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Recycling 2018, 3(3), 32; https://doi.org/10.3390/recycling3030032

Study of Temperature Fields and Heavy Metal Content in the Ash and Flue Gas Produced by the Combustion of Briquettes Coming from Paper and Cardboard Waste

1
Département de Physique, Faculté des Sciences et Techniques, Université Dan Dicko Dankoulodo de Maradi, BP, 465 MARADI, Niger
2
LPCE, Département de Physique, Université Joseph Ki-Zerbo de Ougadougou, 03 BP 7021 Ouagadougou 03, Burkina Faso
3
IRSAT, Institut de Recherche en Sciences Appliquées et Technologies, 03 BP 7047 Ouagadougou, Burkina Faso
*
Author to whom correspondence should be addressed.
Received: 16 May 2018 / Revised: 8 July 2018 / Accepted: 12 July 2018 / Published: 13 July 2018
(This article belongs to the Special Issue Waste Management Practices in Developing Countries)
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Abstract

The present study focused on the combustion of four types of briquettes made from paper and cardboard waste produced in Ouagadougou (Burkina Faso). Rotary and tubular kilns were used to study the combustion. The combustion mean temperatures, nitrogen, phosphorus and potassium (NPK) content in the ash and heavy metals content in the ash and the flue gas were analyzed. The combustion steady phase mean temperatures ranged from 950 °C to 750 °C were obtained according to briquettes type. The temperature favored the transfer of the heavy metal in the flue gas comparatively to the ash mainly for Hg, Cd and Pb. The Pb, Hg and Mn content in flue gas and the ash are higher than their content in the parent wood used for paper production due to the additive during the manufacturing process. The results showed a high content of heavy metal in flue gas produced by combustion of briquette made with office paper and in the ash for the briquette made of corrugated cardboard. Furthermore, the low heavy metal contain in the ash allow their use for soil amendment. However, ash contained a low proportion of NPK (less than 2%) which does not allow their usage as fertilizer alone. View Full-Text
Keywords: briquettes; ash; nitrogen-phosphorus-potassium; heavy metals briquettes; ash; nitrogen-phosphorus-potassium; heavy metals
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Ibrahim, H.G.; Ouiminga, S.K.; Yonli, A.; Sanogo, O.; Daho, T.; Koulidiati, J. Study of Temperature Fields and Heavy Metal Content in the Ash and Flue Gas Produced by the Combustion of Briquettes Coming from Paper and Cardboard Waste. Recycling 2018, 3, 32.

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