|
KMID : 1024520010100040275
|
|
Journal of the Environmental Sciences
2001 Volume.10 No. 4 p.275 ~ p.280
|
|
|
Feasibility Study of Producing an Organic Fertilizer using Sediments from Coastal Farming Areas
|
|
Kim Jeong-Bae
Lee Pil-Yong
Kim Chang-Sook
Son Kwang-Tae
Kim Hyung-Chul
|
|
|
Abstract
|
|
|
|
In an attempt to evaluate the possibility of producing an organic fertilizer using sediments from coastal farming areas, the chemical composition, bacteriological quality and heavy metals in the sediments alkalized by conditions : a 1:4 mixture of dry sediment to food wastes and the addition of 30% quicklime to the mixture. According to the classification standard for compost constituent by Higgins, all composts had a low or intermediate grade in T-N and content, a low grade in and a high grade in CaO and MgO content. Stabilization by quicklime and magnesium hydroxide is likely to inhibit th bacterial decomposition of organic matter and the actigity of pathogenic organic. Raising the pH of stabilized sediment to 12 for 2 hours(PSRP criteria of EPA) allowed 99.99% of the coliform group, fecal group and viable cell count to be reduced. the results suggested that the crude fertilizer produced by alkaline stabilization method was innoxious and thereby the sediments from coastal farming areas could be used as organic fertilizer.
|
|
|
KEYWORD
|
|
|
Sediment, Alkaline stabilization, Organic fertilizer, Food waste
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|