The Development of Automatic Monitoring Instrument for the Measurement of Heavy Metals in Soil Moisture

doi:10.12972/ksmer.2014.51.4.583

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2014 Vol.51, Issue 4 Preview Page Next Page

Technical Report

The Development of Automatic Monitoring Instrument for the Measurement of Heavy Metals in Soil Moisture 토양수 중 중금속 측정을 위한 자동 계측기 개발: 황인호, 박미정, 박관인, 김윤수, 이진수, 김중열
Inho Hwang, Mijeong Park, Gwanin Bak, Yoonsu Kim, Jinsoo Lee, Jungyul Kim

31 August 2014. pp. 583-596

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Abstract

Using the automatic sampling and fluidic system, soil moisture is sampled, is injected into measurement container and is discharged. One of the methods for on-site analysis of heavy metals(Cd, Pb, Cu and Zn), which is related to the mine activity is anodic stripping voltammetry(ASV) which needs a potentiostat and a software. The purpose of this study is to develop a potentiostat and a software suitable for automatic measurement for heavy metals. As a result of conducting cyclic voltammetry using K3Fe(CN)6 to prove the performance of a home-made potentiostat, the relationship between concentrations and peak currents is indicating the reasonable performance with linear relationship. The automatic monitoring system was produced to control all system using embedded computers, and in addition to the measurement of heavy metals, pH, EC and temperature in soil moisture was measured simultaneously. Also, this system enabled to remote monitoring for soil moisture using CDMA network.

Keywords

Automatic sampling and fluidic system

On-site analysis of heavy metals

Anodic stripping voltammetry

Potentiostat

Automatic monitoring system

토양수 채취 및 유동시스템을 이용하여 토양수를 채취하고 측정용기로 주입되며 측정 후 배출된다. 현장에서 토양수 중 광해와 관련된 중금속(Cd, Pb, Cu, Zn)분석을 수행할 수 있는 방법 중 하나는 양극 벗김 전압전류법으로 일정전위기와 소프트웨어가 필요하다. 본 연구는 중금속 자동 측정이 가능한 일정전위기의 설계 및 제작과 소프트웨어를 개발하는 것이다. 개발한 일정전위기의 성능을 적혈염을 사용한 순환전위법을 수행해 검증 해 본 결과 농도와 피크 전류 사이는 선형적인 관계가 성립하며 적절한 성능을 보여주고 있다. 개발된자동 측정시스템은 단독으로 사용할 수 있도록 내장형 컴퓨터를 사용하여 중금속 측정기 등 모든 시스템을 제어할 수 있게 제작하였으며, 중금속 이외에도 토양수의 pH, EC, 온도도 동시에 측정할 수 있도록 하였다. CDMA 망을 이용하여 토양수 원격 모니터링이 가능하도록 하였다.

키워드

토양수 채취 및 유동시스템

중금속

양극 벗김 전압전류법

일정전위기

자동 측정시스템

References

Friedman, E.S., Rosenbaum, M.A., Lee, A.W., Lipson, D.A., Land, B.R. and Angenent, L.T., 2012, “A cost-effective and field-ready potentiostat that poises subsurface electrodes to monitor bacterial respiration,” Biosensors and Bioelectronics, Vol. 32, No. 1, pp. 309-313.
Gopinath, A.V. and Russel, D., 2006, “An Inexpensive Field-Portable Programmable Potentiostat,” Chemical Educator, Vol. 11, No. 1, pp. 23-28.
Harvey, D., 2009, Analytical Chemistry 2.0, http://acad. depauw.edu/harvey_web/eText%20Project/pdf%20file/ AnalChem2.0.pdf.
Marcello, D.B., 2005, Trace Elements in Soil Pore Water: A Comparison of Sampling Methods. PhD Thesis, the University of Nottingham, UK.
MIRECO, 2011, “오염토양 개량 및 복원사업에 따른 중금속 거동특성 모니터링,” MIRECO, Seoul, Korea, 2011- 137.
Sauvée, S., Dumestre, A., McBride, M. and Hendershot, W., 1998, “Derivation of soil quality criteria using predicted chemical speciation of Pb²⁺ and Cu²⁺,” Environmental Toxicology and Chemistry, Vol. 17, No. 8, pp. 1481-1489.
Shi, Y., Dou, H., Zhou, A. and Chen, Y.Q., 2008, “Design and fabrication of a miniaturized electrochemical instrument and its preliminary evaluation,” Sensors and Actuators B, Vol. 131, No. 2, pp. 516-524.
Tack, F. and Verloo, M., 1995, “Chemical speciation and fractionation in soil and sediment heavy metal analysis - a review,” International Journal of Environmental Analytical Chemistry, Vol. 59, No. 2-4, pp. 225-238.

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 : 51
No :4
Pages :583-596
DOI :https://doi.org/10.12972/ksmer.2014.51.4.583

[1] Friedman, E.S., Rosenbaum, M.A., Lee, A.W., Lipson, D.A., Land, B.R. and Angenent, L.T., 2012, “A cost-effective and field-ready potentiostat that poises subsurface electrodes to monitor bacterial respiration,” Biosensors and Bioelectronics, Vol. 32, No. 1, pp. 309-313.

[2] Gopinath, A.V. and Russel, D., 2006, “An Inexpensive Field-Portable Programmable Potentiostat,” Chemical Educator, Vol. 11, No. 1, pp. 23-28.

[3] Harvey, D., 2009, Analytical Chemistry 2.0, http://acad. depauw.edu/harvey_web/eText%20Project/pdf%20file/ AnalChem2.0.pdf.

[4] Marcello, D.B., 2005, Trace Elements in Soil Pore Water: A Comparison of Sampling Methods. PhD Thesis, the University of Nottingham, UK.

[5] MIRECO, 2011, “오염토양 개량 및 복원사업에 따른 중금속 거동특성 모니터링,” MIRECO, Seoul, Korea, 2011- 137.

[6] Sauvée, S., Dumestre, A., McBride, M. and Hendershot, W., 1998, “Derivation of soil quality criteria using predicted chemical speciation of Pb²⁺ and Cu²⁺,” Environmental Toxicology and Chemistry, Vol. 17, No. 8, pp. 1481-1489.

[7] Shi, Y., Dou, H., Zhou, A. and Chen, Y.Q., 2008, “Design and fabrication of a miniaturized electrochemical instrument and its preliminary evaluation,” Sensors and Actuators B, Vol. 131, No. 2, pp. 516-524.

[8] Tack, F. and Verloo, M., 1995, “Chemical speciation and fractionation in soil and sediment heavy metal analysis - a review,” International Journal of Environmental Analytical Chemistry, Vol. 59, No. 2-4, pp. 225-238.

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

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