Influence of Fly Ash Application on Content of Heavy Metal in the Soil IV. Changes of the Heavy Metal Content of the Infilteration Water at Paddy Field

석탄회(石炭灰) 시용(施用)이 토양중(土壤中) 중금속함량(重金屬含量)에 미치는 영향(影響) IV. 토양(土壤) 침투수중(浸透水中) 중금속(重金屬) 함량변화(含量變化)

  • Kim, Bok-Young (National Agricultural Science and Technology Institute, RDA) ;
  • Lee, Jong-Sik (National Agricultural Science and Technology Institute, RDA) ;
  • So, Kyu-Ho (National Agricultural Science and Technology Institute, RDA) ;
  • Cho, Jae-Kyu (Kyungnam Rural Development Administration) ;
  • Park, Jong-Hyun (Research Center, Korea Electric Power Cooporation)
  • Published : 1995.06.30

Abstract

To investigate the influence of coal fly ash treatment on the heavy metal content in the infilteration water, 12t/10a/year of fly ash(Anthracite and Bituminous) were applicated at two paddy fields of different textured soils, clay loam and sandy loam, for 3 and 2 years, respectively. The infilteration waters were collected 30, 60 and 100cm of soil depth and the heavy metal contents were measured. In the paddy field of clay loam, the content of Zn in the infilteration water were increased with fly ash treatment and increasing soil depth, but it didn't show any significance. In the clay loam soil, successive application of fly ash for 3 years brought to increase Pb, Zn content in the infilteration water, Pb content was the highest at 100cm of soil depth, but the content of others were lower than non-treatment. In the paddy field of sandy loam, successive application of fly ash for 2 years increased Cd, Ni and Mn content in the infilteration water at anthracite ash application, but the contents of other elements were similar or lower than non-treatment.

무연탄회(無煙炭灰)와 유연탄회(有煙炭灰)를 식양토(埴壤土)에서는 12톤/10a씩 1년 및 3년간(年間) 처리(處理)하고, 사양토(砂壤土)에서는 2년간(年間) 처리(處理)된 토양내(土壤內)의 토심(土深) 30cm, 60cm, 100cm에서의 침투수중(浸透水中) 중금속(重金屬) 함량(含量)을 조사(調査)한 결과(結果)는 다음과 같다. 1. 식양토(埴壤土) 논에서 무연탄회(無煙炭灰) 처리(處理)로 Zn는 무처리(無處理)보다 증가(增加)되었으며 토심(土深)이 깊을수록 증가(增加)되는 경향이나 유의성(有意性)은 없었다. 2. 식양질(埴壤質) 논에서 석탄회(石炭灰)를 3년간(年間) 연용(連用)한 결과(結果), 석탄회(石炭灰) 처리(處理)로 Pb와 Zn는 석탄회(石炭灰) 처리(處理)로 무처리구(無處理區) 보다 다소 증가(增加)되었고 토심별(土深別)로는 Pb만이 100cm 토심(土深)에서 증가(增加)되었으나, 기타 성분(成分)은 석탄회처리구(石炭灰處理區)가 무처리구(無處理區) 보다 감소(減少)되었다. 3. 사양질(砂壤質) 논에서 석탄회(石炭灰)를 2년간(年間) 처리(處理)로 무연탄회(無煙炭灰) 처리(處理)에서는 Cd, Ni, Mn은 유의성(有意性)있게 증가(增加)되었고 심토(深土)에서도 증가(增加)되었으나 기타 성분은 유사하거나 감소되었다.

Keywords