논문 상세보기
Zeolite and Sulfuric Acid Mixture Reduces the Ammonia and Greenhouse Gas During Manure Composting and Utilize as Fertilizer on Maize Cropping KCI 등재
- 언어ENG
- URLhttps://db.koreascholar.com/Article/Detail/438221
pp.294-300
This study aimed to evaluate the effectiveness of a zeolite and sulfuric acid mixture (ZS) as an air filter to mitigate the emissions of ammonia (NH3), nitrous oxide (N2O), and methane (CH4) during the composting of cattle manure. Compared to the control group (blank), ZS reduced NH3 emissions by 91.4%, N2O emissions by 33.6%, and CH4 emissions by 20.0% over the 100-day composting period. Additionally, sulfuric acid in the ZS reacted with NH3, storing it as ammonium sulfate [(NH4)2SO4], which can serve as a source of nutrients such as nitrogen (N) and sulfur (S). To evaluate the fertilizing efficiency of [(NH4)2SO4] in ZS for maize growth, we applied four treatments: control (non-N fertilizer), collected ZS (cZS), cattle manure (organic fertilizer, OF), and urea (chemical fertilizer, CF). Compared to the control, cZS increased total dry weight (DW) by 48%, total digestible nutrients (TDN) by 7.3%, and crude protein (CP) by 77.8%. No significant differences were found among the applications of cZS, OF, and CF. These results suggest that the zeolite mixed with sulfuric acid effectively reduces hazardous gas emissions such as NH3, CH4, and N2O during cattle manure composting. Furthermore, the collected zeolite can potentially be reused as fertilizer, suggesting a positive opportunity for resource recycling to mitigate environmental pollution.
Ⅰ. INTRODUCTION
Ⅱ. MATERIAL and METHODS
1. Experiment design
2. Plant growth and harvest
3. Gas emission sampling
4. Measurements and chemical analysis
5. Statistical analysis
Ⅲ. RESULTS AND DISCUSSION
Ⅳ. ACKNOWLEDGEMENTS
Ⅴ. REFERENCES
