Effect of powerless-ventilation on large-scale facultative composting: Maturity and pollutant gas emissions

IF 6.7 2区环境科学与生态学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Environmental Technology & Innovation Pub Date : 2025-02-26 DOI:10.1016/j.eti.2025.104115

Yanling Chen , Xiaolu Feng , Quan Yu , Shanshan Li , Xiaomin Xie , Zhicheng Xu , Xianjie Han , Wenhai Luo , Yun Li

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引用次数: 0

Abstract

Composting can convert livestock manure into organic fertilizers. However, composting with forced aeration does not allow for large - scale composting due to power consumption. Therefore, this study investigated different powerless – ventilation conditions to improve the performance of large - scale facultative composting. Under the powerless-ventilation with double-membrane-covered and addition of cornstalks treatment, the maturity of compost was most effective (GI reached 118 %). The conditions of powerless - ventilation with membrane covering and cornstalk addition can reduce CH₄ emissions by 84.47 % and H₂S emissions by 28.08 %. The doublemembrane- covered treatment was less effective in reducing gas emission compared with single-membrane-covered. Among the composting conditions, the powerlessventilation with membrane-covered and addition of cornstalks could achieve the best effect of promoting maturity and reducing emissions. The nutrient contents of total nitrogen, total phosphorus, and total potassium increased by 6.21 %, 18.14 %, and 13.22 % under the conditions of powerless-ventilation with membrane-covered and addition of cornstalks. Optimizing the large-scale composting process is an important means to reduce the emission of pollutant gases. This study can provide scientific basis for the large-scale treatment of agricultural waste

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来源期刊

Environmental Technology & Innovation Environmental Science-General Environmental Science

CiteScore

14.00

自引率

4.20%

发文量

435

审稿时长

74 days

期刊介绍： Environmental Technology & Innovation adopts a challenge-oriented approach to solutions by integrating natural sciences to promote a sustainable future. The journal aims to foster the creation and development of innovative products, technologies, and ideas that enhance the environment, with impacts across soil, air, water, and food in rural and urban areas. As a platform for disseminating scientific evidence for environmental protection and sustainable development, the journal emphasizes fundamental science, methodologies, tools, techniques, and policy considerations. It emphasizes the importance of science and technology in environmental benefits, including smarter, cleaner technologies for environmental protection, more efficient resource processing methods, and the evidence supporting their effectiveness.