scholarly journals Understanding the environmental impact of phosphorus in acidic soils receiving repeated poultry litter applications

2021 ◽  
Vol 779 ◽  
pp. 146267
Author(s):  
Debolina Chakraborty ◽  
Rishi Prasad ◽  
Anjan Bhatta ◽  
H. Allen Torbert
1993 ◽  
Vol 49 (2) ◽  
pp. 175-177 ◽  
Author(s):  
S.P. Dagnall

In the UK about 1.4 million tonnes of used poultry litter are produced each year. Its disposal by direct use as a fertilizer or by landfill can, in some circumstances, have an adverse environmental impact. Waste-to-energy schemes which generate revenue from the energy produced and may provide fertilizer as a valuable byproduct offer an alternative and environmentally acceptable means of disposal.


Agriculture ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1130
Author(s):  
Nikolett Éva Kiss ◽  
János Tamás ◽  
Nikolett Szőllősi ◽  
Edit Gorliczay ◽  
Attila Nagy

Reducing the use of chemical fertilizers in agriculture is one of the EU Green Deal’s priorities. Since poultry production is increasing worldwide, stabilized poultry litter such as composted pelletized poultry litter (CPPL) is an alternative fertilizer option. On the contrary, compared to chemical fertilizers, the environmental impacts of composted products have not been adequately studied, and no data are currently available for CPPL produced by a closed composting system, such as the Hosoya system. The aim of this research was to assess the role of CPPL as a potential alternative for chemical fertilizer by evaluating the environmental impact of CPPL production via the Hosoya system using common chemical fertilizers. Based on life cycle assessment (LCA), the environmental impact (11 impact categories) was determined for the production of 1 kg of fertilizer, as well as for the production of 1 kg of active substances (nitrogen (N), phosphorus pentoxide (P2O5), and potassium chloride (K2O)) and the theoretical nutrient (NPK) supply of a 100 ha field with CPPL and several chemical fertilizer options. The production of CPPL per kilogram was smaller than that of the chemical fertilizers; however, the environmental impact of chemical fertilizer production per kilogram of active substance (N, P2O5, or K2O) was lower for most impact categories, because the active substance was available at higher concentrations in said chemical fertilizers. In contrast, the NPK supply of a 100 ha field by CPPL was found to possess a smaller environmental impact compared to several combinations of chemical fertilizers. In conclusion, CPPL demonstrated its suitability as an alternative to chemical fertilizers.


Nativa ◽  
2019 ◽  
Vol 7 (6) ◽  
pp. 828
Author(s):  
Nariane Silva Gonçalves ◽  
Claudia Marie Komiyama ◽  
Juliana de Fátima Pereira De Lima ◽  
Marcela Daiana Gouveia De Moraes ◽  
Fátima Balbino Savegnago ◽  
...  

Uma prática comum na avicultura em muitos países, incluindo o Brasil é a reutilização da cama de frango por vários lotes, representa uma forma de diminuir custos com a aquisição de nova cama, aumentar a quantidade de nutrientes na cama para ser utilizada como biofertilizante na agricultura e estabilizar ou diminuir o impacto ambiental com a produção de cama por ave produzida. Com isso, algumas alternativas podem ser estudadas para tratamento da cama de frango reutilizadas, a fim de diminuir os impactos causados as aves, ambiente e seres humanos. Diante disso, os condicionadores químicos vêm sendo utilizados como método de tratamento da cama, pois quando aplicados sobre a mesma agem reduzindo o pH e consequentemente produzindo um ambiente desfavorável para os microorganismos produtores de amônia. Portanto objetivou-se apresentar uma abordagem dos principais fatores que afetam a qualidade da cama de frango, bem como as alternativas para tratamento com ênfase no uso acidificantes aplicados diretamente na cama. O método da acidificação da cama vem se mostrando eficaz para redução do pH e consequentemente para diminuição da volatilização da amônia, desencadeando assim outros fatores qualitativos como a redução da carga microbiológica, uma vez que estas estão ligadas diretamente com o pH da cama.Palavras-chave: amônia; pH; Salmonella; tratamento químico. QUALITY OF CHICKEN LITTER AND THE ALTERNATIVE OF ACIDIFICATION AS TREATMENT ABSTRACT: A common practice in poultry farming in many countries, including Brazil is the reuse of the chicken litter by various lots, represents a way to reduce costs by acquiring a new chicken litter, increasing the amount of nutrients in the chicken litter to be used as a biofertilizer in agriculture and stabilizing or reducing the environmental impact with the production of bedding per chicken produced. With this, some alternatives can be studied for the treatment of reused poultry litter, in order to reduce the impacts caused by chicken, environment and humans. Therefore, the chemical treatment have been used as a method of treatment of the chicken litter, because when applied on the same act reducing the pH and consequently producing an unfavorable environment for the microorganisms producing ammonia. Therefore, it was aimed to present an approach of the main factors that affect the quality of the poultry litter, as well as the alternatives for treatment with emphasis on the use of acidifying agents applied directly to the poultry litter .The method of acidification of the bed has been shown to be effective in reducing pH and consequently reducing the volatilization of ammonia, thus triggering other qualitative factors such as the reduction of the microbiological load, since these are directly linked to the pH of the chicken litter.Keywords: ammonia; pH; Salmonella; chemical treatment.


2019 ◽  
Author(s):  
M Hänsel ◽  
T Bambach ◽  
H Wachtel
Keyword(s):  

2020 ◽  
pp. 149-159
Author(s):  
Jatinder Kataria ◽  
Saroj Kumar Mohapatra ◽  
Amit Pal

The limited fossil reserves, spiraling price and environmental impact due to usage of fossil fuels leads the world wide researchers’ interest in using alternative renewable and environment safe fuels that can meet the energy demand. Biodiesel is an emerging renewable alternative fuel to conventional diesel which can be produced from both edible and non-edible oils, animal fats, algae etc. The society is in dire need of using renewable fuels as an immediate control measure to mitigate the pollution level. In this work an attempt is made to review the requisite and access the capability of the biodiesel in improving the environmental degradation.


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