Biochar and pyroligneous acid contributed to the sustainable reduction of ammonia emissions: From compost process to soil application
文献类型： 外文期刊
作者： Zhu, Rixing 1 ; Wang, Bingyu 1 ; Zhong, Xudong 1 ; Wang, Lisha 2 ; Zhang, Qiuyue 1 ; Xie, Huifang 1 ; Shen, Yu 3 ; Feng, Yanfang 2 ;
作者机构： 1.Nanjing Univ Sci & Technol, Sch Environm & Biol Engn, Jiangsu Key Lab Chem Pollut Control & Resources Re, Nanjing 210094, Peoples R China
2.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Key Lab Agroenvironm Downstream Yangtze Plain, Minist Agr & Rural Affairs, Nanjing 210014, Peoples R China
3.Nanjing Forestry Univ, Coll Ecol & Environm, Coinnovat Ctr Sustainable Forestry Southern China, Nanjing 210037, Peoples R China
关键词： Aerobic compost; Biochar; Pyroligneous acid; Ammonia; Land application
期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：11.3； 五年影响因子：12.4 ）
ISSN： 0304-3894
年卷期： 2025 年 489 卷
页码：
收录情况： SCI
摘要： Aerobic composting is vital for resource recycling but struggles with high ammonia (NH3) emissions. Biochar (BC) and pyroligneous acid (PA), products of waste pyrolysis, have great potential for reducing NH3 emissions. However, the effective utilization of BC and PA to reduce NH3 emissions in both compost process and product application remains unclear. In this study, different amounts of BC and PA were incorporated into the composting process. The evaluation indexes of compost products were systematically assessed and compared through the cultivation of amaranth. Results demonstrated that rational use of BC and PA could enhance compost quality and effectively reduce NH3 emissions. The addition of 15 %BC+ 3 %PA resulted in a 92.31 % increase in NH4+-N content while reducing NH3 emission by 39.94 % during composting. The synergistic effect achieved by maintaining NH4+-N, enhancing NO3--N, and regulating pH. The compost products in 15 %BC+ 3 %PA complied with the requirements of China's National organic fertilizer standard. Moreover, these compost products demonstrated soil sustained fertility effects, reducing NH3 emission by 41.05 %-69.66 % and increasing total weight of amaranth by 4.62 % by a dosage of 4 %. This study is highly significant for addressing the issue of NH3 emission in both the compost process and soil application.
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