Physical properties of water treatment residue and their effects on plant growth as a substitute soil

Seok Gon Park, Hisashi Yahata, Kazutoshi Saeki, Kiyoshi Kurosawa, Young Jin Kim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Technology that can reuse a larger amount of water treatment residue (WTR) is required. In this study, the physical properties of the WTR, and the WTR medium to which organic materials (OM) were added, were measured, and the effects of the properties on plant growth were studied to reuse the medium as a substitute soil. Relative gas diffusivity (D/D 0), saturated hydraulic conductivity (K 2) and water retention ability of the fine WTR (particle size<3 mm), the coarse WTR (particle size 3-8 mm) and WTR media all displayed high ability for reuse. However, available water capacities (RAW, PAW) of the WTR and WTR media were lower than those of typical soil. The RAW and PAW of the fine WTR were higher than the coarse WTR because capillary porosity of the fine WTR which was composed of relatively small particles retained more water. The RAW and PAW of the fine media were significantly higher than those of coarse media. The plant growth with the fine medium was greater than the coarse medium in the WTR medium with an OM content of 10%. The RAW and PAW may affect plant growth as a limiting factor more than the D/D 0, K, and water retention ability in the WTR medium with less available water capacity. When making a WTR medium for the substitute soil, a particle size of less than 3 mm of WTR is recommended.

Original languageEnglish
Pages (from-to)481-487
Number of pages7
JournalJournal of the Faculty of Agriculture, Kyushu University
Volume54
Issue number2
Publication statusPublished - Oct 1 2009

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Water Purification
water treatment
physical properties
Soil
plant growth
Growth
soil
available water capacity
Particle Size
particle size
Water
water
saturated hydraulic conductivity
Porosity
diffusivity
porosity

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Agronomy and Crop Science

Cite this

Physical properties of water treatment residue and their effects on plant growth as a substitute soil. / Park, Seok Gon; Yahata, Hisashi; Saeki, Kazutoshi; Kurosawa, Kiyoshi; Kim, Young Jin.

In: Journal of the Faculty of Agriculture, Kyushu University, Vol. 54, No. 2, 01.10.2009, p. 481-487.

Research output: Contribution to journalArticle

Park, Seok Gon ; Yahata, Hisashi ; Saeki, Kazutoshi ; Kurosawa, Kiyoshi ; Kim, Young Jin. / Physical properties of water treatment residue and their effects on plant growth as a substitute soil. In: Journal of the Faculty of Agriculture, Kyushu University. 2009 ; Vol. 54, No. 2. pp. 481-487.
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