豚糞 堆肥化 工程에서 石膏 및 石炭灰의 添加效果
Effect of Adding Gypsum and Coal Fly Ash on Composting Process of Pig Manure
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초록
이연구는돈분, 석고와석탄화를혼합물을퇴비화한것이다. 실험에사용한 A 시료(PM : SD=6 : 4) 와 C 시료(PM : SD : GS : CFA =6 :2 :1 :1) 를사용하여퇴비화실험결과 A, C 시료의초기수분함량은 64, 50% 이었고온도, pH 에서도 A시료와비교했을때큰차이는없었으나 A,C 시료의최종 TOC 는약5550, 2900 mg/kg 이었다. 양이온교환능은 A, C 시료와는크게차이는없었으나CEC 값으로보아숙성에더많은시간이필요할것으로생각된다. 그러나석고와석탄회첨가는돈분퇴비화과정에서첨가제로서의역할이있음을알수있었다.
Abstract
This study was conducted to compost the mixture of pig manure, gypsum and fly ash. Initial moisture contents of sample A (pig manure : saw dust = 6 : 4) and C (pig manure : saw dust : gypsum : coal fly ash=6 : 2 : 1 : 1) in the reactor were 64 and 50%. Also temperature and pH of samples in the reactor was nearly the same. Total Organic Carbon (TOC) concentration of sample A and C were about 5500, 2900 mg/kg respectively. This sample was needed a lot of time to mature as viewing cation exchange capacity (CEC) after experiment was over. However added with gypsum and coal fly ash in process of pig manure composting process was suggested that gypsum and coal fly ash have a roles of additive agent.