Evaluation on Stabilizers for Fluorine-contaminated Cultivated Land around the Sambo Pb-Zn Mine

Sejong Oh; In Hong Yeo; Ah Lim Jung; Jeong Wook Kim; Ji Cheol Kwon; Soon Won Jeon; Hyeong Min Park; Sang Hyung Park; Myung Chae Jung

doi:10.32390/ksmer.2023.60.6.469

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2023 Vol.60, Issue 6 Next Page

Research Paper

Evaluation on Stabilizers for Fluorine-contaminated Cultivated Land around the Sambo Pb-Zn Mine 삼보 연-아연 광산 주변 불소 오염 농경지 안정화 효율 연구

31 December 2023. pp. 469-479

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Abstract

This study evaluated the selection of stabilizers and appropriate mixing ratios in fluorine-contaminated cultivated land around the Sambo mine. To select stabilizers and mixing ratios, incubation experiments were performed using calcium phosphate, calcium hydroxide, steel slag, and calcium phosphate + steel slag. The column experiment was conducted with 3% calcium hydroxide, 1% calcium phosphate, 2% calcium phosphate, and 2% steel slag. Consequently, calcium hydroxide and calcium phosphate showed high concentrations initially and then tended to stabilize after 15 days. The calcium phosphate and steel slag mixture initially decreased rapidly and then maintained a constant concentration. Owing to the long-term nature of the experiment, which was conducted for 41 days, the overall stabilizer level between 15 and 20 days was lower than that without treatment.

Keywords

soil stabilization

fluoride-contamination

incubation experiment

column test

chemical extraction

이 연구는 폐광산 주변 불소 오염 농경지를 대상으로 안정화제 선정과 적절한 혼합비율을 평가하고자 하였다. 최적의 안정화제 및 혼합비율을 선정하기 위해 인산칼슘, 수산화칼슘, 제강슬래그 및 인산칼슘 + 제강슬래그를 이용하여 배양실험을 수행하였다. 배양실험 결과를 토대로 수산화칼슘 3%, 인산칼슘 1%, 인산칼슘 2%와 제강슬래그 2% 혼합으로 컬럼실험을 진행한 결과, 수산화칼슘 및 인산칼슘 안정화제의 경우 모두 초기에 높은 불소농도를 보이다가 15일 이후 안정화되는 경향을 보였으며, 인산칼슘과 제강슬래그 혼합제는 초기에 불소 농도가 급격히 감소한 후 일정한 농도를 유지하여 안정화가 이루어졌음을 확인하였다.

키워드

토양안정화

불소오염

배양실험

컬럼시험

화학적 용출법

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Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
Journal Title(Ko) :한국자원공학회지
Volume : 60
No :6
Pages :469-479
Received Date : 2023-12-08
Revised Date : 2023-12-22
Accepted Date : 2023-12-27
DOI :https://doi.org/10.32390/ksmer.2023.60.6.469

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

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