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KMID : 1059520210650040249
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Journal of the Korean Chemical Society
2021 Volume.65 No. 4 p.249 ~ p.253
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Study on the Morphological Change and Reduction Plan of Nitrogen and Phosphorous in Litter and Manure of Cow House
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Kim Youn-Jung
Ryoo Sang
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Abstract
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Litter and manure were obtained at a cow house of a livestock farm in Andondg city. We examined the change of formation of nitrogen and phosphorous from these samples and tried to suggest a more useful and realistic way for removing them. Constituent and its content of sample were identified by XRF. NO2-, NO3-, and PO43- ions and NH4+, T-P and T-N released from sample were analyzed using ion chromatograph and UV/Vis spectrometry, respectively. As the results of this study, the ammonia nitrogen in the early stage of cow excretion is a need to make an ammonia gas state that can be immediately volatile by increasing the pH. Nitrogen and phosphorous, the main source of nutrition in green algal bloom can be removed by transforming insoluble salts such as calcium phosphate (CaHPO4·3H2O) and struvite (NH4MgPO4·6H2O), respectively, with addition of Ca and Mg after stimulating fermentation of manure.
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KEYWORD
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N, P, Litter, Manure, Struvite
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