Functional relationship of particulate matter (PM) emissions, animal species, and moisture content during manure application

Environment International

Paul Siller¹  Christian Ammon²  Uwe Rösler³  Thomas Amon⁴  André J.A. Aarnink⁴  Oliver Biniasch⁵  Steffen Münch⁵  Barbara Amon⁶  Nadine Thiel⁶  Tina Kabelitz⁷  Roger Funk⁷  Ulrich Nübel⁷ 

[1] Braunschweig Integrated Center of Systems Biology (BRICS), Technical University, Rebenring 56, 38106 Braunschweig, Germany;Corresponding author.;German Center for Infection Research (DZIF), Partner site Hannover-Braunschweig, Inhoffenstraße 7B, 38124 Braunschweig, Germany;Freie Universität Berlin, Institute for Animal Hygiene and Environmental Health, Department of Veterinary Medicine, Robert-von-Ostertag-Str. 7-13, 14163 Berlin, Germany;Leibniz Centre for Agricultural Landscape Research (ZALF), Working Group Landscape Pedology, Eberswalder Straße 84, 15374 Müncheberg, Germany;Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Department of Microbial Genome Research, Inhoffenstraße 7B, 38124 Braunschweig, Germany;Leibniz Institute for Agricultural Engineering and Bioeconomy e.V. (ATB), Department of Engineering for Livestock Management, Max-Eyth-Allee 100, 14469 Potsdam, Germany;

关键词: Manure management;    Pig;    Poultry;    Fine dust;    Dry matter content;    Microorganism;   

DOI  :  

来源: DOAJ

【 摘 要 】

Livestock manure is recycled to agricultural land as organic fertilizer. Due to the extensive usage of antibiotics in conventional animal farming, antibiotic-resistant bacteria are highly prevalent in feces and manure. The spread of wind-driven particulate matter (PM) with potentially associated harmful bacteria through manure application may pose a threat to environmental and human health. We studied whether PM was aerosolized during the application of solid and dried livestock manure and the functional relationship between PM release, manure dry matter content (DM), treatment and animal species. In parallel, manure and resulting PM were investigated for the survival of pathogenic and antibiotic-resistant bacterial species. The results showed that from manure with a higher DM smaller particles were generated and more PM was emitted. A positive correlation between manure DM and PM aerosolization rate was observed. There was a species-dependent critical dryness level (poultry: 60% DM, pig: 80% DM) where manure began to release PM into the environment. The maximum PM emission potentials were 1 and 3 kg t−1 of applied poultry and pig manure, respectively. Dried manure and resulting PM contained strongly reduced amounts of investigated pathogenic and antibiotic-resistant microorganisms compared to fresh samples. An optimal manure DM regarding low PM emissions and reduced pathogen viability was defined from our results, which was 55–70% DM for poultry manure and 75–85% DM for pig manure. The novel findings of this study increase our detailed understanding and basic knowledge on manure PM emissions and enable optimization of manure management, aiming a manure DM that reduces PM emissions and pathogenic release into the environment.

【 授权许可】

Unknown