Amendment of Livestock Manure with Natural Zeolite-Clinoptilolite and Its Effect on Decomposition Processes during Composting

Eva Šubová, Naďa Sasáková, František Zigo, Ingrid Mindžáková, Mária Vargová, Ján Kachnič and Katarína Veselitz Laktičová
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Eva Šubová: Department of Public Veterinary Medicine and Animal Welfare, University of Veterinary Medicine and Pharmacy, 041 81 Košice, Slovakia
Naďa Sasáková: Department of Public Veterinary Medicine and Animal Welfare, University of Veterinary Medicine and Pharmacy, 041 81 Košice, Slovakia
František Zigo: Department of Nutrition and Animal Husbandry, University of Veterinary Medicine and Pharmacy, 041 81 Košice, Slovakia
Ingrid Mindžáková: Department of Public Veterinary Medicine and Animal Welfare, University of Veterinary Medicine and Pharmacy, 041 81 Košice, Slovakia
Mária Vargová: Department of Public Veterinary Medicine and Animal Welfare, University of Veterinary Medicine and Pharmacy, 041 81 Košice, Slovakia
Ján Kachnič: Department of Public Veterinary Medicine and Animal Welfare, University of Veterinary Medicine and Pharmacy, 041 81 Košice, Slovakia
Katarína Veselitz Laktičová: Department of Public Veterinary Medicine and Animal Welfare, University of Veterinary Medicine and Pharmacy, 041 81 Košice, Slovakia

Agriculture, 2021, vol. 11, issue 10, 1-14

Abstract: The aim of study was to investigate the effect of amendment of cow manure with natural zeolite-clinoptilolite and hydrated lime on decomposition processes over the period of 90 days. Two static piles of amended substrates were constructed consisting of cow manure with an addition of bulking material (2.5% by weight): (1) manure mixed with zeolite (S1); manure mixed with zeolite and lime (S2). Third amendment-free pile served as a control (C). During the experiment, pH level, temperature (T), dry matter (DM), ash, organic matter (OM), C/N ratio, ammonia nitrogen (N-NH 4 + ) and total nitrogen (N t ) were determined. We also determined the counts of total coliform and faecal coliform bacteria and faecal streptococci as indicators of the hygiene level of compost. A significant increase ( p < 0.001) in temperature to 53 °C was observed in S2 compared to C. In S2 we observed a significantly reduced release of N-NH 4 + from the composting substrate compared to C ( p < 0.05). The significant differences were in N t content in C and S2 ( p < 0.001) and between S1 and S2 ( p < 0.05). The concentration of N t increased and caused decrease in the C/N ratio. The content of N t in the substrates with zeolite increased by 44% in S1 and 45% in S2 compared to C. The differences in counts of coliform and faecal coliform bacteria between C and S2 were significant ( p < 0.001). This experiment showed that amendment with zeolite and lime decreased nitrogen losses during composting and indicated sorption effects of zeolite.

Keywords: composting; zeolite; nitrogen; physicochemical factors; microorganism (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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