Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
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pH Buffer Capacity and Acidification Resistance of Alum Paper Mill Sludge

Alum 제지슬러지의 pH 완충능과 산성화저항성

  • Lee, In-Bog (Dept. of Agric. Chem., Division of Applied Biology & Chemistry, Chungnam National University) ;
  • Chang, Ki-Woon (Dept. of Agric. Chem., Division of Applied Biology & Chemistry, Chungnam National University)
  • 이인복 (충남대학교 농과대학 응용생물화학부 농화학과) ;
  • 장기운 (충남대학교 농과대학 응용생물화학부 농화학과)
  • Published : 1999.03.30
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Abstract

To find the latent effect of paper mill sludges (PMS) with and without alum, and alum paper mill sludge compost(PMSC) on aluminum toxicity of crops, the pH buffer capacity and the acidification resistance index (ARI) for PMSs and PMSC were investigated, comparing to upland soil. Buffer capacities of PMS with and without alum, and PMSC were significantly higher than $2.5cmol^+kg^{-1}$ of check soil as 137, 250, and $147cmol^+kg^{-1}$, respectively. Owing to such high buffer capacity of PMS and PMSC, they showed to be well-resisted to acidification.

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