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http://dx.doi.org/10.5012/jkcs.2022.66.2.86

Fermentation Efficiency and Effect on Morphological Change of Nitrogen and Phosphorous with the Litter Types of Cowshed  

Ryoo, Keon Sang (Department of Applied Chemistry, Andong National University)
Publication Information
Journal of the Korean Chemical Society / v.66, no.2, 2022 , pp. 86-91 More about this Journal
Abstract
The manure made of chaff and sawdust as litter was collected separately at a cowshed of a livestock farm in Andondg city. The fermentation efficiency of excreta is greatly influenced by the type and characteristics of litter and a factor to be considered for reducing N and P, the causes of eutrophication. Changes in weight with temperature and constituents of sample were examined using TG-DTA and XRF, respectively. NO2-, NO3-, and PO43- ions and NH4+, T-P and T-N eluted from manure by rain were analyzed using ion chromatograph and UV/Vis spectrometry, respectively. As a result, the fermentation efficiency of excreta in sawdust manure is three times higher as compared with chaff manure. The higher the fermentation efficiency, ammonia nitrogen was highly de-nitrogenated and organic phosphorous were also changed into phosphorous ions. Furthermore, phosphorous ions can be removed by transforming insoluble salts such as calcium phosphate (CaHPO4·3H2O) and struvite (NH4MgPO4·6H2O) with addition of Ca and Mg.
Keywords
N; P; Litter; Manure; Struvite; Calcium phosphate;
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Times Cited By KSCI : 2  (Citation Analysis)
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