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Environ Res

Title:		Recent innovations in various methods of harmful gases conversion and its mechanism in poultry farms
Author(s):		Konkol D; Popiela E; Skrzypczak D; Izydorczyk G; Mikula K; Moustakas K; Opalinski S; Korczynski M; Witek-Krowiak A; Chojnacka K;
Address:		"Department of Animal Nutrition and Feed Management, Faculty of Biology and Animal Science, Wroclaw University of Environmental and Life Sciences, Chelmonskiego 38C, 51-630, Wroclaw, Poland. Department of Environment Hygiene and Animal Welfare, Faculty of Biology and Animal Science, Wroclaw University of Environmental and Life Sciences, Chelmonskiego 38C, 51-630, Wroclaw, Poland. Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Science and Technology, Wroclaw, Poland. Electronic address: dawid.skrzypczak@pwr.edu.pl. Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Science and Technology, Wroclaw, Poland. School of Chemical Engineering, National Technical University of Athens, 9 Iroon Polytechniou Str., Zographou Campus, GR-15780, Athens, Greece"
Journal Title:		Environ Res
Year:		2022
Volume:		20220711
Issue:		Pt 2
Page Number:		113825 -
DOI:		10.1016/j.envres.2022.113825
ISSN/ISBN:		1096-0953 (Electronic) 0013-9351 (Linking)
Abstract:		"Poultry breeding takes place in intensive, high-production systems characterized by high animal density, which is a source of harmful emission of odorous volatile organic compounds (VOCs), ammonia (NH3), hydrogen sulfide (H2S) and greenhouse gases, which in turn sustain animal welfare. This study identified and examined the characteristics of chemical compounds emitted in intensive poultry farming (laying hens, broilers) and their toxicity, which led to recommending methods of deodorization. Emphasis was placed on the law relative to air purification in poultry farms. Various methods of air treatment in poultry farms have been described: the modification of animal diet to improve nutrient retention and decrease the amount of their excrement; chemical oxidation technologies (ozonation, photocatalysis, Fenton reaction); various types/brands of biofilters, bioscrubbers and membrane reactors. Numerous studies show that biofilters can reduce ammonia emissions by 51%, hydrogen sulfide by 80%, odors by 67%, while scrubbers brings down ammonia emissions by 77% and odors by 42%, and the application of UV light lowers ammonia emissions by 28%, hydrogen sulfide by 55%, odors by 69% and VOCs by 52%. The paper presents both the solutions currently used in poultry farming and those which are currently in the research and development phase and, as innovative solutions, could be implemented in the near future"
Keywords:		*Air Pollutants/analysis Ammonia/analysis Animals Chickens Farms Female Gases *Hydrogen Sulfide Poultry *Volatile Organic Compounds/analysis Air purification Animal welfare Biological methods Chemical oxidation technologies Nutrition Odors;
Notes:		"MedlineKonkol, Damian Popiela, Ewa Skrzypczak, Dawid Izydorczyk, Grzegorz Mikula, Katarzyna Moustakas, Konstantinos Opalinski, Sebastian Korczynski, Mariusz Witek-Krowiak, Anna Chojnacka, Katarzyna eng Research Support, Non-U.S. Gov't Netherlands 2022/07/15 Environ Res. 2022 Nov; 214(Pt 2):113825. doi: 10.1016/j.envres.2022.113825. Epub 2022 Jul 11"