Owusu-Twum Maxwell Y, Kelleghan David, Gleasure George, Connolly Shaun, Forrestal Patrick, Lanigan Gary J, Richards Karl G, Krol Dominika J
Environment, Soils and Land Use Department, Teagasc, Environmental Research Centre, Castle Meadows, Fortyacres, Johnstown Castle, Co., Wexford, Ireland.
Waste Manag Res. 2025 Apr;43(4):568-579. doi: 10.1177/0734242X241265007. Epub 2024 Jul 28.
This study aimed at assessing the efficacy of manure amendments in abating ammonia (NH) and methane (CH) emissions during storage. Two experiments were carried out. Experiment 1 was conducted using 20 L of slurry for 98 days. Treatments were: aluminium sulphate (alum), lactogypsum, zeolite, actiglene, ammonium thiosulphate, biochar, dairy processing waste, Digest-IT and control (without amendment). Experiment 2 was conducted using 660 L of slurry in underground storage tanks for 77 days. Treatments were: sulphuric acid, gypsum, biochar and control (without amendment). NH measurements for experiment 1 and experiment 2 were conducted using the photoacoustic gas monitor and dynamic chamber techniques, respectively. CH was measured using the static chamber technique in both experiments. The effect of amendments on slurry composition was determined at the end of the experiments. Experiment 1 showed a significant reduction in NH emissions in the alum (82%), lactogypsum (46%) and zeolite (32%) treatments relative to the control (100.3% total ammoniacal nitrogen (TAN)). CH was reduced significantly in the alum (87%), ammonium thiosulphate (64%) and lactogypsum (67%) relative to the control (291.9 g m). Experiment 2 showed a significant reduction (32%) in NH emissions in the sulphuric acid relative to the control (4.4% TAN). CH was reduced significantly in the sulphuric acid (46%), gypsum (39%) and biochar (15%) treatments relative to the control (291.9 g m). In general, amendments altered slurry composition such as dry matter, volatile solids, carbon and nitrogen contents at the end of storage. Lactogypsum, alum and sulphuric acid were effective in abating both NH and CH emissions and can contribute to improving air quality.
本研究旨在评估在储存期间粪肥改良剂对减少氨（NH₃）和甲烷（CH₄）排放的效果。进行了两项实验。实验1使用20升粪肥浆液，为期98天。处理方式包括：硫酸铝（明矾）、乳石膏、沸石、活性碳、硫代硫酸铵、生物炭、乳制品加工废料、Digest - IT以及对照（未改良）。实验2使用660升粪肥浆液，在地下储存罐中储存77天。处理方式包括：硫酸、石膏、生物炭以及对照（未改良）。实验1和实验2的NH₃测量分别采用光声气体监测仪和动态箱技术。两项实验中的CH₄均采用静态箱技术进行测量。在实验结束时测定改良剂对粪肥浆液成分的影响。实验1表明，与对照（总氨氮（TAN）为100.3%）相比，明矾（82%）、乳石膏（46%）和沸石（32%）处理的NH₃排放量显著降低。与对照（291.9克/平方米）相比，明矾（87%）、硫代硫酸铵（64%）和乳石膏（67%）处理的CH₄显著降低。实验2表明，与对照（TAN为4.4%）相比，硫酸处理的NH₃排放量显著降低（32%）。与对照（291.9克/平方米）相比，硫酸（46%）、石膏（39%）和生物炭（15%）处理的CH₄显著降低。总体而言，改良剂在储存结束时改变了粪肥浆液的成分，如干物质、挥发性固体、碳和氮含量。乳石膏、明矾和硫酸在减少NH₃和CH₄排放方面均有效，有助于改善空气质量。
