摘要详情

ID / 提交时间

22 / 2025-03-29 18:12:50

标题

Gradient-Structured Nanofiber Air Filters for Enhanced Pollution Control in Animal Housing Environments

关键字

Intensive livestock farming,Nanofiber filter,Gradient structure,Air filtration,Ammonia adsorption

主题及专题

1. 畜禽集约化养殖与可持续发展 > （4）养殖业的废气和颗粒物减排

状态

摘要待审

作者

Bo Zhao / Jilin University

Li Guo / Jilin University

摘要

Particulate matter (PM), ammonia (NH₃), and other harmful gases emitted from intensive livestock operations pose significant risks to animal welfare, farm workers, and the regional environment. Addressing these emissions is crucial for promoting sustainable and welfare-oriented livestock farming. In this study, we developed a novel three-layer gradient structure nanofiber filter using electrospinning technology, designed specifically for the simultaneous filtration of PM and adsorption of toxic gases such as NH₃. The composite filter consists of a fluorinated Polylactic acid (PLA)/SiO₂ outer layer for enhanced surface properties, PLA nanofibers in the middle layer for mechanical filtration, and PLA/UiO-66-NH₂ in the inner layer for gas adsorption. This unique gradient structure features progressively smaller pore sizes, providing superior air filtration performance compared to conventional PLA filters and commercial glass fiber filters. At a high flow rate of 5.3 m/s, the composite nanofiber filter demonstrated exceptional filtration efficiency (99.15% for PM_0.5) with a low-pressure drop (89.65 Pa). Furthermore, the filter exhibited outstanding dust-holding capacity, ensuring extended service life, and excellent self-cleaning properties, enabling reuse after simple water rinsing. Notably, the filter also achieved high NH₃ adsorption capacity, making it highly effective for mitigating ammonia emissions from livestock housing. By addressing both PM pollution and hazardous gas emissions, this innovative filter offers a promising solution for improving air quality in animal environments, supporting sustainable and welfare-focused livestock production systems.

重要日期

会议日期

10月20日

2025

至

10月23日

2025
04月15日 2025

摘要截稿日期
05月01日 2025

摘要录用通知日期
06月30日 2025

初稿截稿日期
08月01日 2025

终稿截稿日期
08月31日 2025

初稿录用通知日期
10月23日 2025

注册截止日期

主办单位

International Research Center for Animal Environment and Welfare (IRCAEW)
Chinese Society of Agricultural Engineering (CSAE)
China Agricultural University (CAU)
Rongchang District People’s Government
The National Center of Technology Innovation for Pigs

承办单位

Chongqing Academy of Animal Sciences (CAAS)
Key Lab of Agricultural Engineering in Structure and Environment, Chinese Ministry of Agriculture, Beijing, China