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http://dx.doi.org/10.7745/KJSSF.2012.45.5.810

Degradation Rate and Velocity under Different Acidic and Alkaline Degradation Agents for Liquid Fertilizer of Rendering By-product  

Seo, Young-Jin (Department of Bio-environmental Sciences, Sunchon National University)
Seo, Dong-Cheol (Department of Bio-environmental Sciences, Sunchon National University)
Choi, Ik-Won (Department of Bio-environmental Sciences, Sunchon National University)
Kang, Se-Won (Department of Bio-environmental Sciences, Sunchon National University)
Lee, Sang-Gyu (Department of Bio-environmental Sciences, Sunchon National University)
Sung, Hwan-Hoo (National Institute of Animal Science, Rural Development Administration)
Kim, Tae-Seung (Soil and Groundwater Research Division, National Institute of Environmental Research)
Kim, Hyun-Goo (Soil and Groundwater Research Division, National Institute of Environmental Research)
Park, Sun-Hwa (Soil and Groundwater Research Division, National Institute of Environmental Research)
Kang, Seog-Jin (National Institute of Animal Science, Rural Development Administration)
Cho, Ju-Sik (Department of Bio-environmental Sciences, Sunchon National University)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.45, no.5, 2012 , pp. 810-816 More about this Journal
Abstract
In order to develop liquid fertilizer using rendering by-product, rates and velocities of degradation from rendering by-product using pig cadaver investigated under different amount of injection and time with degradation agents (KOH, NaOH, $HNO_3$ and $H_2SO_4$). The amount of residue by degradation agent of $HNO_3$ treatment method was higher than that in KOH, NaOH and $H_2SO_4$ treatment methods. The degradation velocities (K; $hr^{-1}$) of rendering by-product in KOH treatment method were higher in the order of 25% ($0.0309hr^{-1}$) > 30% ($0.0268hr^{-1}$) > 20% ($0.0142hr^{-1}$) > 15% ($0.0111hr^{-1}$) > 10% ($0.0102hr^{-1}$) of weight of rendering by-product. In all conditions, the degradation velocity of rendering by-product using $H_2SO_4$ 30% of weight of rendering by-product was rapid than that for KOH, NaOH and $HNO_3$ treatment methods. Degradation rates of rendering by-product using NaOH were similar to that of KOH and $H_2SO_4$ except for $HNO_3$ under injecting 25% and 30% of rendering by-product weight.
Keywords
Liquid fertilizer; Rendering by-product; Degradation; Velocity; Degradation agent;
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