Gaseous emission and maturity in composting of livestock manure and tobacco wastes: Effects of aeration intensities and mitigation by physiochemical additives
文献类型： 外文期刊
作者： Zhang, Bangxi 1 ; Xu, Zhicheng 3 ; Jiang, Tao 1 ; Huda, Nazmul 4 ; Li, Guoxue 3 ; Luo, Wenhai 3 ;
作者机构： 1.Leshan Normal Univ, Coll Chem, Leshan 614004, Peoples R China
2.Guizhou Acad Agr Sci, Inst Soil & Fertiliser, Guiyang 550006, Guizhou, Peoples R China
3.China Agr Univ, Coll Resources & Environm Sci, Beijing Key Lab Farmland Soil Pollut Prevent & Re, Beijing 100193, Peoples R China
4.Macquarie Univ, Sch Engn, Sustainable Energy Syst Engn Grp, Sydney, NSW 2109, Australia
关键词： Composting; Livestock manure; Tobacco wastes; Aeration intensity; Physiochemical additive
期刊名称：ENVIRONMENTAL TECHNOLOGY & INNOVATION （ 影响因子：5.263； 五年影响因子：5.116 ）
ISSN： 2352-1864
年卷期： 2020 年 19 卷
页码：
收录情况： SCI
摘要： This study investigated the effects of aeration intensities (i.e. 0.2, 0.4, 0.6 L kg DM-1 min(-1)) on gaseous emissions and maturity during composting of livestock manure and tobacco wastes. Bamboo biochar and calcium superphosphate were then supplemented to amend the composting process at a suitable aeration intensity. Results show that the aeration intensity of 0.4 L kg DM-1 min(-1) was more favorable to accelerate composting progress, but resulted in much higher gaseous emission than other two conditions. By the end of 35 days of composting, the seed germination index (GI) of all compost products was lower than 80%, although such phytotoxicity could be slightly improved at higher aeration intensity. Nevertheless, biochar and calcium superphosphate could effectively reduce gaseous emission and improve compost maturity. In particular, biochar exhibited a better performance to reduce the emission of greenhouse gas and ammonia by 93.61% and 51.42%, respectively. Furthermore, compost phytotoxicity could be eliminated with GI increase to above 100%. (C) 2020 Elsevier B.V. All rights reserved.
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