-0229(03)00191-1

Neupane, D., Yasuhara, H., Kinoshita, N., and Unno, T. (2013), Applicability of Enzymatic Calcium Carbonate Precipitation as a Soil-strengthening Technique, Journal of Geotechnical and Geoenvironmental Engineering, Vol.139, No.12, pp.2201-2211. 10.1061/(ASCE)GT.1943-5606.0000959

Neupane, D., Yasuhara, H., Kinoshita, N., and Ando, Y. (2015a), Distribution of Mineralized Carbonate and its Quantification Method in Enzyme Mediated Calcite Precipitation Technique, Soils and Foundations, Vol.55, No.2, pp.447-457. 10.1016/j.sandf.2015.02.018

Neupane, D., Yasuhara, H., Kinoshita, N., and Putra, H. (2015b), Distribution of Grout Material Within 1-m Sand Column in in Situ Calcite Precipitation Technique, Soils and Foundations, Vol.55, No.6, pp.1512-1518. 10.1016/j.sandf.2015.10.015

Oliveira, P.J.V., Freitas, L.D., and Carmona, J.P. (2016), Effect of Soil Type on the Enzymatic Calcium Carbonate Precipitation Process Used for Soil Improvement, Journal of Materials in Civil Engineering, Vol.29, No.4, pp.04016263. 10.1061/(ASCE)MT.1943-5533.0001804

Park, S.S., Choi, S.G., and Nam, I.H. (2012), Development of Soil Binder Using Plant Extracts, Journal of the Korean Geotechnical Society, Vol.28, No.3, pp.67-75. 10.7843/kgs.2012.28.3.67

Phua, Y.J. and Røyne, A. (2018), Bio-cementation through Controlled Dissolution and Recrystallization of Calcium Carbonate, Construction and Building Materials, Elsevier Ltd., Vol.167, pp.657-668. 10.1016/j.conbuildmat.2018.02.059

Song, J.Y., Ha, S.J., Jang, J.W., and Yun, T.S. (2020), Analysis of Improved Shear Stiffness and Strength for Sandy Soils Treated by EICP, Journal of the Korean Geotechnical Society, Vol.31, No.1, pp.17-28.

Yasuhara, H., Neupane, D., Hayashi, K., and Okamura, M. (2012), Experiments and Predictions of Physical Properties of Sand Cemented by Enzymatically-induced Carbonate Precipitation, Soils and Foundations, Vol.52, No.3, pp.539-549. 10.1016/j.sandf.2012.05.011

Zhao, Y.P., Gao, T.Y., Jiang, S.Y., and Cao, D.W. (2004), Ammonium Removal by Modified Zeolite from Municipal Wastewater, Journal of Environmental Sciences, Vol.16, No.6, pp.1001-1004.

Information

Publisher :The Korean Geotechnical Society
Publisher(Ko) :한국지반공학회
Journal Title :Journal of the Korean Geotechnical Society
Journal Title(Ko) :한국지반공학회 논문집
Volume : 37
No :4
Pages :39-47
Received Date : 2021-04-09
Revised Date : 2021-04-15
Accepted Date : 2021-04-16
DOI :https://doi.org/10.7843/kgs.2021.37.4.39

Journal of the Korean Geotechnical Society ISSN:1229-2427(Print) 2288-646X(Online) 한국지반공학회 논문집

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